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Aerosol size distribution, composition, and CO2 backscatterThe aerosol size distribution, composition, and CO2 backscatter at 10.6 microns (beta-CO2) were measured continuosly at the Mauna Loa Observatory (Hawaii) during January-March and November-December, 1988 periods to compare the characteristics of periods associated with appreciable Asian dust transport to that site (January-March) with those of periods characterized by low-dust condition. The aerosol size distribution in the range 0.15 micron to 7.6 microns was measured at temperatures of 40, 150, and 340 C to differentiate between volatile and nonvolatile aerosols. Large ranges of variability was found in measurements of aerosol size distribution during both periods, but the average distributions were similar for both the high-dust and the low-dust periods. However, values for beta-CO2 were more elevated (by about six times) during periods associated with active Asian dust transport to the observatory site than during the low-dust periods.
Document ID
19910047172
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Clarke, Antony D.
(Hawaii Univ. Honolulu, HI, United States)
Porter, John N.
(Hawaii, University Honolulu, 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
91A31795
Funding Number(s)
CONTRACT_GRANT: NAG8-634
Distribution Limits
Public
Copyright
Other

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