Analysis of polynya size fluctuations by means of active and passive microwave radiometers

Flavio Parmiggiani

doi:10.1117/12.629601

20 October 2005 Analysis of polynya size fluctuations by means of active and passive microwave radiometers

Flavio Parmiggiani

Proceedings Volume 5977, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2005; 59770D (2005) https://doi.org/10.1117/12.629601
Event: SPIE Remote Sensing, 2005, Bruges, Belgium

Abstract

Two novel microwave instruments, the Advanced Synthetic Aperture Radar (ASAR) on the Envisat satellite and the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) on EOS satellites, have recently become available to the scientific community. They offer new possibilites to study polynya size fluctuations: high-resolution ASAR images give a perfect view of polynya conditions but only a limited number of scenes is available in the ESA archive over a small area (circa 2 scenes per month); low-resolution AMSR-E images allow the detection of polynya extent on a day by day basis but with a much coarser accuracy. This study, while confirming the strong correlation between wind intensity and polynya area, suggests the feasibility of using ASAR images to calibrate the "open water" threshold in AMSR-E images for polynya size detection on a daly basis.

Citation Download Citation

Flavio Parmiggiani "Analysis of polynya size fluctuations by means of active and passive microwave radiometers", Proc. SPIE 5977, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2005, 59770D (20 October 2005); https://doi.org/10.1117/12.629601

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