SST in Polynias - a case study

Schluessel, Peter; Grassl, Hartmut

doi:10.1080/01431169008955068

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SST in Polynias - a case study

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Grassl, Hartmut
MPI for Meteorology, Max Planck Society;

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Citation

Schluessel, P., & Grassl, H. (1990). SST in Polynias - a case study. International Journal of Remote Sensing, 11, 933-945. doi:10.1080/01431169008955068.

Cite as: https://hdl.handle.net/21.11116/0000-0009-0F2D-6

Abstract

Sea surface temperatures (SSTs) in Antarctic polynias are observed with NOAA-7 imagery. The study demonstrates the possibility of separating open water areas from clouds and ice with Advanced Very High Resolution Radiometer (AVHRR) channels 1, 3, 4 and 5 accurately enough for surface-temperature retrievals. Measurements from subsequent overpasses at different viewing angles agree with each other within the theoretically derived error bounds of 0.5 to 1 deg K. It is shown that even the cold Antarctic atmosphere requires a correction to the 11 μm satellite measurements to obtain adequate SST measurements.