TY - JOUR
T1 - Accelerating flash droughts induced by the joint influence of soil moisture depletion and atmospheric aridity
AU - Qing, Yamin
AU - Wang, Shuo
AU - Ancell, Brian C.
AU - Yang, Zong Liang
N1 - Funding Information:
S.W. acknowledges support from the National Natural Science Foundation of China (grant no. 51809223) and the Hong Kong Research Grants Council Early Career Scheme (grant no. 25222319). The GLDAS datasets used in this study were acquired as part of the mission of NASA’s Earth Science Division and distributed by the Goddard Earth Sciences (GES) Data and Information Services Center (DISC).
Funding Information:
S.W. acknowledges support from the National Natural Science Foundation of China (grant no. 51809223) and the Hong Kong Research Grants Council Early Career Scheme (grant no. 25222319). The GLDAS datasets used in this study were acquired as part of the mission of NASA’s Earth Science Division and distributed by the Goddard Earth Sciences (GES) Data and Information Services Center (DISC).
Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - The emergence of flash drought has attracted widespread attention due to its rapid onset. However, little is known about the recent evolution of flash droughts in terms of the speed of onset and the causes of such a rapid onset phase of flash droughts. Here, we present a comprehensive assessment of the onset development of flash droughts and the underlying mechanisms on a global scale. We find that 33.64−46.18% of flash droughts with 5-day onset of drying, and there is a significant increasing trend in the proportion of flash droughts with the 1-pentad onset time globally during the period 2000−2020. Flash droughts do not appear to be occurring more frequently in most global regions, just coming on faster. In addition, atmospheric aridity is likely to create a flash drought-prone environment, and the joint influence of soil moisture depletion and atmospheric aridity further accelerates the rapid onset of flash droughts.
AB - The emergence of flash drought has attracted widespread attention due to its rapid onset. However, little is known about the recent evolution of flash droughts in terms of the speed of onset and the causes of such a rapid onset phase of flash droughts. Here, we present a comprehensive assessment of the onset development of flash droughts and the underlying mechanisms on a global scale. We find that 33.64−46.18% of flash droughts with 5-day onset of drying, and there is a significant increasing trend in the proportion of flash droughts with the 1-pentad onset time globally during the period 2000−2020. Flash droughts do not appear to be occurring more frequently in most global regions, just coming on faster. In addition, atmospheric aridity is likely to create a flash drought-prone environment, and the joint influence of soil moisture depletion and atmospheric aridity further accelerates the rapid onset of flash droughts.
UR - http://www.scopus.com/inward/record.url?scp=85125692031&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-28752-4
DO - 10.1038/s41467-022-28752-4
M3 - Journal article
C2 - 35241658
AN - SCOPUS:85125692031
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 1139
ER -