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On the role of soil moisture in daytime evolution of temperatures
journal contribution
posted on 2023-05-17, 19:32 authored by Lockart, N, Kavetski, D, Franks, SWThis paper explores the relationship between temperature, evaporation and soil moisture using a planetary boundary layer (PBL) model. It focuses on illustrating and quantifying the effect of soil moisture on the evolution of daytime temperatures. A simple convective PBL model coupled with the Penman–Monteith (PM) equation is used to estimate evapotranspiration. Following calibration and sensitivity analysis, the model was used to simulate the relative impact of dry and wet soil moisture conditions on daytime temperatures by changing the surface resistance parameter in the PM equation. It was found that the maximum temperature that can be reached during a day is constrained by the amount of soil moisture and the available net radiation, confirming previously published results. Higher temperatures can be reached with greater net radiation and dry soil moisture conditions.
History
Publication title
Hydrological Processes: An International JournalVolume
27Issue
26Pagination
3896-3904ISSN
1099-1085Department/School
School of EngineeringPublisher
John Wiley & Sons LtdPlace of publication
The Atrium, Southern Gate, Chichester, England, W Sussex, Po19 8SqRights statement
Copyright 2012 John Wiley and SonsRepository Status
- Restricted