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Spatial and temporal variations of the fluxes of carbon dioxide and sensible and latent heat over the FIFE siteAirborne measurements of flux densities of carbon dioxide CO2, sensible heat, and latent heat (H2O) obtained over the First ISLSCP Field Experiment (FIFE) site during three intensive field campaigns in 1987 and one in 1989 are examined to characterize the spatial and temporal variations of CO2 and energy transfer processes. These data were collected by the National Research Council Twin Otter using low-level flight patterns, all flown at constant pressure altitude during relatively clear days. The spatial variations are larger in 1989 than in 1987 and a higher correlation is observed between the fluxes and the surface features. The temporal patterns are easier to characterize with the relatively homogeneous situation of 1987. Functional relationships obtained between fluxes of CO2 and latent heat, CO2 fluxes and greenness index, latent heat fluxes and greenness index, and between sensible heat fluxes and surface air temperature differences are presented for one day in 1987 and one in 1989 as an example of the kind of information that can be obtained from grid flights at constant pressure altitude.
Document ID
19930036589
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Desjardins, R. L.
(Agriculture Canada Centre for Land and Biological Resources Research, Ottawa, United States)
Schuepp, P. H.
(McGill Univ. Sainte-Anne-de-Bellevue, Canada)
Macpherson, J. I.
(National Research Council of Canada, Flight Research Lab. Ottawa, United States)
Buckley, D. J.
(Agriculture Canada Centre for Food and Animal Research, Ottawa, United States)
Date Acquired
August 15, 2013
Publication Date
November 30, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
Issue: D17
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
93A20586
Distribution Limits
Public
Copyright
Other

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