Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change
Aldegondabreen is a relatively small (5.3 km2) land-terminating glacier located in Nordeskiöld Land of Svalbard, ~10 km southwest of Barentsburg. Cumulative mass balance during 2002–20 equalled −21.79 m w.e., which corresponds to 37% of the total mass loss. The annual mass balance (Ba) varied from −...
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Cambridge University Press
2023-09-01
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| Series: | Annals of Glaciology |
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| author | Anton Terekhov Uliana Prokhorova Sergey Verkulich Vasiliy Demidov Olga Sidorova Mikhail Anisimov Kseniia Romashova |
| author_facet | Anton Terekhov Uliana Prokhorova Sergey Verkulich Vasiliy Demidov Olga Sidorova Mikhail Anisimov Kseniia Romashova |
| author_sort | Anton Terekhov |
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| description | Aldegondabreen is a relatively small (5.3 km2) land-terminating glacier located in Nordeskiöld Land of Svalbard, ~10 km southwest of Barentsburg. Cumulative mass balance during 2002–20 equalled −21.79 m w.e., which corresponds to 37% of the total mass loss. The annual mass balance (Ba) varied from −0.24 to −2.19 m w.e., while the winter mass balance (Bw) ranged between 0.36 and 0.85 m w.e. Ba and Bw were strongly correlated with the positive degree-day sums and solid precipitation amounts, respectively, measured at the Barentsburg weather station. There was also a strong correlation (r = 0.76) between Ba and Bw, which shows that winter accumulation amplifies the consecutive summer ice melt by changing the surface albedo. The trend in both observational series is not detectable because the period from 2005 to 2013 was characterized by relatively high Bw and not very negative Ba values. This was also observed on the other Svalbard glaciers, and was related to prevailing north-westerly flows over Svalbard during the summer. Therefore, the decadal periodicity of the Aldegondabreen mass balance follows general archipelago patterns that are determined by regional-scale factors. Thus, the surface mass-balance time series, which is now the longest one in the central part of the Spitsbergen Island, is representative for the archipelago. |
| format | Article |
| id | doaj-art-8671abc5a8bf4bd182df4797fd98fda4 |
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| issn | 0260-3055 1727-5644 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Cambridge University Press |
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| series | Annals of Glaciology |
| spelling | doaj-art-8671abc5a8bf4bd182df4797fd98fda42025-08-20T02:27:42ZengCambridge University PressAnnals of Glaciology0260-30551727-56442023-09-016422523510.1017/aog.2023.40Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate changeAnton Terekhov0https://orcid.org/0000-0002-8300-6883Uliana Prokhorova1Sergey Verkulich2Vasiliy Demidov3Olga Sidorova4Mikhail Anisimov5Kseniia Romashova6Geography of Polar Regions Department, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaOcean–Atmosphere Interaction Department, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaGeography of Polar Regions Department, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaGeography of Polar Regions Department, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaLaboratory of the Experimental Climatology of the Arctic, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaGeography of Polar Regions Department, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaHydrology of River Deltas and Water Resources Department, Arctic and Antarctic Research Institute, Saint Petersburg, RussiaAldegondabreen is a relatively small (5.3 km2) land-terminating glacier located in Nordeskiöld Land of Svalbard, ~10 km southwest of Barentsburg. Cumulative mass balance during 2002–20 equalled −21.79 m w.e., which corresponds to 37% of the total mass loss. The annual mass balance (Ba) varied from −0.24 to −2.19 m w.e., while the winter mass balance (Bw) ranged between 0.36 and 0.85 m w.e. Ba and Bw were strongly correlated with the positive degree-day sums and solid precipitation amounts, respectively, measured at the Barentsburg weather station. There was also a strong correlation (r = 0.76) between Ba and Bw, which shows that winter accumulation amplifies the consecutive summer ice melt by changing the surface albedo. The trend in both observational series is not detectable because the period from 2005 to 2013 was characterized by relatively high Bw and not very negative Ba values. This was also observed on the other Svalbard glaciers, and was related to prevailing north-westerly flows over Svalbard during the summer. Therefore, the decadal periodicity of the Aldegondabreen mass balance follows general archipelago patterns that are determined by regional-scale factors. Thus, the surface mass-balance time series, which is now the longest one in the central part of the Spitsbergen Island, is representative for the archipelago.https://www.cambridge.org/core/product/identifier/S026030552300040X/type/journal_articleArctic glaciologyclimate changeglacier mass balanceglacier monitoringice/atmosphere interactions |
| spellingShingle | Anton Terekhov Uliana Prokhorova Sergey Verkulich Vasiliy Demidov Olga Sidorova Mikhail Anisimov Kseniia Romashova Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change Annals of Glaciology Arctic glaciology climate change glacier mass balance glacier monitoring ice/atmosphere interactions |
| title | Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change |
| title_full | Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change |
| title_fullStr | Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change |
| title_full_unstemmed | Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change |
| title_short | Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change |
| title_sort | two decades of mass balance observations on aldegondabreen spitsbergen interannual variability and sensitivity to climate change |
| topic | Arctic glaciology climate change glacier mass balance glacier monitoring ice/atmosphere interactions |
| url | https://www.cambridge.org/core/product/identifier/S026030552300040X/type/journal_article |
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