ROSIS IMAGING SPECTROMETER AND ITS POTENTIAL FOR OCEAN PARAMETER MEASUREMENTS (AIRBORNE AND SPACE-BORNE)

The reflective optics system imaging spectrometer (ROSIS) is an advanced sensor particularly tailored to measure ocean parameters, including chlorophyll fluorescence. Further applications are described. Emphasis is placed on the wide range of applications for both airborne and space-borne instruments, including water biomass detection and water quality measurements, atmospheric applications as well as those over ice and land surfaces. It provides less-than-or-equal-to 5 nm spectral resolution at 128 selectable spectral bands, dispersed by a grating onto a matrix detector array and 32-degrees field of view, which may be more than doubled when matching more than one optical module, especially for space-borne missions where a high repetition rate is required. A ROSIS airborne prototype is currently under development in a joint project of DLR, GKSS and MBB. This instrument will become operational in mid-1991. The ROSIS concept and design is outlined, as well as the planning status for extensions.