Discrete Carbonate System Parameter Measurements in Middle Tampa Bay, Florida and the Eastern Gulf of Mexico, USA

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Frequently anticipated questions:

What does this data set describe?

Title:
Discrete Carbonate System Parameter Measurements in Middle Tampa Bay, Florida and the Eastern Gulf of Mexico, 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 and eastern Gulf of Mexico. Discrete seawater samples were collected periodically (every few weeks to months) at repeat monitoring locations. Water samples were analyzed by the USGS Carbon Analytical Laboratory in St. Petersburg Florida. This dataset 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, micromoles/L), nitrite (NO2, micromoles/L), silicate (SIL, micromoles/L), ammonium (NH4, micromoles/L) and phosphate (PO4, micromoles/L).
  1. How might this data set be cited?
    Yates, Kimberly K., Moore, Christopher S., and Lemon, Mitchell K., 20210610, Discrete Carbonate System Parameter Measurements in Middle Tampa Bay, Florida and the Eastern Gulf of Mexico, USA:.

    This is part of the following larger work.

    Yates, Kimberly K., Moore, Christopher S., and Lemon, Mitchell K., 20210610, Discrete Carbonate System Parameter Measurements in Middle Tampa Bay, Florida and the Eastern Gulf of Mexico, USA: U.S. Geological Survey Data Release doi:10.5066/P9HS7ZV0, U. S. Geological Survey - St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -83.74239
    East_Bounding_Coordinate: -82.59470
    North_Bounding_Coordinate: 27.66168
    South_Bounding_Coordinate: 27.49953
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 05-Jan-2018
    Ending_Date: 19-Mar-2020
    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?
    Middle-Tampa-Bay-Gulf-of-Mexico-Discrete-Data-01052018-to-03192020.csv, Middle-Tampa-Bay-Gulf-of-Mexico-Discrete-Data-01052018-to-03192020.xlsx
    Discrete water sample measurements from monitoring locations in Tampa Bay, Florida and the eastern Gulf of Mexico, U.S. from January 2018 to March 2020. Data are provided as comma separated values (CSV) and Microsoft Excel (xlsx) files, that contain the following information: coordinates, date, time, water temperature, salinity, pH, total alkalinity, dissolved inorganic carbon, nitrate plus nitrite, nitrite, silicate, ammonium, phosphate, and data quality flags for each parameter. (Source: USGS)
    Site Description
    Description of the physical location where the measurements were collected. (Source: USGS) The name of the geographic location at the sampling location.
    Latitude
    Latitude coordinates in decimal degrees, measured in the World Geodetic System of 1984. (Source: USGS)
    Range of values
    Minimum:27.49953
    Maximum:27.66168
    Units:Decimal degrees
    Longitude
    Longitude coordinates in decimal degrees, measured in the World Geodetic System of 1984. (Source: USGS)
    Range of values
    Minimum:-83.74239
    Maximum:-82.59470
    DATETAG
    A numeric identifier for calendar date, showing when each sample was collected. (Source: USGS)
    Range of values
    Minimum:01/05/18
    Maximum:03/19/20
    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:06:30:00
    Maximum:16:30:00
    Units:Hours, minutes, and seconds in the format HH:MM:SS
    T(W) (C)
    Water temperature, measured in degrees Celsius. (Source: USGS)
    Range of values
    Minimum:13.18
    Maximum:30.85
    Units:Celsius (C)
    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.ncei.noaa.gov/sites/default/files/2020-11/GTSPP%20Real-Time%20Quality%20Control%20Manual.pdf)
    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:26.5
    Maximum:36.4
    QF_SALINITY
    A numeric value that indicates the quality of the reported salinity 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.
    pHT1
    A numeric value for pH using the total scale in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:7.617
    Maximum:8.120
    QF_pHT1
    A numeric value that indicates the quality of pHT data. (Source: NOAA NCEI)
    ValueDefinition
    1, 4, 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.
    pHT2
    A numeric value for the second pH measurement using the total scale in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:7.598
    Maximum:8.169
    QF_pHT2
    A numeric value that indicates the quality of pHT2 data. (Source: NOAA NCEI)
    ValueDefinition
    1, 4, 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.
    pHT3
    A numeric value for the third pH measurement using the total scale in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:7.549
    Maximum:8.110
    QF_pHT3
    A numeric value that indicates the quality of pHT3 data. (Source: NOAA NCEI)
    ValueDefinition
    1, 4, 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.
    TA1 (micromol/kg)
    A numeric identifier for the total alkalinity 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. (Source: USGS)
    Range of values
    Minimum:2169.6
    Maximum:2516.1
    Units:micromol/kg
    QF_TA1
    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.
    TA2 (micromol/kg)
    A numeric identifier for the second total alkalinity 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. (Source: USGS)
    Range of values
    Minimum:2276.5
    Maximum:2514.7
    Units:micromol/kg
    QF_TA2
    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.
    TA3 (micromol/kg)
    A numeric identifier for the third total alkalinity 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. (Source: USGS)
    Range of values
    Minimum:2277.7
    Maximum:2515.9
    Units:micromol/kg
    QF_TA3
    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.
    DIC1 (micromol/kg)
    A numeric identifier for dissolved inorganic carbon 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. (Source: USGS)
    Range of values
    Minimum:1971.0
    Maximum:2271.0
    Units:micromol/kg
    QF_DIC1
    A numeric value that indicates the quality of the reported dissolved inorganic carbon 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.
    DIC2 (micromol/kg)
    A numeric identifier for the second dissolved inorganic carbon 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. (Source: USGS)
    Range of values
    Minimum:2048.8
    Maximum:2275.7
    Units:micromol/kg
    QF_DIC2
    A numeric value that indicates the quality of the reported dissolved inorganic carbon 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.
    DIC3 (micromol/kg)
    A numeric identifier for the third dissolved inorganic carbon 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. (Source: USGS)
    Range of values
    Minimum:2069.8
    Maximum:2273.2
    Units:micromol/kg
    QF_DIC3
    A numeric value that indicates the quality of the reported dissolved inorganic carbon 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.
    [NO3 + NO2]1 (micromol/L)
    A numeric identifier for the concentration of nitrate + nitrite measured in micromoles per liter of seawater in a series of replicate measurements. Missing data points are marked in the data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:1.02
    Units:micromol/L
    QF_[NO3+NO2]1
    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.
    [NO3 + NO2]2 (micromol/L)
    A numeric identifier for the concentration of nitrate + nitrite measured in micromoles per liter of seawater in a series of replicate measurements. Missing data points are marked in the data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:0.80
    Units:micromol/L
    QF_[NO3+NO2]2
    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]1 (micromol/L)
    A numeric identifier for nitrite concentration measured in micromoles per liter of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:0.31
    Units:micromol/L
    QF_[NO2]1
    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.
    [NO2]2 (micromol/L)
    A numeric identifier for nitrite concentration measured in micromoles per liter of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:0.04
    Units:micromol/L
    QF_[NO2]2
    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]1 (micromol/L)
    A numeric identifier for silicate concentration measured in micromoles per liter of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:27.85
    Units:micromol/L
    QF_[SIL]1
    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.
    [SIL]2 (micromol/L)
    A numeric identifier for silicate concentration measured in micromoles per liter of seawater in a series of replicate measurements. Missing data points are marked in data columns with the value -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:8.66
    Units:micromol/L
    QF_[SIL]2
    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]1 (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 -99. (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:2.17
    Units:micromol/L
    QF_[NH4]1
    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.
    [NH4]2 (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 -99. (Source: USGS)
    Range of values
    Minimum:0.38
    Maximum:1.08
    Units:micromol/L
    QF_[NH4]2
    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.
    [PO4-]1 (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 -99. (Source: USGS)
    Range of values
    Minimum:0.60
    Maximum:3.89
    Units:micromol/L
    QF_[PO4-]1
    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.
    [PO4-]2 (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 -99. (Source: USGS)
    Range of values
    Minimum:0.67
    Maximum:1.97
    Units:micromol/L
    QF_[PO4-]2
    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.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Kimberly K. Yates
    • Christopher S. Moore
    • Mitchell K. Lemon
  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
    U.S. 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. Data were collected during USGS field activity numbers (FAN) 2018-374-FA, 2019-304-FA and 2019-308-FA.

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: 2020 (process 1 of 2)
    Water sampling procedures, analytical methods, QAQC and data quality flagging procedures are described in Yates and others (2019). Nutrient measurements were performed by Dr. Robert Masserini of the University of Tampa using methods in Gordon L.I., Jennings Jr, J.C., Ross, A.A., Krest, J.M., A Suggested Protocol For Continuous Flow Automated Analysis of Seawater Nutrients: WOCE Operation Manual, WHP Office Rept 90-1, WOCE Report 77 No 68/91, 1-52. As revised by Ross, A.A., 2000. Replicate sample bottles (duplicates or triplicates) were collected during many of the sampling periods and individual measurements for each bottle were reported. Person who carried out this activity:
    Kimberly Yates
    U.S. Geological Survey
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8059 (voice)
    kyates@usgs.gov
    Date: 2020 (process 2 of 2)
    Water samples from the Tampa Bay study site were collected from mid-water column at approximately 2.6 m water depth. Total water depth at the Tampa Bay study site was approximately 4.6 m. Water samples from the eastern Gulf of Mexico study site were collected at approximately 0.7 m water depth. Total water depth at the Gulf of Mexico study site was approximately 50 m. Person who carried out this activity:
    Kimberly Yates
    U.S. Geological Survey
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8059 (voice)
    kyates@usgs.gov
  3. What similar or related data should the user be aware of?
    Yates, Kimberly K., Moore, Christopher S., Goldstein, Nathan H., and Sherwood, Edward T., 20190326, Tampa Bay Ocean and Coastal Acidification Monitoring Quality Assurance Project Plan: U.S. Geological Survey Open-File Report 2019-1003, U.S. Geological Survey, Reston, VA.

    Online Links:

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

  1. How well have the observations been checked?
    Accuracy of total alkalinity and dissolved inorganic carbon 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 the University of Tampa (Dr. Robert Masserini). YSI meters used to collect ancillary data were calibrated daily. Missing values are denoted with an entry value of -99.
  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 (m).
  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 m.
  4. Where are the gaps in the data? What is missing?
    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.
  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 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.

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 values included 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
    U.S. Geological Survey
    600 4th Street South
    St. Petersburg, Florida
    USA

    727-502-8059 (voice)
    kyates@usgs.gov
  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: 28-May-2021
Metadata author:
Kimberly Yates
U.S. 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/Middle-Tampa-Bay-Gulf-of-Mexico-Discrete_metadata.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:18:51 2021