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环境学院发展报告

variables with the

short-duration intense rainfall (SDIR) events
are examined for the Beijing urban areas by

applying hourly data of a high-density automatic
weather station (AWS) network. Higher frequencies

(amounts) of the SDIR events are found in or
near the central urban area, and most of the SDIR

events begin to appear in late evening and nighttime,
but tend to end in late night and early morning.

Correlations of the UHII with the SDIR frequency
(amount) are all highly significant

for more than 3 h ahead of the beginning of the
SDIR events. Although the UHII at immediate

hours (< 3 h) before the SDIR occurrence is more
indicative of SDIR events, their occurrence more

depends on the magnitude of the UHII at earlier hours. The UHII before the beginning of the
SDIR events also shows high-value centers in the central urban area, which is generally consistent

with the distribution of the SDIR events. The spatial and temporal patterns of regional
SDIR events exhibit similar characteristics to the site-based SDIR events and also show a good

relationship with the UHII in the urban areas. In addition to the UHII over the urban areas,
surface air temperature, surface air pressure, relative humidity, and near-surface wind directions at

the
Beijing station experience large changes before and after the beginning time of regional

SDIR events, and have the potential to indicate the occurrence of SDIR events in the
studied area.

论文链接：https://doi.org/10.1175/JCLI-D-16-0671.1

21.The impact of tropical cyclones on extreme precipitation over coastal and inland
areas of China and its association to the ENSO
作 者 : Zhang Qiang； Gu Xihui*；Li Jianfeng；Shi Peijun；Singh Vijay P.

JOURNAL OF CLIMATE 卷 : 31 期 : 5 页 : 1865-1880 出版年 : MAR 2018

摘 要：The coastal part of China and its surrounding regions are dominated by a highly
dense population and highly developed economy. Extreme precipitationevents (EPEs) cause

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