Articles | Volume 26, issue 24
https://doi.org/10.5194/hess-26-6457-2022
https://doi.org/10.5194/hess-26-6457-2022
Research article
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22 Dec 2022
Research article | Highlight paper |  | 22 Dec 2022

Global evaluation of the “dry gets drier, and wet gets wetter” paradigm from a terrestrial water storage change perspective

Jinghua Xiong, Shenglian Guo, Abhishek, Jie Chen, and Jiabo Yin

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ET-WB: water balance-based estimations of terrestrial evaporation over global land and major global basins
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Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2023-188,https://doi.org/10.5194/essd-2023-188, 2023
Preprint under review for ESSD
Short summary
A reexamination of the dry gets drier and wet gets wetter paradigm over global land: insight from terrestrial water storage changes
Jinghua Xiong, Shenglian Guo, Jie Chen, and Jiabo Yin
Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2021-645,https://doi.org/10.5194/hess-2021-645, 2022
Manuscript not accepted for further review
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Cited articles

Abhishek, Kinouchi, T., and Sayama, T.: A comprehensive assessment of water storage dynamics and hydroclimatic extremes in the Chao Phraya River Basin during 2002–2020, J. Hydrol., 603, 126868, https://doi.org/10.1016/j.jhydrol.2021.126868, 2021. 
AghaKouchak, A.: A baseline probabilistic drought forecasting framework using standardized soil moisture index: application to the 2012 United States drought, Hydrol. Earth Syst. Sci., 18, 2485–2492, https://doi.org/10.5194/hess-18-2485-2014, 2014. 
Allan, R. P., Soden, B. J., John, V. O., Ingram, W., and Good, P.: Current changes in tropical precipitation, Environ. Res. Lett., 5, 025205, https://doi.org/10.1088/1748-9326/5/2/025205, 2010. 
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An, L., Wang, J., Huang, J., Pokhrel, Y., Hugonnet, R., Wada, Y., Caceres, D., Müller Schmied, H., Song, C. Q., Berthier, E., Yu, H. P., and Zhang, G. L.: Divergent Causes of Terrestrial Water Storage Decline Between Drylands and Humid Regions Globally, Geophys. Res. Lett., 48, e2021GL095035, https://doi.org/10.1029/2021GL095035, 2021. 
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Executive editor
This work addresses the important issue of the "dry gets drier wet gets wetter" paradigm from a new perspective using terrestrial water storage estimates. The paper can be an important contribution to the debate on how climate change will impact the global distribution of aridity.
Short summary
Although the "dry gets drier, and wet gets wetter (DDWW)" paradigm is prevalent in summarizing wetting and drying trends, we show that only 11.01 %–40.84 % of the global land confirms and 10.21 %–35.43 % contradicts the paradigm during 1985–2014 from a terrestrial water storage change perspective. Similar proportions that intensify with the increasing emission scenarios persist until the end of the 21st century. Findings benefit understanding of global hydrological responses to climate change.