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On the role of soil moisture in daytime evolution of temperatures

Citation

Lockart, N and Kavetski, D and Franks, SW, On the role of soil moisture in daytime evolution of temperatures, Hydrological Processes: An International Journal, 27, (26) pp. 3896-3904. ISSN 1099-1085 (2013) [Refereed Article]

Copyright Statement

Copyright 2012 John Wiley and Sons

DOI: doi:10.1002/hyp.9525

Abstract

This 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.

Item Details

Item Type:Refereed Article
Keywords:climate variability change drought physics evaporation
Research Division:Engineering
Research Group:Environmental Engineering
Research Field:Environmental Engineering Modelling
Objective Division:Environment
Objective Group:Land and Water Management
Objective Field:Land and Water Management of environments not elsewhere classified
Author:Franks, SW (Professor Stewart Franks)
ID Code:86429
Year Published:2013
Web of Science® Times Cited:6
Deposited By:Engineering
Deposited On:2013-09-14
Last Modified:2014-06-05
Downloads:0

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