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TES Level 1 Algorithms: Interferogram Processing, Geolocation, Radiometric, and Spectral CalibrationThe Tropospheric Emission Spectrometer (TES) on the Earth Observing System (EOS) Aura satellite measures the infrared radiance emitted by the Earth's surface and atmosphere using Fourier transform spectrometry. The measured interferograms are converted into geolocated, calibrated radiance spectra by the L1 (Level 1) processing, and are the inputs to L2 (Level 2) retrievals of atmospheric parameters, such as vertical profiles of trace gas abundance. We describe the algorithmic components of TES Level 1 processing, giving examples of the intermediate results and diagnostics that are necessary for creating TES L1 products. An assessment of noise-equivalent spectral radiance levels and current systematic errors is provided. As an initial validation of our spectral radiances, TES data are compared to the Atmospheric Infrared Sounder (AIRS) (on EOS Aqua), after accounting for spectral resolution differences by applying the AIRS spectral response function to the TES spectra. For the TES L1 nadir data products currently available, the agreement with AIRS is 1 K or better.
Document ID
20070034777
Document Type
Reprint (Version printed in journal)
Authors
Worden, Helen (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Beer, Reinhard (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bowman, Kevin W. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Fisher, Brendan (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Luo, Mingzhao (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rider, David (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sarkissian, Edwin (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tremblay, Denis (Raytheon Information Technology and Scientific Services Pasadena, CA, United States)
Zong, Jia (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
May 5, 2006
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 44
Issue: 5
ISSN: 0196-2892
Subject Category
Geosciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
infrared remote sensing
Fourier Transform Spectrometry (FTS)
Earth Observing System (EOS)
Aura
Tropospheric Emission Spectrometer (TES)
radiometric calibration,