Calculation of the energy budget for heterogeneous land surfaces
Calculation of the energy budget for heterogeneous land surfaces
In this paper a scheme is presented for calculating the land surface energy budget based on the first law of thermodynamics. It takes into account the effects of water multiphase changes and hydrologic process. The enthalpy expression for a heterogeneous land surface is deduced, during which latent heats are assumed to be functions of temperature. Also, a solution is derived for calculating ground temperatures during the water phase transition and the hydrologic process. This study results in a more conservative estimate of the ground energy in comparison with many other land surface schemes.
Enthalpy, Heterogeneous land surface, Energy budget
1-12
Zhang, Zhengqiu
a7f2e402-2f87-40c5-9cc0-d67656bc9fde
Zhou, Xiuji
10a5f963-7136-4f7f-b8b3-6a7c65a2fc54
Li, Weiliang
36ba0b74-5f93-453f-9a39-3b1b39aa75ba
Sparrow, Michael
14416aed-e4b7-4081-b32e-7bdcf5b599fa
January 2003
Zhang, Zhengqiu
a7f2e402-2f87-40c5-9cc0-d67656bc9fde
Zhou, Xiuji
10a5f963-7136-4f7f-b8b3-6a7c65a2fc54
Li, Weiliang
36ba0b74-5f93-453f-9a39-3b1b39aa75ba
Sparrow, Michael
14416aed-e4b7-4081-b32e-7bdcf5b599fa
Abstract
In this paper a scheme is presented for calculating the land surface energy budget based on the first law of thermodynamics. It takes into account the effects of water multiphase changes and hydrologic process. The enthalpy expression for a heterogeneous land surface is deduced, during which latent heats are assumed to be functions of temperature. Also, a solution is derived for calculating ground temperatures during the water phase transition and the hydrologic process. This study results in a more conservative estimate of the ground energy in comparison with many other land surface schemes.
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More information
Published date: January 2003
Keywords:
Enthalpy, Heterogeneous land surface, Energy budget
Identifiers
Local EPrints ID: 63149
URI: http://eprints.soton.ac.uk/id/eprint/63149
ISSN: 1087-3562
PURE UUID: 0ff9709e-b69a-43ca-9f5f-ac1c90ea601d
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Date deposited: 15 Sep 2008
Last modified: 15 Mar 2024 11:36
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Contributors
Author:
Zhengqiu Zhang
Author:
Xiuji Zhou
Author:
Weiliang Li
Author:
Michael Sparrow
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