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Precipitation Frequency Atlas of the Western United States


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            title:  Precipitation Frequency Atlas of the Western United States
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                date:  1973-01-01
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                code:  NCEI Physical Archive Collection: PRFREQ
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                code:  gov.noaa.ncdc:C00238
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        abstract:  The Precipitation Frequency of the Western United States publication is an eleven volume set held in the archives. It was the culmination of many years of investigation and was based all of the previous work on precipitation- frequency studies until that time. It also replaced U.S. Weather Bureau Technical Paper No. 40 for the eleven western states. The states/volumes are: 1 Montana 2 Wyoming 3 Colorado 4 New Mexico 5 Idaho 6 Utah 7 Nevada 8 Arizona 9 Washington 10 Oregon 11 California Each volume is organized into three parts. The first section discusses the historical background, procedures, and methods used in preparing the maps and how to interpret and use them. The second discusses ideas that are applicable only to the particular U.S. state considered in that volume. Included in this section are methods (monograms and equations) useful for estimating precipitation-frequency values for durations other than 6 and 24 hours. The last part of the atlas presents isopluvial maps for the 6 and 24 hour durations for return periods of 2, 5, 10, 25, 50, and 100 years.
        purpose:  To provide precipitation frequency information in the climatologically diverse western United States, where average precipitation amounts vary widely.
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        language:  eng; USA
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                    description:  ground condition
                    beginPosition:  1900-01-01
                    endPosition:  1973-01-01
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            statement:  The atlas was prepared and published by the U.S. National Weather Service.
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                description:  NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
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                  DateTime:  2015-04-22T00:00:00
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        maintenanceNote:  Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.