摘要
根据对1998年南海中部、北部航次的海水盐度观测资料以及GPCP-1DD(Global Precipitation Climatology Project,1 Degree Daily Precipitation Estimate)降雨资料,研究了夏季风期间降雨过程对南海上层盐度的可能影响。个例和合成分析表明,当有降雨过程发生时,降雨对南海上层盐度的影响深度为85—110m,上层盐度恢复所需要的时间为14—42d左右。此外还利用NCEP/NCAR(National Center for Environmental Prediction/National Center for Atmospheric Research)再分析资料的逐月风场资料以及基于法国AVISO(Archiving,Validation and Interpretation of Satellite Oceanographic Data)提供的融合海平面高度异常资料计算的地转流场分析平流效应对其可能产生的影响。
By using the observed salinity data collected at four sites during the South China Sea Monsoon Experiment （SCSMEX） and the precipitation data of Global Precipitation Climatology Project-1 Degree Daily Precipitation Estimate （GPCP-1DD）, we attempts to reveal the effect of precipitation on the salinity of upper ocean in the South China Sea （SCS）. The results show that the adjustment time of the salinity to the precipitation was about 14-42 days, and the effect of precipitation on salinity could reach to a depth of 85-110 m. Advection affection is also investigated based on monthly wind vectors （obtained from National Center for Environmental Prediction/National Center for Atmospheric Research Analysis data） and geostrophic current field calculated from merged altimeter data.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2007年第3期11-17,共7页
Journal of Tropical Oceanography
基金
国家自然科学基金资助项目(40176006)
关键词
夏季
上层盐度
降雨过程
响应过程
summer
salinity in upper SCS
precipitation
adjustment time
