globalchange  > 影响、适应和脆弱性
DOI: 10.5194/cp-14-193-2018
Scopus ID: 2-s2.0-85042533774
The Ross Sea Dipole-temperature, snow accumulation and sea ice variability in the Ross Sea region, Antarctica, over the past 2700 years
Author: Bertler N.A.N.; Conway H.; Dahl-Jensen D.; Emanuelsson D.B.; Winstrup M.; Vallelonga P.T.; Lee J.E.; Brook E.J.; Severinghaus J.P.; Fudge T.J.; Keller E.D.; Troy Baisden W.; Hindmarsh R.C.A.; Neff P.D.; Blunier T.; Edwards R.; Mayewski P.A.; Kipfstuhl S.; Buizert C.; Canessa S.; Dadic R.; Kjær H.A.; Kurbatov A.; Zhang D.; Waddington E.D.; Baccolo G.; Beers T.; Brightley H.J.; Carter L.; Clemens-Sewall D.; Ciobanu V.G.; Delmonte B.; Eling L.; Ellis A.; Ganesh S.; Golledge N.R.; Haines S.; Handley M.; Hawley R.L.; Hogan C.M.; Johnson K.M.; Korotkikh E.; Lowry D.P.; Mandeno D.; McKay R.M.; Menking J.A.; Naish T.R.; Noerling C.; Ollive A.; Orsi A.; Proemse B.C.; Pyne A.R.; Pyne R.L.; Renwick J.; Scherer R.P.; Semper S.; Simonsen M.; Sneed S.B.; Steig E.J.; Tuohy A.; Ulayottil Venugopal A.; Valero-Delgado F.; Venkatesh J.; Wang F.; Wang S.; Winski D.A.; Holly W.; Whiteford A.; Xiao C.; Yang J.; Zhang X.
Source Publication: Climate of the Past
ISSN: 18149324
Publishing Year: 2018
Volume: 14, Issue:2
pages begin: 193
pages end: 214
Language: 英语
Scopus Keyword: climate variation ; ice core ; Little Ice Age ; paleoclimate ; polynya ; precipitation (climatology) ; sea ice ; snow accumulation ; Antarctica ; Roosevelt Island [West Antarctica] ; Ross Sea ; Southern Ocean ; West Antarctica
English Abstract: 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. © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License.
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被引频次[WOS]:15   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Appears in Collections:影响、适应和脆弱性

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Affiliation: Antarctic Research Centre, Victoria University of Wellington, Wellington, 6012, New Zealand; GNS Science, Lower Hutt, 5010, New Zealand; Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, United States; Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, Copenhagen, 2100, Denmark; College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97330, United States; Scripps Institution of Oceanography, UC San DiegoCA 92093, United States; British Antarctic Survey, High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom; Physics and Astronomy, Curtin University, Perth, WA, Australia; Climate Change Institute, University of Maine, Orono, ME 04469-5790, United States; Alfred Wegner Institute, Bremen, Germany; Chinese Academy of Meteorological Sciences, Beijing, China; State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, China; DISAT, Department of Earth and Environmental Sciences, University Milano-Bicocca, Piazza della Scienza 1, Milano, 20126, Italy; Department of Earth Sciences, Dartmouth College, 6105 Fairchild Hall, Hanover, NH 03755, United States; Department of Chemical Engineering, SRM University, Kattankulathur, Kancheepuram Dt., Tamil Nadu, 603203, India; University of Tasmania, School of Biological Sciences, Hobart, TAS 7001, Australia; Specialty of Earth Sciences and Environment, UniLasalle, 19 rue Pierre Waguet, Beauvais, 60000, France; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, Université Paris-Saclay, Gif-sur-Yvette, 91198, France; Institute for the Study of the Environment, Sustainability and Energy, Northern Illinois University, DeKalb, IL 60115, United States; Geophysical Institute, University of Bergen, Bjerknes Centre for Climate Research, Bergen, 5020, Norway; Tianshan Glaciology Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, China; Department of Earth and Ocean Sciences, University of British ColumbiaBC, Canada; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China; Northwest Normal University, Lanzhou, Gansu, China; University of Wisconsin-Madison, Department of Civil and Environmental Engineering, 660 N. Park St., Madison, United States; Faculty of Science and Engineering, University of Waikato, Hamilton, New Zealand; University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY 14627, United States; Tonkin and Taylor, ABS Tower, 2 Hunter St., Wellington, 6011, New Zealand; Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213, United States; British Antarctic Survey, Cambridge, CB3 0ET, United Kingdom

Recommended Citation:
Bertler N.A.N.,Conway H.,Dahl-Jensen D.,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,2018-01-01,14(2)
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