Accelerated soil moisture drought onset link to high temperatures and asymmetric responses associated with hit timing

Liu, Yi; Wang, Zhimin; Zhang, Xinyu; Zhu, Ye; Ren, Liliang; Yuan, Shanshui; Jin, Junliang

doi:https://doi.org/10.5194/hess-29-1103-2025

Articles | Volume 29, issue 4

https://doi.org/10.5194/hess-29-1103-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-29-1103-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 29, issue 4

Research article

|

28 Feb 2025

Research article |

| 28 Feb 2025

Accelerated soil moisture drought onset link to high temperatures and asymmetric responses associated with hit timing

Yi Liu, Zhimin Wang, Xinyu Zhang, Ye Zhu, Liliang Ren, Shanshui Yuan, and Junliang Jin

Data sets

ERA5-Land hourly data from 1950 to present J. Mu\~noz Sabater https://doi.org/10.24381/cds.e2161bac

Global Vegetation Greenness (NDVI) from AVHRR GIMMS-3G+, 1981--2022 J. E. Pinzon https://doi.org/10.3334/ORNLDAAC/2187

Short summary

A new drought feature, the duration of the drought onset, is proposed to describe how quickly droughts develop. The effects of high temperatures before and after droughts on drought occurrence are quantified. High temperatures affect droughts differently in regions with different vegetation conditions.