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�ꡡ�ܡ�Strong coupling (?) among lower atmosphre-ocean-aerosol-cloud in the Arctic Ocean
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Strong coupling (?) among lower atmosphre-ocean-aerosol-cloud in the Arctic Ocean (ƣ�� ���� ����) ȯɽ�� :
The horizontal extent of sea-ice is decreasing in the Arctic Ocean. In contrast to tropical region, the low-level cloud is predominant and plays an essential role in the radiative heat balance in the Arctic region. Some researchers suggest that increasing low-level cloud cover and resulted increasing longwave radiation would accelerate the melting of sea-ice. Before discussing the strong coupling among the sea ice, the albedo, and the clouds (termed ice-albedo and cloud-radiation feedback), we have to know how sea surface conditions (SST, wind speed, salinity) affect the number density of CCN, because optical properties of low-level cloud are controlled by CCN in the boundary layer. Many researchers measured the size distribution and chemical components of aerosols in the Arctic region. Most of them discussed the source of aerosols by using trajectory analysis, and never discussed the mesoscale inhomogeneity of horizontal and vertical distribution of aerosols in t he Arctic Ocean. By making use of the Arctic cruises of R/V MIRAI (2002 and 2004), we tried to study strong coupling among air-ocean-aerosol-cloud in the Arctic Ocean.
�ߵ���Ǯ������ʿ�������Υ�����˾��ˤĤ��� (�� ����) ȯɽ�� :
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