Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026774 |
An Experimental Investigation of Kinetic Fractionation of Open-Water Evaporation Over a Large Lake | |
Xiao, Wei1,2; Lee, Xuhui1,2,3; Hu, Yongbo1,2; Liu, Shoudong1,2; Wang, Wei1,2; Wen, Xuefa4; Werner, Martin5; Xie, Chengyu1,2 | |
2017-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Germany |
英文摘要 | The oxygen isotopes of water ((H2O)-O-18 and (H2O)-O-16) are tracers widely used for the investigation of Earth science problems. The tracer applications are based on the premise that the O-18/O-16 ratio of open-water evaporation (delta O-18(E)) can be calculated from environmental conditions. A long-standing issue concerns the role of kinetic fractionation, or diffusion transport, in the evaporation process. Here we deployed an optical instrument at a large lake (area 2,400 km(2)) to make in situ measurement of O-18 and D of atmospheric vapor, then determined delta O-18 and delta D of open-water evaporation using the gradient-diffusion method. Our results show a much weaker kinetic effect than suggested by the kinetic factor epsilon(k) adopted in some previous studies of lake hydrology (14.2). By incorporating into the (H2O)-O-18 isotopic mass balance of the lake a lower epsilon(k) value (about 6.2) used for ocean evaporation in global climate models, we obtain an annual lake evaporation rate that agrees with an independent eddy-covariance observation, but the rate is 72% higher than if the commonly used lake epsilon(k) value of 14.2 is applied. The applicability of this results to small lakes is uncertain and in need of field-based assessment. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417195500041 |
WOS关键词 | ISOTOPE MASS-BALANCE ; DEUTERIUM EXCESS ; GREAT-LAKES ; STABLE-ISOTOPES ; IN-SITU ; VAPOR ; FLUXES ; RATIOS ; VARIABILITY ; EXCHANGE |
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/32858 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; 3.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; 5.Alfred Wegener Inst, Helmholtz Ctr Polar & Marine Res, Bremerhaven, Germany |
推荐引用方式 GB/T 7714 | Xiao, Wei,Lee, Xuhui,Hu, Yongbo,et al. An Experimental Investigation of Kinetic Fractionation of Open-Water Evaporation Over a Large Lake[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(21). |
APA | Xiao, Wei.,Lee, Xuhui.,Hu, Yongbo.,Liu, Shoudong.,Wang, Wei.,...&Xie, Chengyu.(2017).An Experimental Investigation of Kinetic Fractionation of Open-Water Evaporation Over a Large Lake.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(21). |
MLA | Xiao, Wei,et al."An Experimental Investigation of Kinetic Fractionation of Open-Water Evaporation Over a Large Lake".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.21(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论