The Alaska Statewide Digital Mapping Initiative (SDMI) will be collecting additional data for the statewide orthomosaic this summer and is planning for additional statewide elevation coverage in future.

The goal of this survey is to get user feedback to help plan for the 2011 orthomosaic collection season and to inform future priorities for elevation (DEM) collections.

The Alaska SDMI is producing a new statewide orthomosaic, which will provide complete coverage of the state at 2.5-meter effective resolution using 10 meter resolution color bands sharpened with 2.5 meter panchromatic data. Three resulting mosaics – color infra-red, psuedo-natural color, greyscale – will be created for the state. This satellite image mosaic will be the first consistent, high-resolution, high-accuracy, digital orthoimagery base layer ever produced across the entire state of Alaska.

Data for the orthomosaic was collected in 2009 and 2010, covering 39% of the state. Collection will continue in 2011, 2012, and 2013. The entire state will be imaged by 2013 and final ortho products delivered by mid-2014.

In 2010 10% of the state was collected using airborne IFSAR and will be produced as 5 meter post spacing and 20 foot contour interval accuracy DEMs. DSM, DTM, and ORI products will be delivered. Additionally, 12% of the state has legacy IFSAR data, all of which was uplifted and will now be in the public domain.

DEM data will be collected in future years as additional funding is raised.

Your responses to this survey will help us set priorities for the orthoimagery and DEM campaigns.

Please respond to a short survey at
https://www.surveymonkey.com/s/sdmi2011survey

You are also encouraged to send shapefiles with detailed areas of priority for both ortho and DEM collections to [email protected]