Global estimates of daily evapotranspiration using SMAP surface and root-zone soil moisture

Kim, Youngwook; Park, Hotaek; Kimball, John S.; Colliander, Andreas; McCabe, Matthew F.

doi:10.1016/j.rse.2023.113803

Cited by 12 publications

(1 citation statement)

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“…Soil moisture is a key status variable for understanding many hydrological processes that, in turn, are involved in a large variety of natural processes (geomorphological, climatic, ecological, etc.) that act at different spatio-temporal scales (Entin et al, 2000). Soil moisture is involved in the partitioning of net radiation into sensible and latent heat (Jones and Brunsell, 2009); it determines the amount of water available for evotranspiration (Kim et al, 2023), and it controls subsurface flow and the migration of chemicals towards aquifers (Su et al, 2022). Antecedent soil moisture is a key factor in hydrological and erosional modeling (Moragoda et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

On the Variability in the Temporal Stability Pattern of Soil Moisture Under Mediterranean Conditions

González-Zamora,

Benito-Verdugo,

Martínez-Fernández

2024

Span. J. Soil Sci.

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In recent decades, there has been increasing interest in studying the variability in soil water properties and, specifically, the spatiotemporal variability in the soil water content. This is motivated by the notable theoretical and applied research interests in soil moisture dynamics and their implications for many natural processes. This study aimed to study whether there are variations in the spatial pattern of the temporal stability of soil moisture over time and to analyze the possible influences of certain hydroclimatic (soil water content, precipitation, and evapotranspiration) and soil factors (texture, bulk density, and organic matter content) on these variations. This study was conducted within the Soil Moisture Measurement Stations Network of the University of Salamanca (REMEDHUS, Spain) under Mediterranean conditions, with daily surface moisture data (0–5 cm depth) obtained from 20 stations for the 2006-2023 period. The results showed differences between the average pattern obtained with the 18-year data series and that obtained with the data series for each year. In more than half of the years studied, the representative station differed from that derived from the average pattern. The mean annual precipitation and summer precipitation characteristics seem to be the main factors influencing the variability in the spatial pattern of the temporal stability of soil moisture.

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