• 论文 •

季节变化对全球气候变化的响应——以湖北省为例

1. 1. 中国气象局武汉暴雨研究所, 湖北 武汉 4300741;
2. 武汉区域气候中心, 湖北 武汉 430074
• 收稿日期:2009-03-23 修回日期:2009-07-09 出版日期:2009-11-20 发布日期:2009-11-20
• 作者简介:陈正洪(1964- ),男,湖北大冶人,研究员,主要研究方向为应用气象、气候变化。E-mail:chenzh64@126.com
• 基金资助:
国家科技支撑计划资助课题(2007BAC03A01)、武汉区域气象中心科技发展基金重点资助项目(QY-Z-200701、QY-Z-200807)资助。

Responses of Changing of Climatic Seasons to Global Warming:A case of Hubei Province in Central China

CHEN Zheng-hong1,2, SHI Rui-qin2, CHEN Bo1

1. 1. Wuhan Institute of Heavy Rain, Chinese Meteorological Administration, Wuhan, Hubei 430074;
2. Wuhan Regional Climate Center, Wuhan , Hubei 430074
• Received:2009-03-23 Revised:2009-07-09 Online:2009-11-20 Published:2009-11-20

Abstract: In the last 100 yr especially in the last 50 yr, the earth is getting warmer in most part of the world and China, which leads climatic belts moving northward and higher, and the change of the phenological period and growing season.The changing of climatic seasons are also observed in some parts of China.The climatic seasons are adopted that means the 5 d-moving averaged temperature ≤10.0℃ as winter, ≥22.0℃ as summer, and 10.0-22.0℃ as spring or autumn.For revealing the responding mode and degree of climatic seasons to global warming systematically, the daily average temperature of 10 representative meteorological stations in Hubei Province during 1951-2006 are used to calculate and analyze the elemental properties and changing trends of beginning dates and lengths of four seasons.The results show that:1) The provincially averaged beginning dates in spring, summer, autumn and winter are respectively Mar.22, May 27, Sept.27, and Nov.27, and the averaged length is 65.7 d, 122.8 d, 60.9 d and 115.6 d, respectively, and their spatial and inter-annual variations are obvious.2) In last 56 yr, the provincially averaged beginning dates of spring and summer were advanced for 2.8 d and 1.6 d, respectively, and those of autumn and winter were delayed for 4.0 d and 6.1 d respectively, and only that of the winter was changing significantly, which means the seasons in the first half of a year were getting earlier, and the seasons in the second half of a year were getting later with more significant change.The extreme examples included 9.7 d advanced for spring in Wuhan in 56 yr, 6.7 d advanced for summer in Macheng in 48yr, 15.0 d delayed for autumn in Jingzhou in 54 yr, 11.4 d delayed for Macheng in 48 yr.3) In last 56 yr, the provincially averaged length of winter was shortened for 8.9 d, those of summer and autumn were prolonged for 6.3 d, 2.0 d, respectively, and that of spring varies little.That means more change in winter and summer than in spring and autumn.The extreme examples included 21.1 d prolonged for summer in Jingzhou in 53 yr, 17.0 d shortened for winter in Wuhan in 56 yr.4)There were larger change of climatic seasons in the eastern and middle parts of Hubei Province due to larger warming effect,while lighter change of climatic seasons in the western mountainous area corresponding to little warming effect.And also larger change in climatic seasons in the urban area of the larger cities such as Wuhan were observed.It is obvious that the climatic seasons show some distinct variations or trends in Hubei Province, that will affect agricultural activity, crop growing, even our daily life such as outgoing, dressing, shopping and selling and so on.Some countermeasures must be taken as soon as possible.

• P461+3