Study on level-1 requirements of hyperspectral remote sensor for inland waters

The existing remote sensors might be limited to meet the requirement of inland aquatic environments for that they mainly focus on imaging of ocean ecosystem and coastal regions. Inland water regions should be paid more attention for that they are always seriously polluted and affect human life directly. Hence, the paper discussed performance which the next generation of water color hyperspectral sensors may have to meet the demand of inland waters monitoring. It could capture the spectral curve of inland water, meanwhile, avoid waste of bands for storing and memory. The paper referred assignments of existing sensors, analyzed measured R_rs in typical inland water, simulated radiances at top of atmosphere, and considered different applications such as algae bloom monitoring, atmospheric correction. We proposed bands with the spectral width and position, dynamic range, noise-equivalent radiance NEΔL and number of bits in each band. The results of the study may be helpful in designing the next generation remote sensors for inland waters monitoring.