摘要
利用TOGA—COARE计划的强化观测资料,对《实验3号》科学考察船第一和第二两个航次期间暖池区内感热、潜热和海面净热通量、动量通量和混合层深度、SST变化进行计算和初步分析。指出:上述各量都存在明显的季节内时间尺度变化。从对计算结果的对比分析得出:SST的变化与垂直混合、潜热输送和云对短波辐射的调节作用有比较密切的关系。可以认为,海洋SST季节内时间尺度的变化可能与大气的动力和热力强迫有直接的关系。
Based on the conventional meteorological data, the SST and the mixed layer depth measured by the Shiyan 3 during the TOGA COARE IOP, we analysed and calculated the variations of the SST , mixed layer depth, sea surface wind stress,sensible heat flux, latent heat flux, and net heat flux through the air-sea interface. It shows that there are intrasea-sonal time scale variations in the above variables. Comparing the results based on the data from two different cruises, we conclude that relative shorter time scale variations of SST are probably caused by vertical turbulent mixing, while longer time scale variations of SST may result from the joint effect of wind turbulent mixing, latent heat release and cloud effects on solar radiation. The facts mentioned above imply that the intraseasonal time scale variations of SST may be closely connected with both dynamical and thermodynamical forcings from the atmosphere.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
1993年第S2期63-78,共16页
Periodical of Ocean University of China
基金
TOGA-COARE专项基金
国家教委博士点基金
关键词
海气通量
季节内时间尺度
季节内变化
垂直混合
SST
Air-sea fluxes
intraseasonal time scale
intraseasonal variations
vertical turbulent mixing
SST
