Note: This data set was first published on the 1998 CAPS CD.
The text for this document was taken unchanged from that CD.
Metadata for PERMAFROST

Permafrost map of Alaska

Table of Contents

Identification Information
Data Quality Information
Spatial Data Organization Information
Entity and Attribute Information
Distribution Information
Metadata Reference Section

Identification_Information:

   Citation Information 
    Originator:		U.S. Geological Survey EROS Alaska Field Office
    Publication_Date:	19961210
    Title:			 Permafrost map of Alaska
    Geospatial_Data_Presentation_Format:	map
    Publication_Information
        Publication_Place:	Anchorage, Alaska
        Publisher:		U.S. Geological Survey EROS Alaska Field Office
    Online_Linkage:		http://agdcwww.wr.usgs.gov/agdc/agdc.html
    Scale_Denominator:	 	2,500,000
   Description 
      Abstract:
      This dataset consists of a georeferenced digital map and attribute data derived
      from the publication "Permafrost map of Alaska".  The map is presented at a
      scale of 1:2,500,000 and shows the correlation of physiographic province to
      presence of permafrost across the state of Alaska.
      Purpose:
      The digital data were prepared under the U.S. Geological Survey Global Change
      Program, Land Data Systems - Arctic Land Processes Studies for display and analysis of
      terrain.
      Supplemental_Information:
      Procedures_Used
      The linework was captured by hand digitizing the source map,
      Ferrians, O.J., 1965, Permafrost map of Alaska:  U.S. Geological
      Survey Miscellaneous Geologic Investigations Map I-445. Scale 1:2,500,000.
      The digital map was assembled and edited in ARC/INFO.  The source map
      projection is polyconic.  It is based on the Clarke 1866 ellipsoid with a
      central meridian of 150 W longitude.  The data were georeferenced from
      digitizer coordinates to the polyconic projection and then projected into
      an Albers Equal Area projection.  The coastline was taken from the U.S.
      Geological Survey, 1:2,000,000 scale Digital Line Graph data (U.S.
      Geological Survey, 1987).  Attributes for the permafrost map were assigned.
      Metadata documentation was completed in 1996.
      Revisions:
      This is the first digital version of the permafrost dataset.
      Other_References_Cited:
      Ferrians, O.J., 1965, Permafrost map of Alaska: U.S. Geological Survey
         Miscellaneous Geologic Investigations Map I-445. Scale 1:2,500,000.
   Time_Period_of_Content
      Range_of_Dates/Times
        Beginning_Date:	1965
        Ending_Date:	0
      Currentness_Reference:
        The creation date for the digital data is unknown.  Documentation of the
        data occurred in 1996.
   Status
      Progress:	Complete
      Maintenance_and_Update_Frequency
      Maintenance and update of the dataset will be performed as needed.
   Spatial_Domain
     Bounding_Coordinates
     West_Bounding_Coordinate:		157.4567
     East_Bounding_Coordinate:		-117.2995
     North_Bounding_Coordinate:		67.5777
     South_Bounding_Coordinate:		49.1643
   Keywords
     Theme
        Theme_Keyword_Thesaurus: None
        Theme_Keyword:  permafrost, map, Alaska
     Place
        Place_Keyword_Thesaurus: None
        Place_Keyword:  Alaska
   Access_Constraints:
	 None
   Use_Constraints:
	The U.S. Geological Survey should be acknowledged as the data source in
	products derived from these data.  The data are general in nature and should
	not be used at a scale larger than 1:2,500,000,that of the original map.  The
	use of these data is not restricted and may be interpreted by organizations,
	agencies, units of government or others; however,they are responsible for its
	appropriate application.  Digital data files are periodically updated.  Files
	are dated and users are responsible for obtaining the latest revisions of the
	data.  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
	agency regarding the utility of the data on any other system, nor shall the act
	of distribution constitute any such warranty.
   Point_of_Contact:
      Contact_Information
         Contact_Organization_Primary
             Contact_Organization:	U.S. Geological Survey EROS Alaska Field Office
             Contact Person:		
          Contact Position:
          Contact Address
             Address_Type:	mailing and physical address
             Address:		4230 University Drive
             City:		Anchorage
             State_or Province:	Alaska
             Postal_code:	99508-4664
             Country:		USA
          Contact_Voice_Telephone:	(907) 786-7020
          Contact_Facsimile_Telephone:	(907) 786-7036
          Contact_Electronic_Mail_Address:	webmaster@agdcwww.wr.usgs.gov
          Hours_of_Service:	Monday - Friday, 8-5, Alaska Standard Time
   Native_Data_Set_Environment:
      Arc/Info version 7.0.3,
       Pathname = 

Data_Quality_Information

  Attribute_Accuracy
    Attribute_Accuracy_Report:
        See Entity_Attribute_Information
    Quantitative_Attribute_Accuracy_Assessment
        Attribute_Accuracy_Value:  See Explanation
        Attribute_Accuracy_Explanation:
           Attribute accuracy is described, where present, with each
           attribute defined in the Entity and Attribute Section.
    Logical_Consistency_Report:
           Polygon and chain-node topology present.
    Completeness_Report
           A map unit is an area defined and named in terms of its physiographic character.
              Each map unit differs with respect to all others and is given a unique code indi
              its association with permafrost. The basis of the actual compositon and
              interpretation of the units is unknown.
    Positional_Accuracy
        Horizontal_Positional_Accuracy
          Horizontal_Positional_Accuracy_Report:
             The horitional positional accuracy of the province boundaries is unknown.
        Quantitative_Horizontal_Positional_Accuracy_Assessment:
            Horizontal_Positional_Accuracy_Value: unknown
            Horizontal_Positional_Accuracy_Explanation:  Resolution as reported
        Vertical_Positional_Accuracy
            Vertical_Positional_Accuracy_Report:
             The vertical positonal accuracy of the permafrost layer is unknown.
    Lineage
      Source_Information
        Source_Citation
          Citation_Information
            Originator:	Ferrians, O.J.
            Publication_Date:	1965
            Title:	Permafrost map of Alaska
            Geospatial_Data_Presentation_Form:	map
            Publication_Information
              Publication_Place:	Reston, VA
              Publisher:	U.S. Geological Survey
      Source_Scale_Denominator:	2,500,000
      Type_of_Source_Media:	Unknown
      Source_Time_Period_of_Content
        Time_Period_Information
           Single_Date/Time
              Calendar_Date:	1965
            Source_Currentness_Reference:	Publication Date
       Source_Citation_Abbreviation	
       Source_Contribution:
            The data set was derived from this source.        
    Process_Step
       Process_Description:
	Hard-copy map was hand digitized by personnel at the USGS EROS Alaska Field Office.    

Spatial_Data_Organization_Information:

  Direct_Spatial_Reference_Method:	 Vector
  Point_and_Vector_Object_Information
      SDTS_Terms_Description
        SDTS_Point_and_Vector_Object_Type: Point
        Point_and_Vector_Object_Count: 813
        SDTS_Point_and_Vector_Object_Type: String
        Point_and_Vector_Object_Count: 1316
        SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
        Point_and_Vector_Object_Count:  814

Spatial_Reference_Information

  Horizontal_Coordinate_System_Definition
    Planar
        Map_Projection:
        Map_Projection_Name:  ALBERS
        Longitude_of_Central_Meridian: -154
        Latitude_of_Projection_Origin: 50
        Latitude_of_First_Standard_Parallel: 55
        Latitude_of_Second_Standard_Parallel: 65
        False_Easting:  0.00000
        False_Northing: 0.00000
    Geodetic Model
        Horizontal_Datum_Name:
        Ellipsoid_Name:  Clarke 1866
        Semi-major_Axis: 6,378,206.4
        Denominator_of_Flattening: 294.98

Entity_and_Attribute_Information

  Detailed_Description 
    Entity_Type
    Entity_Type_Label: PERMAFROST.PAT
    Entity_Type_Definition: Physiographic province and presence of permafrost across Alaska
    Entity_Type_Definition_Source: Ferrians, O.J., 1965, Permafrost map of Alaska
    Attribute:
        Attribute_Label: -
        Attribute_Definition: Physiographic province and presence of permafrost across Alaska
        Attribute_Definition_Source: Ferrians, O.J., 1965, Permafrost map of Alaska
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: State of Alaska
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: AREA
        Attribute_Definition:Area of poly/region in square coverage units
        Attribute_Definition_Source: Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Positive real numbers
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: PERIMETER
        Attribute_Definition:Perimeter of poly/region in coverage units
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Positive real numbers
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:PERMAFROST#
        Attribute_Definition:Internal feature number
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
   Attribute:
        Attribute_Label:PERMAFROST-ID
        Attribute_Definition:User-assigned feature number
        Attribute_Definition_Source:User-defined
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:PERMAFROST
        Attribute_Definition:Code for Physiographic province
        Attribute_Definition_Source:Ferrians, O.J., 1965, Permafrost map of Alaska
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:11,12,13,21,22,23,24,25,31
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Entity_Type
    Entity_Type_Label:PERMAFROST.AAT
    Entity_Type_Definition:Attribute table of PERMAFROST.
    Entity_Type_Definition_Source:Ferrians, O.J., 1965, Permafrost map of Alaska
    Attribute:
        Attribute_Label: -
        Attribute_Definition:Attribute table of PERMAFROST.
        Attribute_Definition_Source:Ferrians, O.J., 1965, Permafrost map of Alaska
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: -
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:FNODE#
        Attribute_Definition:Internal number of from-node
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:TNODE#
        Attribute_Definition:Internal number of to-node
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:LPOLY#
        Attribute_Definition:Internal number of poly to left of arc
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:RPOLY#
        Attribute_Definition:Internal number of poly to right of arc
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:LENGTH
        Attribute_Definition:Length of arc in coverage units
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Positive real numbers
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:PERMAFROST#
        Attribute_Definition:Internal feature number
        Attribute_Definition_Source:Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label:PERMAFROST-ID
        Attribute_Definition:User-assigned feature number
        Attribute_Definition_Source:User-defined
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value:Integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
  Overview_Description 
    Entity_and_Attribute_Overview 
    Map units are closed polygons that are generalized in shape and size.  They are
       defined in terms of their physiographic characteristics and association with
       permafrost.  Each unit differs with respect to all other units and is uniquely
       identified as shown on the table below.

    11	Mountainous Area underlain by continuous permafrost
    12	Mountainous Area underlain by discontinuous permafrost
    13	Mountainous Area underlain by isolated masses of permafrost
    21	Lowland and Upland Area underlain by thick permafrost
    22	Lowland and Upland Area underlain by moderately thick to thin permafrost
    23	Lowland and Upland Area underlain by discontinuous permafrost
    24	Lowland and Upland Area underlain by numerous isolated masses of
    permafrost
    25	Lowland and Upland Area underlain by isolated masses of permafrost
    26	Lowland and Upland Area generally free of permafrost


Distribution_Information

  Distributor
     Contact_Information
        Contact_Organization_Primary
        Contact_Organization:	U.S. Geological Survey EROS Alaska Field Office
        Contact_Person:		
     Contact_Position:	
     Contact_Address
       Address_Type:	mailing and physical address
       Address:			4230 University Drive
       City:			Anchorage
       State_or_Provence:	Alaska
       Country:			USA
     Contact_Voice_Telephone:		(907) 786-7020
     Contact_Facsimile_Telephone:	(907) 786-7036
     Hours_of_Service:	Monday - Friday, 8-5, Alaska Standard Time
   Distribution_Liability:	Users must assume responsibility to determine the usability of
				this data for their purposes.

Metadata_Reference_Section

Metadata_Date: 19961223
Metadata_Contact
  Contact_Information
    Contact_Organization_Primary
       Contact_Organization:  U.S. Geological Survey EROS Alaska Field Office
       Contact_Person:        Cathy Baxter
    Contact_Address
       Address_type: mailing and physical address
       Address:			4230 University Drive
       City:			Anchorage
       State_or Provence:	Alaska
       Country:			USA
    Contact_Voice_Telephone:		(907) 786-7020
    Contact_Facsimile_Telephone:	(907) 786-7036
    Contact_Electronic_Mail_Address:	webmaster@agdcwww.wr.usgs.gov
    Hours_of_Service:		Monday - Friday, 8-5, Alaska Standard Time
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 19940608

Last modified: 96-12-23.15:20:01.Mon Last modified on October 08, 1997.