Anthropogenic impact on the severity of compound extreme high temperature and drought/rainy events in China
- 1Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disasters, Ministry of Education/Joint International Research Laboratory of Climate and Environment Change, Nanjing University of Infor
- 2Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
- 3Nansen Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
- 4Meteorological Service Center of Jiangsu Province, Nanjing, China
Extreme events seriously affect human health and natural environment. In the present study, several indexes that can describe the severity of compound extreme high temperature and drought/rainy events (CHTDE/CHTRE) are constructed based on copulas. According to observations, CHTDE and CHTRE have intensified in most areas of China during 1961–2014. The significant increase trend in the severity of CHTDE and CHTRE is basically consistent with simulations under historical anthropogenic forcing. This result proves that changes in CHTDE can be largely attributed to anthropogenic climate change. The historical greenhouse gas forcing is identified to be the dominant factor that affects the severity of CHTDE in China, particularly in the Tibetan Plateau and Northwest China. Moreover, the contribution of anthropogenic forcing to the linear change of the CHTRE severity in China is more than 90%. In addition, the ozone and land use signals also can be detected on change of CHTDE and CHTRE.
How to cite: Li, W., Wang, H., Xue, R., Li, H., Duan, M., Luo, X., and Ai, W.: Anthropogenic impact on the severity of compound extreme high temperature and drought/rainy events in China, EGU General Assembly 2023, Vienna, Austria, 23–28 Apr 2023, EGU23-1579, https://doi.org/10.5194/egusphere-egu23-1579, 2023.
