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Yukon Delta National Wildlife Refuge

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S.G.S. EROS Alaska Field Ofice
Publication_Date: 19990526
Title: Yukon Delta National Wildlife Refuge
Edition: 1
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Anchorage AK
Publisher: Alaska Department of Natural Resources
Online_Linkage: <https://agdc.usgs.gov>
Description:
Abstract:
This project produced a Landsat MSS derived land cover map of the Yukon Delta National Wildlife Refuge using IDIMS image processing software and associated ancillary data (e.g., slope, aspect, and elevation).
Purpose:
EROS ALASKA FIELD OFFICE - ALASKAN LAND COVER DATA BASE

Since the early 1980s, the EROS Alaska Field Office (AFO) has been involved in the acquisition, classification, and analysis of vegetative land cover data over the State of Alaska, and to a limited extent, northwestern Canada and Wrangle Island, Russia. Recently, an attempt has been made to acquire the historical land cover data produced by the various State and Federal agencies in Alaska and make them available to land managers and researchers who may be interested in land cover conditions over various portions of Alaska. The data currently available consists of final land cover maps as a result of spectral classification of Landsat multispectral scanner, Landsat thematic mapper, or SPOT multispectral scanner satellite data. The data within this database currently covers approximately 70% of the land and water within the boundaries of the State of Alaska. It should be noted that data over some areas of the State are missing from the database due to data degradation on storage tape media or loss of data tapes, although a limited number of hard-copy map products may be in existence (e.g., southeast Alaska).

Database Description

The land cover data are currently in a series of directories and associated files which are available via ftp. Each directory name is indicative of the area for which the land cover data exists. Some directories indicate a U.S. Geological Survey 1:250,000 quadrangle (e.g., anchorage_int), while others indicate a particular project area (e.g., anwr for Arctic National Wildlife Refuge). Also associated with some of the names is an indicator of the agency responsible for producing the data (e.g., nowitna.fws or U.S. Fish and Wildlife Service). Directories with an '_int' suffix indicate that the data correspond to Interim Land cover Mapping project as described by Shasby and Carneggie 1986 or Fitzpatrick-Lins and others 1989.

Each directory contains five files with the following extensions: .bil, .blw, .hdr, .prj, and .stx. As a group, the files are easily read by ARC/INFO GRID, with the resulting grid containing all of the georeference information. The .bil file contains the binary raster land cover data and can be read into almost any of the common image processing software packages. The .blw file gives 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 sequential or interleave). The .prj file gives projection information, and the .stx file gives information on minimum/maximum/ mean values of the data.

Fitzpatrick-Lins, K., Doughty, E.F., Shasby, M., and Benjamin, S., 1989. Alaska Interim Land Cover Mapping Program - Final Report, U.S. Geological Survey Open-File Report 89-128, Reston, Virginia.

Shasby, M., and Carneggie, D., 1986. Vegetation and terrain mapping in Alaska using Landsat MSS and digital terrain data, Photogrammetric Engineering and Remote Sensing 52:779-786.

Supplemental_Information:
Land Cover Class Legend

1 Snow/Ice 2 Cloud/Cloud Shadow 3 Open Needleleaf Forest 4 Mixed Forest 5 Broadleaf Forest 6 Subalpine Scrub 7 Lowland Scrub 8 Lichen-Dwarf Shrub Peatland 9 Dwarf Shrub-Graminoid Peatland 10 Graminoid-Dwarf Shrub Peatland 11 Graminoid Tussock Dwarf Shrub Peatland 12 Erect Dwarf Shrub Heath 13 Prostrate Dwarf Shrub Heath 14 Dwarf Shrub Boulderfield 15 Forb Marsh 16,17 Graminoid Marsh 18 Graminoid Meadow 19 Wet Graminoid Bog 20 Mesic Graminoid Bog 21 Scarcely Vegetated Mudflats 22 Scarcely Vegetated Scree 23 Clear Onshore Water 24,25 Moderately Turbid Onshore Water 26,27 Very Turbid Onshore Water 28 Clear Offshore Water 29,30 Moderately Turbid Offshore Water 31 Very Turbid Offshore Water 32 No Data 33 Refuge Boundary (not on all maps)

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

Projection Parameters

Spatial Information Raster: Number of Columns: 3450 Number of Rows: 2550 Pixel Resolution (m): 50 Data Type: byte

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

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19800505
Ending_Date: 19820601
Currentness_Reference: publication date
Status:
Progress: Complete
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 > Bristol Bay
Place_Keyword: Bristol Bay
Place_Keyword: Marshall
Temporal:
Temporal_Keyword_Thesaurus: 1980 - 1999
Temporal_Keyword: 1982
Access_Constraints: None Known
Use_Constraints:
Full acknowledgement given to data owner/producer, or the Alaska Department of Natural Resources and 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
Resource_Description: Digital Raster Data
Distribution_Liability:
Some U.S. Geological Survey (USGS) information accessed through this page may be preliminary in nature and presented without the approval of the Director of the USGS. The information and data provided is with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.

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 12:20:09 AKST