Dataset Identification:
- This Light Detection and Ranging (LiDAR) LAS dataset is a topographic survey conducted for a coalition of GIS practitioners, including the Florida Division of Emergency Management (FDEM), Florida Water Management Districts, Florida Fish and Wildlife Conservation Commission, Florida Department of Environmental Protection, Army Corps of Engineers Jacksonville District, and other state and federal agencies. The goal for this project is to use the LiDAR data as new elevation inputs for updated SLOSH data grids. The ultimate result is the update of the Regional Hurricane Evacuation Studies (RHES) for the state. The State of Florida Division of Emergency Management LiDAR Survey was collected under the guidance of a Professional Mapper/Surveyor. Data were collected for 185 square miles in the coastal (southern) part of Jefferson County, Florida from July 18 - 20, 2007. This is a classified lidar data set. The data are classified: 1 = Unclassified, 2 = Ground (Bare Earth), 7 = Noise and 9 = Water. The FDEM Baseline Specifications required a maximum post spacing of 4 feet, however, the PDS (Program and Data Solutions) team required a much higher point density of its subcontractors in order to increase the probability of penetrating dense foliage during the mandated summer acquisition; with nominal post spacing of 0.7 meters per flight line and 50% sidelap between flight lines, the average point density is 4 points per square meter.
- Title 2007 Florida Division of Emergency Management (FDEM) Lidar Project: Coastal Jefferson County
- publication Date 2008-05-05
- 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
- electronic Mail Address coastal.info@noaa.gov
- organisation Name Florida Division of Emergency Management (FDEM)
- Contact information
-
- Telephone
-
- Voice 850-413-9969
- Address
-
- 2555 Shumard Oak Boulevard, Tallahassee, FL, 32399-2100 Country USA
- 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
- electronic Mail Address coastal.info@noaa.gov
Theme keywords (theme):
Bathymetry/Topography
DTM
Elevation
Lidar
- Title None
Location keywords:
United States
Florida
Jefferson County
- Title None
Theme keywords (theme):
- Title Activity > Observation
- publication Date 2017-08-24
Theme keywords (theme):
- Title Resource Type > Document
- publication Date 2017-08-24
Theme keywords (theme):
- Title Material > Chemical
- publication Date 2017-08-24
Theme keywords (theme):
- Title Method > Information Processing
- publication Date 2017-08-24
Theme keywords (theme):
- Title Virtual International Authority File (VIAF) Corporate Names
- publication Date 2017-08-24
Theme keywords (theme):
- Title Property > Measure
- publication Date 2017-08-24
Theme keywords (theme):
- Title Material > Environmental Material
- publication Date 2017-08-24
Theme keywords (theme):
- Title Feature > Physiographic Feature
- publication Date 2017-08-24
Theme keywords (theme):
- Title Resource Type > Specification
- publication Date 2017-08-24
purpose:
Browse image (thumbnail):
- maintenance or update frequency: asNeeded
- 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.
- 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.
Resource extent
-
- westBoundLongitude -84.084223
- eastBoundLongitude -83.829313
- northBoundLatitude 30.374197
- southBoundLatitude 30.081871
Geographic Bounding Box - Temporal Extent
Geographic Extent
2007-07-18
2007-07-20
- organisation Name Florida Division of Emergency Management (FDEM)
- Contact information
-
- Telephone
-
- Voice 850-413-9969
- Address
-
- 2555 Shumard Oak Boulevard, Tallahassee, FL, 32399-2100 Country USA
Vector spatial representation information
-
- Geometric Objects
-
- geometric Object Type point
reference system 1
- Reference System Identifier
- Identifier string: urn:ogc:def:crs:EPSG::4269
- authority
-
- Title North American Datum 1983
- alternateTitle NAD83
- revision Date 2007-01-19
- cited responsible party - resourceProvider
-
- organisation Name
- Contact information
-
- Linkage for online resource
-
- name NAD83
- URL: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
- link function information
- Description Link to Geographic Markup Language (GML) description of reference system.
- cited responsible party - publisher
-
- organisation Name European Petroleum Survey Group
- Contact information
-
- Linkage for online resource
-
- name European Petroleum Survey Group Geodetic Parameter Registry
- URL: http://www.epsg-registry.org/
- link function search
- Description Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
reference system 2
- Reference System Identifier
- Identifier string: Ellipsoid in Meters
- Identifier code space: Local Vertical Reference
Data quality information
Scope of quality information
- source
-
- source description Source Contribution: LiDAR dataset was used to create intensity stereopairs for 3D breakline compilation and for contour generation.Source Type: online
- source citation
-
- Title Lidar
- publication Date 2008-05-01
- presentationForm mapDigital
- other Citation Details LiDAR Survey of Jefferson County, Florida, conducted in the summer of 2007 under a contract of Dewberry & Davis, LLC in support of the Florida Division of Emergency Management.
- cited responsible party - originator
-
- organisation Name SANBORN MAP COMPANY
Resource extent
- Temporal Extent
2007-07-18
2007-07-20
- name Of Measure Horizontal Positional Accuracy Report
- evaluation Method Description Lidar source compiled to meet 1 m horizontal accuracy.
- name Of Measure Horizontal Positional Accuracy
- measure Description The PDS team does not perform independent horizontal accuracy testing on the LiDAR. LiDAR vendors perform calibrations on the LiDAR sensor and compare data to adjoining flight lines to ensure LiDAR meets the 1 meter horizontal accuracy standard at the 95% confidence level.
- Quantitative Result
-
- result value 1
- value Units
-
- name Of Measure Vertical Positional Accuracy Report
- evaluation Method Description The LiDAR is required to meet 0.60 feet (0.18 m) Fundamental Vertical Accuracy (FVA) and 1.19 feet (0.36 m) Consolidated Vertical Accuracy (CVA).
- name Of Measure Vertical Positional Accuracy
- measure Description Based on the vertical accuracy testing conducted by PDS, using NSSDA and FEMA methodology, vertical accuracy at the 95% confidence level (called Accuracyz) is computed by the formula RMSEz x 1.9600. The dataset for Jefferson County, Florida satisfies the criteria: Countywide lidar dataset tested 0.48 ft (0.15 m) FVA at 95% confidence level in open terrain, based on open terrain RMSEz (0.24 ft) x 1.9600. Countywide lidar dataset tested 0.51 ft (0.16 m) CVA at 95% confidence level in all land cover categories combined, based on consolidated RMSEz (0.26 ft) x 1.9600.
- Quantitative Result
-
- result value 0.15
- value Units
-
- evaluation Method Description A visual qualitative assessment was performed in the source Lidar dataset. Small intensity anomalies corresponding to false depressions in the ground data were found in 0.43 sq. miles of the data. While these intensity anomalies and false depressions impacted a small geographic extent of the data, do not render the data unusable and are within the acceptable percentage of vertical errors allowed by the project specifications, these anomalies could still visually be seen in the data. To effectively remove the false depressions from the bare-earth data, ground points representing the false depression were reclassified from class 2 to class 7 and good ground points were reclassified from class 1 to class 2 when present in overlap data.
- measure Description Data covers the tile scheme provided for the county.
Resource distribution information
Distributor
- 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
- electronic Mail Address coastal.info@noaa.gov
- 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
- 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
- electronic Mail Address mike.sutherland@noaa.gov
- 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.
- Format name LAZ
- Format version
- date of next update: 2014-06-07
- maintenance or update frequency: annually
- 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 2013-06-07T12:41:35.418-06:00
- notes: Last Metadata Review Date: 2011-11-19
- 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
- electronic Mail Address mike.sutherland@noaa.gov