Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-5865-2017 |
How does sea ice influence delta O-18 of Arctic precipitation? | |
Faber, Anne-Katrine1; Vinther, Bo Mollesoe1; Sjolte, Jesper2; Pedersen, Rasmus Anker1,3 | |
2017-05-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark; Sweden |
英文摘要 | This study investigates how variations in Arctic sea ice and sea surface conditions influence delta O-18 of presentday Arctic precipitation. This is done using the model iso-CAM(3), an isotope-equipped version of the National Center for Atmospheric Research Community Atmosphere Model version 3. Four sensitivity experiments and one control simulation are performed with prescribed sea surface temperature (SST) and sea ice. Each of the four experiments simulates the atmospheric and isotopic response to Arctic oceanic conditions for selected years after the beginning of the satellite era in 1979. Changes in sea ice extent and SSTs have different impacts in Greenland and the rest of the Arctic. The simulated changes in central Arctic sea ice do not influence delta O-18 of Greenland precipitation, only anomalies of Baffin Bay sea ice. However, this does not exclude the fact that simulations based on other sea ice and sea surface temperature distributions might yield changes in the delta O-18 of precipitation in Greenland. For the Arctic, delta O-18 of precipitation and water vapour is sensitive to local changes in sea ice and sea surface temperature and the changes in water vapour are surface based. Reduced sea ice extent yields more enriched isotope values, whereas increased sea ice extent yields more depleted isotope values. The distribution of the sea ice and sea surface conditions is found to be essential for the spatial distribution of the simulated changes in delta O-18. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401332000002 |
WOS关键词 | SURFACE TEMPERATURE ; STABLE-ISOTOPES ; WATER ISOTOPES ; CLIMATE ; ANOMALIES ; CIRCULATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/30727 |
专题 | 地球科学 |
作者单位 | 1.Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, Copenhagen, Denmark; 2.Lund Univ, Dept Geol, Quaternary Sci, Lund, Sweden; 3.Danish Meteorol Inst, Climate & Arctic Res, Copenhagen, Denmark |
推荐引用方式 GB/T 7714 | Faber, Anne-Katrine,Vinther, Bo Mollesoe,Sjolte, Jesper,et al. How does sea ice influence delta O-18 of Arctic precipitation?[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(9). |
APA | Faber, Anne-Katrine,Vinther, Bo Mollesoe,Sjolte, Jesper,&Pedersen, Rasmus Anker.(2017).How does sea ice influence delta O-18 of Arctic precipitation?.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(9). |
MLA | Faber, Anne-Katrine,et al."How does sea ice influence delta O-18 of Arctic precipitation?".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.9(2017). |
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