期刊
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
卷 6, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41612-023-00351-0
关键词
-
This study separates internal variability from external forcing in the inter-decadal transition of annual precipitation in North and South China using dynamical downscaling simulations. The results show that internal variability accounts for 65% and 55% of the inter-decadal transition of annual precipitation in South and North China, respectively, while external forcing accounts for 70% of the warming trend in eastern China.
The annual precipitation in North China and South China shows a dipole pattern with a clear inter-decadal transition around the late 1970s. However, the relative contribution of internal variability and external forcing to this inter-decadal transition is still unclear. Here, we separate internal variability from the externally forced climate response through a set of dynamical downscaling simulations with lateral boundary conditions derived from reanalysis data and a large ensemble mean of the CMIP5 historical simulations. We find that internal variability accounts for about 65 and 55% of the inter-decadal transition of the annual precipitation in South and North China, respectively. By contrast, external forcing accounts for about 70% of the warming trend in eastern China over the second half of the 20th century. This study highlights the differential response of regional precipitation and air temperature to internal variability and external forcing over eastern China on an inter-decadal timescale.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据