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Updated: Feb 8, 2026
08:20
In Situ Soil Moisture Sensors in Undisturbed Soils
Published on: November 18, 2022
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Soil Moisture-Temperature Coupling in a Set of Land Surface Models
A I Gevaert1, D G Miralles1,2, R A M de Jeu3
1Department of Earth and Life Sciences VU Amsterdam Amsterdam Netherlands.
Journal of Geophysical Research. Atmospheres : JGR
|June 26, 2018
Summary
Soil moisture-temperature coupling significantly impacts climate extremes. This study found consistent global hot spots across models, validating findings with flux tower data, though local variations persist.
Area of Science:
- Climate science
- Land surface processes
- Hydrology
Background:
- The land surface is critical for partitioning water and energy fluxes, influencing the climate system.
- Soil moisture-temperature coupling affects temperature extremes and heat waves.
Purpose of the Study:
- To investigate soil moisture-temperature coupling in five land surface models.
- To focus on the terrestrial component of coupling during the warm season.
- To compare model results with observational flux tower data.
Main Methods:
- Running five land surface models offline with identical atmospheric forcing.
- Calculating coupling using two semi-empirical metrics.
- Comparing model outputs with observational flux tower data.
Main Results:
- Global hot spots of soil moisture-temperature coupling were consistent across models and metrics, located in transitional climate regimes.
- Model coupling magnitudes and local patterns showed considerable variation.
- Model coupling spatially correlated with flux tower data (r = 0.5-0.7), with the multi-model mean performing well.
Conclusions:
- Land surface models show agreement on the location of major soil moisture-temperature coupling zones.
- Inter-model differences in coupling and evaporative fractions highlight potential issues in model parameterizations and data.
- Further research is needed to refine model parameterizations and improve understanding of land-atmosphere interactions.
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