Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018
<p>Located in north-east France, the Observatoire Pérenne de l'Environnement (OPE) station was built during the Integrated Carbon Observation System (ICOS) Demonstration Experiment to monitor the greenhouse gases mole fraction. Its continental rural background setting fills the gaps betwe...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2019-12-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://www.atmos-meas-tech.net/12/6361/2019/amt-12-6361-2019.pdf |
| _version_ | 1811203598077394944 |
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| author | S. Conil J. Helle L. Langrene O. Laurent M. Delmotte M. Ramonet |
| author_facet | S. Conil J. Helle L. Langrene O. Laurent M. Delmotte M. Ramonet |
| author_sort | S. Conil |
| collection | DOAJ |
| description | <p>Located in north-east France, the Observatoire Pérenne de
l'Environnement (OPE) station was built during the Integrated Carbon
Observation System (ICOS) Demonstration Experiment to monitor the greenhouse
gases mole fraction. Its continental rural background setting fills the gaps
between oceanic or mountain stations and urban stations within the ICOS
network. Continuous measurements of several greenhouse gases using high-precision spectrometers started in 2011 on a tall tower with three sampling
inlets at 10, 50 and 120 m above ground level (a.g.l.). Measurement quality is
regularly assessed using several complementary approaches based on reference
high-pressure cylinders, audits using travelling instruments and sets of
travelling cylinders (“cucumber” intercomparison programme). Thanks to the
quality assurance strategy recommended by ICOS, measurement uncertainties
are within the World Meteorological Organisation compatibility goals for
carbon dioxide (<span class="inline-formula">CO<sub>2</sub></span>), methane (<span class="inline-formula">CH<sub>4</sub></span>) and carbon monoxide (CO). The
time series of mixing ratios from 2011 to the end of 2018 are used to analyse
trends and diurnal and seasonal cycles. The <span class="inline-formula">CO<sub>2</sub></span> and <span class="inline-formula">CH<sub>4</sub></span> annual
growth rates are 2.4 ppm yr<span class="inline-formula"><sup>−1</sup></span> and 8.8 ppb yr<span class="inline-formula"><sup>−1</sup></span> respectively for
measurements at 120 m a.g.l. over the investigated period. However, no
significant trend has been recorded for CO mixing ratios. The afternoon mean
residuals (defined as the differences between midday observations and a
smooth fitted curve) of these three compounds are significantly stronger
during the cold period when inter-species correlations are high, compared to
the warm period. The variabilities of residuals show a close link with air
mass back-trajectories.</p> |
| first_indexed | 2024-04-12T02:58:05Z |
| format | Article |
| id | doaj.art-1214fb9d1a1847f7bbb583c55715b518 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-04-12T02:58:05Z |
| publishDate | 2019-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-1214fb9d1a1847f7bbb583c55715b5182022-12-22T03:50:44ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482019-12-01126361638310.5194/amt-12-6361-2019Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018S. Conil0J. Helle1L. Langrene2O. Laurent3M. Delmotte4M. Ramonet5DRD/OPE, Andra, Bure, 55290, FranceLaboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), UMR CEA-CNRS-UVSQ, Gif-sur-Yvette, FranceDRD/OPE, Andra, Bure, 55290, FranceLaboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), UMR CEA-CNRS-UVSQ, Gif-sur-Yvette, FranceLaboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), UMR CEA-CNRS-UVSQ, Gif-sur-Yvette, FranceLaboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), UMR CEA-CNRS-UVSQ, Gif-sur-Yvette, France<p>Located in north-east France, the Observatoire Pérenne de l'Environnement (OPE) station was built during the Integrated Carbon Observation System (ICOS) Demonstration Experiment to monitor the greenhouse gases mole fraction. Its continental rural background setting fills the gaps between oceanic or mountain stations and urban stations within the ICOS network. Continuous measurements of several greenhouse gases using high-precision spectrometers started in 2011 on a tall tower with three sampling inlets at 10, 50 and 120 m above ground level (a.g.l.). Measurement quality is regularly assessed using several complementary approaches based on reference high-pressure cylinders, audits using travelling instruments and sets of travelling cylinders (“cucumber” intercomparison programme). Thanks to the quality assurance strategy recommended by ICOS, measurement uncertainties are within the World Meteorological Organisation compatibility goals for carbon dioxide (<span class="inline-formula">CO<sub>2</sub></span>), methane (<span class="inline-formula">CH<sub>4</sub></span>) and carbon monoxide (CO). The time series of mixing ratios from 2011 to the end of 2018 are used to analyse trends and diurnal and seasonal cycles. The <span class="inline-formula">CO<sub>2</sub></span> and <span class="inline-formula">CH<sub>4</sub></span> annual growth rates are 2.4 ppm yr<span class="inline-formula"><sup>−1</sup></span> and 8.8 ppb yr<span class="inline-formula"><sup>−1</sup></span> respectively for measurements at 120 m a.g.l. over the investigated period. However, no significant trend has been recorded for CO mixing ratios. The afternoon mean residuals (defined as the differences between midday observations and a smooth fitted curve) of these three compounds are significantly stronger during the cold period when inter-species correlations are high, compared to the warm period. The variabilities of residuals show a close link with air mass back-trajectories.</p>https://www.atmos-meas-tech.net/12/6361/2019/amt-12-6361-2019.pdf |
| spellingShingle | S. Conil J. Helle L. Langrene O. Laurent M. Delmotte M. Ramonet Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018 Atmospheric Measurement Techniques |
| title | Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018 |
| title_full | Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018 |
| title_fullStr | Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018 |
| title_full_unstemmed | Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018 |
| title_short | Continuous atmospheric CO<sub>2</sub>, CH<sub>4</sub> and CO measurements at the Observatoire Pérenne de l'Environnement (OPE) station in France from 2011 to 2018 |
| title_sort | continuous atmospheric co sub 2 sub ch sub 4 sub and co measurements at the observatoire perenne de l environnement ope station in france from 2011 to 2018 |
| url | https://www.atmos-meas-tech.net/12/6361/2019/amt-12-6361-2019.pdf |
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