Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing
We present a reconstruction of the Greenland Ice Sheet surface mass balance (SMB) from 1870 to 2010, based on merged Twentieth Century Reanalysis (20CR) and European Centre for Medium-Range Weather Forecasts (ECMWF) meteorological reanalyses, and we compare our new SMB series with global and regiona...
Published in: | Journal of Geophysical Research: Atmospheres |
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2011
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/13071/ https://doi.org/10.1029/2011JD016387 |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:13071 2023-05-15T16:25:29+02:00 Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing Hanna, Edward Huybrechts, Philippe Cappelen, John Steffen, Konrad Bales, Roger Burgess, Evan McConnell, Joseph Peder Steffensen, Joergen van den Broeke, Michiel Wake, Leanne Bigg, Grant Griffiths, Mike Savas, Deniz 2011-12 https://nrl.northumbria.ac.uk/id/eprint/13071/ https://doi.org/10.1029/2011JD016387 unknown American Geophysical Union Hanna, Edward, Huybrechts, Philippe, Cappelen, John, Steffen, Konrad, Bales, Roger, Burgess, Evan, McConnell, Joseph, Peder Steffensen, Joergen, van den Broeke, Michiel, Wake, Leanne, Bigg, Grant, Griffiths, Mike and Savas, Deniz (2011) Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing. Journal of Geophysical Research, 116 (D24). D24121. ISSN 0148-0227 F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2011 ftunivnorthumb https://doi.org/10.1029/2011JD016387 2022-09-25T05:57:53Z We present a reconstruction of the Greenland Ice Sheet surface mass balance (SMB) from 1870 to 2010, based on merged Twentieth Century Reanalysis (20CR) and European Centre for Medium-Range Weather Forecasts (ECMWF) meteorological reanalyses, and we compare our new SMB series with global and regional climate and atmospheric circulation indices during this period. We demonstrate good agreement between SMB annual series constructed from 20CR and ECMWF reanalyses for the common period of overlap and show statistically significant agreement of long-term modeled snowfall with ice-core-based accumulation data. We analyze variations in SMB for the last 140 years and highlight the periods with significantly increased runoff and decreased SMB since 1870, which have both been enhanced in the period since 1990, as well as interannual variations in SMB linked to Greenland climate fluctuations. We show very good agreement of our SMB series variations with existing, independently derived SMB series (RACMO2) variations for the past few decades of overlap but also a significant disparity of up to ∼200 km3 yr−1 in absolute SMB values due to poorly constrained modeled accumulation reflecting a lack of adequate validation data in southeast Greenland. There is no significant correlation between our SMB time series and a widely referenced time series of North Atlantic icebergs emanating from Greenland for the past century, which may reflect the complex nature of the relationship between SMB and ice dynamical changes. Finally, we discuss how our analysis sheds light on the sensitivity and response of the Greenland Ice Sheet to ongoing and future global climate change, and its contribution to global sea level rise. Article in Journal/Newspaper Greenland ice core Ice Sheet North Atlantic Northumbria University, Newcastle: Northumbria Research Link (NRL) Greenland Journal of Geophysical Research: Atmospheres 116 D24 n/a n/a |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
unknown |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Hanna, Edward Huybrechts, Philippe Cappelen, John Steffen, Konrad Bales, Roger Burgess, Evan McConnell, Joseph Peder Steffensen, Joergen van den Broeke, Michiel Wake, Leanne Bigg, Grant Griffiths, Mike Savas, Deniz Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
We present a reconstruction of the Greenland Ice Sheet surface mass balance (SMB) from 1870 to 2010, based on merged Twentieth Century Reanalysis (20CR) and European Centre for Medium-Range Weather Forecasts (ECMWF) meteorological reanalyses, and we compare our new SMB series with global and regional climate and atmospheric circulation indices during this period. We demonstrate good agreement between SMB annual series constructed from 20CR and ECMWF reanalyses for the common period of overlap and show statistically significant agreement of long-term modeled snowfall with ice-core-based accumulation data. We analyze variations in SMB for the last 140 years and highlight the periods with significantly increased runoff and decreased SMB since 1870, which have both been enhanced in the period since 1990, as well as interannual variations in SMB linked to Greenland climate fluctuations. We show very good agreement of our SMB series variations with existing, independently derived SMB series (RACMO2) variations for the past few decades of overlap but also a significant disparity of up to ∼200 km3 yr−1 in absolute SMB values due to poorly constrained modeled accumulation reflecting a lack of adequate validation data in southeast Greenland. There is no significant correlation between our SMB time series and a widely referenced time series of North Atlantic icebergs emanating from Greenland for the past century, which may reflect the complex nature of the relationship between SMB and ice dynamical changes. Finally, we discuss how our analysis sheds light on the sensitivity and response of the Greenland Ice Sheet to ongoing and future global climate change, and its contribution to global sea level rise. |
format |
Article in Journal/Newspaper |
author |
Hanna, Edward Huybrechts, Philippe Cappelen, John Steffen, Konrad Bales, Roger Burgess, Evan McConnell, Joseph Peder Steffensen, Joergen van den Broeke, Michiel Wake, Leanne Bigg, Grant Griffiths, Mike Savas, Deniz |
author_facet |
Hanna, Edward Huybrechts, Philippe Cappelen, John Steffen, Konrad Bales, Roger Burgess, Evan McConnell, Joseph Peder Steffensen, Joergen van den Broeke, Michiel Wake, Leanne Bigg, Grant Griffiths, Mike Savas, Deniz |
author_sort |
Hanna, Edward |
title |
Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing |
title_short |
Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing |
title_full |
Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing |
title_fullStr |
Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing |
title_full_unstemmed |
Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing |
title_sort |
greenland ice sheet surface mass balance 1870 to 2010 based on twentieth century reanalysis, and links with global climate forcing |
publisher |
American Geophysical Union |
publishDate |
2011 |
url |
https://nrl.northumbria.ac.uk/id/eprint/13071/ https://doi.org/10.1029/2011JD016387 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core Ice Sheet North Atlantic |
genre_facet |
Greenland ice core Ice Sheet North Atlantic |
op_relation |
Hanna, Edward, Huybrechts, Philippe, Cappelen, John, Steffen, Konrad, Bales, Roger, Burgess, Evan, McConnell, Joseph, Peder Steffensen, Joergen, van den Broeke, Michiel, Wake, Leanne, Bigg, Grant, Griffiths, Mike and Savas, Deniz (2011) Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing. Journal of Geophysical Research, 116 (D24). D24121. ISSN 0148-0227 |
op_doi |
https://doi.org/10.1029/2011JD016387 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
116 |
container_issue |
D24 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766014266742145024 |