Aircraft measurements of carbon dioxide and methane for the calibration of ground-based high-resolution Fourier Transform Spectrometers and a comparison to GOSAT data measured over Tsukuba and Moshiri

T. Tanaka, Yuki Miyamoto, I. Morino, T. MacHida, T. Nagahama, Y. Sawa, H. Matsueda, D. Wunch, S. Kawakami, O. Uchino

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Abstract

Aircraft measurements of carbon dioxide and methane over Tsukuba (36.05 ° N, 140.12 ° E) (February 2010) and Moshiri (44.36 ° N, 142.26 ° E) (August 2009) were made to calibrate ground-based high-resolution Fourier Transform Spectrometers (g-b FTSs) and to compare with the Greenhouse gases Observing SATellite (GOSAT). The aircraft measurements over Tsukuba in February 2010 were successful in synchronizing with both the g-b FTS and GOSAT for the first time. Airborne in situ and flask-sampling instruments were mounted on the aircraft, and measurements were carried out between altitudes of 0.5 and 7 km to obtain vertical profiles of carbon dioxide (CO 2), methane (CH 4), and other gaseous species. By comparing the g-b FTS measurements with the airborne measurements, the column-averaged dry air mole fractions of CO 2 (XCO 2) and CH 4 (XCH 4) retrieved from the g-b FTS measurements at Tsukuba were biased low by 0.33 ± 0.11% for XCO 2 and 0.69 ± 0.29% for XCH 4. The g-b FTS values at Moshiri were biased low by 1.24% for XCO 2 and 2.11% for XCH 4. The GOSAT data show biases that are 3.1% ± 1.7% lower for XCO 2 and 2.5% ± 0.8% lower for XCH 4 than the aircraft measurements obtained over Tsukuba.

Original languageEnglish
Pages (from-to)2003-2012
Number of pages10
JournalAtmospheric Measurement Techniques
Volume5
Issue number8
DOIs
Publication statusPublished - 2012

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airborne survey
Fourier transform
satellite data
spectrometer
carbon dioxide
methane
calibration
gas
GOSAT
vertical profile
aircraft
comparison
sampling
air

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Aircraft measurements of carbon dioxide and methane for the calibration of ground-based high-resolution Fourier Transform Spectrometers and a comparison to GOSAT data measured over Tsukuba and Moshiri. / Tanaka, T.; Miyamoto, Yuki; Morino, I.; MacHida, T.; Nagahama, T.; Sawa, Y.; Matsueda, H.; Wunch, D.; Kawakami, S.; Uchino, O.

In: Atmospheric Measurement Techniques, Vol. 5, No. 8, 2012, p. 2003-2012.

Research output: Contribution to journalArticle

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abstract = "Aircraft measurements of carbon dioxide and methane over Tsukuba (36.05 ° N, 140.12 ° E) (February 2010) and Moshiri (44.36 ° N, 142.26 ° E) (August 2009) were made to calibrate ground-based high-resolution Fourier Transform Spectrometers (g-b FTSs) and to compare with the Greenhouse gases Observing SATellite (GOSAT). The aircraft measurements over Tsukuba in February 2010 were successful in synchronizing with both the g-b FTS and GOSAT for the first time. Airborne in situ and flask-sampling instruments were mounted on the aircraft, and measurements were carried out between altitudes of 0.5 and 7 km to obtain vertical profiles of carbon dioxide (CO 2), methane (CH 4), and other gaseous species. By comparing the g-b FTS measurements with the airborne measurements, the column-averaged dry air mole fractions of CO 2 (XCO 2) and CH 4 (XCH 4) retrieved from the g-b FTS measurements at Tsukuba were biased low by 0.33 ± 0.11{\%} for XCO 2 and 0.69 ± 0.29{\%} for XCH 4. The g-b FTS values at Moshiri were biased low by 1.24{\%} for XCO 2 and 2.11{\%} for XCH 4. The GOSAT data show biases that are 3.1{\%} ± 1.7{\%} lower for XCO 2 and 2.5{\%} ± 0.8{\%} lower for XCH 4 than the aircraft measurements obtained over Tsukuba.",
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AU - Miyamoto, Yuki

AU - Morino, I.

AU - MacHida, T.

AU - Nagahama, T.

AU - Sawa, Y.

AU - Matsueda, H.

AU - Wunch, D.

AU - Kawakami, S.

AU - Uchino, O.

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