Fifty years of meteo-glaciological change in Toll Glacier, Bennett Island, De Long Islands, Siberian Arctic
| Autor: | Hironori Yabuki, Tsutomu Kadota, Tetsuo Ohata, Keiko Konya |
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| Rok vydání: | 2014 |
| Předmět: |
Arctic sea ice decline
geography geography.geographical_feature_category Ecology Arctic dipole anomaly Tidewater glacier cycle Earth and Planetary Sciences(all) Arctic glacier Glacier Mass balance Aquatic Science Arctic geoengineering Siberia Glacier mass balance Arctic Climatology General Earth and Planetary Sciences Environmental science Physical geography Arctic ecology Ecology Evolution Behavior and Systematics |
| Zdroj: | Polar Science. 8:86-95 |
| ISSN: | 1873-9652 |
| Popis: | Rapid environmental change has been observed in the De Long Islands, Siberian Arctic, where warming has extensively occurred over the area. To quantitatively evaluate glaciological changes since the 1980s, the climate, mass balance, and the equilibrium line altitude (ELA) of Toll Glacier on Bennett Island were analyzed. Air temperature has increased and solid precipitation has decreased since the 1960s, especially after 2000. The cumulative mass balance of Toll Glacier has had a negative trend since the 1960s and reached approximately −20 m water equivalent (w.e.) in 2000, which is one of the largest changes in the Arctic. These changes are much larger than those in the west Russian Arctic. The warming trend is also correlated with the sea ice distribution in the Siberian Arctic and may lead to feedback effects that cause further Arctic warming. |
| Databáze: | OpenAIRE |
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