Estimation of cirrus parameters from multispectral measurements in the near-infrared and statements about multilayered clouds

Claudio Costanzo; Stephan Bakan

doi:10.1117/12.301137

1 January 1997 Estimation of cirrus parameters from multispectral measurements in the near-infrared and statements about multilayered clouds

Claudio Costanzo, Stephan Bakan

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Proceedings Volume 3220, Satellite Remote Sensing of Clouds and the Atmosphere II; (1997) https://doi.org/10.1117/12.301137
Event: Aerospace Remote Sensing '97, 1997, London, United Kingdom

Abstract

During the aircraft campaign EUCREX 94 different missions with the multispectral sensor OVID were flown inside frontal ice cloud systems. This study present estimated effective radii and cloud optical depths from measurements around 1.05 and 1.6 micrometer under the assumption of different particle shapes. The best agreement with independent measurements of other instruments result from the assumption of an irregular polycrystal. The measured effective radii vary between 18 and 46 micrometer which is compatible with published particle size distributions of moderate ambient temperatures between minus 45 and minus 55 degrees Celsius. An additional consideration of spatial features allow the distinction of cloud layers in different altitudes in the atmosphere and perhaps the estimation of cloud parameters from individual layers. This study show an example of such a recognition and discuss the potential for an operational algorithm.

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Claudio Costanzo and Stephan Bakan "Estimation of cirrus parameters from multispectral measurements in the near-infrared and statements about multilayered clouds", Proc. SPIE 3220, Satellite Remote Sensing of Clouds and the Atmosphere II, (1 January 1997); https://doi.org/10.1117/12.301137

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KEYWORDS

Clouds

Multilayers

Atmospheric particles

Detection and tracking algorithms

Optical testing

Particles

Sensors

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