Alaska Department of Natural Resources

Alaska Department of Natural Resources

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Alaska Statewide Orthomosaic

The Alaska Statewide Digital Mapping Initiative produced a new statewide orthomosaic, which will provide complete multispectral coverage of the state at 2.5-meter spatial resolution. This satellite image mosaic is the first consistent, high-resolution, high-accuracy, digital orthoimagery base layer ever produced across the entire state of Alaska.

The orthoimage was produced to 1:24,000 National Map Accuracy Standards (NMAS) with a CE90 of 12.2-meters. This means that more than 90% of the points will be within 12.2 meters or better of their true location on the Earth. This is an accuracy improvement of at least three times for most existing maps of Alaska. there are three statewide mosaics : color infrared (CIR), psuedo-natural color, and panchromatic (grayscale). The full land area of Alaska with a 1-kilometer buffer around the coastline and border.

The source data is licensed for use by the US public sector and academia at no additional cost. Others can purchase licenses to use the data at a reduced cost. The orthomosaics are publicly available to all US users via Open Geospatial Consortium web services. Please email GeoNorth for details.

2016 refresh imagery was acquired from the AirBus SPOT 6 and SPOT 7 satellites and pan-sharpened to 1.5-meter horizontal pixel resoultion.

Data and Resources

  • Download
    Download :: Alaska Statewide Orthomosaic Poster

    alaska_statewide_orthomosaic_32x22_poster.pdf (78 MB)

  • View website
    Website :: Alaska Geospatial Council - Imagery Page

    http://agc.dnr.alaska.gov/imagery.html

  • View wms
    WMS

    http://gis.dnr.alaska.gov/terrapixel/cubeserv/ortho

Status: Ongoing
Start Date: 2009/05/01
Type: Data
End Date: 2016/09/30
Data Types: Image
Primary Contact
Johnson, Anne
Geographic Information Officer
Email: anne.johnson@alaska.gov
Work: (907) 269-0880
Mobile: (907) 854-4635
Primary Agency
Alaska Department of Natural Resources
Type
State

Funding Agency
Alaska Department of Natural Resources
Type
State

Geo-keywords
Alaska

Map Layers
Name URL Layer Names
WMS :: GeoNorth Ortho RGB WMS http://gis.dnr.alaska.gov/terrapixel/cubeserv/ortho SDMI_ORTHO_RGB.SDMI_ORTHO_RGB
Source Portal
GINA ::

Direct Record Link
http://southcentral.epscor.alaska.edu/catalogs/7058-alaska-statewide-orthomosaic
  • 4e78da0aec399c6a0b27ee9707748024
    Updated by Peter
    2017-10-24 14:11:53 -0800
  • 01c8ceef3d596f40f05bf496ca00d929
    Updated by Lisa
    2017-10-24 13:02:27 -0800
  • 4e78da0aec399c6a0b27ee9707748024
    Updated by Peter
    2017-10-24 12:47:13 -0800
  • 01c8ceef3d596f40f05bf496ca00d929
    Updated by Lisa
    2017-10-24 12:46:58 -0800
  • 4e78da0aec399c6a0b27ee9707748024
    Updated by Peter
    2017-10-24 12:32:09 -0800
  • 4e78da0aec399c6a0b27ee9707748024
    Updated by Peter
    2017-10-24 12:27:43 -0800
  • 4e78da0aec399c6a0b27ee9707748024
    Updated by Peter
    2017-10-24 12:15:18 -0800
  • 4e78da0aec399c6a0b27ee9707748024
    Updated by Peter
    2017-10-24 12:12:55 -0800
  • 706fe41b6f8121310644a62c6ab08a52
    Updated by Vanessa
    2015-09-15 13:43:29 -0800
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