On the role of soil moisture in daytime evolution of temperatures
Article first published online: 20 SEP 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Volume 27, Issue 26, pages 3896–3904, 30 December 2013
How to Cite
Lockart, N., Kavetski, D. and Franks, S. W. (2013), On the role of soil moisture in daytime evolution of temperatures. Hydrol. Process., 27: 3896–3904. doi: 10.1002/hyp.9525
- Issue published online: 16 DEC 2013
- Article first published online: 20 SEP 2012
- Accepted manuscript online: 5 SEP 2012 10:08AM EST
- Manuscript Accepted: 20 AUG 2012
- Manuscript Received: 8 DEC 2011
- soil moisture;
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. Copyright © 2012 John Wiley & Sons, Ltd.