浅海温度、盐度观测资料的误差分析

Error Analysis on Observational Data of Temperature and Salinity in the Shallow Seas

温度、盐度观测资料的误差分析结果表明：浅海区温、盐的观测误差冬季较小，分别约为０．４℃和０．２；夏季较大，在跃层附近层次由定深偏差所引起的温、盐观测误差分量分别可达１．３２℃和０．１１．温、盐的资料误差更大，夏季跃层处温、盐的日替代资料误差分别可达２．６２℃和０．１７．作者还就造成观测误差、资料误差的原因作了分析，对合理使用历史调查资料提出意见．

The errors on the observational data of temperature (T) and salinity (S) in the shallow seas are analyzed. The results show that: the TS observational errors are smaller in winter with the values of about 0.4℃ and 0.2 respectively, but greater in summer, and especially in the thermocline layers, where the TS observational error components caused by depth deviation can reach 1.32℃ and 0.11, respectively. The TS data errors are much greater, e.g. in the summertime thermocline layers, where the TS daily substituting data errors can come up to 2.62℃ and 0.17, respectively. The reasons for the observational error and data error have also been analysed,and the suggestions for using such data have been proposed.