应用航天遥感信息对黄、渤海冬季初级生产力的估算

ESTIMATING THE PRIMARY PRODUCTIVITY OF THE HUANG HAI AND BO HAI SEAS BY USING SATELLITE REMOTE SENSING DATA

本文根据黄、渤海航天遥感信息,将这两个海区的叶绿素 a 含量的遥感数据与同期实测数据进行了比较研究,求得两种数据的相关系数为 0.85。本文还对遥感原始处理图象作几何纠正,并将它转换成黄、渤海区叶绿素 a 含量分布线画解译图。并进一步应用真光层初级生产力的经验式,计算得到了黄、渤海23个水域的冬季初级生产力值。

It has long been a difficult task to use old methods to estimate rapidly andsynoptically the primary productivity of sea waters. The satellite remote sensing datahas been used to analyse the chlorophyll--a content in the Huang Hai and Bo Hai Seasin this paper. It demonstrates that the correlation between the satellite-derived cont-ent and the measured content of the both seas in the same month seems very. close,i.e., the distribution pattern of chlorophyll--a agree with the accumulated knowledgefrom the productive practice for many years. Hence. the originally processed--imagehas been rectified by the geometric deformation, a symbolic chart for interpretatingthe chlorophylla content distribution is obtained. Based on the above work, thevalues for primary productivity in the euphotic layer of 23 waters in Huang Hai andBo Hai Seas are calculated by using the empirical formula. It is obvious that thiswork should be considered important not only to science, but also in directing thefisheries and mariculture.