2007 - 2008 Florida Division of Emergency Management (FDEM) Lidar Project: Blocks 1 - 10 (Southeast Florida and Keys)

Dataset Identification:

Resource Abstract:
This Light Detection and Ranging (LiDAR) LAS dataset is a topographic survey conducted for the State of Florida Division of Emergency Management LiDAR Project. These data were produced for the Florida Division of Emergency Management. The LiDAR point cloud was flown at a density sufficient to support a maximum final post spacing of 4 feet for unobscured areas. 3001 Inc. acquired the data from July 12, 2007 through February 8, 2008. The data was divided into 5000' by 5000' cells that serve as the final tiling scheme. The State of Florida Division of Emergency Management LiDAR Survey was collected under the guidance of a Professional Mapper/Surveyor.
Citation
Title 2007 - 2008 Florida Division of Emergency Management (FDEM) Lidar Project: Blocks 1 - 10 (Southeast Florida and Keys)
publication  Date   2009-01-01
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
electronic Mail Address coastal.info@noaa.gov
Linkage for online resource
URL: http://coast.noaa.gov
cited responsible party - originator
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
cited responsible party - publisher
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
Linkage for online resource
URL: http://coast.noaa.gov
Topic Category:  elevation
Keywords:
Theme keywords (theme):
Bathymetry/Topography
Contour
DEM
DSM
DTM
Elevation
Height
Photogrammetry
Planimetric
TIN
Stereo Photogrammetry
LAS V.1.1 LiDAR
thesaurus name >
Title None
Location keywords:
US
Florida
St. Lucie County
Martin County
Palm Beach County
Broward County
Miami-Dade County
Monroe County
Florida Keys
Miami
Key West
thesaurus name >
Title None
purpose:
The State of Florida Division of Emergency Management LiDAR Project 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. The State of Florida Division of Emergency Management LiDAR Survey was collected under the guidance of a Licensed and Professional Surveyor/Mapper.
Browse image (thumbnail):
thumbnail file name:  ...
file type: zip
thumbnail file description:  The data were organized into 10 blocks. The 'block index' shapefile shows the extent of each constituent block for the 2007 FDEM Southeast Florida and Florida Keys lidar data set.
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  -81.817534
eastBoundLongitude  -80.021117
northBoundLatitude  27.565112
southBoundLatitude  24.537523
Temporal Extent
2007-07-12 2008-02-08
Credits:
Acknowledgement of Florida Division of Emergency Management would be appreciated in products derived from these data.
point of contact - pointOfContact
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
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Vector spatial representation information

Geometric Objects
geometric Object Type  point
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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.
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reference system 2

Reference System Identifier
Identifier string: Ellipsoid in Meters
Identifier code space:  Local Vertical Reference
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Scope of quality information
scope level  dataset
Resource lineage description
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description  All ground control processing and adjustment was performed using published coordinate horizontal and vertical datums (e.g. NGS CORS). For deliverables, Corpscon for Windows Version 5.11.08 (geoid 03) was used for horizontal and vertical datum conversion as well as for coordinate system conversion purposes (e.g. UTM to State Plane). The horizontal accuracy baseline spec was for the data to meet or exceed a 3.8 ft horizontal accuracy at the 95% confidence level using RMSE(r) X 1.7308 as defined by the FGDC Geospatial Positioning Accuracy Standards, Part 3: NSSDA. The horizontal accuracies for each block were tested. To obtain the tested horizontal accuracy, please refer to the Survey Report for each block, which may be accessed at: Block 1: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_1/ Block 2: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_2/ Block 3: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_3/ Block 4: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_4/ Block 5: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_5/ Block 6: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_6/ Block 7: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_7/ Block 8: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_8/ Block 9: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_9/ Block 10: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_10/ To determine which block or blocks are in your area of interest, download ch2mhill_block_index_shapefile.zip at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description  The accuracy assessment was performed using a standard method to compute the root mean square error (RMSE) based on a comparison of ground control points (GCP) and filtered LiDAR data points. Filtered LiDAR data has had vegetation and cultural features removed and by analysis represents bare-earth elevations. The RMSE figure was used to compute the vertical National Standard for Spatial Data Accuracy (NSSDA). Ground control was established by 3001, Inc. A spatial proximity analysis was used to select edited LiDAR data points contiguous to the relevant GCPs. A search radius decision rule is applied with consideration of terrain complexity, cumulative error and adequate sample size. Cumulative error results from the errors inherent in the various sources of horizontal measurement. These sources include the airborne GPS, GCPs and the uncertainty of the accuracy of the LiDAR data points. This accuracy is achieved prior to the sub-sampling that occurs through integration with the inertial measurement unit (IMU) positions that are recorded. It is unclear at this time whether the initial accuracy is maintained. The horizontal accuracy of the GCPs is estimated to be in the range of approximately 1 to 1.6 inches. Finally, sample size was considered. The specification for the National Standard for Spatial Data Accuracy is a minimum of 20 points to conduct a statistically significant accuracy evaluation (Minnesota Planning, 1999, Positional Accuracy Handbook, Minnesota Planning Land Management Information Center, St. Paul, Minnesota., p.3). Most statistical texts indicate that a minimum of 30 sample points provide a reasonable Approximation of a normal distribution. The intent of the NSSDA is to reflect the geographic area of interest and the distribution of error in the data set (Federal Geographic Data Committee, 1998, Geospatial National Standard for Spatial Data Accuracy, Federal Geographic Data Committee Secretariat, Reston, Virginia, p.3-4). Additional steps were taken to ensure the vertical accuracy of the LiDAR data including: Step 1: Precision Bore sighting (Check Edge-matching) Step 2: Compare the LiDAR data to the Field Survey (Field survey is to FEMA specifications and more stringent internal specifications) Step 3: Automated Filtering Step 4: Manual Editing (Quality Control) Step 5: 3-D digitizing and Photogrammetric Compilation of hydrographic breaklines. The vertical accuracy baseline spec was for the data to meet a fundamental vertical accuracy of 0.60 ft at the 95% confidence level using RMSE(z) X 1.9600 (as defined by the ASPRS Guidelines: Vertical Accuracy Reporting for Lidar Data"). The vertical accuracies for each block were tested. To obtain the tested vertical accuracy, please refer to the Survey or Vertical Accuracy Report for each block, which may be accessed at: Block 1: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_1/ Block 2: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_2/ Block 3: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_3/ Block 4: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_4/ Block 5: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_5/ Block 6: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_6/ Block 7: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_7/ Block 8: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_8/ Block 9: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_9/ Block 10: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/block_10/ To determine which block or blocks are in your area of interest, download ch2mhill_block_index_shapefile.zip at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/fdem/ch2mhill/
Completeness Commission
evaluation Method Description  The LAS files were flown at a density sufficient to support a maximum final post spacing of 4 feet 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.
ConceptualConsistency
measure Description  The Light Detection and Ranging (LiDAR) LAS dataset is a topographic survey conducted for the State of Florida Division of Emergency Management LiDAR Project. These data were produced for Florida Division of Emergency Management. The LiDAR point cloud was flown at a density sufficient to support a maximum final post spacing of 4 feet for unobscured areas. 3001 Inc. acquired the data from July 12, 2007 through February 8, 2008. The data was divided into 5000' by 5000' cells that serve as the final tiling scheme. The State of Florida Division of Emergency Management LiDAR Survey was collected under the guidance of a Professional Mapper/Surveyor.

Resource distribution information

Distributor
distributor contact - 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
Linkage for online resource
URL: http://coast.noaa.gov
Standard ordering process
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/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
NOAA/NESDIS/NGDC E/GC1 325 Broadway, Boulder, CO, 80305-3328 Country USA
electronic Mail Address mike.sutherland@noaa.gov
hoursOfService 7:30am-5:00pm Mountain
Standard ordering process
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
Format name LAZ
Format version 

Metadata data stamp:  2013-06-07
Resource Maintenance Information
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 2013-06-07T12:41:42.279-06:00
notes: Last Metadata Review Date: 2011-11-19
Metadata contact - author
individual Name Mike Sutherland
organisation Name  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact information
Telephone
Voice 303-497-6120
Fax 303-497-6513
Address
NOAA/NESDIS/NGDC E/GC1 325 Broadway, Boulder, CO, 80305-3328 Country USA
electronic Mail Address mike.sutherland@noaa.gov
hoursOfService 7:30am-5:00pm Mountain
Metadata scope code  dataset
Metadata language  eng; USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
standard version:  ISO 19115-2:2009(E)
Metadata record identifier:  gov.noaa.csc.maps:2007_FDEM_South_m520

Metadata record format is ISO19139-2 XML (MI_Metadata)