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Carbon monoxide over the Amazon Basin during the 1985 dry seasonDuring the Amazon Boundary Layer Experiment, approximately 100 hours of in situ carbon monoxide measurements were obtained using a tunable diode laser sensor that provided continuous, fast-response (about 1 s) measurements. This data set, taken on board the NASA Electra between July 12 and August 12, 1985, characterizes the temporal and spatial changes in the CO distribution over the Amazon Basin as meteorological conditions progressed from the early to middle phases of the 1985 day season. Early dry-season CO values of 75-95 ppbv were generally observed in the PBL. As the dry season became well established, biomass burning and a persistent capping inversion at about 3 km profoundly altered the CO distribution, with PBL values typically reaching 150-275 ppbv. Concentrations as high as 800 ppbv were measured within identifiable haze layers. An analysis of satellite imagery shows that biomass burning was occurring along the Amazon River system and in savannah areas located more than 1000 km south of the region sampled.
Document ID
19880040031
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sachse, G. W.
(NASA Langley Research Center Hampton, VA, United States)
Harriss, R. C.
(NASA Langley Research Center Hampton, VA, United States)
Fishman, J.
(NASA Langley Research Center Hampton, VA, United States)
Hill, G. F.
(NASA Langley Research Center Hampton, VA, United States)
Cahoon, D. R.
(PRC Kentron, Inc. Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
February 20, 1988
Publication Information
Publication: Journal of Geophysical Research
Volume: 93
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
88A27258
Distribution Limits
Public
Copyright
Other

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