Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats
| dc.contributor.author | Scambos, T. A. | |
| dc.contributor.author | Berthier, E. | |
| dc.contributor.author | Haran, T. | |
| dc.contributor.author | Shuman, Christopher | |
| dc.contributor.author | Cook, A. J. | |
| dc.contributor.author | Ligtenberg, S. R. M. | |
| dc.contributor.author | Bohlander, J. | |
| dc.date.accessioned | 2022-02-15T13:25:32Z | |
| dc.date.available | 2022-02-15T13:25:32Z | |
| dc.date.issued | 2014-11-24 | |
| dc.description.abstract | The northern Antarctic Peninsula (nAP, < 66° S) is one of the most rapidly changing glaciated regions on earth, yet the spatial patterns of its ice mass loss at the glacier basin scale have to date been poorly documented. We use satellite laser altimetry and satellite stereo-image topography spanning 2001–2010, but primarily 2003–2008, to map ice elevation change and infer mass changes for 33 glacier basins covering the mainland and most large islands in the nAP. Rates of ice volume and ice mass change are 27.7± 8.6 km³ a⁻¹ and 24.9± 7.8 Gt a⁻¹, equal to −0.73 m a⁻¹ w.e. for the study area. Mass loss is the highest for eastern glaciers affected by major ice shelf collapses in 1995 and 2002, where twelve glaciers account for 60% of the total imbalance. However, losses at smaller rates occur throughout the nAP, at both high and low elevation, despite increased snow accumulation along the western coast and ridge crest. We interpret the widespread mass loss to be driven by decades of ice front retreats on both sides of the nAP, and extended throughout the ice sheet due to the propagation of kinematic waves triggered at the fronts into the interior. | en_US |
| dc.description.sponsorship | The ICESat data for this paper are available at the NASA Distributed Active Archive Center at NSIDC (GLA12 – GLAS/ICESat L2 Antarctic and Greenland Ice Sheet Altimetry Data). The SPOT5 HRS data were provided at no cost by CNES through the SPIRIT project. The ASTER data were provided at no cost by NASA/USGS through the Global Land Ice Measurements from Space (GLIMS) project. This work was supported by NASA grant NNX10AR76G to T. Scambos and W. Abdalati, the TOSCA and ISIS programs of the French Space Agency (CNES) to E. Berthier, NASA Cryospheric Program funds to C. Shuman, NSF grant ANT-0732921 to T. Scambos, and the Netherlands Polar Program and European Union Seventh Framework Programme grant 226375 to S. Ligtenberg. | en_US |
| dc.description.uri | https://tc.copernicus.org/articles/14/2809/2020/ | en_US |
| dc.format.extent | 11 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2hwjx-5h20 | |
| dc.identifier.citation | Scambos, T. A. Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats. The Cryosphere, 8 (2014), p 2135–2145. https://doi.org/10.5194/tc-8-2135-2014 | en_US |
| dc.identifier.uri | https://doi.org/10.5194/tc-8-2135-2014 | |
| dc.identifier.uri | http://hdl.handle.net/11603/24267 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | EGU | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | en_US |
| dc.rights | Attribution 4.0 International (CC BY 4.0) | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0001-9606-767X | en_US |