Identification_Information:
  Citation:
    Citation_Information:
      Originator: John Mullaney
      Publication_Date: not published
      Title: mean chloride deposition 1994-2003
      Geospatial_Data_Presentation_Form: raster digital data
      Series_Information:
        Series_Name: unpublished
      Online_Linkage: none
  Description:
    Abstract: Mean chloride deposition 1994-2003. Gridded data from the National Acid Deposition Network were averaged. Units are in tons/square mile.
    Purpose: This layer was developed for Report SIR 2009-5086 to help identify chloride contributions from atmospheric deposition to concentrations in groudnwater and surface water. This layer was used in the report as figure 3. Mullaney, J.R., Lorenz, D.L., Arntson, A.D., 2009, Chloride in groundwater and surface water in areas underlain by the glacial aquifer system, northern United States: U.S. Geological Survey Scientific Investigations Report 2009-5086, 41 p. http://pubs.usgs.gov/sir/2009/5086/
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2003
        Time_of_Day: unknown
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -132.468053
      East_Bounding_Coordinate: -60.789972
      North_Bounding_Coordinate: 54.894699
      South_Bounding_Coordinate: 19.507606
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: none
      Theme_Keyword: chloride
    Place:
      Place_Keyword_Thesaurus: none
      Place_Keyword: Northern United States
  Access_Constraints:  for internal use only -- data has not been reviewed or published. data is provided as is and should be verified by the user
  Use_Constraints:  for internal use only -- data has not been reviewed or published. data is provided as is and should be verified by the user
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: John Mullaney
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Hydrologist
      Contact_Electronic_Mail_Address: jmullane@usgs.gov
  Data_Set_Credit: The data set was created by John Mullaey, USGS from data provided by the national atmospheric deposition program
  Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.0.1770
Data_Quality_Information:
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: National atmospheric deposition program http://nadp.sws.uiuc.edu/isopleths/grids.asp
          Publication_Date: April 2006
          Other_Citation_Details: data for 1994-2003 were downloaded. Mean value was calculated for the downloaded data. Data were downloaded April 2006
          Online_Linkage: data is provided as is and should be verified by the user
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information:
    Raster_Object_Type: Grid Cell
    Row_Count: 3573
    Column_Count: 5073
    Vertical_Count: 1
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Albers Conical Equal Area
        Albers_Conical_Equal_Area:
          Standard_Parallel: 29.500000
          Standard_Parallel: 45.500000
          Longitude_of_Central_Meridian: -96.000000
          Latitude_of_Projection_Origin: 23.000000
          False_Easting: 0.000000
          False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: row and column
        Coordinate_Representation:
          Abscissa_Resolution: 999.958619
          Ordinate_Resolution: 999.958619
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257222
Distribution_Information:
  Resource_Description: Downloadable Data
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Transfer_Size: 69.955
Metadata_Reference_Information:
  Metadata_Date: 20090901
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
        Contact_Person: John Mullaney
      Contact_Address: jmullane@usgs.gov
        Address_Type: email

  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata PIn the metadata for exp_clrofile
