Metadata: Identification_Information: Citation: Citation_Information: Originator: Christopher S. Moore Publication_Date: 20230112 Title: 2021 Experimental Discrete Field and Laboratory CO2 System Measurements from the Hillsborough River, Florida Geospatial_Data_Presentation_Form: Tabular digital data Larger_Work_Citation: Citation_Information: Originator: Christopher S. Moore Originator: Robert H. Byrne Originator: Kimberly K. Yates Publication_Date: 20230112 Title: CO2 System Measurements Collected from the Hillsborough River, Florida Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/P9J9IYFD Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Other_Citation_Details: 2023a Online_Linkage: https://doi.org/10.5066/P9J9IYFD Description: Abstract: This dataset contains carbon dioxide (CO2) system data collected by scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) to investigate the effects of Mercuric chloride (HgCl2) on low salinity, organic-rich estuarine water samples acquired from the Tampa Bay estuary located in west central Florida. Discrete water samples were collected using two, 30-liter (30L) Niskin bottles to capture surficial waters from the lower Hillsborough River. Filtered water samples collected from one Niskin bottle were "poisoned" with HgCl2 (according to best practices (Dickson and others, 2007), while filtered water samples collected from the second Niskin were left "as is" (unpoisoned) to act as the experimental control. Water samples were analyzed incrementally over a period of three months at the USGS Carbon Analytical Laboratory in St. Petersburg, Florida. This dataset contains the elapsed time experimental results of CO2 system parameters including water temperature (Celsius, C), salinity, pHT (pH on the total scale), total alkalinity (AT, micromoles/kg), and total dissolved inorganic carbon (CT, micromoles/kg). For further information regarding data collection and/or processing methods, please refer to the associated journal publication (Moore and others, 2023b), which is based on a thesis publication by Moore and others (2021). Purpose: This dataset was obtained to assist researchers with determining whether HgCl2-poisoned water samples from organic-rich estuarine waters accurately reflected the in-situ CO2 system characteristics of the samples observed and recorded at the time of collection. Data were collected during USGS field activity number (FAN) 2021-354-FA. Additional survey and data details are available from the USGS Coastal and Marine Geoscience Data System (CMGDS) at, https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-354-FA. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210126 Ending_Date: 20210427 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -82.4646 East_Bounding_Coordinate: -82.4646 North_Bounding_Coordinate: 28.0138 South_Bounding_Coordinate: 28.0138 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:a27bb28d-102f-41ee-acfa-99f58621c2d6 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: environment Theme_Keyword: inlandWaters Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geochemistry Theme_Keyword: surface water quality Theme_Keyword: water chemistry Theme_Keyword: water temperature Theme_Keyword: salinity Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: total dissolved inorganic carbon Theme_Keyword: total alkalinity Theme_Keyword: pH Theme_Keyword: coastal acidification Place: Place_Keyword_Thesaurus: Geographic names Information System (GNIS) Place_Keyword: Hillsborough River Place_Keyword: Tampa Bay Place_Keyword: Hillsborough Bay Place_Keyword: Florida Place_Keyword: Gulf of Mexico Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Christopher S. Moore Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SC Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: 727-502-8106 Contact_Electronic_Mail_Address: csmoore@usgs.gov Cross_Reference: Citation_Information: Originator: Moore, Christopher S. Originator: Byrne, Robert H. Originator: Yates, Kimberly K. Publication_Date: 2023 Title: An Assessment of HgII to Preserve Carbonate System Parameters in Organic-Rich Estuarine Waters Publication_Information: Publication_Place: Online Publisher: Biogeosciences Other_Citation_Details: 2023b Online_Linkage: Unknown Cross_Reference: Citation_Information: Originator: Moore, Christopher S. Publication_Date: 2021 Title: Riverine and Estuarine CO2-System Studies on the West Coast of Florida Publication_Information: Publication_Place: Tampa, Florida Publisher: University of South Florida Online_Linkage: https://digitalcommons.usf.edu/etd/9191 Cross_Reference: Citation_Information: Originator: Sun, C. Publication_Date: 20101206 Title: GTSPP Real-Time Quality Control Manual Revised Edition, 2010 Series_Information: Series_Name: Book Issue_Identification: 2019-1003 Publication_Information: Publication_Place: Paris, France Publisher: United Nations Educational, Scientific and Cultural Organization (UNESCO) Other_Citation_Details: IOC Manuals and Guides, No. 22 rev. 1 Online_Linkage: https://oceanexpert.org/document/6437 Cross_Reference: Citation_Information: Originator: Byrne Robert H. Originator: Clayton Tonya D. Publication_Date: 199310 Title: Spectrophotometric Seawater pH Measurements: Total Hydrogen Ion Concentration Scale Calibration of M-cresol Purple and At-sea Results Series_Information: Series_Name: Deep Sea Research Part I: Oceanographic Research Papers Issue_Identification: Volume 40, Issue 10 Publication_Information: Publication_Place: Great Britain Publisher: Elsevier Other_Citation_Details: Pages 2115-2129 Online_Linkage: https://doi.org/10.1016/0967-0637(93)90048-8 Cross_Reference: Citation_Information: Originator: Dickson, Andrew G. Publication_Date: 199002 Title: Standard Potential of the Reaction: AgCl(s)+12H2(g)=Ag(s)+HCl(aq), and the Standard Acidity Constant of the Ion HSO4 in Synthetic Sea Water from 273.15 to 318.15 K Series_Information: Series_Name: The Journal of Chemical Thermodynamics Issue_Identification: Volume 22, Issue 2 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier Online_Linkage: https://doi.org/10.1016/0021-9614(90)90074-z Cross_Reference: Citation_Information: Originator: Dickson, Andrew G. Originator: Sabine, Christopher L. Originator: Christian, James R. Publication_Date: 200710 Title: Guide to Best Practices for Ocean CO2 Measurements Publication_Information: Publication_Place: British Columbia, Canada Publisher: North Pacific Marine Science Organization Other_Citation_Details: PICES Special Publication 3, 191 pages Online_Linkage: https://www.ncei.noaa.gov/access/ocean-carbon-data-system/oceans/Handbook_2007.html Cross_Reference: Citation_Information: Originator: Dickson, Andrew G. Publication_Date: 2010 Title: Standards for Ocean Measurements Series_Information: Series_Name: Oceanography Issue_Identification: Volume 23, No. 3 Publication_Information: Publication_Place: La Jolla, California Publisher: The Oceanography Society Other_Citation_Details: Pages 34-47 Online_Linkage: https://doi.org/10.5670/oceanog.2010.22 Cross_Reference: Citation_Information: Originator: van Heuven, Steven Originator: Pierrot, Denis Originator: Rae, James W. Originator: Lewis, E. Originator: Wallace, D.W.R. Publication_Date: 201111 Title: MATLAB Program Developed for CO2 System Calculations Publication_Information: Publication_Place: Oak Ridge National Laboratory, Oak Ridge, Tennessee Publisher: Carbon Dioxide Information Analysis Center, U.S. Department of Energy Online_Linkage: https://cdiac.ess-dive.lbl.gov/ftp/co2sys/CO2SYS_calc_MATLAB_v1.1/ Cross_Reference: Citation_Information: Originator: Müller, Jens D. Originator: Rehder, Gregor Publication_Date: 20180710 Title: Metrology of pH Measurements in Brackish Waters—Part 2: Experimental Characterization of Purified meta-Cresol Purple for Spectrophotometric pHT Measurements Series_Information: Series_Name: Frontiers in Marine Science Issue_Identification: Volume 5 Publication_Information: Publication_Place: Rostock, Germany Publisher: Frontiers Media S.A. Online_Linkage: https://doi.org/10.3389/fmars.2018.00177 Cross_Reference: Citation_Information: Originator: Dickson, Andrew G. Originator: Goyet, C. Publication_Date: 19940901 Title: Handbook of Methods for the Analysis of the Various Parameters of the Carbon Dioxide System in Sea Water Series_Information: Series_Name: Technical Report Issue_Identification: Version 2 Publication_Information: Publication_Place: Washington, DC Publisher: U.S. Department of Energy Online_Linkage: https://doi.org/10.2172/10107773 Cross_Reference: Citation_Information: Originator: Yao, Wensheng. Originator: Byrne, Robert H. Publication_Date: 19980801 Title: Simplified Seawater Alkalinity Analysis: Use of linear array spectrometers Series_Information: Series_Name: Deep Sea Research Part I: Oceanographic Research Papers Issue_Identification: Version 45, Issue 8 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier Other_Citation_Details: Pages 1383-1392 Online_Linkage: https://doi.org/10.1016/S0967-0637(98)00018-1 Cross_Reference: Citation_Information: Originator: Waters, Jason F. Originator: Millero, Frank J. Originator: Woosley, R.J. Publication_Date: 20141020 Title: Corrigendum to “The Free Proton Concentration Scale for Seawater pH”, [MARCHE: 149 (2013) 8-22] Series_Information: Series_Name: Marine Chemistry Issue_Identification: Volume 165 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier Other_Citation_Details: Pages 66-67 Online_Linkage: https://doi.org/10.1016/j.marchem.2014.07.004 Cross_Reference: Citation_Information: Originator: Liu, Xuewu Originator: Byrne, Robert H. Originator: Lindemuth, Michael Originator: Easley, Regina Originator: Mathis, Jeremy T. Publication_Date: 20150825 Title: An Automated Procedure for Laboratory and Shipboard Spectrophotometric Measurements of Seawater Alkalinity: Continuously Monitored Single-step Acid Additions Series_Information: Series_Name: Marine Chemistry Issue_Identification: Volume 174 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier Other_Citation_Details: Pages 141-146 Online_Linkage: https://doi.org/10.1016/j.marchem.2015.06.008 Cross_Reference: Citation_Information: Originator: Hudson-Heck, Ellie Originator: Xuewu, Liu. Originator: Byrne, Robert H. Publication_Date: 20210711 Title: Purification and Physical–Chemical Characterization of Bromocresol Purple for Carbon System Measurements in Freshwaters, Estuaries, and Oceans Series_Information: Series_Name: ACS Omega Issue_Identification: Volume 6, Issue 28 Publication_Information: Publication_Place: Washington, DC Publisher: American Chemical Society Other_Citation_Details: Pages 17941-17951 Online_Linkage: https://doi.org/10.1021/acsomega.1c01579 Cross_Reference: Citation_Information: Originator: Lee, Kitack Originator: Kim, Tae-Wook Originator: Byrne, Robert H. Originator: Millero, Frank J. Originator: Feely, Richard A. Originator: Liu, Yong-Ming Publication_Date: 20100315 Title: The Universal Ratio of Boron to Chlorinity for the North Pacific and North Atlantic Oceans Series_Information: Series_Name: Geochimica et Cosmochimica Acta Issue_Identification: Volume 74, Issue 6 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier Other_Citation_Details: 1801-1811 Online_Linkage: https://doi.org/10.1016/j.gca.2009.12.027 Cross_Reference: Citation_Information: Originator: Gordon, Louis I. Originator: Jennings, Jr., Joe C. Originator: Ross, Andrew A. Originator: Krest, James M. Publication_Date: 19931104 Title: A Suggested Protocol for Continuous Flow Automated Analysis of Seawater Nutrients (Phosphate, Nitrate, Nitrite and Silicic Acid) in the WOCE Hydrographic Program and the Joint Global Ocean Fluxes Study Series_Information: Series_Name: World Ocean Circulation Experiment (WOCE) Operation Manual Issue_Identification: WHP Office Report 91-1 Publication_Information: Publication_Place: Woods Hole, Massachusetts Publisher: Woods Hole Oceanographic Institute Other_Citation_Details: WOCE Rept 77 No 68/91. Pages 1-52. Online_Linkage: http://www.ioccp.org/images/06Nutrients/WOCE_nutrients-manual_1993.pdf Cross_Reference: Citation_Information: Originator: Dore, John E. Originator: Houlihan, Terrence. Originator: Hebel, Dale V. Originator: Tien, Georgia Originator: Tupas, Luis Originator: Karl, David M. Publication_Date: 199608 Title: Freezing as a Method of Sample Preservation for the Analysis of Dissolved Inorganic Nutrients in Seawater Series_Information: Series_Name: Marine Chemistry Issue_Identification: Volume 53, Issues 3-4 Publication_Information: Publication_Place: Amsterdam, Netherlands Publisher: Elsevier Other_Citation_Details: Pages 173-185 Online_Linkage: https://doi.org/10.1016/0304-4203(96)00004-7 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Accuracy of total alkalinity (AT) and total dissolved inorganic carbon (CT) measurements, both HgCl2-poisoned and unpoisoned, are determined by measuring certified reference materials (CRMs) supplied by SCRIPPS Institute of Oceanography (Dickson, 2010) and comparing measured to known values. CRM analyses were performed daily before and after analysis of samples. Sample values are corrected to CRMs using a correction factor based on the difference between the known and measured values of the CRMs. Precision was determined by repeat analysis of samples and CRMs. Spectrophotometric pH measurements require no calibration. Precision of pH analysis, both HgCl2-poisoned and unpoisoned, is determined by repeat measurements of replicate samples. The micro thermosalinograph used to collect ancillary data was factory calibrated. Missing values are denoted in the spreadsheets with an entry value of -99. The laboratory total dissolved inorganic carbon and total alkalinity data were generated using certified reference materials to correct measured values and validate the quality of the data reported. Logical_Consistency_Report: No formal logical accuracy tests were conducted. Completeness_Report: Missing data were the result of either technological failure or lack of data collection due to sampling design. Quality flags indicating the status of individual data points are as follows; Flag 0 = No quality control, Flag 1 = Good data, Flag 2= Probably good data, Flag 3 = Probably bad data, Flag 4 = Bad data, Flag 5 = Changed by analyst due to correction, Flag 9 = The value of the element is missing. Only quality flags 1 and 9 appear in this dataset. Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Accuracy was checked against Global Positioning System (GPS) values provided by the manufacturer, Garmin GPSMAP64st and accuracy < 10 meters (m). Point data were collected in the Word Geodetic System of 1984 (WGS84) coordinate system. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Accuracy was checked against GPS values provided by the manufacturer, Garmin GPSMAP64st and accuracy <10 m. Lineage: Process_Step: Process_Description: Discrete water samples from the Hillsborough River study site were collected on January 26, 2021, from the boardwalk along Lowry Park Riverside Trail (28.0138° N, -82.4646° W) from two 30 L Niskin bottles that were used to collect surficial river water. For additional details on experiment setup, see (Moore and others, 2022b). Prior to the Niskin bottle water sample collection, surficial river water temperature and salinity were measured and recorded in the field using a Seabird Scientific Micro Thermosalinograph. Once surficial water was collected in each Niskin, the water from each Niskin was filtered, promptly analyzed to establish the samples’ initial spectrophotometric pHT, and then collected for analysis of major inorganic nutrients. The filtration was performed under positive pressure using a 12V peristaltic pump tubing. The tubing was connected to a 142 mm diameter acrylic filter housing that contained a 0.45 µm cellulose nitrate filter. Water collected for pH analysis followed the methods of Clay and Byrne (1993) where samples were analyzed spectrophotometrically using an Ocean Optics USB2000 spectrometer and Ocean Optics LS-1 light source with purified meta-Cresol purple. pH was calculated on the total scale using the algorithms of Müller and Rehder (2018) and temperature-corrected using the algorithms of Waters and others (2014) using CO2sys.m (van Heuven and others, 2011). Water collected for analysis of major inorganic nutrients followed the methods of Gordon and others (1993) and were additionally filtered using a sterile 0.22 µm pressure filter attached by Luer lock to a 60 mL syringe and then stored in a 30 mL acid-washed high-density polyethylene bottle. Once each nutrient sample bottle was sealed, the bottle was stored on ice, transported to the laboratory, and then frozen until analysis (Dore and others, 1996). Next, water samples from each Niskin were consecutively filtered into a total of 70 borosilicate glass bottles (300 mL total volume) using the methods described by Dickson et al. (2007). Half of the samples (i.e., 35 samples from one Niskin bottle) were poisoned with 100 µL of 6.5% HgCl2. The 35 filtered water samples from the second Niskin were not poisoned. Both sets of bottles were promptly sealed with grease for transport. After these samples were collected and processed, additional water from each Niskin was filtered, analyzed spectrophotometrically to establish the samples’ final pHT, and then collected for analysis of major inorganic nutrients. All water samples were then transported to the Carbon Laboratory at the U.S. Geological Survey (600 4th St. S St. Petersburg, FL 33701) where the nutrient samples were frozen for later analysis. All borosilicate glass bottles were stored in the dark at room temperature (25°C) and sequentially analyzed, beginning hours after collection and subsequently over a period of three months, for pHT (total scale), total dissolved inorganic carbon (CT) and total alkalinity (AT). Process_Date: 20210126 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Christopher S. Moore Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SC Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: 727-502-8106 Contact_Electronic_Mail_Address: csmoore@usgs.gov Process_Step: Process_Description: Water samples were sequentially analyzed, beginning hours after collection, over a period of three months for pHT (total scale), total dissolved inorganic carbon (CT) and total alkalinity (AT) respectively in the USGS SPCMSC Carbon Laboratory. During each sample analysis, duplicate water samples of HgCl2 poisoned and unpoisoned bottles were first analyzed for pH, where sample water was poured into two 10-centimeter (cm) pathlength cells that were placed in a water bath set to 20°C. Once temperature equilibrated, pH analysis was performed using the methods of Clayton and Byrne (1993) using an Ocean Optics USB2000 spectrometer and Ocean Optics LS-1 light source with purified meta-Cresol purple indicator dye. pH was calculated on the total scale using the algorithms of Müller and Rehder (2018) and temperature corrected using the algorithms of Waters and others (2014) using CO2sys.m (van Heuven and others, 2011). Next, total dissolved inorganic carbon analysis was performed using a CM5017 CO2 carbon coulometer coupled to a CM5330 acidification module following the methods described by Dickson and Goyet (1994). Each water sample (~20 mL) was drawn from a bottle after pH analysis using a 60 mL syringe attached to a three-way Luer lock valve and stopper to minimize gas exchange. Sample weight was determined from the difference in syringe weight before and after the sample was injected through a septum on the stripping chamber of the acidification module, using a Denver Instruments PI-214 analytical balance. Samples were acidified with ~10 mL of 8.5% of phosphoric acid (H3PO4-). Analytical grade nitrogen (N2) gas was used as the carrier gas of CO2 from the acidified sample to the coulometer. The titration endpoint was determined by the coulometer, and CT was calculated using software from UIC, Inc. Accuracy and precision was determined from the analysis of certified reference materials (CRM) Dickson (2010). Lastly, total alkalinity analysis was performed, using the spectrophotometric methods of Yao and Byrne (1998) and Liu and others (2015). Each water sample (~100 mL) was poured from a bottle after CT analysis into an open glass cell (Hellma Cells, Inc.). Mass of the sample was determined gravimetrically using a Denver Instruments PI-214 analytical balance and placed within a custom plastic frame connected to an Ocean Optics LS-1 tungsten light source and Ocean Optics USB2000 spectrometer. Bromocresol purple indicator dye (4 millimolar (mM)) was administered by pipette and the sample was titrated using 0.100 Normal (N) standardized hydrochloric acid (HCl) using a plastic 10 mL syringe fitted with a Teflon needle. Absorbance measurements were made using the Ocean Optics software package OOIBase 32. Solution pHT was measured continuously throughout the titration to and end endpoint of near pH 4.3. The total weight of the added acid was determined from the difference in the syringe weight before and after acid addition. At the end of each titration, the solution was purged with a stream of N2 gas pre-saturated with water (H2O). After purging, final absorbance measurements were made, and solution temperature was determined using a Fluke 51 II Handheld Digital Probe Thermometer. AT was calculated using the equations of Hudson-Heck and others (2021). Accuracy and precision were determined from analysis of CRMs from Dickson (2010). Process_Date: 20210427 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Christopher S. Moore Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SC Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: 727-502-8106 Contact_Electronic_Mail_Address: csmoore@usgs.gov Spatial_Data_Organization_Information: Indirect_Spatial_Reference: Boardwalk of Lowry Park Riverside Trail in Hillsborough County, FL Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 20 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.01 Longitude_Resolution: 0.01 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System of 1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: CO2_System_Field_Measurements_in_Hillsborough_River_Florida.csv, CO2_System_Field_Measurements_in_Hillsborough_River_Florida.xlsx Entity_Type_Definition: Comparative discrete water sample measurements made in the field from a single location on the Hillsborough River in Florida, U.S. on January 26, 2021. Data are provided as comma separated values (.csv) and Microsoft Excel files (.xlsx), that contain the following information: coordinates, date, time, water temperature, salinity, pH, nitrate, nitrite, ammonium, phosphate, silica and data quality flags for each parameter. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: Site_Description Attribute_Definition: Description of the physical location where the measurements were collected. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Hillsborough River Enumerated_Domain_Value_Definition: The name of the geographic location at the sampling site. Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude coordinates in decimal degrees, measured in the World Geodetic System of 1984 (WGS84) and acquired using a handheld Garmin 64ST GPS. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 28.0138 Range_Domain_Maximum: 28.0138 Attribute_Units_of_Measure: Decimal degrees Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude coordinates in decimal degrees, measured in WGS84 and acquired using a handheld Garmin 64ST GPS. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -82.4646 Range_Domain_Maximum: -82.4646 Attribute_Units_of_Measure: Decimal degrees Attribute: Attribute_Label: DATETAG Attribute_Definition: A numeric value for calendar date, showing when each sample was collected. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 01/26/2021 Range_Domain_Maximum: 01/26/2021 Attribute_Units_of_Measure: Units correspond to month, day, and year in the format MM/DD/YYYY. Attribute: Attribute_Label: TIMETAG Attribute_Definition: Timestamp showing the time of day each sample was collected. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13:00 Range_Domain_Maximum: 14:45 Attribute_Units_of_Measure: Hours and minutes in the format HH:MM. Attribute: Attribute_Label: T(W)_(C) Attribute_Definition: Water temperature, measured in degrees Celsius. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 21.4684 Range_Domain_Maximum: 21.4684 Attribute_Units_of_Measure: Celsius Attribute: Attribute_Label: QF_T(W) Attribute_Definition: A numeric value indicating the quality of the reported temperature data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: SALINITY Attribute_Definition: A numeric value for salinity, acquired using a Seabird Scientific Micro Thermosalinograph that measured temperature and salinity. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.4385 Range_Domain_Maximum: 3.4385 Attribute: Attribute_Label: QF_SALINITY Attribute_Definition: A numeric value indicating the quality of the reported salinity data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_pHT1 Attribute_Definition: A numeric value reported for the first spectrophotometric pHT (total scale) measurement result, in a series of replicate measurements sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.295 Range_Domain_Maximum: 7.300 Attribute: Attribute_Label: QF_Niskin1_pHT1 Attribute_Definition: A numeric value that indicates the quality of the first pHT (total scale) measurement, pHT1, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_pHT2 Attribute_Definition: A numeric value reported for the second spectrophotometric pHT (total scale) measurement result, in a series of replicate measurements sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.284 Range_Domain_Maximum: 7.305 Attribute: Attribute_Label: QF_Niskin1_pHT2 Attribute_Definition: A numeric value that indicates the quality of the second pHT (total scale) measurement, pHT2, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_pHT3 Attribute_Definition: A numeric value reported for the third spectrophotometric pHT (total scale) measurement result, in a series of replicate measurements sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.296 Range_Domain_Maximum: 7.299 Attribute: Attribute_Label: QF_Niskin1_pHT3 Attribute_Definition: A numeric value that indicates the quality of the third pHT (total scale) measurement, pHT3, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_pHT1 Attribute_Definition: A numeric value reported for the first spectrophotometric pHT (total scale) measurement result, in a series of replicate measurements sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.299 Range_Domain_Maximum: 7.328 Attribute: Attribute_Label: QF_Niskin2_pHT1 Attribute_Definition: A numeric value that indicates the quality of the first pHT (total scale) measurement, pHT1, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_pHT2 Attribute_Definition: A numeric value reported for the second spectrophotometric pHT (total scale) measurement result, in a series of replicate measurements sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.321 Range_Domain_Maximum: 7.326 Attribute: Attribute_Label: QF_Niskin2_pHT2 Attribute_Definition: A numeric value that indicates the quality of the second pHT (total scale) measurement, pHT2, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_pHT3 Attribute_Definition: A numeric value reported for the third spectrophotometric pHT (total scale) measurement result, in a series of replicate measurements sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.314 Range_Domain_Maximum: 7.352 Attribute: Attribute_Label: QF_Niskin2_pHT3 Attribute_Definition: A numeric value that indicates the quality of the third pHT (total scale) measurement, pHT3, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_[NO3+NO2] Attribute_Definition: A numeric value reported for the nitrate + nitrite (micromoles per kilogram of seawater) measurement result sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.78 Range_Domain_Maximum: 5.01 Attribute: Attribute_Label: QF_Niskin1_[NO3+NO2] Attribute_Definition: A numeric value that indicates the quality of the nitrate + nitrite (micromoles per kilogram of seawater) measurement, NO3+NO2, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_[NO2] Attribute_Definition: A numeric value reported for the nitrite (micromoles per kilogram of seawater) measurement result sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.50 Attribute: Attribute_Label: QF_Niskin1_[NO2] Attribute_Definition: A numeric value that indicates the quality of the nitrite (micromoles per kilogram of seawater) measurement, NO2, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_[NH4] Attribute_Definition: A numeric value reported for the ammonium (micromoles per kilogram of seawater) measurement result sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.04 Range_Domain_Maximum: 4.33 Attribute: Attribute_Label: QF_Niskin1_[NH4] Attribute_Definition: A numeric value that indicates the quality of the ammonium (micromoles per kilogram of seawater) measurement, NH4, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_[PO4] Attribute_Definition: A numeric value reported for the phosphate (micromoles per kilogram of seawater) measurement result sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.29 Range_Domain_Maximum: 2.32 Attribute: Attribute_Label: QF_Niskin1_[PO4] Attribute_Definition: A numeric value that indicates the quality of the phosphate (micromoles per kilogram of seawater) measurement, PO4, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin1_[Silica] Attribute_Definition: A numeric value reported for the silica (micromoles per kilogram of seawater) measurement result sampled from Niskin bottle 1. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 69.75 Range_Domain_Maximum: 70.30 Attribute: Attribute_Label: QF_Niskin1_[Silica] Attribute_Definition: A numeric value that indicates the quality of the silica (micromoles per kilogram of seawater) measurement, silicic acid, sampled from Niskin bottle 1. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_[NO3+NO2] Attribute_Definition: A numeric value reported for the nitrate + nitrite (micromoles per kilogram of seawater) measurement result, sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.68 Range_Domain_Maximum: 2.18 Attribute: Attribute_Label: QF_Niskin2_[NO3+NO2] Attribute_Definition: A numeric value that indicates the quality of nitrate + nitrite (micromoles per kilogram of seawater) measurement, NO3+NO2, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_[NO2] Attribute_Definition: A numeric value reported for the nitrite (micromoles per kilogram of seawater) measurement result, sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.28 Range_Domain_Maximum: 0.51 Attribute: Attribute_Label: QF_Niskin2_[NO2] Attribute_Definition: A numeric value that indicates the quality of nitrite (micromoles per kilogram of seawater) measurement, NO2, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_[NH4] Attribute_Definition: A numeric value reported for the ammonium (micromoles per kilogram of seawater) measurement result, sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.63 Range_Domain_Maximum: 3.34 Attribute: Attribute_Label: QF_Niskin2_[NH4] Attribute_Definition: A numeric value that indicates the quality of ammonium (micromoles per kilogram of seawater) measurement, NH4, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_[PO4] Attribute_Definition: A numeric value reported for the phosphate (micromoles per kilogram of seawater) measurement result, sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.25 Range_Domain_Maximum: 1.39 Attribute: Attribute_Label: QF_Niskin2_[PO4] Attribute_Definition: A numeric value that indicates the quality of phosphate (micromoles per kilogram of seawater) measurement, PO4, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Niskin2_[Silica] Attribute_Definition: A numeric value reported for the silicic acid (micromoles per kilogram of seawater) measurement result, sampled from Niskin bottle 2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 89.93 Range_Domain_Maximum: 90.52 Attribute: Attribute_Label: QF_Niskin2_[Silica] Attribute_Definition: A numeric value that indicates the quality of silicic acid (micromoles per kilogram of seawater) measurement, Silica, sampled from Niskin bottle 2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Detailed_Description: Entity_Type: Entity_Type_Label: CO2_System_Laboratory_Measurements_in_Hillsborough_River_Florida.csv, CO2_System_Laboratory_Measurements_in_Hillsborough_River_Florida.xlsx Entity_Type_Definition: Comparative laboratory results from discrete measurements of HgCl2-poisoned and unpoisoned water samples collected from a single location on the Hillsborough River, Florida, U.S. on January 26, 2021. Data are provided as CSV and XLSX files, that contain the following information: coordinates, date of analysis, days after collection, salinity, HgCl2 pH, unpoisoned pH, HgCl2 total dissolved inorganic carbon (HgCl2_CT), unpoisoned total dissolved inorganic carbon (Unpoisoned_CT), HgCl2 total alkalinity (HgCl2_AT), unpoisoned total alkalinity (Unpoisoned_AT), calculated HgCl2 total alkalinity (Calculated_HgCl2_AT), calculated unpoisoned total alkalinity (Calculated_Unpoisoned_AT), and data quality flags for each parameter. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: Site_Description Attribute_Definition: Description of the physical location where the measurements were collected. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Hillsborough River Enumerated_Domain_Value_Definition: The name of the geographic location at the sampling site. Enumerated_Domain_Value_Definition_Source: USGS Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude coordinates in decimal degrees, measured in the World Geodetic System of 1984. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 28.0138 Range_Domain_Maximum: 28.0138 Attribute_Units_of_Measure: Decimal degrees Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude coordinates in decimal degrees, measured in the World Geodetic System of 1984. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -82.4646 Range_Domain_Maximum: -82.4646 Attribute_Units_of_Measure: Decimal degrees Attribute: Attribute_Label: Date_of_Analysis Attribute_Definition: A numeric value for calendar date, showing when each sample was analyzed. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 01/26/2021 Range_Domain_Maximum: 04/27/2021 Attribute_Units_of_Measure: Units correspond to month, day, and year in the format MM/DD/YYYY. Attribute: Attribute_Label: Days_After_Collection Attribute_Definition: A numeric value representing the number of days after sample collection when the laboratory analysis occurred. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.25 Range_Domain_Maximum: 91 Attribute_Units_of_Measure: Number of 24-hour days. Attribute: Attribute_Label: T(W)_(C) Attribute_Definition: Water temperature, measured in degrees Celsius at the time of sample collection. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 21.4684 Range_Domain_Maximum: 21.4684 Attribute_Units_of_Measure: Celsius Attribute: Attribute_Label: QF_T(W) Attribute_Definition: A numeric value indicating the quality of the reported temperature data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: SALINITY Attribute_Definition: A numeric value for salinity, acquired using a Seabird Scientific Micro Thermosalinograph that measured temperature and salinity. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.4385 Range_Domain_Maximum: 3.4385 Attribute: Attribute_Label: QF_SALINITY Attribute_Definition: A numeric value indicating the quality the quality of the reported salinity data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_pHT1 Attribute_Definition: A numeric value for the first pH using the total scale from water samples poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.247 Range_Domain_Maximum: 7.334 Attribute: Attribute_Label: QF_HgCl2_pHT1 Attribute_Definition: A numeric value that indicates the quality of pHT1 data poisoned with HgCl2. Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_pHT2 Attribute_Definition: A numeric value for the second pH using the total scale from water samples poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.244 Range_Domain_Maximum: 7.334 Attribute: Attribute_Label: QF_HgCl2_pHT2 Attribute_Definition: A numeric value that indicates the quality of pHT2 data poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_pHT3 Attribute_Definition: A numeric value for the third pH using the total scale from water samples poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.294 Range_Domain_Maximum: 7.294 Attribute: Attribute_Label: QF_HgCl2_pHT3 Attribute_Definition: A numeric value that indicates the quality of pHT3 data poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_CT1_(micromol/kg) Attribute_Definition: A numeric value for the first total dissolved inorganic carbon, CT1, measured in micromoles per kilogram of seawater, that is poisoned with HgCl2 in a series of replicate measurements. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3085.2 Range_Domain_Maximum: 3101.9 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_HgCl2_CT1 Attribute_Definition: A numeric value that indicates the quality of the reported total dissolved inorganic carbon data, CT1, poisoned with HgCl2. Attribute_Definition_Source: Sun, 2020. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_CT2_(micromol/kg) Attribute_Definition: A numeric value for the second total dissolved inorganic carbon, CT2, measured in micromoles per kilogram of seawater, that is poisoned with HgCl2 in a series of replicate measurements. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3083.7 Range_Domain_Maximum: 3100.2 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_HgCl2_CT2 Attribute_Definition: A numeric value that indicates the quality of the reported total dissolved inorganic carbon data, CT2, poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_CT3_(micromole/kg) Attribute_Definition: A numeric value for the third total dissolved inorganic carbon, CT3, measured in micromoles per kilogram of seawater, that is poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3096.8 Range_Domain_Maximum: 3096.8 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_HgCl2_CT3 Attribute_Definition: A numeric value that indicates the quality of the reported total dissolved inorganic carbon data, CT3, poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_AT1_(micromol/kg) Attribute_Definition: A numeric value for the first total alkalinity, AT1, measured in micromoles per kilogram of seawater, that is poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2872.6 Range_Domain_Maximum: 2901.3 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_HgCl2_AT1 Attribute_Definition: A numeric value that indicates the quality of the reported total alkalinity data, AT1, poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_AT2_(micromol/kg) Attribute_Definition: A numeric value for the second total alkalinity, AT2, measured in micromoles per kilogram of seawater that is poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2870.2 Range_Domain_Maximum: 2899.4 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_HgCl2_AT2 Attribute_Definition: A numeric value that indicates the quality of the reported total alkalinity data, AT2, poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: HgCl2_AT3_(micromol/kg) Attribute_Definition: A numeric value for the third total alkalinity, AT3, measured in micromoles per kilogram of seawater that is poisoned with HgCl2 in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2882.4 Range_Domain_Maximum: 2882.4 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_HgCl2_AT3 Attribute_Definition: A numeric value that indicates the quality of the reported total alkalinity data, AT3, poisoned with HgCl2. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Calculated_HgCl2_AT_AVG Attribute_Definition: A numeric value for total alkalinity calculated from corresponding average measured HgCl2 pHT and HgCl2 CT were performed in MathWorks MATLAB R2021b CO2sys.m program (van Heuven and others, 2011) using the carbonic acid stoichiometric dissociation constants, K1K2, of Waters and others (2014), the potassium sulfate (KSO4) constants of Dickson (1990), and the universal ratio of Total Boron to chlorinity, BT/S, constant of Lee and others (2010). Calculated HgCl2 AT AVG is calculated in micromoles per kilogram of seawater. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2881.7 Range_Domain_Maximum: 2903.8 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Calculated HgCl2_AT_AVG Attribute_Definition: A numeric value that indicates the quality of the reported calculated total alkalinity data from the average corresponding HgCl2 pHT and HgCl2 CT values. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_pHT1 Attribute_Definition: A numeric value for the first pH measurement using the total scale from unpoisoned water samples in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.284 Range_Domain_Maximum: 7.403 Attribute: Attribute_Label: QF_Unpoisoned_pHT1 Attribute_Definition: A numeric value that indicates the quality of unpoisoned pHT1 data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_pHT2 Attribute_Definition: A numeric value for the second pH measurement using the total scale from unpoisoned water samples in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.297 Range_Domain_Maximum: 7.399 Attribute: Attribute_Label: QF_Unpoisoned_pHT2 Attribute_Definition: A numeric value that indicates the quality of unpoisoned pHT2 data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_pHT3 Attribute_Definition: A numeric value for the third pH measurement using the total scale from unpoisoned water samples in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.310 Range_Domain_Maximum: 7.310 Attribute: Attribute_Label: QF_Unpoisoned_pHT3 Attribute_Definition: A numeric value that indicates the quality of unpoisoned pHT3 data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_CT1_(micromol/kg) Attribute_Definition: A numeric value for the first total dissolved inorganic carbon from unpoisoned water samples measured in micromoles per kilogram of seawater in a series of replicate measurements. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3082.4 Range_Domain_Maximum: 3143.1 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Unpoisoned_CT1 Attribute_Definition: A numeric value that indicates the quality of the reported unpoisoned total dissolved inorganic carbon, CT1, data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: , Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_CT2_(micromol/kg) Attribute_Definition: A numeric value for the second total dissolved inorganic carbon from unpoisoned water samples measured in micromoles per kilogram of seawater in a series of replicate measurements. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3082.4 Range_Domain_Maximum: 3137.7 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Unpoisoned_CT2 Attribute_Definition: A numeric value that indicates the quality of the reported unpoisoned total dissolved inorganic carbon, CT2, data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_CT3_(micromol/kg) Attribute_Definition: A numeric value for the third total dissolved inorganic carbon from unpoisoned water samples measured in micromoles per kilogram of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3123.3 Range_Domain_Maximum: 3123.3 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Unpoisoned_CT3 Attribute_Definition: A numeric value that indicates the quality of the reported unpoisoned total dissolved inorganic carbon, CT3, data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_AT1_(micromol/kg) Attribute_Definition: A numeric value for the first total alkalinity from unpoisoned water samples measured in micromoles per kilogram of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2913.3 Range_Domain_Maximum: 2928.4 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Unpoisoned_AT1 Attribute_Definition: A numeric value that indicates the quality of the reported unpoisoned total alkalinity, AT1, data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_AT2_(micromol/kg) Attribute_Definition: A numeric value for the second total alkalinity from unpoisoned water samples measured in micromoles per kilogram of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2915.2 Range_Domain_Maximum: 2927.8 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Unpoisoned_AT2 Attribute_Definition: A numeric value that indicates the quality of the reported unpoisoned total alkalinity, AT2, data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Unpoisoned_AT3_(micromol/kg) Attribute_Definition: A numeric value for the third total alkalinity from unpoisoned water samples measured in micromoles per kilogram of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2924.6 Range_Domain_Maximum: 2924.6 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Unpoisoned_AT3 Attribute_Definition: A numeric value that indicates the quality of the reported unpoisoned total alkalinity, AT3, data. Attribute_Definition_Source: Sun, 2010. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 9 Enumerated_Domain_Value_Definition: Flag 9 = The value of the element is missing. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Attribute: Attribute_Label: Calculated_Unpoisoned_AT_AVG Attribute_Definition: A numeric value for total alkalinity calculated from corresponding average measured variables, "Unpoisoned pHT" and "Unpoisoned CT". Calculations were performed in CO2sys.m (van Heuven and others, 2011) using the K1K2 constants of Waters and others (2014), the KSO4 constants of Dickson (1990), and the BT/S constant of Lee and others (2010). Calculated Unpoisoned AT AVG is calculated in micromoles per kilogram of seawater. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2915.1 Range_Domain_Maximum: 2964.4 Attribute_Units_of_Measure: micromol/kg Attribute: Attribute_Label: QF_Calculated_Unpoisoned_AT_AVG Attribute_Definition: A numeric value that indicates the quality of the reported calculated total alkalinity data from the average corresponding ìUnpoisoned pHTî and ìUnpoisoned CTî values. Attribute_Definition_Source: UNESCO IOC Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Flag 1 = QC has been performed and element appears to be correct. Enumerated_Domain_Value_Definition_Source: UNESCO IOC Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Christopher S. Moore Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SC Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: 727-502-8106 Contact_Electronic_Mail_Address: csmoore@usgs.gov Distribution_Liability: Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text, Microsoft Excel format Format_Version_Number: None Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P9J9IYFD/data/CO2-System_Measurements_in_Hillsborough River_Florida.zip Fees: None Metadata_Reference_Information: Metadata_Date: 20230112 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Christopher S. Moore Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SC Contact_Position: Oceanographer Trainee Contact_Address: Address_Type: mailing and physical Address: 600 4Th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: 727-502-8106 Contact_Electronic_Mail_Address: csmoore@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998