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Real-Time Ground Water Data

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Frequently-anticipated questions:


What does this data set describe?

Title: Real-Time Ground Water Data
Abstract:
Data include continuous 15-minute interval measurements of temperature, salinity, water ;evel (NAVD 88), and specific conductance for 7 sites.
  1. How should this data set be cited?

    Mark Zucker Jeff Woods; Eduardo Patino, 2008, Real-Time Ground Water Data.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -81
    East_Bounding_Coordinate: -80.5
    North_Bounding_Coordinate: 25.55
    South_Bounding_Coordinate: 25.2

  3. What does it look like?

    <http://sofia.usgs.gov/exchange/realtime_gw/location.html> (JPEG)
    location of sampling stations for real-time groundwater data

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 16-Mar-2002
    Ending_Date: Present
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: website

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect_Spatial_Reference: Everglades

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 1. Longitudes are given to the nearest 1. Latitude and longitude values are specified in Degrees, minutes, and decimal seconds.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum of 1988
      Altitude_Resolution: 0.01
      Altitude_Distance_Units: feet
      Altitude_Encoding_Method: Attribute values

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Data collected for each site includes gage height in feet, temperature in degrees Celsius, specific conductance in microsiemens per centimeter at 25 deg C in unfiltered water, and salinity in ppt in unfiltered water
    Entity_and_Attribute_Detail_Citation: National Water Information System (NWIS)


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Projet personnel include Christian Lopez, Shane Ploos, Barclay Shoemaker, Carrie Boudreau, and Stephen Huddleston

  3. To whom should users address questions about the data?

    Mark Zucker
    U.S. Geological Survey
    3110 SW 9th Ave.
    Ft. Lauderdale, FL 33315
    USA

    954 377-5952 (voice)
    954 377-5901 (FAX)
    mzucker@usgs.gov


Why was the data set created?

The U. S. Geological Survey (USGS), in collaboration with Everglades National Park (ENP), the U. S. Army Corps of Engineers (USACE), and the South Florida Water Management District (SFWMD) is conducting a study to measure flows into Northeastern Florida Bay. Information from the study will be used in conjunction with data form other studies to help determine the effects of changes in water deliveries to Everglades National Park on the Florida Bay ecosystem. Flow into Florida Bay is closely related to sediment transport, salinity, and chemical characteristics of the bay, which in turn, determine and interact with the biological characteristics, Additionally freshwater-inflow will be used as input to hydrodynamic models of Florida Bay, for calibration of hydrologic models of the mainland, and for water-budget determinations for south Florida - all of which are essential elements for resource management and the ecosystem restoration.


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: Not complete (process 1 of 1)
    Data collection includes continuous 15-minute reading for temperature, specific conductance, salinity and gage height. Data are telemetered to the USGS in Ft. Lauderdale, FL

    Person who carried out this activity:

    Mark Zucker
    U.S. Geological Survey
    3110 SW 9th Ave.
    Ft. Lauderdale, FL 33315
    USA

    954 377-5952 (voice)
    954 377-5901 (FAX)
    mzucker@usgs.gov

  3. What similar or related data should the user be aware of?

    Hittle, Clinton Patino, Eduardo; Zucker, Mark, 2001, Freshwater flow from estuarine creeks into northeastern Florida Bay: USGS Water-Resources Investigations Report 01-4164, U.S. Geological Survey, Reston, VA.

    Online Links:

    Hittle, Clinton D. Zucker, Mark A., 2004, Northeastern Florida Bay estuarine creek data, Water Years 1996-2000: USGS Digital Data Series DS 105, U.S. Geological Survey, Tallahassee, FL.

    Online Links:

    Woods, Jeff Zucker, Mark, 2007, Estuarine Response in Northeastern Florida Bay to Major Hurricanes in 2005: USGS Circular 1306, chapter 6, U.S. Geological Survey, Reston, VA.

    Online Links:

    This is part of the following larger work.

    Farris, G. S.; Smith, G. J.; Crane, M. P.;, 2007, Science and the Storms: The USGS Response to the Hurricanes of 2005: USGS Circular 1306, 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?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    Sites MO-198, MO-199, G-3763, G-3764, G-3776, and G-3777 have data for gage height, temperature, specific conductance, and salinity.

  5. How consistent are the relationships among the observations, including topology?

    Temperature (Deg C), specific conductance (microsiemens/cm), salinity (ppt), and water level (NAVD 88) data were collected at all sites. Data collection did not start at all sites at the same date.


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: Data is provisional and subject to revision

  1. Who distributes the data set? (Distributor 1 of 1)

    Heather S.Henkel
    U.S. Geological Survey
    600 Fourth St. South
    St. Petersburg, FL 33701
    USA

    727 803-8747 ext 3028 (voice)
    727 803-2030 (FAX)
    hhenkel@usgs.gov

  2. What's the catalog number I need to order this data set?

    Real-Time Gournd Water Data

  3. What legal disclaimers am I supposed to read?

    The data have no implied or explicit guarantees and are subject to revision

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 02-Apr-2008
Metadata author:
Heather Henkel
U.S. Geological Survey
600 Fourth Street South
St. Petersburg, FL 33701
USA

727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
sofia-metadata@usgs.gov

Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


This page is <http://sofia.usgs.gov/metadata/sflwww/real_time_gw_data.faq.html>

U.S. Department of the Interior, U.S. Geological Survey
Comments and suggestions? Contact: Heather Henkel - Webmaster
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