Discrete Carbonate System Parameter Measurements in Tampa Bay, Florida, USA

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Frequently anticipated questions:

What does this data set describe?

Title:
Discrete Carbonate System Parameter Measurements in Tampa Bay, Florida, USA
Abstract:
This dataset contains carbonate system data collected by scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center to investigate the effects of carbon cycling, coastal and ocean acidification on the Tampa Bay estuary located in west central Florida. Discrete seawater samples were collected along spatial transects at one to four hour intervals over 24-hour time periods. Water samples were analyzed at the USGS Carbon Analytical Laboratory in St. Petersburg Florida. This data set contains time series measurements of carbonate system parameters including: water temperature (Celsius, C), salinity, dissolved oxygen (milligrams/L), total alkalinity (TA, micromoles/kg), dissolved inorganic carbon (DIC, micromoles/kg), pHT (pH on the total scale), nitrate + nitrite (NO3+NO2, micromols/L), nitrite (NO2, micromols/L), silicate (SIL, micromols/L), ammonium (NH4, micromols/L) and phosphate (PO4, micromols/L).
  1. How might this data set be cited?
    Yates, Kimberly, Moore, Christopher, and Goldstein, Nathan, 20171004, Discrete Carbonate System Parameter Measurements in Tampa Bay, Florida, USA: U.S. Geological Survey Data Release doi:10.5066/F7Q23XSF, U. S. Geological Survey, St. Petersburg, FL.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -82.6937
    East_Bounding_Coordinate: -82.55393
    North_Bounding_Coordinate: 27.96125
    South_Bounding_Coordinate: 27.63571
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: May-2015
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Tabular Digital Data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set.
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?
    Tampa-Bay-Discrete-Data
    Time series measurements from discrete samples along spatial transects in Tampa Bay, FL, in May 2015 and January 2016. Spreadsheet contains: site description, latitude, longitude, datetag, timetag, water temperature, salinity, pH, dissolved oxygen, total alkalinity, dissolved inorganic carbon, nutrients, weather, tide, wind speed, wind direction, other notes (Source: USGS)
    Site Description
    Description of the physical location and attributes of the location where the measurements were collected. (Source: USGS) The name of the geographic location and a brief description of the seafloor characteristics at the sampling location.
    Latitude
    Latitude coordinates in decimal degrees, measured in the World Geodetic System of 1984. (Source: USGS)
    Range of values
    Minimum:27.63571
    Maximum:27.96152
    Units:Decimal degrees
    Longitude
    Longitude coordinates in decimal degrees, measured in the World Geodetic System of 1984. (Source: USGS)
    Range of values
    Minimum:-82.6937
    Maximum:-82.55393
    DATETAG
    A numeric identifier for calendar date, showing when each sample was collected. (Source: USGS)
    Range of values
    Minimum:5/13/15
    Maximum:1/21/16
    Units:Units correspond to month, day and year in the format MM/DD/YY
    TIMETAG
    Timestamp showing the time of day each sample was collected. (Source: USGS)
    Range of values
    Minimum:00:00:00
    Maximum:23:59:59
    Units:Hours, minutes, seconds in the format HH:MM:SS
    T(W) (C)
    Water temperature, measured in degrees Celsius. (Source: USGS)
    Range of values
    Minimum:13.4
    Maximum:39.4
    QF_T(W)
    A numeric value that indicates the quality of the reported temperature data. (Source: NOAA National Centers for Environmental Information (NCEI) https://www.nodc.noaa.gov/GTSPP/document/codetbls/gtsppcodes/gtspp_qual.html)
    ValueDefinition
    1Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    SALINITY
    A numeric value for salinity. (Source: USGS)
    Range of values
    Minimum:22.25
    Maximum:34.15
    QF_SALINITY
    A numeric value that indicates the quality of the reported salinity data. (Source: NOAA NCEI)
    ValueDefinition
    1, 3Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    pHT
    A numeric value for pH using the total scale. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:7.641
    Maximum:8.625
    QF_pHT
    A numeric value that indicates the quality of pHT data reported. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    OXYGEN (mg/L)
    A numeric identifier for the concentration of dissolved oxygen measured in a liter of seawater. Note: Dissolved oxygen data reported for May 2015 was calculated using an Excel Macro provided by an approved YSI distributor that was then cross validated using USGS software. (Source: USGS)
    Range of values
    Minimum:1.52
    Maximum:14.308
    Units:mg/L
    QF_OXYGEN
    A numeric value that indicates the quality of the reported oxygen data. (Source: NOAA NCEI)
    ValueDefinition
    1, 5Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    TA (micromol/kg)
    A numeric identifier for the total alkalinity measured in micromoles per kilogram of seawater. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:2234.7
    Maximum:2575.9
    Units:micromol/kg
    QF_TA
    A numeric value that indicates the quality of the reported total alkalinity data. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    DIC (micromol/kg)
    A numeric identifier for dissolved inorganic carbon measured in micromoles per kilogram of seawater. (Source: USGS)
    Range of values
    Minimum:1821.1
    Maximum:2435.4
    Units:micromol/kg
    QF_DIC
    A numeric value that indicates the quality of the reported dissolved inorganic carbon data. (Source: NOAA NCEI)
    ValueDefinition
    1Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    [NO3 + NO2] (micromol/L)
    A numeric identifier for the concentration of nitrate + nitrite measured in micromoles per liter of seawater. Missing data points are marked in the data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:0.0
    Maximum:0.745
    Units:micromol/L
    QF_[NO3+NO2]
    A numeric value that indicates the quality of the reported nitrate + nitrite data. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    [NO2] (micromol/L)
    A numeric identifier for nitrite concentration measured in micromoles per liter of seawater. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:0.0
    Maximum:0.092
    Units:micromol/L
    QF_[NO2]
    A numeric value that indicates the quality of the reported nitrite data. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    [SIL] (micromol/L)
    A numeric identifier for silicate concentration measured in micromoles per liter of seawater. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:0.0
    Maximum:18.177
    Units:micromol/L
    QF_[SIL]
    A numeric value that indicates the quality of the reported silicate data. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    [NH4] (micromol/L)
    A numeric identifier for ammonium concentration measured in micromoles per liter of seawater. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:0.0
    Maximum:4.61
    Units:micromol/L
    QF_[NH4]
    A numeric value that indicates the quality of reported ammonium data. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    [PO43-] (micromol/L)
    A numeric value for phosphate concentration measured in micromoles per liter of seawater. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:0.142
    Maximum:3.242
    Units:micromol/L
    QF_[PO43-)
    A numeric value that indicates the quality of the reported phosphate data. (Source: NOAA NCEI)
    ValueDefinition
    1, 9Flag 0= No quality control (QC) performed, Flag 1 = QC has been performed and element appears to be correct, Flag 2 = QC has been performed and element appears to be probably good with other elements, Flag 3 = QC has been performed and element appears to be probably bad, Flag 4 = QC has been performed and element appears to be bad, Flag 5 = the value has been modified as a result of QC, Flag 9 = The value of the element is missing.
    Weather
    The weather conditions at the location where the sample was taken. Missing data points are marked in data columns with the value -999. (Source: USGS) This field describes the general weather conditions at the location where the data were collected.
    Tide (m)
    A numeric value representing tide levels when sample was collected, measured in meters relative to mean lower low water. Missing data points are marked in data columns with -999. (Source: NOAA https://tidesandcurrents.noaa.gov/)
    Range of values
    Minimum:-0.22
    Maximum:0.76
    Units:m
    Wind (m/s)
    A numeric value for the speed of the wind at the time of sample collection, measured in meters per second. (Source: USGS)
    Range of values
    Minimum:0
    Maximum:7.4
    Units:m/s
    Wind Direction
    A numeric value for the heading at which the wind was moving. Missing data points are marked in data columns with the value -999. (Source: USGS)
    Range of values
    Minimum:0
    Maximum:344
    Units:degrees
    Other Notes
    This field contains additional observed environmental conditions at time of sample collection. (Source: USGS) This field contains additional notes about the conditions of the environment that may influence sample results.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Kimberly Yates
    • Christopher Moore
    • Nathan Goldstein
  2. Who also contributed to the data set?
    Acknowledgment of the USGS St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected. Sharing of new data layers developed directly from these data would also be appreciated by the USGS staff.
  3. To whom should users address questions about the data?
    Kimberly Yates
    United States Geological Survey
    600 4th Street South
    St. Petersburg, FL
    USA

    7275028059 (voice)
    kyates@usgs.gov

Why was the data set created?

This dataset was acquired to assist USGS staff with the quantification, analysis and interpretation of geochemical ​time series data that will ultimately be used in assessments ​and ​research ​of or related to​ carbon cycling, coastal and ocean acidification.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 2015 (process 1 of 2)
    Detailed information on sampling procedures and analyses is provided in Yates, K.K, Moyer, R.P., Moore, C., Tomasko, D., Smiley, N., Torres-Garcia, L., Powell, C.E., Chappel, A.R., Bociu, I. 2017. Ocean acidification buffering effects of seagrass in Tampa Bay. In, Burke, M. (ed.), Proceedings: The 6th Tampa Bay Area Scientific Information Symposium, BASIS 6, pp. 273-284. http://www.tbeptech.org/data/tbep-basis/213-6th-bay-area-scientific-information-symposium-proceedings. Person who carried out this activity:
    Kimberly Yates
    USGS
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8059 (voice)
    kyates@usgs.gov
    Date: 13-Oct-2020 (process 2 of 2)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    Accuracy of TA and DIC measurements is determined by measuring certified reference materials (CRMs) supplied by SCRIPPS Institute of Oceanography (Andrew Dickson) and comparing measured to known values. CRM analyses are 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 is determined by repeat analysis of samples and CRMs. Spectrophotometric pH measurements require no calibration. Precision of pH analysis is determined by repeat measurements of replicate samples. Nutrient analyses were performed by University of Tampa (R. Masserini). YSI meters used to collect ancillary data were calibrated daily. Missing values are denoted with an entry of -999.
  2. How accurate are the geographic locations?
    Accuracy was checked against global positioning system (GPS) values provided by the manufacture, Garmin GPSMAP64st and Garmin GPSmpa60CSx FPSMAP60 accuracy < 10 meters
  3. How accurate are the heights or depths?
    Accuracy was checked against GPS values provided by the manufacture, Garmin GPSMAP64st and Garmin GPSmpa60CSx FPSMAP60 accuracy <10 meters
  4. Where are the gaps in the data? What is missing?
    Data set 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.
  5. How consistent are the relationships among the observations, including topology?
    The discrete data were generated using certified reference materials to correct measured values and validate the quality of the data reported. Missing data were the result of either technological failure, or lack of data collection due to sampling design or inclement weather. Quality flags indicating the status of individual data points are 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.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: none
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originators of the data in future products or derivative research. Measured TA in this dataset may not be suitable to use for calculating carbonate system parameters, due to the potential influence of organic alkalinity on these values.
  1. Who distributes the data set? (Distributor 1 of 1)
    Kimberly Yates
    United States Geological Survey
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8059 (voice)
    kyates@usgs.gov Resource_Desciption: Tampa-Bay-Discrete-Data-May-2015.csv, Tampa-Bay-Discrete-Data-Jan-2016.csv
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2020
Metadata author:
Kimberly Yates
United States Geological Survey
Research Oceanographer
600 4th Street South
St. Petersburg, FL
USA

727-502-8059 (voice)
kyates@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/Tampa-Bay-Discrete-metadata.faq.html>
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