Abstract
Life Cycle of a Topographic LiDAR Project Supporting FEMA Map Modernization Track: Database Design, Automation, and Management Author(s): Steven Dicks, Chris O'Neill This presentation is based on a 2005 FEMA Map Modernization Project undertaken by the Southwest Florida Water Management District over the Peace River Water Basin, approximately 1,149 square miles, in Polk County, Florida, utilizing a large-format, multispectral scanner and a LiDAR system to develop high accuracy digital orthophoto imagery and terrain modeling. This presentation will outline the objectives of the Southwest Florida Water Management District's map modernization and surface water modeling efforts: how the LiDAR specifications were developed; how LiDAR data and vector data (3D breaklines as ArcSHAPE format polylineZ) are integrated within the ArcInfo environment; how the terrain surface is defined using breakline and LiDAR data within the GIS environment; how the surface is visualized using 3D Analyst, quality assurance and quality control procedures applied to the digital map data; and data management issues associated with large volumes of terrain information using the terrain geodatabase model. Steven Dicks Southwest Florida Water Management District Mapping and GIS Section 2379 Broad St. (US 41) Brooksville , FL 34609 US Phone: 352.796.7211 Fax: 352.540.6018 E-mail: steve.dicks@swfwmd.state.fl.us Chris O'Neill Woolpert, Inc. Photogrammetry One Purlieu Place, Ste. 295 Orlando , FL 32792 US Phone: 407.671.8004 E-mail: chris.oneill@woolpert.com |
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