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学科主题: Materials Science, Multidisciplinary; Multidisciplinary Sciences
题名: Entropy budget of the earth, atmosphere and ocean system
作者: Gan, ZJ ; Yan, YF ; Qi, YQ
通讯作者: yyf901@scsio.ac.cn
关键词: system ; thermodynamics ; energy ; entropy flux
刊名: PROGRESS IN NATURAL SCIENCE
发表日期: 2004
卷: 14, 期:12, 页:1088-1094
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, LED, Guangzhou 510301, Peoples R China
项目归属: LED
摘要: The energy budget in the system of the earth, atmosphere and ocean conforms to the first law of thermodynamics, namely the law of conservation of energy, and it is balanced when the system is in a steady-state condition. However, the entropy budget following the second law of thermodynamics is unbalanced. In this paper, we deduce the expressions of entropy flux and re-estimate the earth, atmosphere and ocean annual mean entropy budget with the updated climatologically global mean energy budget and the climatologically air-sea flux data. The calculated results show that the earth system obtains a net influx of negative entropy (-1179. 3 mWm(-2)K(-1)) from its surroundings, and the atmosphere and the ocean systems obtain a net input of negative entropy at about -537.4 mWm(-2)K(-1) and -555.6 mWm(-2)K(-1), respectively. Calculations of the entropy budget can provide some guidance for further understanding the spatial-temporal change of the local entropy flux, and the entropy production resulting from all kinds of irreversible processes inside these systems.
原文出处: 查看原文
WOS记录号: WOS:000225781100009
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5597
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Gan, ZJ; Yan, YF; Qi, YQ.Entropy budget of the earth, atmosphere and ocean system,PROGRESS IN NATURAL SCIENCE,2004,14(12):1088-1094
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