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2006 Volusia County, Florida Lidar

This dataset is the lidar data for Volusia County, Florida, approximately 1,432 square miles, acquired in early March of 2006. A total of 143 flight lines of Lidar data were acquired in eleven sessions between 2-8 March 2006. This dataset is comprised of 1,591 LiDAR files, based on the Volusia County 5,000' by 5,000' sheet index system, in the LAS file format. The raw data was collected at an average ground sample distance of 1-meter (3.3 ft), and the bare earth was classified and used as a basis for the 2006 Volusia Countywide Digital Orthophoto Project. Lidar was collected to support DTM development suitable to generate 1 foot contours that meet 2 foot contour accuracy specifications. This data is not intended for engineering, design, water modeling, or any other purposes other than as stated within this document. This data is intended for orthophoto rectification purposes only. The lidar data classifications in this data set are: unclassified, ground and high vegetation. NOTE: Please be aware that there are returns from the water surface that are classified as ground, as well as unclassified.

Cite this dataset when used as a source.

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    Distribution Formats
    • LAZ
    Distributor Distributor information not available
    Point of Contact Arden Fontaine
    Volusia County Public Works Department
    Associated Resources
    • Lidar Final Report
    • Volusia County Public Works Department
      • publication: 2006-08-15
      Data Presentation Form: Digital image
      Dataset Progress Status Complete
      Data Update Frequency: As needed
      Purpose: The DEM was developed to support the 2006 Volusia Countywide Digital Orthophoto Imagery Project.
      Time Period: 2006-03-02  to  2006-03-08
      Spatial Reference System:
      Spatial Bounding Box Coordinates:
      N: 29.426977
      S: 28.612988
      E: -80.733305
      W: -81.680128
      Spatial Coverage Map:
      • Bathymetry/Topography
      • LiDAR
      • Terrain
      • Model
      • Elevation
      • Surface
      • Laser
      • US
      • Florida
      • Volusia County
      Use Constraints No constraint information available
      Fees Fee information not available.
      Lineage Statement Lineage statement not available.
      • Woolpert, Inc.
      • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
      Processing Steps
      • The LiDAR data was acquired using a Leica ALS50 from an altitude of 1,000-meters above ground level to provide an average ground sample distance of 1-meter. The scanner field of view was 44-degrees, and the scan rate was 33-hertz. First and last return data was collected along with the signal return intensity. Two redundant airborne GPS bases stations were utilized during the data acquisition with maximum line-of-sight distance between the base station and aircraft of 20-km. The LiDAR data was reduced using Grafnav (Waypoint Consulting) for GPS post-processing, PosProc (Applanix Crop) for IMU processing, ALS50 Post Processor (LH Systems) to initial LiDAR processing, TerraScan (Terrasolid) for initial point classification, and proprietary Woolpert developed software for refining the point classification and QC. The LAS files contain 3 classifications: 1 = default which contains non ground features such as buildings, cars, trees, bridges, etc.; 2 = bare earth; and 5 = non ground from first return which contains trees, power lines, etc..
      • The NOAA Coastal Services Center (CSC) received the files in LAS format. The files contained Lidar intensity and elevation measurements. The data was in Florida State Plane Projection and NAVD88 vertical datum. CSC performed the following processing to the data to make it available within the LDART Retrieval Tool (LDART): 1. The data were converted from Florida State Plane East, Zone 0901 coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03. 3. The vertical unit of measure for the data was converted from feet to meters. 4. The LAS data were sorted by latitude and the headers were updated.
      • 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 The data can be used to re-populate the system. The data are archived in LAS or LAZ format. 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 of LAS developed by Martin Isenburg ( The data are exclusively in geographic coordinates (either NAD83 or ITRF94). The data are referenced vertically to 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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