A study of the dependence between soil moisture and precipitation in different ecoregions of the Northern Hemisphere

Xue, Shouye; Wu, Guocan

doi:https://doi.org/10.5194/hess-29-5575-2025

Articles | Volume 29, issue 20

https://doi.org/10.5194/hess-29-5575-2025

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

https://doi.org/10.5194/hess-29-5575-2025

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

Articles | Volume 29, issue 20

Research article

|

22 Oct 2025

Research article |

| 22 Oct 2025

A study of the dependence between soil moisture and precipitation in different ecoregions of the Northern Hemisphere

Shouye Xue and Guocan Wu

Supplement

https://doi.org/10.5194/hess-29-5575-2025-supplement

Data sets

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

Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) Robert Adler et al. https://doi.org/10.7289/V5RX998Z

ESA Land Surface Temperature Climate Change Initiative (LST_cci): All-weather MicroWave Land Surface Temperature (MW-LST) global data record (1996-2020), v2.33 C. Jimenez and C. Prigent https://doi.org/10.5285/a7e811fe11d34df5abac6f18c920bbeb

Short summary

Soil moisture is influenced by both precipitation and evapotranspiration, with spatial heterogeneities and seasonal variations across different ecological zones. In this study, the joint distributions of precipitation and soil moisture were analyzed at monthly and annual scales. The negative dependences between soil moisture and precipitation were found, due to soil property changes induced by land–surface interactions. The results can enhance our understandings in drought and hydrometeorology.