Air-surface exchange of H2O, CO2, and O3 at a tallgrass prairie in relation to remotely sensed vegetation indices

Journal Article · Sun Nov 01 04:00:00 EST 1992 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/91JD03175· OSTI ID:6117377

Gao, W; Wesely, M L; Cook, D R; Hart, R L ^[1]

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1. Argonne National Lab., IL (United States)

Parameters derived from eddy correlation measurements of the air-surface exchange rates of H[sub 2]O, CO[sub 2], and O[sub 3] over a tallgrass prairie are examined in terms of their relationships with spectral reflectance data remotely sensed from aircraft and satellites during the four 1987 intensive field campaigns of the First ISLSCP Field Experiment (FIFE). The surface conductances were strongly modulated by photosynthetically active radiation received at the surface when the grass was green and well watered; mesophyll resistances were large for CO[sub 2] but negligible for H[sub 2]O and O[sub 3]. 30 refs.

• Research Organization: National Aeronautics and Space Administration, Greenbelt, MD (United States). Goddard Space Flight Center
• OSTI ID: 6117377
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 97:D17; ISSN JGREA2; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AERIAL MONITORING
CANOPIES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
ECOLOGICAL CONCENTRATION
ECOSYSTEMS
FLUIDS
GASES
MONITORING
OXIDES
OXYGEN COMPOUNDS
OZONE
RADIATIONS
RANGELANDS
REMOTE SENSING
SOLAR RADIATION
STELLAR RADIATION
TEMPERATURE DISTRIBUTION
TERRESTRIAL ECOSYSTEMS
VAPORS
WATER VAPOR