Detection of polar stratospheric clouds with ERS2/GOME data

Ralf Meerkoetter

doi:10.1117/12.198593

4 January 1995 Detection of polar stratospheric clouds with ERS2/GOME data

Ralf Meerkoetter

Proceedings Volume 2311, Atmospheric Sensing and Modelling; (1995) https://doi.org/10.1117/12.198593
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

Based on radiative transfer calculations it is studied whether Polar Stratospheric Clouds (PSCs) can be detected by the new Global Ozone Monitoring Experiment onboard the second European Research Satellite (ERS-2) planned to be launched in winter 1994/95. It is proposed to identify PSC covered areas by use of an indicator, the Normalized Radiance Difference (NRD), which relates the difference of two spectral radiances at 0.515 micrometers and 0.67 micrometers to one radiance measured in the center of the oxygen A-band at 0.76 micrometers . In presence of PSCs and under conditions of increasing solar zenith angles above O equals 80 degree(s) the NRD rapidly decrease to values clearly below those derived under conditions of a cloud free stratosphere. Calculations for O equals 86 degree(s) show that this method is successful independently from existing tropospheric clouds and by different tropospheric aerosol loadings or surface albedos. For solar zenith angles O < 80 degree(s) the PSC detection needs additional information about tropospheric clouds.

Citation Download Citation

Ralf Meerkoetter "Detection of polar stratospheric clouds with ERS2/GOME data", Proc. SPIE 2311, Atmospheric Sensing and Modelling, (4 January 1995); https://doi.org/10.1117/12.198593

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