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Hagan et al. 2004
Hagan, D.E., Webster, C.R., Farmer, C.B., May, R.D., Herman, R.L., Weinstock, E.M., Christensen, L.E., Lait, L.R. and Newman, P.A. (2004). Validating AIRS upper atmosphere water vapor retrievals using aircraft and balloon in situ measurements. Geophysical Research Letters 31: doi: 10.1029/2004GL020302. issn: 0094-8276.

This paper provides an initial assessment of the accuracy of the Atmospheric Infrared Sounder (AIRS) water vapor retrievals from 500 to 100 mbar. AIRS satellite measurements are compared with accurate aircraft (NASA WB57) and balloon in situ water vapor measurements obtained during the NASA Pre-Aura Validation Experiment (Pre-AVE) in Costa Rica during Jan. 2004. AIRS retrieval (each pressure level of a single footprint) of water vapor amount agrees with the in situ measurements to ~25% or better if matched closely in time (1 hr) and space (50--100 km). Both AIRS and in situ measurements observe similar significant variation in moisture amount over a two-day period, associated with large-scale changes in weather patterns.

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Abstract

Keywords
Atmospheric Composition and Structure, Troposphere—composition and chemistry, Meteorology and Atmospheric Dynamics, Remote sensing, Meteorology and Atmospheric Dynamics, Instruments and techniques
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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