Atmospheric radiance measurements in the 14- to 16-[mu]m carbon dioxide band from the IRS-1B spacecraft

The conical scanning horizon sensors on the IRS-1B spacecraft have provided results on the outgoing atmospheric 14- to 16-[mu]m 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 16-...

Full description

Saved in:
Bibliographic Details
Published in:Optical engineering 1994-11, Vol.33:11
Main Authors: Seshamani, R., Alex, T.K., Jain, Y.K.
Format: Article
Language:English
Subjects:
ATMOSPHERIC CHEMISTRY
CHEMICAL COMPOSITION
CHEMISTRY
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ENVIRONMENTAL SCIENCES
INFRARED RADIATION
MONITORING
RADIATIONS 540110
SATELLITES
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The conical scanning horizon sensors on the IRS-1B spacecraft have provided results on the outgoing atmospheric 14- to 16-[mu]m 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 16-[mu]m band of carbon dioxide, which is uniformly mixed in the atmosphere. The sensor's 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.
ISSN:0091-3286
1560-2303
DOI:10.1117/12.181146