Changes of extreme events in regional climate simulations over East Asia

• Published in: Advances in atmospheric sciences Vol. 19; no. 5; pp. 927 - 942
• Main Authors: Xuejie, Gao, Zongci, Zhao, Giorgi, Filippo
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Nature B.V 01.09.2002
• Subjects: Atmospheric models; Climate; Ocean-atmosphere interaction; Precipitation
• ISSN: 0256-1530; 1861-9533
• DOI: 10.1007/s00376-002-0056-2

Changes of extreme events due to greenhouse effects (2 × CO^sub 2^) over East Asia, with a focus on the China region as simulated by a regional climate model (RegCM2), are investigated. The model is nested to a global coupled ocean-atmosphere model (CSIRO R21L9 AOGCM). Analysis of the control run of the regional model indicates that it can reproduce well the extreme events in China. Statistically significant changes of the events are analyzed. Results show that both daily maximum and daily minimum temperature increase in 2 × CO^sub 2^ conditions, while the diurnal temperature range decreases. The number of hot spell days increases while the number of cold spell days decreases. The number of rainy days and heavy rain days increases over some sub-regions of China. The 2 × CO^sub 2^ conditions also cause some changes in the tropical storms affecting China.[PUBLICATION ABSTRACT]