地表温度对太阳常数变化响应的数值试验研究
投稿时间:2004-06-07  修订日期:2004-11-09  点此下载全文
引用本文:
摘要点击次数: 473
全文下载次数: 482
作者单位
张虹娇 南京信息工程大学, 江苏省气象灾害重点实验室, 江苏, 南京210044 
朱伟军 南京信息工程大学, 江苏省气象灾害重点实验室, 江苏, 南京210044 
基金项目:江苏省气象灾害重点实验室资助项目(KLME050202);国家自然科学基金重点资助项目(40331010);江苏省普通高等学校“青蓝工程”中青年学术带头人资助项目
中文摘要:通过改变太阳常数,利用NCAR气候系统模式CSM1.4就地表温度对强外辐射强迫变化的响应及性质进行了研究。结果表明:虽然局地的增温幅度变化很大,但各试验的全球增温分布特征非常相似,并从一定程度上反映了全球增暖典型试验中的增温分布特点,即陆地比海洋增暖幅度更强,高纬度地区比低纬度地区增暖幅度更强,这一特点在太阳常数增加较大的试验中表现尤为明显。气候系统响应的性质在太阳常数分别增加2.5%、10%和15%与增加25%之间其响应方式有所改变,即气候系统对较小太阳常数变化的响应是线性的,而对较大太阳常数变化的响应则很可能是非线性的。
中文关键词:太阳常数  地表温度  数值实验  全球增暖
 
A Modeling Study on the Response of Surface Temperature to Changes in Solar Constant
Abstract:The National Centre for Atmospheric Research(NCAR) coupled climate model of version 1.4(CSM1.4) is integrated to investigate the response of Earth’s surface temperature to a range of external climate forcings.Evidence suggests that although the magnitude of local warming seems to show large differences,the overall pattern of temperature response is seen to be similar in the four cases with larger warming over the land(high latitudes) than the ocean(low latitudes),which is particularly pronounced for higher forcing cases and exhibits to some extent the features seen in many other global warming experiments.Also shown in the study is that the nature of the climate response has changed in some manner between solar constant increases of 2.5,10,and 15% and those of(25%),namely the temperature response is linearly related to the smaller forcings but nonlinearly to the larger ones.
keywords:solar constant  surface temperature  numerical experiment  global warming
查看全文  查看/发表评论  下载PDF阅读器