Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026154 |
Stable water isotopes and large-scale vertical motions in the tropics | |
Torri, Giuseppe1; Ma, Ding2; Kuang, Zhiming1,3 | |
2017-04-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A complete understanding of the interaction between convection and the large-scale circulation in the tropics remains an outstanding problem. Although there is evidence that the vertical structure of convective heating has great influence in the large-scale response and that this structure also presents considerable geographical variations, more need to be done. One of the questions that are still unanswered is how the vertical structure of the convective heating, or, similarly, of vertical velocity, varies across the tropical Pacific. Here it is suggested that some light can be shed on this debate by considering stable water isotopes. Because these tend to be progressively less abundant with increasing height, precipitation associated with top heavy profiles should be expected to be more depleted than that associated with bottom heavy profiles. This claim is verified with a variety of data: first, using observations from IAEA/WMO Global Network of Isotopes in Precipitation stations; then, using a simple model based on the budget of water isotopes in precipitation; finally, using a more complex isotope-enabled general circulation model. Evidence provided by these sources confirms that different structures of vertical velocities are associated with different isotopic abundances, with top heavy profiles giving rise to more depleted rainfall. Finally, the data from over the Pacific, although scarce, seem to suggest that precipitation in the eastern part is more enriched than in the western, thus hinting at velocity profiles over the East being more bottom heavy than over the West Pacific. |
英文关键词 | stable water isotopes convection eastern Pacific Large-scale circulation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400172000001 |
WOS关键词 | TRMM PRECIPITATION RADAR ; EASTERN PACIFIC ; CLOUD CLUSTERS ; TEMPERATURE ; CIRCULATION ; ATMOSPHERE ; MODEL ; UNCERTAINTIES ; SATELLITE ; RATIOS |
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/33738 |
专题 | 气候变化 |
作者单位 | 1.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA; 2.Columbia Univ, Earth Inst, New York, NY USA; 3.Harvard Univ, Harvard John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Torri, Giuseppe,Ma, Ding,Kuang, Zhiming. Stable water isotopes and large-scale vertical motions in the tropics[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(7). |
APA | Torri, Giuseppe,Ma, Ding,&Kuang, Zhiming.(2017).Stable water isotopes and large-scale vertical motions in the tropics.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(7). |
MLA | Torri, Giuseppe,et al."Stable water isotopes and large-scale vertical motions in the tropics".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.7(2017). |
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