WMS / WFS Training
July 10th, 2008
Links to WMS/WFS Documentation and Training Materials
Download SDMI WMS ArcGIS layer files (*,lyr)
Please email your questions and comments to wms@alaskamapped.org Thanks!
update: WMS available in Google Earth
SDMI Briefing Paper and AKSMC booth
February 26th, 2008
A two page paper summarizing SDMI goals and status as of February 2008 is now avaialble.
From the briefing:
Summary:
Government, military, and commercial operations need accurate digital base maps to meet their missions. Alaska’s Statewide Digital Mapping Initiative (SDMI) is an interagency program to produce high-resolution, digital base maps of the entire state. Existing topographic maps of Alaska are more than 40 years old, and inaccuracies of up to a quarter-mile exist in places. Alaska is the only state in the nation without current digital imagery and elevation maps at nationally accepted standards.
Read more... SDMI Briefing Paper: February 25, 2008
Also, SDMI will have a booth at the 42nd annual Alaska Surveying & Mapping conference this week from Tuesday afternoon until Thursday evening. There will also be a Friday morning technical session about SDMI.
SDMI Briefing Paper
August 2nd, 2007
A one page briefing paper summarizing SDMI goals and status as of July 2007 is now available.
From the briefing:
Summary:
Alaska’s Statewide Digital Mapping Initiative is an interagency effort to produce high-resolution, digital base maps of the entire state. Existing topographic maps of Alaska are more than 40 years old, and it’s common to find inaccuracies of up to a quarter-mile. Government and military operations and, just as importantly, private entities, need accurate digital base maps to succeed in computerized data environments. This initiative is timely because Alaska is the only state without digital imagery and elevation maps at nationally accepted standards.
Alaska High-Altitude Photography (AHAP) Program 1978-1986
July 9th, 2007
Much of Alaska was photographed from high-altitude U-2 and ER-2 aircraft between 1978 and 1986 under a multi-agency, State and Federal partnership: The Alaska High-Altitude Photography Program (AHAP). The SDMI has secured copies of two program documents, has scanned them, and is making them available for download.
From the AHAP Program booklet executive summary:
Until 1978, State and Federal land resource management originations had been restricted in their oversight responsibilities by the lack of a uniform mapping database. Few maps had been made and those maps dated back to the Second World War. By the early 1970’s existing geographic information and aerial photographs were so outdated and inconsistent that they were unusable for current mapping.
In 1978, State and Federal agencies formed the Alaska High-Altitude Aerial Photography (AHAP) Program to develop a uniform aerial mapping photographic database. Funding was shared between the State of Alaska and the Federal government. Since the initiation of the program, approximately 90 percent of Alaska has been photographed.
The finished product of the AHAP Program is a set of unified and coordinated aerial photographs. Some of the uses of the AHAP photographs are the identification of diseased tree stands, monitoring shoreline changes, charting vegetation regrowth after a fire, delineating transportation corridors, making land conveyance determinations for bodies of water, and accelerating conveyance of land to the State and Native corporations.
Source: The Alaska High-Altitude Photography (AHAP) Program: A State/Federal Cooperative Program (6.4MB PDF), Paul D Brooks, 1988.
There is also a technical report that maps acquisitions:
SUMMARY OF ACQUISITION, 1978 - 1986: This summary is a graphical representation of high altitude photographic coverage of the State of Alaska flown in support of the consortium of Federal/State agencies. This series of twenty overlays are 1:2.5 million Transverse Mercator projection plots of center points of 1:60,000 color infrared photography with 10 percent cloud cover or less. The overlays are scaled to fit the US Geological Survey Topographical Map Index. In addition to the depiction of center points, each overlay lists the appropriate flight numbers associated with the coverage as a guide to more rapid access and retrieval.
from: Alaska High Altitude Photography Program: 1978 - 1986, Summary of Acquisition (5.6MB PDF), Airborne Instrumentation Research Project Applications Research Report, NASA Ames Research Center, 1988.
Alaska Mapping Strategic Plan
March 9th, 2007
Alaska Statewide Digital Mapping Initiative Strategic Plan (920 kB) March 9, 2007