Identification_Information:
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Danko Taboroi
        Contact_Organization: Island Research & Education Initiative (IREI)
      Contact_Position: Director
      Contact_Electronic_Mail_Address: taborosi@islandresearch.org
  Citation:
    Citation_Information:
      Originator: Island Research & Education Initiative
      Publication_Date: 2013
      Title: Aquifer recharge zones
      Online_Linkage: www.hydroguam.net
  Keywords:
    Theme:
      Theme_Keyword: recharge
      Theme_Keyword: aquifer
      Theme_Keyword: Northern Guam Lens Aquifer
      Theme_Keyword: NGLA
    Place:
      Place_Keyword: Guam
      Place_Keyword: U.S. Territory
      Place_Keyword: Mariana Islands
      Place_Keyword: Micronesia
      Place_Keyword: Northwest Pacific
      Place_Keyword: Western Pacific
      Place_Keyword: Pacific Islands
  Description:
    Abstract: The surface of the aquifer is considered to provide autogenic recharge (because limestone units of the aquifer itself receive direct rainfall and convey it downward). Adjacent non-limestone surfaces provide allogenic recharge (because they capture rainwater and conduct it to lower-lying limestone areas via surface drainage networks guided by land surface topography). The boundaries are based on information from USGS Geologic Map, 2007 LiDAR data (JALBTCX), and watershed boundaries by Natural Resources Conservation Service (NRCS).
    Purpose: This dataset shows the extent of areas that capture rainwater that goes to recharge the Northern Guam Lens Aquifer (NGLA). This GIS dataset was created for the purpose of the Digital Atlas of Northern Guam (http://north.hydroguam.net).
    Supplemental_Information: The surface of the aquifer is considered to provide autogenic recharge (because limestone units of the aquifer itself receive direct rainfall and convey it downward). Adjacent non-limestone surfaces provide allogenic recharge (because they capture rainwater and conduct it to lower-lying limestone areas via surface drainage networks guided by land surface topography). The boundaries are based on information from USGS Geologic Map, 2007 LiDAR data (JALBTCX), and watershed boundaries by Natural Resources Conservation Service (NRCS).
  Use_Constraints: Data set is for planning purpose only and not for use in litigation. The Island Research & Education Initiative (IREI) cannot assume liability for any damages or misrepresentations caused by any inaccuracies in the data or as a result of the data to be in a particular system.
  Data_Set_Credit: Danko Taboroi and Maria Kottermair
Data_Quality_Information:
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Title: USGS Geologic Map of Guam
          Publication_Date: 2008
          Originator: Siegrist, H.G. and Reagan, M.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Title: LiDAR-derived hillshade
          Originator: JALBTX
          Publication_Date: 2007
          Other_Citation_Details: The data was collected by JALBTX for the Government of Guam
    Source_Information:
      Source_Citation:
        Citation_Information:
          Title: Watershed boundaries
          Originator: Natural Resources Conservation Service (NRCS)
    Process_Step:
      Process_Description: A shapefile of the outline of Guam was used as a starting point. The file was then 'cut' to create the aquifer recharge zones which are based on geologic and topographic information. Whenever possible boundaries from the source layers were traced.
      Process_Date: 2013
      Process_Contact:
        Contact_Information:
          Contact_Organization_Primary:
            Contact_Organization: Island Research & Education Initiative (IREI)
          Contact_Electronic_Mail_Address: irei@islandresearch.org
  Attribute_Accuracy:
    Attribute_Accuracy_Report: An attribute accuracy assessment had not been conducted.
  Logical_Consistency_Report: The data is beleive to be logically consistent although no test were performed.
  Completeness_Report: This data set is considered complete.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Presently, there are no plans to conduct an accuracy assessment. Updates may be provided at a later date as more ground-truthing information becomes available.
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: recharge_zones
    Attribute:
      Attribute_Label: OBJECTID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: Esri
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: Esri
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: Type
    Attribute:
      Attribute_Label: Area_ha
    Attribute:
      Attribute_Label: Area_mi
    Attribute:
      Attribute_Label: Area_ac
    Attribute:
      Attribute_Label: Shape_Length
      Attribute_Definition: Length of feature in internal units.
      Attribute_Definition_Source: Esri
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape_Area
      Attribute_Definition: Area of feature in internal units squared.
      Attribute_Definition_Source: Esri
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
Metadata_Reference_Information:
  Metadata_Date: 20131012
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Contact:
    Contact_Information:
      Contact_Electronic_Mail_Address: irei@islandresearch.org
      Contact_Organization_Primary:
        Contact_Organization: Island Research & Education Initiative (IREI)
Spatial_Data_Organization_Information:
  Point_and_Vector_Object_Information:
Lineage:
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Planar_Coordinate_Information:
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: D_WGS_1984
      Ellipsoid_Name: WGS_1984
