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FEMA Leverages LiDAR
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FEMA’s California Coastal Analysis and Mapping Projects – the San Francisco Bay Area Coastal Study and the California Ocean Pacific Coastal Study – benefit from using the latest coastal LiDAR (Light Detection and Ranging) data collected in the coastal areas as the primary topographic data set for the detailed overland coastal hazard analysis and mapping. LiDAR is a state of the art remote sensing technology, used in conjunction with high resolution aerial photography, for collecting very high quality topographic data using aerial-based laser survey.

The LiDAR data was collected as part of the California Ocean Protection Council’s California Shoreline Mapping Project California Shoreline Mapping Project to support the production of maps for coastal management applications, such as assessment of vulnerability from severe storms, sea-level rise, and coastal erosion.  The project, which covered 3,779 square miles along the coast (between the shoreline and the 10 meter elevation contour) from Mexico to the Oregon border, was highly collaborative with partnerships between the California Ocean Protection Council, California Coastal Conservancy, National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center, the U.S. Geological Survey, U.S. Army Corps of Engineers, and industry partners: Fugro EarthData, Inc. and Dewberry. 

These data sets are now available on-line for the entire California coastline, including San Francisco Bay, with digital elevation models and aerial photographs. All of these data sets can be downloaded from NOAA Coastal Services Center’s Digital Coast website.
 
Detailed descriptions of the LiDAR data and digital elevation models are available at:
 
 
 
The Ocean Protection Council’s California Coastal Mapping Program provides additional information.
 

 

http://www.r9map.org/Pages/EbulletinStory.aspx?storyID=6
 

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