Ice radiance method for backscatter UV instrument monitoring

Glen Jaross; Arlin J. Krueger

doi:10.1117/12.163469

2 November 1993 Ice radiance method for backscatter UV instrument monitoring

Glen Jaross, Arlin J. Krueger

Proceedings Volume 2047, Atmospheric Ozone; (1993) https://doi.org/10.1117/12.163469
Event: High Latitude Optics, 1993, Tromso, Norway

Abstract

The radiance of large, ice covered land masses has been used to monitor TOMS instrument sensitivities. Greenland and Antarctica provide uniform and stable ice surfaces whose average albedo appears to be constant within the desired accuracy for instrument monitoring. Instrument radiance response will depend upon view and illumination angles, the sun-earth distance, and atmospheric conditions. Restriction to nadir views eliminates view angle dependence, and corrections are made for sun-earth distance. The effect of atmospheric conditions, such as ozone and clouds, is minimized by monitoring at wavelengths above 340 nm and by the high surface radiance. Relative instrument response is determined by the ratio of signals measured at different times using a binning technique to account for differences in solar illumination angles. The only remaining limit to long term monitoring accuracy is the albedo stability of the ice surface itself. Changes in the Nimbus-7/TOMS instrument response at long wavelengths are monitored within 1% accuracy over the lifetime of the instrument.

Citation Download Citation

Glen Jaross and Arlin J. Krueger "Ice radiance method for backscatter UV instrument monitoring", Proc. SPIE 2047, Atmospheric Ozone, (2 November 1993); https://doi.org/10.1117/12.163469

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