【摘要】 利用地物光谱仪研究了太湖DOC浓度与反射光谱之间的关系,结果表明:DOC浓度与745nm附近的反射率及665、695 nm处一阶微分具有较好的相关性,可以用来745 nm处反射率及6656、95 nm处一阶微分估算DOC浓度。通过对模拟MERIS数据的分析,得出太湖的DOC浓度也可以用MERIS的第10波段及第9波段与12波段的比值有效地估测。更多还原

【Abstract】 Reflectance spectral was measured by using ASD FieldSpec HandHeld radiometer.Water samples for suspended solids concentration,chlorophyll-a,DOC measurements were collected at the same time.Based on the analysis of reflectance spectral and DOC concentration,it was found that the reflectance at the band 745nm and the first derivative at 665nm and 695nm could be used to retrieve DOC concentration.MERIS data became a potential remote sensing data for monitoring inland lake water’s quality due to its high spectral,time and radiance resolution.By simulating MERIS data based on spectral reflectance,it was found that DOC concentration could be effectively estimated at ratio of band 10 and ratio of band 9 and 12.更多还原