Estimation of 100 m root zone soil moisture by downscaling 1 km soil water index with machine learning and multiple geodata
Talha Mahmood,
Johannes Löw,
Julia Pöhlitz
et al.
Abstract:Root zone soil moisture (RZSM) is crucial for agricultural water management and land surface processes. The 1 km soil water index (SWI) dataset from Copernicus Global Land services, with eight fixed characteristic time lengths (T), requires root zone depth optimization (Topt) and is limited in use due to its low spatial resolution. To estimate RZSM at 100-m resolution, we integrate the depth specificity of SWI and employed random forest (RF) downscaling. Topographic synthetic aperture radar (SAR) and optical d… Show more
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