English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Modelling soil moisture in hyper-arid conditions

MPS-Authors
/persons/resource/persons37148

Fraedrich,  Klaus F.
MPI for Meteorology, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Shao, Y., Fraedrich, K. F., & Ishizuka, M. (in press). Modelling soil moisture in hyper-arid conditions. Boundary-Layer Meteorology, online first. doi:10.1007/s10546-020-00596-9.


Cite as: http://hdl.handle.net/21.11116/0000-0007-E35E-0
Abstract
In most land-surface models, the evolution of soil moisture is governed by soil-hydraulic processes. In hyper-arid soils, these processes break down, but soil moisture continues to show clear temporal variations, suggesting that other processes may be at work. We hypothesize that moisture in such soils varies due to evaporation in the soil and to vapour fluxes at the air–soil interface. To test this, we include vapour exchange between the air and soil in a land-surface model, apply the model to a desert site, and compare the simulated and observed soil moisture. The good agreement between the simulations and observations confirms our hypothesis. Using the model results, we examine the interactions between the soil-moisture and soil-vapour phases and influences of the soil-vapour phase on the surface energy balance. © 2021, The Author(s).