National Weather Service FLDWAV Computer Program
The FLDWAV program, developed by the National Weather Service (NWS), is a generalized flood routing program with the capability to model flows through a single stream or a system of interconnected waterways. FLDWAV, Version 1.0.0, released in November 1998, replaced the NWS generalized flood routing programs, DAMBRK (released in 1988) and DWOPER (released in 1984). The Federal Emergency Management Agency (FEMA) has accepted the FLDWAV program for use for National Flood Insurance Program (NFIP) purposes.
While DAMBRK has the ability to analyze the flow of a single stream, DWOPER has the additional capability to model flows through a system of interconnected waterways. In addition to the capabilities of DAMBRK and DWOPER, FLDWAV also has the ability to analyze flows in mixed-flow regimes. FLDWAV was created to execute in the DOS environment; however, FLDWAV may be run in UNIX workstations and mainframe computers with minimal changes to the source code, which is available at the NWS website. A menu-driven utility program, FLDGRF, is available to display output data generated by FLDWAV. An automatic calibration feature is available in FLDWAV, and the NWS states that to produce acceptable forecasts by FLDWAV, the model first must be calibrated to observed stages at gages within the study area.
Resources related to the FLDWAV program can be downloaded through the link below. These resources and an array of other useful FEMA, NFIP, and Map Mod resources are now located in the FEMA Library. To search for other resources in the FEMA Library, please click here.
National Weather Service FLDWAV Computer Program
View the complete listing of Numerical Models Accepted by FEMA for NFIP Usage.
Last Modified: Tuesday, 05-Feb-2008 13:53:35 EST