Two ice concentration algorithms benefitting from 85 GHz Special Sensor Microwave/Imager data: a comparison

Sea ice concentration maps retrieved from spaceborne passive microwave sensor data such as from the Special Sensor Microwave Imager (SSM/) often suffer from the coarse spatial resolution compared to synthetic aperture radar (SAR) data. However, SAR images are still difficult to interpret and therefore there is a need to improve the spatial resolution of the above-mentioned sea ice concentration maps. Under certain circumstances this can be achieved using 85 GHz SSM/I data together with the SEALION and the ASI sea ice algorithms.