Atmospheric radiance measurements in the 14- to 16-um carbon dioxide band from the IRS-1B spacecraft

Ramani Seshamani; T. K. Alex; Yashwant K. Jain

doi:10.1117/12.181146

1 November 1994 Atmospheric radiance measurements in the 14- to 16-μm carbon dioxide band from the IRS-1B spacecraft

Ramani Seshamani, T. K. Alex, Yashwant K. Jain

Author Affiliations +

Optical Engineering, Vol. 33, Issue 11, (November 1994). https://doi.org/10.1117/12.181146

Abstract

The conical scanning horizon sensors on the IRS-l B spacecraft have provided results on the outgoing atmospheric 14- to l6-μm carbon dioxide radiance. These radiance values are presented and discussed for the periods January to August 1992. The sensors detect the horizon radiance in the 14- to l6-μm band of carbon dioxide, which is uniformly mixed in the atmosphere. The sensors' narrow field of view cuts the horizon twice in each conical scan, generating a space-to-earth and an earth-to-space crossing. The telemetered counts from the sensor are converted into radiances at various latitude-longitude points. This is the first time that radiance contour plots have been obtained as a function of latitude and longitude. The plots show a hitherto unreported variation of 30% with respect to longitude, which is correlated in some cases with increased stratospheric (10-mbar) temperature.

Citation Download Citation

Ramani Seshamani, T. K. Alex, and Yashwant K. Jain "Atmospheric radiance measurements in the 14- to 16-μm carbon dioxide band from the IRS-1B spacecraft," Optical Engineering 33(11), (1 November 1994). https://doi.org/10.1117/12.181146

Published: 1 November 1994

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