Lakes on the Greenland Ice Sheet: Surface Area and Effect on Energy Balance

该奖项是为了支持一项为期两年的研究，以确定格陵兰冰盖上湖泊的表面积和对能量平衡的影响。 这项工作的目标是确定格陵兰冰盖经历夏季剧烈融化的部分湖泊，雪和冰的浓度，并将这些浓度纳入能量平衡计算。 湖泊、雪和冰的浓度将通过使用卫星被动微波数据来确定，其方法类似于目前常规用于确定海冰浓度和类型的方法。 卫星合成孔径雷达和高级甚高分辨率辐射计数据将作为有关冰盖的辅助信息来源，用于确定湖泊形成的一般地区的位置，并用于确定地面的微波特性。 将通过扩展和应用表面能量平衡模型来确定湖泊形成对冰盖湖区能量平衡的影响。

This award is for support for a two year study to deternine the surface area and effect on energy balance of lakes on the Greenland Ice Sheet. The objectives of the work are to determine the concentration of lakes, snow, and ice on parts of the Greenland ice sheet which experience vigorous summer melting, and to incorporate these concentrations into an energy balance calculation. The concentrations of lakes, snow, and ice will be determined by using satellite passive microwave data, with a method similar to that now routinely used for determining sea ice concentrations and types. Satellite synthetic aperture radar and AVHRR data will serve as auxiliary sources of information about the ice sheet, for location of general areas in which lakes form, and for use in determining microwave characteristics of the ground surface. The effect of lake formation on energy balance in the lake region of the ice sheet will be determined by extending and applying a surface energy balance model.