Difference between revisions of "Rainfall frequency maps"
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Atlas 14 precipitation frequency information can be found on [http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_map_cont.html?bkmrk=mn NOAA's precipitation frequency data server. | Atlas 14 precipitation frequency information can be found on [http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_map_cont.html?bkmrk=mn NOAA's precipitation frequency data server. | ||
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| + | This page provides the following information on rainfall frequency distributions for Minnesota using [http://www.nws.noaa.gov/oh/hdsc/PF_documents/TechnicalPaper_No40.pdf Technical Paper 40]. | ||
*Rainfall frequency curves for the 1, 2, 5, 10, 25, 50, and 100 year 24-hour rainfall events for Minnesota. The source of the data is Technical Paper 40 ([http://www.nws.noaa.gov/oh/hdsc/PF_documents/TechnicalPaper_No40.pdf National Oceanic and Atmospheric Administration]) | *Rainfall frequency curves for the 1, 2, 5, 10, 25, 50, and 100 year 24-hour rainfall events for Minnesota. The source of the data is Technical Paper 40 ([http://www.nws.noaa.gov/oh/hdsc/PF_documents/TechnicalPaper_No40.pdf National Oceanic and Atmospheric Administration]) | ||
Revision as of 20:01, 18 June 2013
Information: Precipitation frequency information is being updated by the National Oceanograpic and Atmospheris Administration (NOAA). The Minnesota Stormwater Manual will eventually be updated using Atlas 14 information.
Atlas 14 precipitation frequency information can be found on [http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_map_cont.html?bkmrk=mn NOAA's precipitation frequency data server.
This page provides the following information on rainfall frequency distributions for Minnesota using Technical Paper 40.
- Rainfall frequency curves for the 1, 2, 5, 10, 25, 50, and 100 year 24-hour rainfall events for Minnesota. The source of the data is Technical Paper 40 (National Oceanic and Atmospheric Administration)
- Rainfall frequency and volume percentiles as a function of precipitation depth for ten locations in Minnesota. Rainfall frequency specifies the number of 24-hour rain events, expressed as a percent of all events, that are less than a certain depth. Volume represents the total annual volume of rain that is associated with a particular rain depth. For example, 88 percent of rain events in Cloquet are 1 inch or less, while rain events of one inch or less account for 60 percent of the annual volume.
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