典型文献
An assessment method of annual climatic status in China using extreme climate indices:2021 as an example
文献摘要:
A proper assessment of annual climatic status(ACS)is conducive to rationally formulating disaster prevention and mitigation measures.The former definition of ACS lacks either information on extreme climate or an intuitive grade feature service to the public.The ACS defined in the National Standard of the People's Republic of China(GBACS)only considers the accumulated climate effects of each weighted 10-d temperature/precipitation anomaly in a year.Under global warming,the losses caused by extreme climate events often have a significant impact on the grades of ACS,but this impact cannot be reasonably reflected by GBACS.This study proposed the assessment of ACS using extreme climate indices(extreme climate-based ACS(ECACS))and compared it with GBACS.The results indicated that GBACS and EC ACS can be used to evaluate the ACS from different angles.The ECACS is an important supplement to the GBACS,especially considering the years with frequently occurring extreme climate events.The sum of GBACS and ECACS is a reasonable and comprehensive way to evaluate the ACS.The empirical orthogonal function(EOF)analysis indicated a uniform mode(EOF1)and a dipole mode(EOF2)in GBACS and ECACS in China.The interannual variation characteristics of ECACS in northern and southern China(EOF2 pattern)are consistent with real climate features,which is conducive to providing better and more detailed regional information in the ACS forecast service.The results have essential instructive and application value for ACS assessment and government decision making.
文献关键词:
中图分类号:
作者姓名:
Zeng-Yuan GUO;Li-Juan CHEN;Bing XIE
作者机构:
Climate Studies Key Laboratory,National Climate Center China Meteorological Administration,Beijing 100081,China;Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD),Nanjing University of Information Science&Technology,Nanjing 210044,China
文献出处:
引用格式:
[1]Zeng-Yuan GUO;Li-Juan CHEN;Bing XIE-.An assessment method of annual climatic status in China using extreme climate indices:2021 as an example)[J].气候变化研究进展(英文版),2022(06):868-874
A类:
GBACS,ECACS
B类:
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AB值:
0.492669
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