On the role of soil moisture in daytime evolution of temperatures

Title: On the role of soil moisture in daytime evolution of temperatures
Creator: Lockart, Natalie; Kavetski, Dmitri; Franks, Stewart W.
Relation: Hydrological Processes Vol. 27, Issue 26, p. 3896-3904
Publisher Link: http://dx.doi.org/10.1002/hyp.9525
Publisher: John Wiley & Sons
Resource Type: journal article
Date: 2013
Description: 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.
Subject: soil moisture; evaporation; temperature
Identifier: http://hdl.handle.net/1959.13/1341019
Identifier: uon:28636
Identifier: ISSN:0885-6087
Language: eng
Reviewed

		Thumbnail	File	Description	Size	Format