NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A comparison of measured and calculated optical properties of atmospheric aerosols at infrared wavelengthsMeasurements of 10.6-micron lidar backscatter were compared with calculated backscatter based on nearly simultaneous observations of stratospheric and tropospheric aerosol size distributions. It was found that there is better agreement in the troposphere, even though the uncertainties of the calculation are greater for this region due to the variables in both the spatial concentration and the physical makeup of the aerosol. A second comparison study was made to test the consistency of the mean tropospheric extinction values at 1.02 micron (as reported by the SAGE satellite) with the values calculated from an ensemble of 400 measured size distributions thought to be representative of midcontinental tropospheric aerosol. The two methods produce consistent results within the expected degree of uncertainty. The ensemble of 400 'proven' size distributions is then used to calculate a statistical relationship between the 1.02-micron extinction and the 10.6-micron backscatter.
Document ID
19910047171
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rosen, James M.
(Wyoming, University Laramie, United States)
Date Acquired
August 14, 2013
Publication Date
March 20, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
91A31794
Funding Number(s)
CONTRACT_GRANT: NAS1-17735
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available