Mass balance of the Lambert Glacier basin,East Antarctica  

作　　者：任贾文 Ian Allison 效存德 秦大河 

机构地区：Laboratory of Ice Core and Cold Regions Environment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China[1] Antarctic CRC and Australian Antarctic Division, GPO Box 252-80, Hobart, Tasmania 7001, Australia[2]

出　　处：《Science China Earth Sciences》2002年第9期842-850,共9页中国科学（地球科学英文版）

基　　金：This work was supported by the Chinese Academy of Sciences (Grant No. KZCX2-303),;the Ministry of Science and Technology of China (Grant No. 2001DIA50040) ; the National Natural Science Foundation of China (Grant Nos. 49971021 and 40071025); We tha

摘　　要：Since it is the largest glacier system in Antarctica, the Lambert Glacier basin plays an important role in the mass balance of the overall Antarctic ice sheet. The observed data and shallow core studies from the inland traverse investigations in recent years show that there are noticeable differences in the distribution and variability of the snow accumulation rate between east and west sides. On the east side, the accumulation is higher on the average and has increased in the past decades, while on the west side it is contrary. The ice movement measurement and the ice flux calculation indicate that the ice velocity and the flux are larger in east than in west, meaning that the major part of mass supply for the glacier is from the east side. The mass budget estimate with the latest data gives that the integrated accumulation over the upstream area of the investigation traverse route is larger than the outflow ice flux by 13%, suggesting that the glacier basin is in a positive mass balance state and the ice thickness will increase if the present climate is keeping.Since it is the largest glacier system in Antarctica, the Lambert Glacier basin plays an important role in the mass balance of the overall Antarctic ice sheet. The observed data and shallow core studies from the inland traverse investigations in recent years show that there are noticeable differences in the distribution and variability of the snow accumulation rate between east and west sides. On the east side, the accumulation is higher on the average and has increased in the past decades, while on the west side it is contrary. The ice movement measurement and the ice flux calculation indicate that the ice velocity and the flux are larger in east than in west, meaning that the major part of mass supply for the glacier is from the east side. The mass budget estimate with the latest data gives that the integrated accumulation over the upstream area of the investigation traverse route is larger than the outflow ice flux by 13%, suggesting that the glacier basin is in a positive mass balance state and the ice thickness will increase if the present climate is keeping.

关 键 词：mass balance  ANTARCTIC ICE Sheet  Lambert Glacier. 

分 类 号：P343.6[天文地球—水文科学]