An Atmospheric Temperature Profile Measured with an In-Situ Infrared Radiometer

A side-looking infrared radiometer operating in a narrow spectral interval in the 15 micrometers carbon dioxide band was flown on a balloon platform. Data were obtained over the altitude range from 9.4 to 30 km. The resulting radiance measurements are compared with calculations making use of indepen...

Full description

Saved in:
Bibliographic Details
Main Authors: McClatchey,R A, D'Agati,A D
Format: Report
Language:English
Subjects:
Atmospheric Physics
ATMOSPHERIC TEMPERATURE
DATA ACQUISITION
INFRARED EQUIPMENT
METEOROLOGICAL DATA
METEOROLOGICAL SATELLITES
PE62101F
RADIOMETERS
REMOTE SYSTEMS
Test Facilities, Equipment and Methods
WUAFGL76701304
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A side-looking infrared radiometer operating in a narrow spectral interval in the 15 micrometers carbon dioxide band was flown on a balloon platform. Data were obtained over the altitude range from 9.4 to 30 km. The resulting radiance measurements are compared with calculations making use of independent rawinsonde measurements obtained during the balloon flight. These comparisons indicate a systematic discrepancy of a few percent at lower altitudes increasing to 20 percent near 20 km. This discrepancy is found to be consistent with a previous study of satellite based radiances. Possible sources of this discrepancy are investigated and rejected, leading the authors to question the assumption that the source function is equal to the Planck intensity. (Author)