Variability and Climatic Significance of Snow in the Artic Basin

北极积冰顶部的积雪是影响北部高纬度地区夏季气候的一个重要因素，对冰的长期质量平衡和稳定性以及对世界其他地区的潜在影响都有影响。它的状态也可以作为大气二氧化碳浓度增加引起的气候变化的指标。这项工作将侧重于从DMSP卫星图像中产生北极盆地积雪融化和地表反照率的十年网格化数据集。该项目之所以重要，是因为这样一个数据库在对复杂的冰-反照率反馈效应的科学研究中是可侵入的，并最终可能导致在气候系统的数值模型中更好地描述这种过程。

The snow on top of the Arctic pack ice is an important factor of the summer climates in the northern high latitudes, with implications for the long-term mass balance and stability of the ice and potential impact on other parts of the world. Its state may also serve as an indicator of climatic change induced by increasing atmospheric concentrations of carbon dioxide. This effort will focus on production of a gridded ten-year data set of snow melt and surface albedo in the Arctic Basin from DMSP satellite imagery. The project is important because such a data base would be invaulable in scientific studies of the complex ice-albedo feedback effects and may eventually lead to better formulation of such processes in numerical models of the climate system.