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 language | English |
|---|---|
| Pages (from-to) | 2003-2012 |
| Number of pages | 10 |
| Journal | Atmospheric Measurement Techniques |
| Volume | 5 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2012 |
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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 journal › Article
}
TY - JOUR
T1 - 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
AU - Tanaka, T.
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.
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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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U2 - 10.5194/amt-5-2003-2012
DO - 10.5194/amt-5-2003-2012
M3 - Article
AN - SCOPUS:84859554938
VL - 5
SP - 2003
EP - 2012
JO - Atmospheric Measurement Techniques
JF - Atmospheric Measurement Techniques
SN - 1867-1381
IS - 8
ER -