【摘 要】
：
冰川表面能量平衡的研究,是认识和预测冰川对气候变化的响应的重要手段和途径,也是联系冰川物质平衡和冰川融水径流的物理纽带.Austre Lovénbreen冰川位于北极Svalbard
【机 构】
：
中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室天山冰川站,兰州730000国家海洋局极地科学重点实验室,中国极地研究中心,上海200136
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冰川表面能量平衡的研究,是认识和预测冰川对气候变化的响应的重要手段和途径,也是联系冰川物质平衡和冰川融水径流的物理纽带.Austre Lovénbreen冰川位于北极Svalbard地区的新奥尔松,与北极黄河站的直线距离为6.2 km,为多热型山谷冰川.对北极Svalbard地区Austre Lovénbreen冰川的能量-物质平衡过程进行分析,对冰雪消融进行模拟,结合实测物质平衡数据验证模拟结果,用于物质平衡数据的恢复与完善,揭示该区域冰川发育的水热条件以及冰川与气候的关系.得到了如下初步结论：(1)2005-2014年,A冰川物质平衡呈波动状态,具有较低的年振幅和较小的年际变化,有向负平衡发展之势.2008/09年达极大正平衡值,之后一直向负平衡发展.(2)A冰川平衡线在212.10-570.87m之间震荡,多年平均值为391.22m；且零平衡线高度与物质平衡呈显著线性负相关 .(3)A冰川消融期5至8月A冰川能量收入项主要为净辐射,占90％以上,其次为感热通量；能量支出主要为融化热,占95％以上,其次为蒸发潜热通量.(4)A冰川5-9月日平均气温和10-4月日降水量数据分析发现,A冰川物质平衡受气温控制,夏季气温是影响冰川物质平衡变化的主控因子.
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