2011 USGS NOAA USACE Lidar: Matanuska-Susitna Borough, AK

The Matanuska Susitna Borough LiDAR/Imagery Project covers 3680 sq/mi of the Matanuska-Susitna Borough in Alaska. Project parnters and funding sources include: Coastal Impact Assistance Program, Alaska Industrial Development and Export Authority, Alaska Energy Authority, United States Geological Survey, Matanuska Susitna Borough, United States Army Corps of Engineers, United States Fish and Wildlife Service, The Nature Conservancy, National Oceanic and Atmospheric Administration, Mat-Su Salmon Partnership, and Alaska Pacific University.
        
This dataset was originally in LAS 1.2 format with a non-standard class table. The format and the class table has been changed. Details are in the processing steps.

      The following are the collection parameters and equipment used to create these data sets. The Leica sensor was used for flights in the northern half of the Core Area. All other flights were flown with Optech sensors.

      Aircraft: Cessna 310(N7516Q), Piper Navajos (N6GR,T73TM and 812TB), Beechcraft KingAir (N898WW)
      Lidar Systems: Optech ALTM Gemini (03SEN145 and 07SEN201) and Leica ALS 70
      Approximate Collection Altitude (Above Mean Terrain): Optech--1400 meters, Leica--2200 meters
      Ground Speed: Optech--150 kts, Leica--160 kts
      Pulse Rate Frequency: Optech--70 kHz, Leica--163.6 kHz
      Mirror Scan Frequency: Optech--40 Hz, Leica--41 Hz
      Scan Angle (+/-): Optech--17 degrees, Leica--16 Degrees
      Beam Divergence: Narrow (0.3 mrad)

      Accuracy statements are based on areas of moderate terrain, with points classified as ground. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation. The accuracy of each point is expected to meet the vertical accuracy standard, derived products may be less accurate in areas of extreme terrain and dense vegetation due to a lesser number of points defining the ground in these areas.

      Classified data sets such as this one may have varying posting due to some pulses not reaching the ground.
      
Original contact information: 
   Contact Name: Lidar Manager
   Contact Org: Aerometric, Inc.
   Title: Lidar Manager
   Phone: (907) 272-4495
   Email: aerometric@aerometric-ak.com

Tags: 2011, 2011 data from the knik glacier withheld from ground/vegetation classification due to movement., 2011 data from the matanuska glacier withheld from ground/vegetation classification due to movement., 2012, alaska, august, bare-earth, bathymetry/seafloor topography, class 14: bridge deck, class 15: noise (unclassifed data 1 foot or less above ground), class 16: powerlines, class 18: may 24, class 19: may 31, class 1: unclassified, class 2 with user byte 2: breakline proximity ground points, class 26: may 13, class 27: may 24, class 28: august 26, class 2: ground, class 3: low vegetation (less than 6 feet above ground surface), class 4: medium vegetation (between 6 and 15 feet above ground surface), class 5: high vegetation (more than 15 feet above ground surface), class 6: buildings, class 7: error points (noise), class 8: contour keypoints, class 9: water, coastal elevation, coastal processes, continent, doc/noaa/nos/ocm, earth science, land surface, lidar, may, national ocean service, noaa, north america, oceans, october, office of coastal management, seafloor topography, terrain, terrain elevation, topographical relief maps, topography, u.s. department of commerce, united states of america
Organization: National Oceanic and Atmospheric Administration, Department of Commerce