The flash flood guidance system (FFGS) was designed and developed by the Hydrologic Research Center, a non-profit public-benefit corporation located in San Diego, CA, US, for use by meteorological and hydrologic forecasters throughout the world. The primary purpose of the FFGS is to provide operational forecasters and disaster management agencies with real-time information pertaining to the threat of small-scale flash flooding throughout a specified region.[1][2][3][4]
The FFGS provides flood warnings based on remote-sensed precipitation (e.g., radar and satellite-based rainfall estimates) and hydrologic models.[3][4][5] It supports the analysis of weather-related events that can initiate flash floods (e.g., heavy rainfall, rainfall on saturated soils) and incorporates adjustments based on local weather information. The system supports evaluations of the threat of flash flooding over hourly to six-hourly time scales for stream basins that range in size from 25 to 200 km2 in size.[4][6]
^Stewart, B. (2007) Implementation of a flash flood guidance system with global coverage, A joint proposal by WMO Commission for Hydrology and WMO Commission for Basic Systems, April 2007, [online]. http://www.hrc-lab.org/giving/givingpdfs/WMOProspectus_April-2007.pdf.
^Georgakakos, K.P. (2005) Modern Operational Flash Flood Warning Systems Based on Flash Flood Guidance Theory: Performance Evaluation. Proceedings, International Conference on Innovation, Advances and Implementation of Flood Forecasting Technology, 9–13 October 2005, Bergen-Tromsø, Norway, pp. 1-10.
^ abGeorgakakos, K.P. (2006) Analytical Results for Operational Flash Flood Guidance,” Journal of Hydrology,317, 81-103.
^ abcNational Oceanic and Atmospheric Administration (2010) Flash Flood Early Warning System Reference Guide. University Corporation for Atmospheric Research, Denver. http://www.meted.ucar.edu/hazwarnsys/haz_fflood.php Archived 2010-07-11 at the Wayback Machine.
^World Meteorological Organization, Global Flash Flood Guidance and Early Warning Programme Partnership (2013) (www.wmo.int/pages/.../GFFG_Partners_Brochure_29-01-13_RG_1.pdf?)
^Shamir, E., Ben-Moshe, L., Ronen, A., Grodek, T., Enzel, Y., Georgakakos, K.P., Morin, E. (2012) Geomorphology-Based Index for detecting minimal flood stages in arid alluvial streams. Hydrology and Earth System Sciences Discussion, 9(11) :12357-12394
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