Development of airborne SWIR FTS for GOSAT validation and calibration

Hiroshi Suto; Akihiko Kuze; Yutaka Kaneko; Takashi Hamazaki; Isamu Morino; Hiroyuki Oguma; Tatsuya Yokota; Gen Inoue

doi:10.1117/12.733194

26 September 2007 Development of airborne SWIR FTS for GOSAT validation and calibration

Hiroshi Suto, Akihiko Kuze, Yutaka Kaneko, Takashi Hamazaki, Isamu Morino, Hiroyuki Oguma, Tatsuya Yokota, Gen Inoue

Proceedings Volume 6678, Infrared Spaceborne Remote Sensing and Instrumentation XV; 667816 (2007) https://doi.org/10.1117/12.733194
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

In order to validate and calibrate the GOSAT satellite data, and also to develop the retrieval algorism for deriving the column density of CO₂ and CH₄ from spectra, the airborne SWIR (Short Wave Infrared Region) FTS (Fourier transform spectrometer) has been developed and characterized. This instrument is called as TSUKUBA model. The initial performance test of TSUKUBA model was carried out in our laboratory, and the measured modulation efficiencies are 70% (Band1), 85% (Band2) and 88% (Band3), respectively. The measured values of SNR with the equivalent black body temperature for 30% surface albedo are 190 (13050cm^-1), 148 (6200cm^-1), and 165 (5000cm^-1). The measured values of full width at half maximum (FWHM) of instrumental line shape functions are 0.38cm^-1, 0.26cm^-1, 0.25 cm^-1 for band 1, 2, and 3, respectively. The instrumental design and the results of performance tests are presented.

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Hiroshi Suto, Akihiko Kuze, Yutaka Kaneko, Takashi Hamazaki, Isamu Morino, Hiroyuki Oguma, Tatsuya Yokota, and Gen Inoue "Development of airborne SWIR FTS for GOSAT validation and calibration", Proc. SPIE 6678, Infrared Spaceborne Remote Sensing and Instrumentation XV, 667816 (26 September 2007); https://doi.org/10.1117/12.733194

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