| Processes Governing Water Vapor Isotope Composition in the Indo-Pacific Region: Convection and Water Vapor Transport | |
| Cai, Z (Cai, Zhongyin)1,2; Tian, L (Tian, Lide)1,3; Tian, LD | |
| Source Publication | JOURNAL OF CLIMATE
 |
| 2016 | |
| Volume | 29Issue:23Pages:8535-8546 |
| DOI | 10.1175/JCLI-D-16-0297.1 |
| Abstract | In an effort to understand the mechanisms controlling water vapor isotope composition in the Indo-Pacific region, encompassing southeastern Asia, this study investigates the spatial and interannual patterns in summer [June-September (JJAS)] water vapor isotopologues retrieved from the Tropospheric Emission Spectrometer (TES), especially those patterns associated with convection and water vapor transport. Both precipitation and water vapor isotope values exhibit a V-shaped longitudinal pattern in their spatial variations, reflecting the gradual rainout and increase in convective intensity along water vapor transport routes. On the temporal scale, compared with the 2006-10 JJAS mean conditions, TES water vapor delta D over the eastern Indian Ocean and southeastern Asia (R_W120; 10 degrees S-30 degrees N, 80 degrees-120 degrees E) is higher in the 2009 JJAS El Nino event when convective activity is reduced and lower in the 2010 JJAS La Nina event when convective activity is enhanced. This is consistent with the direct response of water vapor dD to deep convection. In contrast, TES water vapor dD over the western Pacific (R_WP; 10 degrees S-30 degrees N, 120 degrees-140 degrees E) is higher in the La Nina year than in the El Nino year, although convective activity in R_WP varies in the same manner as in R_W120. A comparison of water vapor dD values with convection and water vapor transport suggests that the westward transport of water vapor-isotopic anomalies and changes in the flux of water vapor transported from the central to the western Pacific lead to such an opposite response in the R_WP. These findings help interpret what causes the interannual variations recorded by Indo-Pacific water isotopologues. |
| Subject Area | 自然地理学 |
| WOS ID | WOS:000388676000014 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Asian Summer Monsoon Stable-isotopes Quantitative-analysis West Pacific El-nino Precipitation Enso Circulation Reanalysis Simulations |
| Cooperation Status | 国内 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7483 |
| Collection | 图书馆 |
| Corresponding Author | Tian, LD |
| Affiliation | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Bldg 3,Courtyard 16,Lin Cui Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Cai, Z ,Tian, L ,Tian, LD. Processes Governing Water Vapor Isotope Composition in the Indo-Pacific Region: Convection and Water Vapor Transport[J]. JOURNAL OF CLIMATE,2016,29(23):8535-8546. |
| APA | Cai, Z ,Tian, L ,&Tian, LD.(2016).Processes Governing Water Vapor Isotope Composition in the Indo-Pacific Region: Convection and Water Vapor Transport.JOURNAL OF CLIMATE,29(23),8535-8546. |
| MLA | Cai, Z ,et al."Processes Governing Water Vapor Isotope Composition in the Indo-Pacific Region: Convection and Water Vapor Transport".JOURNAL OF CLIMATE 29.23(2016):8535-8546. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.29(23) 8535-8546 2（2226KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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