中文摘要：

通过2012年3月和7月在杭州湾邻近海域两个航次实测数据的对比，分析了冬、夏季节叶绿素α浓度（Chla）、浮游植物吸收系数αph（A）和浮游植物比吸收系数αph（A）的时空变化特征。总体看，Chla冬季明显低于夏季，空间上呈条带状分布，最高值分布在123°E附近，向东西两侧递减。αph（A）的时空变化与Chla相似，而口五（A）冬季较夏季高，与冬季辅助色素影响和夏季打包效应有关，空间分布特征与Chla基本相反。研究了两个季节674nm处αph（A）与CNa的线性关系，两者的皮尔逊相关系数为0．938，使用2009年8月长江口邻近海域的独立数据对模型进行验证，反演的均方根误差为1．599mg／m^3结果理想。

英文摘要：

Phytoplankton absorption properties, critical components of inherent optical properties of oceanic and coastal waters, are the bases of chlorophyll-a retrieval using remote sensing. According to the data of chlorophyll-a concentration （Chla）, phyto- plankton absorption coefficient αph （A） and phytoplankton specific coefficient αph （A） acquired from the adjacent waters of Hang- zhou Bay in March and July 2012, the spatial and temporal variations of phytoplankton absorption properties are analyzed. Re- sults show that Chla ranged from 0. 029 mg/m3 to 0. 728 mg/m3 in winter and from 0. 322 mg/ma to 8. 880 mg/m3 in summer, phytoplankton absorption coefficient at 674 nm,apa （674）, ranged from 0. 011 m-1 to 0. 017 m-1 in winter and the range in sum- mer is 0. 018 m-1 to 0. 165 m-1 ,for specific absorption coefficient at 674 nm,αph （674） ,the rang are 0. 025-0. 059 mZ/mg and 0. 007--0. 059 m2/rag in winter and summer, respectively. Spatial distribution of Chla indicated that peak value appeared around the 123°E area in both seasons, αph （A） showed a similar distribution with Chla,while αph （A） almost distribute inversely to Chla. αph （Z） value in winter was higher than that in summer, which may related to pigment packaging effects and pigment composition in phytoplankton cells. At last, the authors study the linear relationship between Chla and αph （;t） at 440 nm and 674 nm, both of which are mostly used wavelength in chlorophyll retrieval from satellite. The relationship between αph （674） and Chla is given in this study with the Pearson correlation coefficients of 0. 938. The accuracy of the αph （674） and Chla model is testified when inde- pendent data acquired from Yangtze estuary in August 2009 put into the function with a root mean square error of 1. 599 mg/m3.