Abstract:

Based on the conductivity temperature depth (CTD) data obtained within the Bering Sea, Chukchi Sea and south Canada Basin by Chinese First Arctic Research Expedition from July to September 1999, the assemblies of water mass in the three area are analyzed: (1) The water mass in the Bering Sea consists of the Upper Water changed with season, the Intermediate Water and the Deep Water (2) The Chukchi Sea water is influenced by input water of outer sea and variation of sea ice. The hydrographic features are different in July from in August evidently. Water mass assemblies in the Chukchi Sea are defined as distorted water for shallow sea and include the Chukchi summer water and the input water source from the north Pacific Ocean and Arctic Ocean. (3)In the south Canada Basin, the main components of water mass are the Arctic Surface Water effected by variation of sea ice, the Arctic Subsurface Water of Pacific origin, the Arctic Intermediate Water of Atlantic origin and the Arctic Deep Water.