Key Words

: water quality, atmospheric correction, air-water interface, imaging spectroscopy An extension of the atmospheric correction model A TCOR 4 is presented for the pre-correction of inland water. In this study, the visibility is obtimized under the assumption that the water-leaving radiance is zero in the near infrared (dark target approach) leading to a pixel based correction. A sen-sitivity analysis is performed with respect to the retrieval of chlorophyll a. It is shown that the assumptions made for the pre-correction is crucial for the relative and absolute lake water constituent concentration. 1