Trace gas measurements from infrared satellite for chemistry and climate applications

Clerbaux, Cathy; Hadji‐Lazaro, Juliette; Turquety, Solène; Mégie, G.; Coheur, Pierre‐François

doi:10.5194/acp-3-1495-2003

Cited by 115 publications

(63 citation statements)

References 47 publications

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“…Up till now, MOPITT has been unsuccessful in retrieving accurate CH 4 total columns from their data. Methane and carbon monoxide have been measured earlier by the Interferometric Monitoring of Greenhouse Gases (IMG) instrument on board the ADEOS satellite (Clerbaux et al, 2003;Barret et al, 2005). Recently, the EOS-AURA satellite was launched, carrying the Tropospheric Emission Spectrometer (TES) instrument, which is currently measuring CH 4 and CO (e.g.…”

Section: Introductionmentioning

confidence: 99%

The impact of SCIAMACHY near-infrared instrument calibration on CH4 and CO total columns

et al. 2005

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Abstract. The near-infrared spectra measured with the SCIAMACHY instrument on board the ENVISAT satellite suffer from several instrument calibration problems. The effects of three important instrument calibration issues on the retrieved methane (CH 4 ) and carbon monoxide (CO) total columns have been investigated: the effects of the growing ice layer on the near-infrared detectors, the effects of the orbital variation of the instrument dark signal, and the effects of the dead/bad detector pixels. Corrections for each of these instrument calibration issues have been defined. The retrieved CH 4 and CO total columns including these corrections show good agreement with CO measurements from the MOPITT satellite instrument and with CH 4 model calculations by the chemistry transport model TM3. Using a systematic approach, it is shown that all three instrument calibration issues have a significant effect on the retrieved CH 4 and CO total columns. However, the impact on the CH 4 total columns is more pronounced than for CO, because of its smaller variability. Results for three different wavelength ranges are compared and show good agreement. The growing ice layer and the orbital variation of the dark signal show a systematic, but time-dependent effect on the retrieved CH 4 and CO total columns, whereas the effect of the dead/bad pixels is rather unpredictable: some dead pixels show a random effect, some more systematic, and others no effect at all. The importance of accurate corrections for each of these instrument calibration issues is illustrated using examples where inaccurate corrections lead to a wrong interpretation of the results.Correspondence to: A. M. S. Gloudemans (a.gloudemans@sron.nl)

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Section: Introductionmentioning

confidence: 99%

The impact of SCIAMACHY near-infrared instrument calibration on CH4 and CO total columns

et al. 2005

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“…This question is still subject to some controversy (Dueck et al, 2007) but has recently been confirmed in two studies Vigano et al, 2008). CH 4 profiles can also be retrieved from thermal infrared nadir sounders, as was shown from the IMG/ADEOS mission (Clerbaux et al, 2003) and more recently from the AIRS/AQUA and TES/Aura sounders (Xiong et al, 2008;Kulawik et al, 2008). Space-borne instruments working in a limb viewing geometry (ACE-FTS, HALOE, MIPAS) add information on the vertical distribution of methane but are only sensitive from the upper troposphere to higher altitudes (De Mazière et al, 2008;Raspollini et al, 2006;Park et al, 2004).…”

Section: Introductionmentioning

confidence: 92%

Characterization of methane retrievals from the IASI space-borne sounder

et al. 2009

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Abstract. Although the global methane (CH 4 ) concentration has more than doubled since pre-industrial times, local emission sources are still poorly identified and quantified. Instruments onboard satellites can improve our knowledge about the methane global distribution owing to their very good spatial coverage. The IASI (Infrared Atmospheric Sounding Interferometer) instrument launched on the European MetOp-A platform is a Fourier transform spectrometer which measures the thermal infrared radiation emitted by the Earth and its atmosphere. In this paper, we present the first global distribution of methane total columns (mostly sensitive to the middle troposphere) from the IASI spectra using the methane ν 4 absorption band. The retrieval spectral range was set in order to minimize possible spectroscopic issues. Results are discussed in terms of error budget and vertical sensitivity. In addition, we study the gain of information on surface methane concentrations provided by using the ν 3 band, which is partly covered by IASI on the short-wave end of the spectra (extending to 2760 cm −1 ), where solar reflection contributes significantly.

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“…Agriculture is believed to be responsible for about 50% of global CH 4 emission induced by human activity [16]. Methane is produced when organic C decomposition in oxygen-deprived conditions, notably from crop grown under flooded conditions [17].…”

Section: Introductionmentioning

confidence: 99%

In-Field Management Practices for Mitigating Soil CO2 and CH4 Fluxes under Corn (Zea mays) Production System in Middle Tennessee

Dennis¹,

Deng²,

Hui³

et al. 2015

AJCC

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The United States continues to be the largest corn producer in the world. How to maximize corn yield and at the same time reduce greenhouse gas emissions, is becoming a challenging effort for growers and researchers. As a result, our understanding of the responses of soil CO 2 and CH 4 fluxes to agricultural practices in cornfields is still limited. We conducted a 3-yr cornfield experiment to study the responses of soil CO 2 S. Dennis et al. 368tivity. Our results indicated that agricultural practices enhancing corn yield may also result in a net increase in carbon emissions from soil, hence reducing the potential of carbon sequestration in croplands.

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Trace gas measurements from infrared satellite for chemistry and climate applications

Cited by 115 publications

References 47 publications

The impact of SCIAMACHY near-infrared instrument calibration on CH<sub>4</sub> and CO total columns

The impact of SCIAMACHY near-infrared instrument calibration on CH<sub>4</sub> and CO total columns

Characterization of methane retrievals from the IASI space-borne sounder

In-Field Management Practices for Mitigating Soil CO<sub>2</sub> and CH<sub>4</sub> Fluxes under Corn (<i>Zea mays</i>) Production System in Middle Tennessee

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Trace gas measurements from infrared satellite for chemistry and climate applications

Cited by 115 publications

References 47 publications

The impact of SCIAMACHY near-infrared instrument calibration on CH&lt;sub&gt;4&lt;/sub&gt; and CO total columns

The impact of SCIAMACHY near-infrared instrument calibration on CH&lt;sub&gt;4&lt;/sub&gt; and CO total columns

Characterization of methane retrievals from the IASI space-borne sounder

In-Field Management Practices for Mitigating Soil CO&lt;sub&gt;2&lt;/sub&gt; and CH&lt;sub&gt;4&lt;/sub&gt; Fluxes under Corn (&lt;i&gt;Zea mays&lt;/i&gt;) Production System in Middle Tennessee

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The impact of SCIAMACHY near-infrared instrument calibration on CH<sub>4</sub> and CO total columns

The impact of SCIAMACHY near-infrared instrument calibration on CH<sub>4</sub> and CO total columns

In-Field Management Practices for Mitigating Soil CO<sub>2</sub> and CH<sub>4</sub> Fluxes under Corn (<i>Zea mays</i>) Production System in Middle Tennessee