Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026222 |
Detecting shifts in tropical moisture imbalances with satellite-derived isotope ratios in water vapor | |
Bailey, A.1,2; Blossey, P. N.3; Noone, D.4; Nusbaumer, J.5,6,7; Wood, R.3 | |
2017-06-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | As global temperatures rise, regional differences in evaporation (E) and precipitation (P) are likely to become more disparate, causing the drier E-dominated regions of the tropics to become drier and the wetter P-dominated regions to become wetter. Models suggest that such intensification of the water cycle should already be taking place; however, quantitatively verifying these changes is complicated by inherent difficulties in measuring E and P with sufficient spatial coverage and resolution. This paper presents a new metric for tracking changes in regional moisture imbalances (e.g., E-P) by defining D(q)the isotope ratio normalized to a reference water vapor concentration of 4mmolmol(-1)and evaluates its efficacy using both remote sensing retrievals and climate model simulations in the tropics. By normalizing the isotope ratio with respect to water vapor concentration, D-q isolates the portion of isotopic variability most closely associated with shifts between E- and P-dominated regimes. Composite differences in D-q between cold and warm phases of El Nino-Southern Oscillation (ENSO) verify that D-q effectively tracks changes in the hydrological cycle when large-scale convective reorganization takes place. Simulated D-q also demonstrates sensitivity to shorter-term variability in E-P at most tropical locations. Since the isotopic signal of E-P in free tropospheric water vapor transfers to the isotope ratios of precipitation, multidecadal observations of both water vapor and precipitation isotope ratios should provide key evidence of changes in regional moisture imbalances now and in the future. |
英文关键词 | water isotope ENSO TES water cycle intensification amount effect |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404131800013 |
WOS关键词 | SOUTHERN-OSCILLATION ; HYDROLOGICAL CYCLE ; DEEP CONVECTION ; NORTHERN BORNEO ; PRECIPITATION ; CLIMATE ; OCEAN ; ISOTOPOLOGUES ; PROFILES ; PACIFIC |
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/32464 |
专题 | 气候变化 |
作者单位 | 1.Univ Washington, Joint Inst Study Atmosphere & Oceans, Seattle, WA 98195 USA; 2.Dartmouth Coll, Dept Earth Sci, Hanover, NH 03755 USA; 3.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 4.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA; 5.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO USA; 6.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO USA; 7.NASA, Goddard Inst Space Studies, New York, NY 10025 USA |
推荐引用方式 GB/T 7714 | Bailey, A.,Blossey, P. N.,Noone, D.,et al. Detecting shifts in tropical moisture imbalances with satellite-derived isotope ratios in water vapor[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(11). |
APA | Bailey, A.,Blossey, P. N.,Noone, D.,Nusbaumer, J.,&Wood, R..(2017).Detecting shifts in tropical moisture imbalances with satellite-derived isotope ratios in water vapor.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(11). |
MLA | Bailey, A.,et al."Detecting shifts in tropical moisture imbalances with satellite-derived isotope ratios in water vapor".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.11(2017). |
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