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

被引：55

作者：

Hitchens, Nathan M. ^{[1
]}

Brooks, Harold E. ^{[1
]}

Schumacher, Russ S. ^{[2
]}

机构：

[1] NOAA, OAR, Natl Severe Storms Lab, Norman, OK USA

[2] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA

来源：

MONTHLY WEATHER REVIEW | 2013年 / 141卷 / 12期

基金：

美国国家科学基金会;

关键词：

Extreme events; Precipitation; Rainfall; Climatology; PRECIPITATION; QPE;

D O I：

10.1175/MWR-D-12-00297.1

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

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.

引用

页码：4564 / 4575

页数：12