The Joint Airborne IASI Validation Experiment: An evaluation of instrument and algorithms |
| |
| Authors: | Stuart M. Newman Allen M. Larar William L. Smith Igor V. Ptashnik Roderic L. Jones Mohammed I. Mead Henry Revercomb David C. Tobin Joe K. Taylor Jonathan P. Taylor |
| |
| Affiliation: | 1. Met Office, FitzRoy Road, Exeter EX1 3PB, United Kingdom;2. NASA Langley Research Center, Hampton, VA, USA;3. Hampton University, Hampton, VA, USA;4. University of Wisconsin-Madison, Madison, WI, USA;5. V.E. Zuev Institute of Atmospheric Optics, 1 Academician Zuev Square, Tomsk 634055, Russia;6. Centre for Atmospheric Science, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK |
| |
| Abstract: | The Joint Airborne IASI Validation Experiment (JAIVEx) was designed to investigate the absolute radiometric accuracy of the Infrared Atmospheric Sounding Interferometer (IASI) and test the radiative transfer algorithms on which applications using IASI radiances rely. Two comprehensively instrumented research aircraft participated in coordinated measurements co-aligned with overpasses on the IASI instrument, with airborne interferometers obtaining radiance observations alongside intensive measurements of the atmospheric state. The JAIVEx data set has been used to place an upper bound on the absolute radiometric accuracy of IASI radiances. Further, a set of clear air case studies have been used to test competing formulations of the CO2 line shape, water vapor spectroscopic line parameters and continuum. The current state-of-the art performance of line-by-line models is established with implications for optimal use of IASI radiances in numerical weather prediction. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
