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Ten-Year Climatology of Summertime Diurnal Rainfall Rate Over the Conterminous U.S.Diurnal cycles of summertime rainfall rates are examined over the conterminous United States, using radar-gauge assimilated hourly rainfall data. As in earlier studies, rainfall diurnal composites show a well-defined region of rainfall propagation over the Great Plains and an afternoon maximum area over the south and eastern portion of the United States. Zonal phase speeds of rainfall in three different small domains are estimated, and rainfall propagation speeds are compared with background zonal wind speeds. Unique rainfall propagation speeds in three different regions can be explained by the evolution of latent-heat theory linked to the convective available potential energy, than by gust-front induced or gravity wave propagation mechanisms.
Document ID
20100026453
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Matsui, Toshihisa
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mocko, David
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lee, Myong-In
(Ulsan National Inst. of Science and Technology Ulsan, Korea, Republic of)
Tao, Wei-Kuo
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Suarez, Max J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pielke, Roger A., Sr.
(Colorado Univ. Boulder, CO, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2010
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Public Use Permitted.
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