The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years
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. Comparison of the Roosevelt Island Cl...
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2017
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ftcdlib:oai:escholarship.org:ark:/13030/qt4r39n0xj 2023-06-18T03:38:12+02:00 The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years Bertler, Nancy AN Conway, Howard Dahl-Jensen, Dorthe Emanuelsson, Daniel B Winstrup, Mai Vallelonga, Paul T Lee, James E Brook, Ed J Severinghaus, Jeffrey P Fudge, Taylor J Keller, Elizabeth D Baisden, W Troy Hindmarsh, Richard CA Neff, Peter D Blunier, Thomas Edwards, Ross Mayewski, Paul A Kipfstuhl, Sepp Buizert, Christo Canessa, Silvia Dadic, Ruzica Kjær, Helle A Kurbatov, Andrei Zhang, Dongqi Waddington, Ed D Baccolo, Giovanni Beers, Thomas Brightley, Hannah J Carter, Lionel Clemens-Sewall, David Ciobanu, Viorela G Delmonte, Barbara Eling, Lukas Ellis, Aja A Ganesh, Shruthi Golledge, Nicholas R Haines, Skylar A Handley, Michael Hawley, Robert L Hogan, Chad M Johnson, Katelyn M Korotkikh, Elena Lowry, Daniel P Mandeno, Darcy McKay, Robert M Menking, James A Naish, Timothy R Noerling, Caroline Ollive, Agathe Orsi, Anaïs Proemse, Bernadette C Pyne, Alexander R Pyne, Rebecca L Renwick, James Scherer, Reed P Semper, Stefanie Simonsen, Marius Sneed, Sharon B Steig, Eric J Tuohy, Andrea Venugopal, Abhijith Ulayottil Valero-Delgado, Fernando Venkatesh, Janani Wang, Feitang Wang, Shimeng Winski, Dominic A Winton, Victoria HL Whiteford, Arran Xiao, Cunde Yang, Jiao Zhang, Xin 2017-08-01 application/pdf https://escholarship.org/uc/item/4r39n0xj unknown eScholarship, University of California qt4r39n0xj https://escholarship.org/uc/item/4r39n0xj public Climate Action article 2017 ftcdlib 2023-06-05T17:58:58Z 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. Comparison of the Roosevelt Island Climate Evolution (RICE) ice core records with climate reanalysis data for the 1979–2012 calibration period shows that RICE records reliably capture temperature and snow precipitation variability of the region. RICE is compared with data from West Antarctica (West Antarctic Ice Sheet Divide Ice Core) and the western (Talos Dome) and eastern (Siple Dome) Ross Sea. For most of the past 2,700 years, the eastern Ross Sea was warming with perhaps increased snow accumulation and decreased sea ice extent. However, West Antarctica cooled whereas the western Ross Sea showed no significant temperature trend. From the 17th Century onwards, this relationship changes. All three regions now show signs of warming, with snow accumulation declining in West Antarctica and the eastern Ross Sea, but increasing in the western Ross Sea. Analysis of decadal to centennial-scale climate variability superimposed on the longer term trend reveal that periods characterised by opposing temperature trends between the Eastern and Western Ross Sea have occurred since the 3rd Century but are masked by longer-term trends. This pattern here is referred to as the Ross Sea Dipole, caused by a sensitive response of the region to dynamic interactions of the Southern Annual Mode and tropical forcings. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core Ice Sheet Roosevelt Island Ross Sea Sea ice West Antarctica University of California: eScholarship Antarctic Ross Sea West Antarctica West Antarctic Ice Sheet Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Roosevelt Island ENVELOPE(-162.000,-162.000,-79.283,-79.283) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Climate Action |
spellingShingle |
Climate Action Bertler, Nancy AN Conway, Howard Dahl-Jensen, Dorthe Emanuelsson, Daniel B Winstrup, Mai Vallelonga, Paul T Lee, James E Brook, Ed J Severinghaus, Jeffrey P Fudge, Taylor J Keller, Elizabeth D Baisden, W Troy Hindmarsh, Richard CA Neff, Peter D Blunier, Thomas Edwards, Ross Mayewski, Paul A Kipfstuhl, Sepp Buizert, Christo Canessa, Silvia Dadic, Ruzica Kjær, Helle A Kurbatov, Andrei Zhang, Dongqi Waddington, Ed D Baccolo, Giovanni Beers, Thomas Brightley, Hannah J Carter, Lionel Clemens-Sewall, David Ciobanu, Viorela G Delmonte, Barbara Eling, Lukas Ellis, Aja A Ganesh, Shruthi Golledge, Nicholas R Haines, Skylar A Handley, Michael Hawley, Robert L Hogan, Chad M Johnson, Katelyn M Korotkikh, Elena Lowry, Daniel P Mandeno, Darcy McKay, Robert M Menking, James A Naish, Timothy R Noerling, Caroline Ollive, Agathe Orsi, Anaïs Proemse, Bernadette C Pyne, Alexander R Pyne, Rebecca L Renwick, James Scherer, Reed P Semper, Stefanie Simonsen, Marius Sneed, Sharon B Steig, Eric J Tuohy, Andrea Venugopal, Abhijith Ulayottil Valero-Delgado, Fernando Venkatesh, Janani Wang, Feitang Wang, Shimeng Winski, Dominic A Winton, Victoria HL Whiteford, Arran Xiao, Cunde Yang, Jiao Zhang, Xin The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years |
topic_facet |
Climate Action |
description |
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. Comparison of the Roosevelt Island Climate Evolution (RICE) ice core records with climate reanalysis data for the 1979–2012 calibration period shows that RICE records reliably capture temperature and snow precipitation variability of the region. RICE is compared with data from West Antarctica (West Antarctic Ice Sheet Divide Ice Core) and the western (Talos Dome) and eastern (Siple Dome) Ross Sea. For most of the past 2,700 years, the eastern Ross Sea was warming with perhaps increased snow accumulation and decreased sea ice extent. However, West Antarctica cooled whereas the western Ross Sea showed no significant temperature trend. From the 17th Century onwards, this relationship changes. All three regions now show signs of warming, with snow accumulation declining in West Antarctica and the eastern Ross Sea, but increasing in the western Ross Sea. Analysis of decadal to centennial-scale climate variability superimposed on the longer term trend reveal that periods characterised by opposing temperature trends between the Eastern and Western Ross Sea have occurred since the 3rd Century but are masked by longer-term trends. This pattern here is referred to as the Ross Sea Dipole, caused by a sensitive response of the region to dynamic interactions of the Southern Annual Mode and tropical forcings. |
format |
Article in Journal/Newspaper |
author |
Bertler, Nancy AN Conway, Howard Dahl-Jensen, Dorthe Emanuelsson, Daniel B Winstrup, Mai Vallelonga, Paul T Lee, James E Brook, Ed J Severinghaus, Jeffrey P Fudge, Taylor J Keller, Elizabeth D Baisden, W Troy Hindmarsh, Richard CA Neff, Peter D Blunier, Thomas Edwards, Ross Mayewski, Paul A Kipfstuhl, Sepp Buizert, Christo Canessa, Silvia Dadic, Ruzica Kjær, Helle A Kurbatov, Andrei Zhang, Dongqi Waddington, Ed D Baccolo, Giovanni Beers, Thomas Brightley, Hannah J Carter, Lionel Clemens-Sewall, David Ciobanu, Viorela G Delmonte, Barbara Eling, Lukas Ellis, Aja A Ganesh, Shruthi Golledge, Nicholas R Haines, Skylar A Handley, Michael Hawley, Robert L Hogan, Chad M Johnson, Katelyn M Korotkikh, Elena Lowry, Daniel P Mandeno, Darcy McKay, Robert M Menking, James A Naish, Timothy R Noerling, Caroline Ollive, Agathe Orsi, Anaïs Proemse, Bernadette C Pyne, Alexander R Pyne, Rebecca L Renwick, James Scherer, Reed P Semper, Stefanie Simonsen, Marius Sneed, Sharon B Steig, Eric J Tuohy, Andrea Venugopal, Abhijith Ulayottil Valero-Delgado, Fernando Venkatesh, Janani Wang, Feitang Wang, Shimeng Winski, Dominic A Winton, Victoria HL Whiteford, Arran Xiao, Cunde Yang, Jiao Zhang, Xin |
author_facet |
Bertler, Nancy AN Conway, Howard Dahl-Jensen, Dorthe Emanuelsson, Daniel B Winstrup, Mai Vallelonga, Paul T Lee, James E Brook, Ed J Severinghaus, Jeffrey P Fudge, Taylor J Keller, Elizabeth D Baisden, W Troy Hindmarsh, Richard CA Neff, Peter D Blunier, Thomas Edwards, Ross Mayewski, Paul A Kipfstuhl, Sepp Buizert, Christo Canessa, Silvia Dadic, Ruzica Kjær, Helle A Kurbatov, Andrei Zhang, Dongqi Waddington, Ed D Baccolo, Giovanni Beers, Thomas Brightley, Hannah J Carter, Lionel Clemens-Sewall, David Ciobanu, Viorela G Delmonte, Barbara Eling, Lukas Ellis, Aja A Ganesh, Shruthi Golledge, Nicholas R Haines, Skylar A Handley, Michael Hawley, Robert L Hogan, Chad M Johnson, Katelyn M Korotkikh, Elena Lowry, Daniel P Mandeno, Darcy McKay, Robert M Menking, James A Naish, Timothy R Noerling, Caroline Ollive, Agathe Orsi, Anaïs Proemse, Bernadette C Pyne, Alexander R Pyne, Rebecca L Renwick, James Scherer, Reed P Semper, Stefanie Simonsen, Marius Sneed, Sharon B Steig, Eric J Tuohy, Andrea Venugopal, Abhijith Ulayottil Valero-Delgado, Fernando Venkatesh, Janani Wang, Feitang Wang, Shimeng Winski, Dominic A Winton, Victoria HL Whiteford, Arran Xiao, Cunde Yang, Jiao Zhang, Xin |
author_sort |
Bertler, Nancy AN |
title |
The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years |
title_short |
The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years |
title_full |
The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years |
title_fullStr |
The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years |
title_full_unstemmed |
The Ross Sea Dipole – Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years |
title_sort |
ross sea dipole – temperature, snow accumulation and sea ice variability in the ross sea region, antarctica, over the past 2,700 years |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/4r39n0xj |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(158.000,158.000,-73.000,-73.000) ENVELOPE(-162.000,-162.000,-79.283,-79.283) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Antarctic Ross Sea West Antarctica West Antarctic Ice Sheet Siple Talos Dome Roosevelt Island Siple Dome |
geographic_facet |
Antarctic Ross Sea West Antarctica West Antarctic Ice Sheet Siple Talos Dome Roosevelt Island Siple Dome |
genre |
Antarc* Antarctic Antarctica ice core Ice Sheet Roosevelt Island Ross Sea Sea ice West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica ice core Ice Sheet Roosevelt Island Ross Sea Sea ice West Antarctica |
op_relation |
qt4r39n0xj https://escholarship.org/uc/item/4r39n0xj |
op_rights |
public |
_version_ |
1769003093847965696 |