The Ross Sea Dipole - temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years

被引：43

作者：

Bertler, Nancy A. N. ^{[1
,2
]}

Conway, Howard ^{[3
]}

Dahl-Jensen, Dorthe ^{[4
]}

Emanuelsson, Daniel B. ^{[1
,2
]}

Winstrup, Mai ^{[4
]}

Vallelonga, Paul T. ^{[4
]}

Lee, James E. ^{[5
]}

Brook, Ed J. ^{[5
]}

Severinghaus, Jeffrey P. ^{[6
]}

Fudge, Taylor J. ^{[3
]}

Keller, Elizabeth D. ^{[2
]}

Baisden, W. Troy ^{[2
,27
]}

Hindmarsh, Richard C. A. ^{[7
]}

Neff, Peter D. ^{[1
,2
,28
]}

Blunier, Thomas ^{[4
]}

Edwards, Ross ^{[8
,26
]}

Mayewski, Paul A. ^{[9
]}

Kipfstuhl, Sepp ^{[10
]}

Buizert, Christo ^{[5
]}

Canessa, Silvia ^{[2
]}

Dadic, Ruzica ^{[1
]}

Kjaer, Helle A. ^{[4
]}

Kurbatov, Andrei ^{[9
]}

Zhang, Dongqi ^{[11
,12
]}

Waddington, Edwin D. ^{[3
]}

Baccolo, Giovanni ^{[13
]}

Beers, Thomas ^{[9
]}

Brightley, Hannah J. ^{[1
,2
]}

Carter, Lionel ^{[1
]}

Clemens-Sewall, David ^{[14
]}

Ciobanu, Viorela G. ^{[4
]}

Delmonte, Barbara ^{[13
]}

Eling, Lukas ^{[1
,2
]}

Ellis, Aja ^{[8
,30
]}

Ganesh, Shruthi ^{[15
]}

Golledge, Nicholas R. ^{[12
]}

Haines, Skylar ^{[9
]}

Handley, Michael ^{[9
]}

Hawley, Robert L. ^{[14
]}

Hogan, Chad M. ^{[16
]}

Johnson, Katelyn M. ^{[1
,2
]}

Korotkikh, Elena ^{[9
]}

Lowry, Daniel P. ^{[1
]}

Mandeno, Darcy ^{[1
]}

McKay, Robert M. ^{[1
]}

Menking, James A. ^{[5
]}

Naish, Timothy R. ^{[1
]}

Noerling, Caroline ^{[10
]}

Ollive, Agathe ^{[17
]}

Orsi, Anais ^{[18
]}

机构：

[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

[11] Chinese Acad Meteorol Sci, Beijing, Peoples R China

[12] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China

[13] Univ Milano Bicocca, Dept Earth & Environm Sci, DISAT, Piazza Sci 1, I-20126 Milan, Italy

[14] Dartmouth Coll, Dept Earth Sci, 6105 Fairchild Hall, Hanover, NH 03755 USA

[15] SRM Univ, Dept Chem Engn, Kattankulathur 603203, Tamil Nadu, India

[16] Univ Tasmania, Sch Biol Sci, Hobart, Tas 7001, Australia

[17] UniLasalle, Specialty Earth Sci & Environm, 19 Rue Pierre Waguet, F-60000 Beauvais, France

[18] Univ Paris Saclay, CEA, CNRS, UVSQ,LSCE,IPSL, F-91198 Gif Sur Yvette, France

[19] Northern Illinois Univ, Inst Study Environm Sustainabil & Energy, De Kalb, IL 60115 USA

[20] Univ Bergen, Geophys Inst, N-5020 Bergen, Norway

[21] Bjerknes Ctr Climate Res, N-5020 Bergen, Norway

[22] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Tianshan Glaciol Stn, Lanzhou, Gansu, Peoples R China

[23] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC, Canada

[24] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China

[25] Northwest Normal Univ, Lanzhou, Gansu, Peoples R China

[26] Univ Wisconsin, Dept Civil & Environm Engn, 660 N Pk St, Madison, WI 53706 USA

[27] Univ Waikato, Fac Sci & Engn, Hamilton, New Zealand

[28] Univ Rochester, Dept Earth & Environm Sci, Rochester, NY 14627 USA

[29] Tonkin & Taylor, ABS Tower,2 Hunter St, Wellington 6011, New Zealand

[30] Carnegie Mellon Univ, Ctr Atmospher Particle Studies, Pittsburgh, PA 15213 USA

来源：

CLIMATE OF THE PAST | 2018年 / 14卷 / 02期

基金：

美国国家科学基金会;

关键词：

NINO-SOUTHERN OSCILLATION; GROUNDING-LINE RETREAT; WEST ANTARCTICA; HIGH-RESOLUTION; CLIMATE-CHANGE; AMUNDSEN SEA; ANNULAR MODE; OCEAN CIRCULATION; 20-1ST CENTURY; SHEET SURFACE;

D O I：

10.5194/cp-14-193-2018

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

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.

引用

页码：193 / 214

页数：22

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