Earth System Dynamics
Earth System Dynamics
ESD
Articles | Volume 15, issue 5
Articles | Volume 15, issue 5
https://doi.org/10.5194/esd-15-1277-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esd-15-1277-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 5
Research article
 | 
30 Sep 2024
Research article |  | 30 Sep 2024

An enhanced Standardized Precipitation–Evapotranspiration Index (SPEI) drought-monitoring method integrating land surface characteristics

Liqing Peng, Justin Sheffield, Zhongwang Wei, Michael Ek, and Eric F. Wood

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Short summary
Integrating evaporative demand into drought indicators is effective, but the choice of method and the effectiveness of surface features remain undocumented. We evaluate various methods and surface features for predicting soil moisture dynamics. Using minimal ancillary information alongside meteorological and vegetation data, we develop a simple land-cover-based method that improves soil moisture drought predictions, especially in forests, showing promise for better real-time drought forecasting.
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