Alaska Department of Natural Resources
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
Start Date: 2009/05/01
End Date: 2016/09/30
Data Types: Image
Geographic Information Officer
Work: (907) 269-0880
Mobile: (907) 854-4635