The Ross Sea Dipole - temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years
文献类型：期刊论文
| 作者 | Bertler, Nancy A. N.1,2; Conway, Howard3; Dahl-Jensen, Dorthe4; Emanuelsson, Daniel B.1,2; Winstrup, Mai4; Vallelonga, Paul T.4; Lee, James E.5; Brook, Ed J.5; Severinghaus, Jeffrey P.6; Fudge, Taylor J.3 |
| 刊名 | CLIMATE OF THE PAST
 |
| 出版日期 | 2018-02-21 |
| 卷号 | 14期号:2页码:193-214 |
| ISSN号 | 1814-9324 |
| DOI | 10.5194/cp-14-193-2018 |
| 通讯作者 | Bertler, Nancy A. N.(nancy.bertler@vuw.ac.nz) |
| 英文摘要 | High-resolution, well-dated climate archives provide an opportunity to investigate the dynamic interactions of climate patterns relevant for future projections. Here, we present data from a new, annually dated ice core record from the eastern Ross Sea, named the Roosevelt Island Climate Evolution (RICE) ice core. Comparison of this record with climate reanalysis data for the 1979-2012 interval shows that RICE reliably captures temperature and snow precipitation variability in the region. Trends over the past 2700 years in RICE are shown to be distinct from those in West Antarctica and the western Ross Sea captured by other ice cores. For most of this interval, the eastern Ross Sea was warming (or showing isotopic enrichment for other reasons), with increased snow accumulation and perhaps decreased sea ice concentration. However, West Antarctica cooled and the western Ross Sea showed no significant isotope temperature trend. This pattern here is referred to as the Ross Sea Dipole. Notably, during the Little Ice Age, West Antarctica and the western Ross Sea experienced colder than average temperatures, while the eastern Ross Sea underwent a period of warming or increased isotopic enrichment. From the 17th century onwards, this dipole relationship changed. All three regions show current warming, with snow accumulation declining in West Antarctica and the eastern Ross Sea but increasing in the western Ross Sea. We interpret this pattern as reflecting an increase in sea ice in the eastern Ross Sea with perhaps the establishment of a modern Roosevelt Island polynya as a local moisture source for RICE. |
| 收录类别 | SCI |
| WOS关键词 | SOUTHERN ANNULAR MODE ; PACIFIC DECADAL OSCILLATION ; HEMISPHERE SURFACE CLIMATE ; GROUNDING-LINE RETREAT ; WEST ANTARCTICA ; HIGH-RESOLUTION ; AMUNDSEN SEA ; OCEAN CIRCULATION ; EAST ANTARCTICA ; WARMING HIATUS |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000425657600001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558089 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Bertler, Nancy A. N. |
| 作者单位 | 1.Victoria Univ Wellington, Antarctic Res Ctr, Wellington 6012, New Zealand 2.GNS Sci, Lower Hutt 5010, New Zealand 3.Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA 4.Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark 5.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97330 USA 6.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA 7.British Antarctic Survey, Madingley Rd, Cambridge CB3 0ET, England 8.Curtin Univ, Phys & Astron, Perth, WA, Australia 9.Univ Maine, Climate Change Inst, Orono, ME 04469 USA 10.Alfred Wegner Inst, Bremen, Germany |
| 推荐引用方式 GB/T 7714 | Bertler, Nancy A. N.,Conway, Howard,Dahl-Jensen, Dorthe,et al. The Ross Sea Dipole - temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years[J]. CLIMATE OF THE PAST,2018,14(2):193-214. |
| APA | Bertler, Nancy A. N..,Conway, Howard.,Dahl-Jensen, Dorthe.,Emanuelsson, Daniel B..,Winstrup, Mai.,...&Zhang, Xin.(2018).The Ross Sea Dipole - temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years.CLIMATE OF THE PAST,14(2),193-214. |
| MLA | Bertler, Nancy A. N.,et al."The Ross Sea Dipole - temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years".CLIMATE OF THE PAST 14.2(2018):193-214. |
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来源：寒区旱区环境与工程研究所
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