IT

2011 Mat Su LiDAR & Imagery Project

  • General Information

    Contacts
    James DePasquale GIS Manager
    907-745-9858

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    The 2011 MSB LiDAR & Imagery Project is a collection of high-resolution elevation data and aerial imagery for 3680 square miles of the Matanuska-Susitna Borough (MSB) as well as the development of a number of ancillary datasets. For data management purposes the project has been divided into 7 blocks/areas: Matanuska, Core Area, Point MacKenzie, Willow, Caswell Lakes, Talkeetna, & North Susitna. The project is being managed by the MSB in collaboration with the US Geological Survey (USGS) and US Fish and Wildlife Service (USFWS).

    The following partners have contributed funding and/or resources to the project: Coastal Impact Assistance Program (CIAP); United States Geological Survey (USGS); Alaska Energy Authority (AEA); United States Fish and Wildlife Service (USFWS); The Nature Conservancy (TNC); National Oceanic and Atmospheric Administration (NOAA) Mat-Su Salmon Partnership; United States Army Corps of Engineers (USACE); Alaska Pacific University (APU); & Matanuska Susitna Borough (MSB).

     

    Project Area Map
    Project Area Map by Blocks

    Profile View of Point Cloud Data – Old Matanuska River Bridge, Palmer, AK
  • Current Status

    For data management purposes the project has been divided into 7 blocks/areas.

    While most of the project area was flown in 2011, a small portion of LiDAR was not collected in Hatcher Pass area and portion of imagery was not collected for the Matanuska Block. Those areas will be collected in 2012.

    All the areas that were flown in 2011 are in various states of completion and availability.

    The following table provides a status update on the products by block.

    Block Imagery LiDAR &
    Ancillary Products
    ½ ft Resolution 1ft Resolution
    Point MacKenzie Block  N/A  Accepted  Accepted
    Willow Block  N/A  Accepted  QA/QC
    Caswell Lake Block  N/A  Accepted  QA/QC
    Talkeetna Block  N/A  Accepted  QA/QC
    North Susitna Block  N/A  Accepted  In Production
    Core Area Block  QA/QC  In Production  In Production
    Matanuska Block  QA/QC  In Production  In Production

     

    The status can fall into one of five categories:

    In Production = Being developed by the vendor.
    QA/QA = Delivered and going through the Quality Assurance Quality Control (QA/QC) process.
    Accepted =
    Passed the QA/QC process and has been accepted.
    Available = Prepared for distribution and available.
    N/A =
    Product not available for the area.

  • Products

    • Orthorectified, multispectral, 4-band imagery (RGB & NIR); ½ ft resolution, for a 270 sq/mi urban area; 1 ft resolution, for the entire 3680 sq/mi project area
    • Point Cloud Data w/ 1m true nominal pulse spacing (nps) and 0.6m nps through overlap (these data meet both USGS & FEMA specs); classified and unclassified
    • Automated “vegetation” classification; low (1-6ft), medium (6-15ft) and high (>15ft) Intensity Images
    • 1 m first return digital surface model (DSM) (aka top of canopy)
    • 1 m bare earth digital elevation model (DEM) w/ hydro-flattening
    • 1 m first return hillshade
    • 1m bare earth hillshade
    • 2 ft contours
    • Building footprints @ 97% accuracy
    • Breaklines

    More information about each of these products can be found in the Frequently Asked Questions.

    Ortho-Imagery (True Color Composite) Bare Earth Hillshade Contours Ortho-Imagery (NIR False Color Composite)

  • Order Data

    LiDAR data is not available just yet.  Check back here in the near future for online ordering.

MSB Information Technology Department
About the GIS Division PDF Print E-mail

MSB DEM imageIn the simplest of terms, GIS refers to computerized mapping. But in reality, the term "GIS" encompasses much more than that. GIS is an acronym for Geographic Information System. GIS is a computerized technology which merges graphical information with database information. The result is a powerful tool that allows the user to graphically display, query, and analyze data.

The Matanuska-Susitna Borough has utilized GIS and computer-aided drafting technology since the mid-1980s. GIS technology helps Borough administrators make better-informed decisions and Borough staff to operate more efficiently.

The GIS Division provides mapping services for other Borough departments and the Borough Assembly. It also assigns physical site addresses within unincorporated areas of the Borough and the City of Houston. Some of the map sets maintained by the GIS Division include the tax parcel maps, voting precinct maps, and map sets for the 911 Dispatch Center in Palmer.

For additional general information about GIS, the Borough recommends that you view the Wikipedia GIS web page or the GIS.COM web page at http://www.gis.com. There, you will find plenty of information about GIS, with examples of how a wide variety of people use it.

 

 

 


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