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Alaska Land Cover Mapping Project

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S.G.S. EROS Alaska Field Ofice/U.S. Forest Service
Publication_Date: 19990526
Title: Alaska Land Cover Mapping Project
Edition: 1
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Anchorage AK
Publisher: USGS-EROS Alaska Field Office
Online_Linkage: <https://agdc.usgs.gov>
Description:
Abstract:
Since the early 1980's the EROS Alaska Field Office (AFO) has been involved in the acquisition, classification, and analysis of digital land cover data over the State of Alaska, and to a limited extent, northwestern Canada and Wrangle Island, Russia. The digital data currently covers approximately 77% of the land and water within the boundaries of the State of Alaska. These data are currently being made available via the AFO web site to land managers and researchers who may be interested in land cover conditions over various portions of Alaska. The land cover maps as a result of digital analysis of Landsat multispectral scanner, Landsat thematic mapper, and SPOT multispectral scanner satellite data. Some data however, are missing from the database due to data degradation on storage media or loss of data tapes, although a limited number of hard copy map products may be in existence, for example, U.S. Forest Service land cover data for southeast Alaska. The land cover data are stored online in a series of directories and are available via the web. Each directory name is indicative of the area for which the land cover data exists. Some directories connote a U.S. Geological Survey 1:250,000 quadrangle (for example, anchorage_int), while others indicate a particular project area (for example, anwr represents Arctic National Wildlife Refuge) or the agency responsible for producing the data. For example, nowitna.fws indicates that the data were produced for the U.S. Fish and Wildlife Service. Directories with an '_int' suffix denote that the data correspond to the Interim Landcover Mapping project. Each directory contains five files with the following extensions: .bil, .blw, .hdr, .prj, and .stx. As a group, one or more of the files can be read by most image analysis and GIS software packages. The .bil file contains the binary raster land cover data and the others are ASCII files. The .bil file does not contain any header or footer records, and can be easily imported into image processing software by using the information contained in the .blw and .hdr files. The .blw file provides pixel size information as well as the upper left corner coordinate. The .hdr contains number of rows and columns of the data set, as well as band format (band interleave). The .prj file gives projection information, and the .stx file gives information on minimum/maximum/ mean values of the data. Projection parameters for the data sets are either in Universal Transverse Projection (UTM) or Alaska Albers Equal Area Conic.
Purpose:
The data base provides researchers and managers a central area to obtain this information and is continuously being updated as new data become available. Access to the data may be found at <https://agdc.usgs.gov>.
Supplemental_Information:
Port Alexander quad for U.S. Forest Service Landcover Class Legend

Class Class Name ----- ---------- 1 Clear water 2 Turbid water 3 Sparcely vegetated 4 Barren 5 Shadow 6 Closed needleleaf 7 Open needleleaf 8 Tall/closed shrub 9 Low/open shrub 10 Empty 11 Forb/graminoid 12 Snow/ice 13 Sparcely vegetated 14 Needleleaf woodland 15 Empty 16 Needleleaf woodland 17 Empty 18 Empty 19 Barren 20 Barren 21 Barren 30 Barren

***** Spatial Reference Information (Beg) *****

Projection Parameters

Spatial Information Raster: Number of Columns: 2494 Number of Rows: 2239 Pixel Resolution (m): 50 Data Type: byte

***** Spatial Reference Information (End) *****

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19800501
Ending_Date: 20000201
Currentness_Reference: publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 0
East_Bounding_Coordinate: 0
North_Bounding_Coordinate: 0
South_Bounding_Coordinate: 0
Keywords:
Theme:
Theme_Keyword_Thesaurus: EARTH SCIENCE > LAND SURFACE> Land Use/Land Cover
Theme_Keyword: Land Use/Land Cover
Place:
Place_Keyword_Thesaurus: U.S.A. > Alaska
Place_Keyword: Port Alexander
Temporal:
Temporal_Keyword_Thesaurus: USGS/EROS/Alaska Field Office
Temporal_Keyword: 1980 -1999
Access_Constraints: None Known
Use_Constraints:
Full acknowledgement given to data owner/producer, or the EROS Alaska Field Office
Browse_Graphic:
Browse_Graphic_File_Name: None
Browse_Graphic_File_Description: None
Browse_Graphic_File_Type: None

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Data Base Administrator
Contact_Organization: U.S.G.S EROS Alaska Field Office
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 4230 University Dr.
City: Anchorage
State_or_Province: AK
Postal_Code: 99508-4664
Country: U.S.A.
Contact_Voice_Telephone: 786-7000
Contact_Facsimile_Telephone: 907-786-7036
Contact_Electronic_Mail_Address: agdcweb@usgs.gov
Distribution_Liability:

Metadata_Reference_Information:
Metadata_Date: 19990526
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Data Base Administrator
Contact_Organization: U.S.G.S EROS Alaska Field Office
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 4230 University Dr.
City: Anchorage
State_or_Province: AK
Postal_Code: 99508-4664
Country: U.S.A.
Contact_Voice_Telephone: 786-7000
Contact_Facsimile_Telephone: 907-786-7036
Contact_Electronic_Mail_Address: agdcweb@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998


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Page Last Modified: Wednesday, 07-Dec-2016 12:20:10 AKST