Spring soil temperature as a predictor of summer heatwaves over northwestern China
Spring soil temperature as a predictor of summer heatwaves over northwestern China
复制标题
春季土壤温度可预测中国西北部夏季热浪
DOI:
10.1002/asl.887
复制
发表时间:
2019-02
影响因子:
3
通讯作者:
Lingyun Wu
中科院分区:
文献类型:
--
作者:
Zhanmei Yang;Jingyong Zhang;Lingyun Wu
Northwestern China has been increasingly affected by summer heatwaves in recent decades. In this study, we show that summer heatwave events over northwestern China are significantly correlated with the spring soil temperature over central Asia for the period of 1979–2017, irrespective of whether the data are detrended. By analyzing the physical links, we find that warmer spring soil temperature over central Asia tends to result in positive geopotential height anomalies over northern China and Mongolia including northwestern China in summer, which may subsequently lead to more heatwave events via the effects on downward solar radiation, subsidence warming and other processes. We further establish a statistical model to predict summer heatwaves over northwestern China based on the spring soil temperature over central Asia. The results show that the leave‐one‐out cross‐validation for the correlation skill is 0.56 for the period of 1979–2017. The spatial patterns are captured well in the hindcast experiments for the period of 2012–2017, with all pattern correlation coefficients ≥0.88. Our proposed prediction model can be applied to practical forecasting and may help to reduce the damage caused by summer heatwaves over northwestern China.
登录
查看更多内容
影响因子:
5.8
作者:
Changyu Zhang;Haishan Chen;Shanlei Sun
通讯作者:
Shanlei Sun
影响因子:
4.4
作者:
Wang Pinya;Tang Jianping;Sun Xuguang;Wang Shuyu;Wu Jian;Dong Xinning;Fang Juan
通讯作者:
Fang Juan
影响因子:
5.2
作者:
Chen, Yang;Zhai, Panmao
通讯作者:
Zhai, Panmao
影响因子:
2.4
作者:
McEvoy, Darryn;Ahmed, Iftekhar;Mullett, Jane
通讯作者:
Mullett, Jane
影响因子:
4.6
作者:
Gong, Dao-Yi;Gao, Yongqi;Gao, Miaoni
通讯作者:
Gao, Miaoni