Relationship of collocated cloud radiances in the METEOSAT IR and WV channel

Andreas Ottenbacher; Johannes Schmetz

doi:10.1117/12.196660

23 December 1994 Relationship of collocated cloud radiances in the METEOSAT IR and WV channel

Andreas Ottenbacher, Johannes Schmetz

Proceedings Volume 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II; (1994) https://doi.org/10.1117/12.196660
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

Bispectral techniques employing the infrared (IR: 10.5 - 12.5 micrometers ) and water vapor (WV: 5.7 - 7.1 micrometers ) channels of the geostationary Meteosat satellites are in use for cloud classification and cloud altitude correction of semi-transparent cirrus clouds. This paper investigates the relationship between radiance observation in the IR and WV channel and the validity of various assumptions. Specifically the following problems are addressed: (1) accuracy of coregistration of two simultaneous images in the IR and WV channel, (2) the effect of instrument noise on single pixel classification, (3) the influence of moisture above the cloud top on the satellite observed radiances and (4) the effects of different cloud emissivities in both channels. The study makes use of both radiation model calculations and satellite observations. The impact of different ice particle distributions on cloud emissivity is studied.

Citation Download Citation

Andreas Ottenbacher and Johannes Schmetz "Relationship of collocated cloud radiances in the METEOSAT IR and WV channel", Proc. SPIE 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II, (23 December 1994); https://doi.org/10.1117/12.196660

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available