2006 Florida LiDAR: Escambia, Santa Rosa, and Walton Counties
ESCAMBIA: The Light Detection and Ranging (LiDAR) LAS dataset is a survey of select
areas within Escambia County, Florida. These data were produced for Dewberry and Davis
LLC. The Escambia County LiDAR Survey project area consists of approximately 803 square
miles. The LiDAR point cloud was flown at a density sufficient to support a maximum
final post spacing of 6 feet for unobscured areas. Land Air mapping acquired 110 flightlines
between June 21, 2006 and July 18, 2006. The data was divided into 5000' by 5000'
foot cells that serve as the tiling scheme. The Escambia County LiDAR Survey was collected
under the guidance of a Professional Mapper/Surveyor. Dates of Collection: 20060621-20060718
Contractor: Dewberry and Davis, LLC SANTA ROSA: LiDAR data collection was performed
utilizing a Leica ALS-50 sensor, collecting multiple return x, y, and z data as well
as intensity data. LiDAR data was processed to achieve a bare ground surface. LiDAR
data was delivered in LAS format. Dates of Collection: 20060112-20060228 Contractor:
Photo Science, Inc. WALTON: LIDAR data is remotely sensed high-resolution elevation
data collected by an airborne collection platform. Using a combination of laser range
finding, GPS positioning and inertial measurement technologies; LIDAR instruments
are able to make highly detailed Digital Elevation Models (DEMs) of the earth's terrain,
man-made structures and vegetation. This data of Walton County, Florida, was collected
at sub-meter resolution to provide average point spacing of 0.7m for collected points.
Up to 5 returns were recorded for each pulse in addition to an intensity value. No
data for Eglin AFB, permission to fly over was ever granted. Dates of Collection:
20060710-11, 19-20, 22-23, 26-29, 20060801, 03, 06-07, 13, 15, 17 Contractor: Sanborn
Cite this dataset when used as a source.
|Search and Download
|| Distributor information not available
| Point of Contact
Lidar Final Report
Lidar Final Report
Lidar Final Report
|Data Presentation Form:
|| Digital image
|Dataset Progress Status
|Data Update Frequency:
|| Not planned
||Reflective surface data represents the DEM created by laser energy reflected from
the first surface encountered by the laser pulse. Some energy may continue beyond
this initial surface to be reflected by a subsequent surface as represented by the
Last Return data. Intensity information is captured from the Reflective Surface pulse
and indicates the relative energy returned to the sensor as compared to the energy
transmitted. The Intensity image is not calibrated or normalized but indicates differences
in energy absorption due to the interaction of the surface materials with laser energy
at the wavelength transmitted by the sensor. Points are classified as on ground surface
or not on ground surface to support creation of a bare earth model from the data.
Points in the filtered ground class determined to be in open waterways or water bodies
were reclassified as Water.
||ESCAMBIA: The Northwest Florida Water Management District uses topographic information
to support regulatory, land management and acquisition, planning, engineering, and
habitat restoration projects. The Escambia County LiDAR Survey data will support the
creation of Federal Emergency Management Agency Flood Insurance Rate Maps (FEMA FIRM)
and an integrated ground and surface water model for the Escambia County. All data
will be public record as defined by applicable Florida statues. The Escambia LiDAR
Survey was collected under the guidance of a Licensed and professional Surveyor and
Mapper. SANTA ROSA: Final product delivery of bare ground surface was intended to
suit the needs of NOAA for elevation-related tasks. WALTON: This data was collected
to support the creation of the Federal Emergency Management Agency Flood Insurance
Rate Maps (FEMA FIRM) and an integrated ground and surface water model for Walton
||2006-01-12 to 2006-08-17
|Spatial Reference System:
|Spatial Bounding Box Coordinates:
|Spatial Coverage Map:
- Digital Elevation Model
- Surface Model
- Escambia County
- Santa Rosa County
- Walton County
| Use Constraints
|| No constraint information available
|| Fee information not available.
|| Lineage statement not available.
- DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department
| Processing Steps
- Data was collected, processed, quality checked and delivered by vendor. For a more
detailed listing of the specific Process Steps for each county's data set, please
contact the NOAA Coastal Services Center.
- The NOAA Coastal Services Center (CSC) received files in LAS format. The files contained
LiDAR intensity and elevation measurements. CSC performed the following processing
on the data to make it available within the LiDAR Data Retrieval Tool (LDART): 1.
The LAS files were converted from UTM coordinates to geographic coordinates. 2. The
LAS header fields were sorted by latitude and updated. 3. The data was filtered to
- The NOAA National Geophysical Data Center (NGDC) received lidar data files via ftp
transfer from the NOAA Coastal Services Center. The data are currently
being served via NOAA CSC Digital Coast at http://www.csc.noaa.gov/digitalcoast/.
The data can be used to re-populate the system. The data are archived in LAS or LAZ
The LAS format is an industry standard for LiDAR data developed by the American Society
of Photogrammetry and Remote Sensing (ASPRS); LAZ is a loseless compressed version
LAS developed by Martin Isenburg (http://www.laszip.org/). The data are exclusively
in geographic coordinates (either NAD83 or ITRF94). The data are referenced vertically
the ellipsoid (either GRS80 or ITRF94), allowing for the ability to apply the most
up to date geoid model when transforming to orthometric heights.
Metadata Last Modified: 2013-06-11
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