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Spatial and Temporal Characteristics of Heavy Hourly Rainfall in the United States

Spatial and Temporal Characteristics of Heavy Hourly Rainfall in the United States The climatology of heavy rain events from hourly precipitation observations by Brooks and Stensrud is revisited in this study using two high-resolution precipitation datasets that incorporate both gauge observations and radar estimates. Analyses show a seasonal cycle of heavy rain events originating along the Gulf Coast and expanding across the eastern two-thirds of the United States by the summer, comparing well to previous findings. The frequency of extreme events is estimated, and may provide improvements over prior results due to both the increased spatial resolution of these data and improved techniques used in the estimation. The diurnal cycle of heavy rainfall is also examined, showing distinct differences in the strength of the cycle between seasons. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Monthly Weather Review American Meteorological Society

Spatial and Temporal Characteristics of Heavy Hourly Rainfall in the United States

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Publisher
American Meteorological Society
Copyright
Copyright © 2012 American Meteorological Society
ISSN
0027-0644
eISSN
1520-0493
DOI
10.1175/MWR-D-12-00297.1
Publisher site
See Article on Publisher Site

Abstract

The climatology of heavy rain events from hourly precipitation observations by Brooks and Stensrud is revisited in this study using two high-resolution precipitation datasets that incorporate both gauge observations and radar estimates. Analyses show a seasonal cycle of heavy rain events originating along the Gulf Coast and expanding across the eastern two-thirds of the United States by the summer, comparing well to previous findings. The frequency of extreme events is estimated, and may provide improvements over prior results due to both the increased spatial resolution of these data and improved techniques used in the estimation. The diurnal cycle of heavy rainfall is also examined, showing distinct differences in the strength of the cycle between seasons.

Journal

Monthly Weather ReviewAmerican Meteorological Society

Published: Oct 9, 2012

References