Climate, mass balance and glacial changes on small dome of Collins Ice Cap, King George Island, Antarctica |
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引用本文: | 温家洪,康建成,谢自楚,韩建康.Climate, mass balance and glacial changes on small dome of Collins Ice Cap, King George Island, Antarctica[J].极地研究,1994,5(1):52-61. |
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作者姓名: | 温家洪 康建成 谢自楚 韩建康 |
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摘 要: | Climate,massbalanceandglacialchangesonsmalldomeofCollinsIceCap,KingGeorgeIsland,AntarcticaWenJiahong(温家洪)andKangJiancheng(康建成...
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Climate, mass balance and glacial changes on small dome of Collins Ice Cap, King George Island, Antarctica |
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Abstract: | During 1991/1992 Chinese Antarctic Expedition, a full-year glacial investigations on the small dome of Coffins Ice Cap were carried out, the data from investigations showed that vertical temperature gradients on small dome were about 0. 79℃/100m and 0. 66℃/100m in the summer and in the winter separately. LOwer summer temperature in this area is one Of most important conditions for glacial development. In 1991/1992 the small dome was a weak positive balance year with a mass balance difference of 163 mm, annual ELA was 140m, mass balance gradient was 8.4mm/m and mass balance level was 928mm. Mass balance fluctuations on small dome in 1971-1992 were calculated by a new method, the results revealed that the small dome of Coffins Ice Cap was relatively stable over 21 years. |
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