Experimental study of the interaction of the atmosphere with polynyas/sea ice near Greenland (IKAPOS)

海冰/海洋/大气界面的能量和动量交换过程是极地气候系统的关键过程。热通量和水通量受到与多尼雅有关的开放水域组分的强烈调制，对大气、海洋过程、冰的形成、卤水释放、气体交换和生物产生重要影响。该项目旨在研究迫使和维持格陵兰地区波尼亚的大气过程。研究的重点将是格陵兰北部和西北部沿海地区赤道风系统和海冰/海洋系统之间的相互作用，以及北水波利尼亚(NOW)上空的大气/海冰/海洋交换过程。实验研究的主要工具将是阿尔弗雷德-韦格纳研究所(AWI)的极地飞机。该实验将与AWI和加拿大北极网计划协调进行，是国际极地年(IPY)的一部分。实验数据将用于模型模拟和参数化的验证。

Processes of the exchange of energy and momentum at the sea-ice/ocean/atmosphere interface are key processes for the polar climate system. Heat and moisture fluxes are strongly modulated by open water fractions associated with polynyas, having important consequences for the atmosphere, ocean processes, ice formation, brine release, gas exchange and biology. The project aims at the study of the atmospheric processes forcing and maintaining polynyas in the Greenland area. The study will focus on the interaction between the katabatic wind system and the sea-ice/ocean system in the coastal area of north and northwest Greenland, and on the atmosphere/sea-ice/ocean exchange processes over the North Water Polynya (NOW). The main tool of the experimental study will be the polar aircraft of the Alfred-Wegener Institute (AWI). The experiment will be carried out in coordination with AWI and with the Canadian ArcticNet program, and is part of the International Polar Year (IPY). The data of the experiment will be used for the validation of model simulations and parameterisations.