Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: U.S. Geological Survey
        Publication_Date: 200506
        Title: Ground-Water Climate Response Network
        Publication_Information:
          Publication_Place: Reston, VA
          Publisher: National Atlas of the United States
        Online_Linkage: <http://nationalatlas.gov/atlasftp.html>

    Description:
      Abstract:
        This map layer shows the locations of wells maintained by the U.S.
        Geological Survey (USGS) that are used to monitor the effects of droughts
        and other climate variability on ground-water levels.  The Ground-Water
        Climate Response Network consists of a national network of about 140 wells
        monitored as part of the Ground-Water Resources Program.  It is
        supplemented by more than 200 wells monitored as part of the Cooperative
        Water Program that meet the same network criteria, which are: open to a
        single, known hydrogeologic unit; known well construction that allows good
        water-level measurements; located in unconfined aquifers or near-surface
        confined aquifers that respond to climatic fluctuations; minimally
        affected by pumpage and likely to remain so; essentially unaffected by
        irrigation, canals, and other potential sources of artificial recharge;
        long-term accessibility; and well has never gone dry (not susceptible to
        going dry).

      Purpose:
        These data are intended for geographic display and analysis at the
        national level, and for large regional areas.  The data should be
        displayed and analyzed at scales appropriate for 1:2,000,000-scale data.
        No responsibility is assumed by the National Atlas of the United States
        or the U.S. Geological Survey in the use of these data.

      Supplemental_Information:
        This map layer represents a 'snapshot' of ground-water levels on a
        specific date.  Current ground-water level information, updated on a daily
        basis, is available from the Ground-Water Climate Response Network home
        page at <http://groundwaterwatch.usgs.gov/>.  More than 200 of the network
        wells are equipped with telemetry that transmits a reading of water level
        to an office by satellite or telephone.  The data typically are updated
        every 4 hours.

    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 20050301
      Currentness_Reference: Ground condition

    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: As needed

    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -155
        East_Bounding_Coordinate: -66
        North_Bounding_Coordinate: 65
        South_Bounding_Coordinate: 17
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: Environment
        Theme_Keyword: Geoscientific information

      Theme:
        Theme_Keyword_Thesaurus: None
        Theme_Keyword: Ground-water climate response network
        Theme_Keyword: Ground water
        Theme_Keyword: Groundwater
        Theme_Keyword: Ground-water
        Theme_Keyword: Wells
        Theme_Keyword: Drought
        Theme_Keyword: Water
        Theme_Keyword: Climate
      Place:
        Place_Keyword_Thesaurus:
          U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of
          Special Sovereignty, and Their Principal Administrative Divisions
          (Federal Information Processing Standard 10-4): Washington, DC,
          National Institute of Standards and Technology.
        Place_Keyword: United States
      Place:
        Place_Keyword_Thesaurus: None
        Place_Keyword: USA
      Place:
        Place_Keyword_Thesaurus:
          U.S. Department of Commerce, 1987, Codes for the Identification of the
          States, the District of Columbia and the Outlying Areas of The United
          States, and Associated Areas (Federal Processing Standard 5-2):
          Washington, DC, National Institute of Standards and Technology.
        Place_Keyword: Alabama
        Place_Keyword: Alaska
        Place_Keyword: Arizona
        Place_Keyword: Arkansas
        Place_Keyword: California
        Place_Keyword: Colorado
        Place_Keyword: Connecticut
        Place_Keyword: Delaware
        Place_Keyword: District of Columbia
        Place_Keyword: Florida
        Place_Keyword: Georgia
        Place_Keyword: Hawaii
        Place_Keyword: Idaho
        Place_Keyword: Illinois
        Place_Keyword: Indiana
        Place_Keyword: Iowa
        Place_Keyword: Kansas
        Place_Keyword: Kentucky
        Place_Keyword: Louisiana
        Place_Keyword: Maine
        Place_Keyword: Maryland
        Place_Keyword: Massachusetts
        Place_Keyword: Michigan
        Place_Keyword: Minnesota
        Place_Keyword: Mississippi
        Place_Keyword: Missouri
        Place_Keyword: Montana
        Place_Keyword: Nebraska
        Place_Keyword: Nevada
        Place_Keyword: New Hampshire
        Place_Keyword: New Jersey
        Place_Keyword: New Mexico
        Place_Keyword: New York
        Place_Keyword: North Carolina
        Place_Keyword: North Dakota
        Place_Keyword: Ohio
        Place_Keyword: Oklahoma
        Place_Keyword: Oregon
        Place_Keyword: Pennsylvania
        Place_Keyword: Rhode Island
        Place_Keyword: South Carolina
        Place_Keyword: South Dakota
        Place_Keyword: Tennessee
        Place_Keyword: Texas
        Place_Keyword: Utah
        Place_Keyword: Vermont
        Place_Keyword: Virginia
        Place_Keyword: Washington
        Place_Keyword: West Virginia
        Place_Keyword: Wisconsin
        Place_Keyword: Wyoming
        Place_Keyword: Puerto Rico
        Place_Keyword: Virgin Islands
        Place_Keyword: Virgin Islands of the United States

    Access_Constraints: None
    Use_Constraints:
      None.  Acknowledgment of the National Atlas of the United States of America
      and (or) the U.S. Geological Survey would be appreciated in products derived
      from these data.

    Point_of_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Linda Geiger
          Contact_Organization: U.S. Geological Survey
        Contact_Address:
          Address_Type: Mailing address
          Address: MS 411 National Center
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
          Country: USA
        Contact_Voice_Telephone: 703-648-5011
        Contact_Facsimile_Telephone: 703-648-6693
        Contact_Electronic_Mail_Address: lgeiger@usgs.gov

    Data_Set_Credit:
      The following U.S. Geological Survey scientists contributed to this
      map layer: Xiaodong Jian, George Karavitis.

  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report:
        Site information is checked yearly.  Latitude and longitude values may not
        be verified.
    Logical_Consistency_Report: No tests for logical consistency were performed on this data set.
    Completeness_Report:
      This map layer contains the locations of the 331 wells that are currently in
      the ground-water climate response network.  New sites are added as
      requested.
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: U.S. Geological Survey
            Publication_Date: 20050301
            Title: Ground-Water Wells
            Publication_Information:
              Publication_Place: Reston, VA
              Publisher: U.S. Geological Survey
            Online_Linkage: <http://groundwaterwatch.usgs.gov/>
        Type_of_Source_Media: Electronic mail
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 20050301
          Source_Currentness_Reference: Ground condition
        Source_Citation_Abbreviation: GWW
        Source_Contribution: Spatial and attribute information.

      Process_Step:
        Process_Description:
          A shapefile containing the ground-water wells information was received
          and renamed.  Unnecessary attribute fields were deleted.
        Source_Used_Citation_Abbreviation: GWW
        Process_Date: 200503

  Spatial_Data_Organization_Information:
    Indirect_Spatial_Reference:
      U.S. Department of Commerce, 1987, Codes for the Identification of the
      States, the District of Columbia and the Outlying Areas of The United
      States, and Associated Areas (Federal Information Processing Standard 5-2):
      Washington, DC, National Institute of Standards and Technology.

    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: 331

  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Latitude_Resolution: 0.000278
        Longitude_Resolution: 0.000278
        Geographic_Coordinate_Units: Decimal degrees
      Geodetic_Model:
        Horizontal_Datum_Name: North American Datum of 1983
        Ellipsoid_Name: GRS1980
        Semi-major_Axis: 6378137.0
        Denominator_of_Flattening_Ratio: 298.257222

  Entity_and_Attribute_Information:
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label:
          Wells in the Ground-Water Climate Response Network (described by
          gwwst0x020.dbf)
        Entity_Type_Definition:
          Ground-water wells within the United States that are used for monitoring
          climate conditions.
        Entity_Type_Definition_Source: National Atlas of the United States
      Attribute:
        Attribute_Label: Shape
        Attribute_Definition: The representation of the entity in the data.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Point
            Enumerated_Domain_Value_Definition: 0-dimensional element
            Enumerated_Domain_Value_Definition_Source: ESRI GIS software
      Attribute:
        Attribute_Label: Gwwst0x020
        Attribute_Definition: Internal feature number.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 1
            Range_Domain_Maximum: 331
      Attribute:
        Attribute_Label: Staid
        Attribute_Definition: Ground-water well identification number.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 175947066130601
            Range_Domain_Maximum: 645434147385101
      Attribute:
        Attribute_Label: St
        Attribute_Definition: The State in which the well is located.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Codeset_Domain:
            Codeset_Name:
              Codes for the Identification of the States, the District of
              Columbia and the Outlying Areas of the United States, and
              Associated Areas, FIPS 5-2, 1987.
            Codeset_Source:
              U.S. Department of Commerce, National Institute of Standards and
              Technology
      Attribute:
        Attribute_Label: Latdd
        Attribute_Definition: The latitude of the well, in decimal degrees.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 17.996
            Range_Domain_Maximum: 64.909
      Attribute:
        Attribute_Label: Longdd
        Attribute_Definition: The longitude of the well, in decimal degrees.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -155.896
            Range_Domain_Maximum: -66.216
      Attribute:
        Attribute_Label: Latdms
        Attribute_Definition: The latitude of the well, in degrees, minutes, and seconds.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 175946
            Range_Domain_Maximum: 645434
      Attribute:
        Attribute_Label: Longdms
        Attribute_Definition:
          The longitude of the well, in degrees, minutes, and seconds.  All values
          represent West longitude.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 661259
            Range_Domain_Maximum: 1555344
      Attribute:
        Attribute_Label: Symbol
        Attribute_Definition: An indication of how frequently data are collected from the well.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: 1
            Enumerated_Domain_Value_Definition:
              Data are collected continuously and values are transmitted via
              satellite on a quasi-real-time basis, every four hours, then
              processed and stored in the USGS National Water Information System.
            Enumerated_Domain_Value_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: 2
            Enumerated_Domain_Value_Definition:
              Data are collected on a continuous basis using onsite
              instrumentation.  These data are downloaded to a laptop or over a
              phone line at varying frequencies, but, generally about every 6-8
              weeks, processed and stored in the USGS National Water Information
              System.
            Enumerated_Domain_Value_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: 3
            Enumerated_Domain_Value_Definition:
              Data are manually collected at varying intervals, processed and
              stored in the USGS National Water Information System.
            Enumerated_Domain_Value_Definition_Source: National Atlas of the United States
      Attribute:
        Attribute_Label: Url
        Attribute_Definition: World Wide Web address for the individual well.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Unrepresentable_Domain: There is no predefined set of valid URLs.

  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Earth Science Information Center, U.S. Geological Survey
        Contact_Address:
          Address_Type: Mailing address
          Address: 507 National Center
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
        Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747)
        Contact_Voice_Telephone: 703-648-5920
        Contact_Instructions:
          In addition to the address above there are other ESIC offices throughout
          the country.  A full list of these offices is at
          <http://geography.usgs.gov/esic/esic_index.html>.

    Distribution_Liability:
      Although these data have been processed successfully on a computer system at
      the U.S. Geological Survey, no warranty expressed or implied is made by the
      U.S. Geological Survey regarding the utility of the data on any other
      system, nor shall the act of distribution constitute any such warranty.  No
      responsibility is assumed by the U.S. Geological Survey in the use of these
      data.

    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: ESRI Shapefile
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html>
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: SDTS
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html>
      Fees: There is no charge for the map layer.

  Metadata_Reference_Information:
    Metadata_Date: 20050413
    Metadata_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Gita Urban-Mathieux
          Contact_Organization: National Atlas of the United States
        Contact_Address:
          Address_Type: Mailing address
          Address: 12201 Sunrise Valley Dr
          Address: MS 561
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
        Contact_Voice_Telephone: 703-648-5175
        Contact_Electronic_Mail_Address: atlasmail@usgs.gov
    Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
    Metadata_Security_Information:
      Metadata_Security_Classification_System: None
      Metadata_Security_Classification: Unclassified
      Metadata_Security_Handling_Description: None