Flood Information Tool: User Manual   [open pdf - 6MB]

"The flood loss estimation methodology consists of two basic analytical processes: flood hazard analysis and flood loss estimation analysis. Flood hazards in the FIT are divided into riverine and coastal. In the riverine hazard module, characteristics such as frequency, discharge, and terrain elevation are used to model the spatial variation in flood elevation and flood depth. In the coastal hazard module, characteristics such as frequency, stillwater elevations, wave conditions, and terrain information are used to model the spatial variation in flood-induced erosion, flood elevation, and flood depth. The Flood Information Tool (FIT) is an ArcGIS extension designed to process user-supplied flood hazard data into the format required by the HAZUS-MH Flood Model. The FIT, when given usersupplied inputs (e.g., ground elevations, flood elevations, and floodplain boundary information), computes the extent, depth and elevation of flooding for riverine and coastal hazards. An overall schematic of the FIT is provided in Figure 1-1 showing some of the types of data input that users may have and the FIT output (depth of flooding). See Appendix A for information regarding conversion methods for the various types of input data. The FIT stores data in a format and file structure (Appendix B) readily accessible by the HAZUS-MH Flood Model. Use of the FIT ensures the projection and map units of the data meet the HAZUS-MH Flood Model requirements and allows the user to import the data without additional manipulation."

Public Domain
Retrieved From:
United States. Federal Emergency Management Agency: http://www.fema.gov/
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