【摘要】 现场测量了太湖水体表面的高光谱离水辐射率和相应水体的叶绿紊a,并采用经验和分析的方法研究了叶绿素a光谱模式,结果发现:叶绿素a与双波段(675nm／709nm≤1)经验相关性较好,但在不同时间和空间参数变化较大;在没有水华的水体中,采用分析算法获得叶绿素a浓度的参数相对稳定,可在较大范围内使用。更多还原

【Abstract】 Retrieval of chlorophyll a concentration with experimental and analytical methods by measuring hyperspectral water leaving radiance and corresponding chlorophyll a concentration in situ, results showed that there was better experimental relationship between chlorophyll a concentration and double band ratio (675nm/ 709nm≤1),but parameters varied greatly with different time and space; The parameters were relatively stable when chlorophyll a concentration was analytically retrieved in waters without water bloom, and which can be used widely.更多还原