Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3722-x |
Poleward energy transport: is the standard definition physically relevant at all time scales? | |
Liang, Minyi1; Czaja, Arnaud1; Graversen, Rune2; Tailleux, Remi3 | |
2018-03-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:1785-1797 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Norway |
英文摘要 | Poleward energy transport in the atmosphere and oceans constitutes an important branch of the global energy budget, and its role in the climate system has been the subject of many studies. In the atmosphere, the transport is affected by "eddies" and large scale meridional cells, both with zero net mass transport across latitude circles, but also partly by processes associated with a net transport of mass across latitude circles. The latter must cease to operate in steady state, but they may be significant when time variability of the heat budget is considered. Indeed, examination of reanalysis data on short (daily to monthly) timescales shows that mass variations on these timescales result in surprisingly large fluctuations (in excess of W = 1 PW) in the poleward heat transport. These fluctuations are referred to as "extensive", for they primarily alter the mass integrated energy of the region considered, but not its averaged value. It is suggested that extensive fluctuations mask more meaningful climate signals present in the heat transport variability aEuroion monthly and interannual timescales, and a new formulation is proposed to isolate the latter. This new formulation is applied successfully to reanalysis data and climate model simulations. |
英文关键词 | Heat transport Climate variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426707100018 |
WOS关键词 | 1986-87 EL-NINO ; HEAT-TRANSPORT ; SYSTEM MODEL ; VARIABILITY ; CIRCULATION ; OCEAN ; REANALYSIS ; ATMOSPHERE ; MASS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35771 |
专题 | 气候变化 |
作者单位 | 1.Imperial Coll London, Dept Phys, London, England; 2.Univ Tromso, Dept Phys & Technol, Tromso, Norway; 3.Univ Reading, Dept Meteorol, Reading, Berks, England |
推荐引用方式 GB/T 7714 | Liang, Minyi,Czaja, Arnaud,Graversen, Rune,et al. Poleward energy transport: is the standard definition physically relevant at all time scales?[J]. CLIMATE DYNAMICS,2018,50:1785-1797. |
APA | Liang, Minyi,Czaja, Arnaud,Graversen, Rune,&Tailleux, Remi.(2018).Poleward energy transport: is the standard definition physically relevant at all time scales?.CLIMATE DYNAMICS,50,1785-1797. |
MLA | Liang, Minyi,et al."Poleward energy transport: is the standard definition physically relevant at all time scales?".CLIMATE DYNAMICS 50(2018):1785-1797. |
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