2006 Florida LiDAR: Escambia, Santa Rosa, and Walton Counties
Dataset Identification:
Resource Abstract:
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
Citation
Title 2006 Florida LiDAR: Escambia, Santa Rosa, and Walton Counties
publication Date
2007-01-01
presentationForm
imageDigital
cited responsible party
-
originator
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
other Citation Details
Cinergi keyword enhanced.File generated at Thu Aug 24 10:00:26 UTC 2017
purpose:
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 County.
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
notPlanned
Constraints on resource usage:
Constraints
Use limitation statement:
These data depict the elevations at the time of the survey and are only accurate for that time. Users should be aware that
temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual
surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.
Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data
are NOT to be used for navigational purposes.
Constraints on resource usage:
Legal Constraints
Use Limitation
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state
of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of
the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact
of distribution constitute such a warranty.
Spatial representation type code:
vector
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-87.643918
eastBoundLongitude
-85.820634
northBoundLatitude
31.01
southBoundLatitude
30.260327
Temporal Extent
2006-01-12
2006-08-17
Additional information on resource:
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.
point of contact
-
pointOfContact
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems
and Coordinate Transformations.
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
ESCAMBIA: Countywide LiDAR dataset compiled to meet 1 meter horizontal accuracy at 95% confidence level. SANTA ROSA: None
WALTON: Compiled to meet 1 meter horizontal accuracy at 95% confidence level.
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description
ESCAMBIA: Countywide LiDAR dataset tested 13.7 cm vertical accuracy at 95% confidence level in open terrain, based on open
terrain RMSEz (7 cm) x 1.9600; tested 33.3 cm vertical accuracy at 95% confidence level in all land cover categories combined,
based on consolidated RMSEz (17 cm) x 1.9600. Independent accuracy testing was performed by Dewberry & Davis using 101 high
accuracy quality control checkpoints distributed throughout the county in five major land cover categories identified by the
North West Florida Water Management District. Dewberry used testing procedures consistent with those specified in the National
Standard for Spatial Data Accuracy (NSSDA) as well as LiDAR accuracy testing guidelines and specifications published by the
Federal Emergency Management Agency (FEMA), National Digital Elevation Program (NDEP), and American Society for Photogrammetry
and Remote Sensing (ASPRS). SANTA ROSA: LiDAR data accuracy is in accordance with the National Standard for Spatial Data Accuracy
(NSSDA). When compared to GPS survey grade points in generally flat non-vegetated areas, at least 95% of the positions have
an error less than or equal to 36.3 cm (equivalent to root mean square error of 18.5 cm if errors were normally distributed).
WALTON: 13 cm root mean square error (RMSE)
Completeness Commission
evaluation Method Description
ESCAMBIA: The LAS files were flown at a density sufficient to support 2-foot topographic products for unobscured areas. The
bare-earth surface will contain voids in areas that were densely vegetated, covered by bridges, buildings, water, fresh asphalt,
sand etc. SANTA ROSA: Complete WALTON: LIDAR raster data is visually inspected for completeness to ensure that any gaps between
flight lines or loss of signal represents less than 5% of required collection area. LIDAR is self-illuminating and has minimal
cloud penetration capability. Water vapor in steam plumes or particulates in smoke may cause reflection of LIDAR signals and
loss of elevation information beneath these plumes. Glass structures and roofs may appear transparent to the LIDAR signal
and therefore may not register on the reflective surface. Some asphalt formulations have been shown to absorb topographic
LIDAR wavelength energy resulting in "pitting" of roof surfaces using this material. No data for Eglin AFB, permission to
fly over was ever granted.
ConceptualConsistency
measure Description
ESCAMBIA: The LAS files were flown at a density sufficient to support a maximum final post spacing of 6 feet for unobscured
areas. 3001 inc. 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. SANTA ROSA: LiDAR data was delivered covering the full extent of Santa Rosa County, Florida, with coverage
extending 1000m beyond the county boundary. WALTON: All LAS formatted LIDAR data are validated using commercial GIS software
to ensure proper formatting and loading before delivery. This validation procedure ensures that data on delivery media is
in correct physical format and is readable.
organisation Name
DOC/NOAA/NOS/OCM > Office for Coastal Management, National Ocean Service, National Oceanic and Atmospheric Administration,
U.S. Department of Commerce
Contact information
Telephone
Voice 843-740-1200
Address
2234 South Hobson Ave., Charleston, SC, 29405-2413
Ordering Instructions
The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data
if it cannot be obtained from NOAA Coastal Services Center.
Distributor
distributor contact
-
distributor
individual Name Mike Sutherland
organisation Name
DOC/NOAA/NESDIS/NCEI > National Centers of Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
325 Broadway E/GC1, Boulder, CO, 80305-3328
Country USA
Ordering Instructions
The National Geophysical Data Center serves as the archive for this LIDAR dataset. NGDC should only be contacted for the data
if it cannot be obtained from NOAA Coastal Services Center.
notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2013-01-04 version of the FGDC RSE to ISO 19115-2 for LiDAR transform.
notes: Translated from FGDC 2013-06-11T15:16:38.659-06:00
notes: Last Metadata Review Date: 2008-05-22
Metadata contact
-
author
individual Name Mike Sutherland
organisation Name
DOC/NOAA/NESDIS/NCEI > National Centers of Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
325 Broadway E/GC1, Boulder, CO, 80305-3328
Country USA