Why Does a Shallow Land Model Underestimate the Dryland Drying Trends?

Vertical Coherence Dominates Decadal Land Water Storage Change Despite Hydroclimatic Extremes and Groundwater Pumping

Whether surface and deeper water storage trends move in the same direction underpins assessments of freshwater availability. Theory predicts vertical coherence, yet it is untested globally and questioned under climate extremes and human management. Using depth‐sensitive satellite observations spanning surface soil mois...

Ecosystem mobilization of subsurface water revealed by global active root-zone storage

Groundwater Variability Is Strongly Linked to Soil Temperature Across Global Aquifers

Groundwater plays a critical role in land‐atmosphere interactions by regulating soil moisture and surface energy fluxes, yet its contribution to land‐surface processes and heat extremes remains poorly quantified globally. Here, we combine observation‐based aquifer records with gridded groundwater table depth (GWD) mode...

Surface runoff and soil evaporation dominate the sensitivity of land surface models to soil parameters

Drought-induced soil moisture declines in Andean catchments inferred from satellite-derived ground displacement

The 2023–2024 drought reduced water availability worldwide, yet its impacts on soil moisture remain unknown in ungauged Andean catchments. Therefore, we assessed drought-induced soil moisture changes across seven catchments in Ecuador using a multivariable approach that integrates Sentinel-1 A SAR interferometry (InS...

Using GRACE as an Observational Constraint for Exponential Depth Extrapolation of Satellite Soil Moisture 

Changes in terrestrial water storage (TWS) can be observed globally by the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) mission, whereas microwave remote sensing primarily provides information on near-surface soil moisture. However, obtaining reliable information on water storage chang...