气候变化领域集成服务门户(CCPortal): Constrained work output of the moist atmospheric heat engine in a warming climate

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DOI	10.1126/science.1257103
	Constrained work output of the moist atmospheric heat engine in a warming climate
	Laliberté F.; Zika J.; Mudryk L.; Kushner P.J.; Kjellsson J.; Döös K.
发表日期	2015
ISSN	0036-8075
起始页码	540
结束页码	543
卷号	347 期号:6221
英文摘要	Incoming and outgoing solar radiation couple with heat exchange at Earth's surface to drive weather patterns that redistribute heat and moisture around the globe, creating an atmospheric heat engine. Here, we investigate the engine's work output using thermodynamic diagrams computed from reanalyzed observations and from a climate model simulation with anthropogenic forcing.We show that the work output is always less than that of an equivalent Carnot cycle and that it is constrained by the power necessary to maintain the hydrological cycle. In the climate simulation, the hydrological cycle increases more rapidly than the equivalent Carnot cycle. We conclude that the intensification of the hydrological cycle in warmer climates might limit the heat engine's ability to generate work.
英文关键词	water; climate forcing; climate modeling; engine; heat flux; human activity; hydrological cycle; solar radiation; thermodynamics; warming; Article; atmospheric moisture; climate; climate change; cooling; environmental factor; heat; heat exchange; humidity; hydrology; phase transition; priority journal; radiative forcing; solar radiation; thermodynamics; warming; water vapor; work; work output
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244437
作者单位	Department of Physics, University of TorontoON, Canada; University of Southampton, National Oceanography Centre, Southampton, United Kingdom; British Antarctic Survey, Cambridge, United Kingdom; Department of Meteorology, Stockholm University, Stockholm, Sweden
推荐引用方式 GB/T 7714	Laliberté F.,Zika J.,Mudryk L.,et al. Constrained work output of the moist atmospheric heat engine in a warming climate[J],2015,347(6221).
APA	Laliberté F.,Zika J.,Mudryk L.,Kushner P.J.,Kjellsson J.,&Döös K..(2015).Constrained work output of the moist atmospheric heat engine in a warming climate.Science,347(6221).
MLA	Laliberté F.,et al."Constrained work output of the moist atmospheric heat engine in a warming climate".Science 347.6221(2015).