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利用中国北极科学考察队在北冰洋浮冰站和“雪龙号”考察船获得的大气边界层观测资料,采用涡旋相关法和廓线法对1999年8月19～24日北冰洋浮冰和开阔水面近地层的热量平衡参数进行了估算.结果表明,冰面的净辐射仅为开阔海面的8％,主要消耗于感热输送和融化,冰面损失的热量超过了吸收的净辐射,并由冰的深层热传导来补偿,潜热通量对冰面热平衡的贡献较小.开阔海面吸收的净辐射主要以潜热和感热向大气输送,分别占52%和25%,剩余部分向深层水体传导.观测事实说明北冰洋夏季开阔海面/大气和冰面/大气之间的热量交换过程有显著差异,开阔洋面有大量的水汽向大气输送,这对研究北冰洋地区海/冰/气相互作用对气候过程的影响是十分重要的.
Based on the observation data of the atmospheric boundary layer acquired by the Arctic scientific expedition team at the Arctic ice flooding station and the “Xue Long” research ship, the vortex correlation method and the profile method were used to analyze the ice floes and open ice of the Arctic Ocean from August 19 to August 1999 The results show that the net radiation of ice surface is only 8% of the open sea surface, which is mainly consumed by sensible heat transfer and thawing, and the heat loss caused by ice surface exceeds the net radiation absorbed by The latent heat flux contributes less to the thermal equilibrium of the ice surface.The net radiation absorbed by the open sea surface is mainly transported to the atmosphere with latent heat and sensible heat, accounting for 52% and 25% of the total, respectively, and the rest is transmitted to the deep water. The observation shows that there is a significant difference in the heat exchange process between the open ocean surface / atmosphere and the ice / atmosphere over the Arctic Ocean in summer, and large amounts of water vapor are transported to the atmosphere on the open ocean surface. This is of great significance to the study on the relationship between the sea ice / The impact is very important.