GSTDTAP  > 气候变化
DOI10.1175/JCLI-D-19-0081.1
Changes in Temperature Seasonality in China: Human Influences and Internal Variability
Qian, Cheng1,2; Zhang, Xuebin3
2019-10-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2019
卷号32期号:19页码:6237-6249
文章类型Article
语种英语
国家Peoples R China; Canada
英文摘要

Temperature seasonality, the difference between summer and winter temperatures in mid-high latitudes, is an important component of the climate. Whether humans have had detectable influences on changing surface temperature seasonality at scales smaller than the subcontinental scale, where humans are directly impacted, is not clear. In this study, the first detection and attribution analysis of changes in temperature seasonality in China has been carried out. Detection and attribution of both summer and winter temperatures were also conducted, with careful consideration of observational uncertainty and the inconsistency between observation and model simulations induced by the long coastline and country border in China. The results show that the response to external forcings is robustly detectable in the spatiotemporal pattern of weakening seasonality and in that of warming winter temperature, although models may have underestimated the observed changes. The response to external forcings is detectable and consistent with the observed change in summer temperature averaged over China. Human influences are detectable in changes in seasonality and summer and winter temperatures, most robustly in winter, and these influences can be separated from those of natural forcing when averaged over China. The recent increase in summer temperature was found to be due to external forcings, and the warming hiatus in winter temperature from 1998 to 2013 was due to a statistically significant cooling trend induced by internal variability. These results will give insights into the understanding of the warming hiatus in China, as well as the hot summers and cold winters in recent years.


英文关键词Anthropogenic effects Climate change Climate variability Surface temperature Seasonal cycle
领域气候变化
收录类别SCI-E
WOS记录号WOS:000482950800003
WOS关键词ANNUAL CYCLE ; PART I ; TRENDS ; PRECIPITATION ; MODEL
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/187414
专题气候变化
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China;
3.Environm & Climate Change Canada, Div Climate Res, Toronto, ON, Canada
推荐引用方式
GB/T 7714
Qian, Cheng,Zhang, Xuebin. Changes in Temperature Seasonality in China: Human Influences and Internal Variability[J]. JOURNAL OF CLIMATE,2019,32(19):6237-6249.
APA Qian, Cheng,&Zhang, Xuebin.(2019).Changes in Temperature Seasonality in China: Human Influences and Internal Variability.JOURNAL OF CLIMATE,32(19),6237-6249.
MLA Qian, Cheng,et al."Changes in Temperature Seasonality in China: Human Influences and Internal Variability".JOURNAL OF CLIMATE 32.19(2019):6237-6249.
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