Improvements in the data quality of the Interferometric Monitor for Greenhouse Gases
Applied Optics, Vol. 49, Issue 3, pp. 520-528 (2010)
http://dx.doi.org/10.1364/AO.49.000520
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Abstract
The Interferometric Monitor for Greenhouse Gases (IMG) operated aboard the polar-orbiting Advanced Earth Observing Satellite from October 1996 through June 1997. The IMG measured upwelling infrared radiance at fine spectral resolution. This paper identifies previously undocumented issues with IMG interferograms and describes procedures for correcting the majority of the affected data. In particular, single-sided interferograms should be used to avoid large noise bursts, and phase ambiguities must be resolved in uncalibrated spectra before radiometric calibration. The corrections are essential for studies that require accurately calibrated radiance spectra, including those that track atmospheric changes globally on decadal time scales.
© 2010 Optical Society of America
OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(280.4991) Remote sensing and sensors : Passive remote sensing
(120.6085) Instrumentation, measurement, and metrology : Space instrumentation
(290.6815) Scattering : Thermal emission
ToC Category:
Remote Sensing and Sensors
History
Original Manuscript: July 29, 2009
Revised Manuscript: November 24, 2009
Manuscript Accepted: November 29, 2009
Published: January 20, 2010
Citation
Von P. Walden, Robin L. Tanamachi, Penny M. Rowe, Henry E. Revercomb, David C. Tobin, and Steven A. Ackerman, "Improvements in the data quality of the Interferometric Monitor for Greenhouse Gases," Appl. Opt. 49, 520-528 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-3-520
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