南海夏季风期间海-气通量整体输送系数分析  

ANALYSIS OF AIR-SEA FLUXES BULK TRANSFER COEFFICIENTSDURING SOUTH CHINA SEA SUMMER MONSOON

作　　者：蒋国荣[1,2] 何金海[1,3] 王东晓[3] 阎俊岳[4] 姚华栋[4] 

机构地区：[1]南京气象学院大气科学系 [2]解放军理工大学气象学院二系 [3]中国科学院热带海洋环境动力学实验室,广州510301 [4]中国气象局国家气候中心

出　　处：《气象学报》2004年第3期338-346,共9页Acta Meteorologica Sinica

基　　金：NSFC重点基金 40 13 60 10项目;国家自然科学基金 90 2 110 11与 40 0 75 0 0 3项目联合赞助

摘　　要：利用 2 0 0 0年南海海 气通量观测资料 ,建立了南海季风期间海 气通量整体输送系数的计算公式 ;同时 ,利用2 0 0 0和 2 0 0 2年观测资料与邻近海区同类公式进行了对比试验研究。结果表明 ,使用邻近海区的同类公式计算的海 气通量的误差高于新建立公式所得结果。因此 ,开展南海海and 2002 “South China Sea Air Sea Flux Measurement' project are the extension of Xisha tower air sea flux measurement which include in the South China Sea Monsoon Experiment (SCSMEX) program developed over the South China Sea (SCS) in 1998. In this paper, firstly, the bulk transfer coefficients variation feature with wind speed in unstable stratification was calculated and analyzed by means of these two air sea flux gradient measurement data before and after SCS monsoon onset. Research showed, in general , that the bulk transfer coefficients corresponded well with wind speed especially in high speed stage, but there was a little dispersion in low speed stage. The further study found that the main reason causing dispersion had relation to stratification stability and air sea temperature difference could be used to replace the stratification stability. Based on above results, the bulk transfer coefficients calculation formula being adapted to the unstability stratification atmosphere over SCS was constructed and tested. Secondly, some representative similar calculation formula of the bulk transfer coefficients, including Yan's results developed from 1998 SCSMEX data at same place and Kara's and Xu's results developed by means of west Pacific Ocean data, was chosen to compare with the formula in this paper on the basis of the model results calculated by these two observation. The analysis results showed that Yan's results had the lower value tendency because the formula was fitted by quite discrete data; and Xu's results had obvious system deviation because of different region and different season data. Kara's scheme was quite complete, which was adapted to both unstable stratification and stable stratification and also had good representative because ten years observation data in west Pacific Ocean including deep and shallow sea was used to examined it's accuracy. But when it was used in SCS, the estimate flux value would be lower in low speed stage but higher in high speed stage although the system dev

关 键 词：夏季风 海-气通量 整体输送系数 南海 

分 类 号：P425.42[天文地球—大气科学及气象学]