National Lidar Dataset (United States)

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Currently, the best source for nationwide LiDAR availability from public sources is the United States Interagency Elevation Inventory (USIEI).[1] The USIEI is a collaborative effort of NOAA and the U.S. Geological Survey, with contributions from the Federal Emergency Management Agency. The inventory displays high-accuracy topographic and bathymetric data for the US, and it's intended to be a comprehensive, nationwide listing of known high-accuracy topographic data, including lidar. The most recent inventory was completed August 2013 and will be updated annually. Note, however, that getting access to the data is often less than straightforward in the current implementation.

History: In the United States, the United States Geological Survey (USGS) was the lead agency coordinating efforts across multiple agencies towards a National LIDAR Dataset. The first meeting, a National LIDAR Initiative Strategy Meeting, was held at USGS headquarters in Reston, Virginia in February 2007. In May 2008 a second meeting[2] was held, co-sponsored by USGS, NASA, and the AASG. In 2009, several sessions at the annual American Society for Photogrammetry and Remote Sensing meeting were devoted to this initiative.[3]

The USGS website remains a central source for information about the national initiative, and it includes presentation materials from the various meetings about the subject. This site also discusses how the USGS incorporates LIDAR data into the National Elevation Dataset. In addition to USGS and NASA, numerous government agencies have indicated their interest in such a project, including National Geospatial-Intelligence Agency (NGA), the Federal Emergency Management Agency (FEMA), US Army Corps of Engineers, NOAA, and NRCS.[4]

While there is consensus at a federal level supporting the creation of a National LIDAR Dataset, key aspects remain unresolved, including funding, data specifications, and the delineation of agency roles and responsibilities.[5] While these issues are pending, the following states are among those moving forward with their own state-wide LIDAR datasets:

State Dataset Status Source
Connecticut Complete (med-res) CT Lidar 10' DEM
Delaware Complete Delaware Spatial Data Framework
Florida Partial FL Coastline Project
Idaho Partial ID LiDAR Consortium
Illinois Partial IL Height Modernization Program
Iowa Complete IA GeoTree Lidar Mapping Project
Kansas Partial Kansas GIS/DASC
Louisiana ~Complete Louisiana Atlas
Maryland Partial MD DNR LiDAR, or NOAA
Massachusetts Partial - Boston area only Available for purchase from MassGIS [6]
Minnesota Partial MN Lidar Status
New Hampshire Partial GRANIT/Coastal data
New Jersey Partial NJ Lidar Status
New York Partial NYS Lidar Coverage, or NYS Orthos
North Carolina Complete NC Floodmapping Program
NCDOT Elevation Data
North Dakota Partial ND LIDAR Dissemination Mapservice
Ohio Complete Ohio Statewide Imagery Program
Oregon Partial Oregon Lidar Consortium
Pennsylvania Complete PAMAP Program LiDAR
South Carolina Partial SC Lidar Consortium
Tennessee Partial County Map
Texas Partial TNRIS/Texas
Utah Partial UT Lidar datasets
Vermont Partial VCGI
Virginia Partial William and Mary CGA State Lidar datasets
Wisconsin In progress WI: 14 counties
Wyoming In progress Wyoming Statewide LIDAR Effort


Regardless of the degree of state coordination, some counties choose to handle (and control) high resolution LiDAR acquisition and distribution on their own. Such counties include:

References[edit]