Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system
We estimated the CH₄ budget in Finland for 2004–2014 using the CTE-CH₄ data assimilation system with anextended atmospheric CH₄ observation network of seven sites from Finland to surrounding regions(Hyytiälä, Kjølnes, Kumpula, Pallas, Puijo, Sodankylä, and Utö). The estimated average annual total em...
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ftunivbern:oai:boris.unibe.ch:135335 2023-08-20T04:09:49+02:00 Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system Tsuruta, Aki Aalto, Tuula Backman, Leif Krol, Maarten C. Peters, Wouter Lienert, Sebastian Joos, Fortunat Miller, Paul A. Zhang, Wenxin Laurila, Tuomas Hatakka, Juha Leskinen, Ari Lehtinen, Kari E. J. Peltola, Olli Vesala, Timo Levula, Janne Dlugokencky, Ed Heimann, Martin Kozlova, Elena Aurela, Mika Lohila, Annalea Kauhaniemi, Mari Gomez-Pelaez, Angel J. 2019 application/pdf https://boris.unibe.ch/135335/1/tsuruta19tel.pdf https://boris.unibe.ch/135335/ eng eng Taylor & Francis https://boris.unibe.ch/135335/ info:eu-repo/semantics/openAccess Tsuruta, Aki; Aalto, Tuula; Backman, Leif; Krol, Maarten C.; Peters, Wouter; Lienert, Sebastian; Joos, Fortunat; Miller, Paul A.; Zhang, Wenxin; Laurila, Tuomas; Hatakka, Juha; Leskinen, Ari; Lehtinen, Kari E. J.; Peltola, Olli; Vesala, Timo; Levula, Janne; Dlugokencky, Ed; Heimann, Martin; Kozlova, Elena; Aurela, Mika; . (2019). Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system. Tellus B: Chemical and Physical Meteorology, 71(1), pp. 1-20. Taylor & Francis 10.1080/16000889.2018.1565030 <http://dx.doi.org/10.1080/16000889.2018.1565030> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2019 ftunivbern https://doi.org/10.1080/16000889.2018.1565030 2023-07-31T21:55:04Z We estimated the CH₄ budget in Finland for 2004–2014 using the CTE-CH₄ data assimilation system with anextended atmospheric CH₄ observation network of seven sites from Finland to surrounding regions(Hyytiälä, Kjølnes, Kumpula, Pallas, Puijo, Sodankylä, and Utö). The estimated average annual total emission for Finland is 0.6± 0.5 Tg CH₄yr⁻¹. Sensitivity experiments show that the posterior biosphericemission estimates for Finland are between 0.3 and 0.9 Tg CH₄ yr⁻¹, which lies between the LPX-Bern-DYPTOP (0.2 Tg CH₄ yr⁻¹) and LPJG-WHyMe (2.2 Tg CH₄ yr⁻¹) process-based model estimates. For anthropogenic emissions, we found that the EDGAR v4.2 FT2010 inventory (0.4 Tg CH₄ yr⁻¹) is likely to overestimate emissions in southernmost Finland, but the extent of overestimation and possible relocation of emissions are difficult to derive from the current observation network. The posterior emission estimates were especially reliant on prior information in central Finland. However, based on analysis of posterior atmospheric CH₄, we found that the anthropogenic emission distribution based on a national inventory ismore reliable than the one based on EDGAR v4.2 FT2010. The contribution of total emissions in Finland to global total emissions is only about 0.13%, and the derived total emissions in Finland showed no trend during 2004–2014. The model using optimized emissions was able to reproduce observed atmospheric CH₄ at the sites in Finland and surrounding regions fairly well (correlation> 0.75, bias< ±7 ppb), supporting adequacy of the observations to be used in atmospheric inversion studies. In addition to global budget estimates, we found that CTE-CH₄ is also applicable for regional budget estimates, where small scale (1°x1° in this case) optimization is possible with a dense observation network. Article in Journal/Newspaper Sodankylä BORIS (Bern Open Repository and Information System, University of Bern) Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Tellus B: Chemical and Physical Meteorology 71 1 1565030 |
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Open Polar |
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BORIS (Bern Open Repository and Information System, University of Bern) |
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ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Tsuruta, Aki Aalto, Tuula Backman, Leif Krol, Maarten C. Peters, Wouter Lienert, Sebastian Joos, Fortunat Miller, Paul A. Zhang, Wenxin Laurila, Tuomas Hatakka, Juha Leskinen, Ari Lehtinen, Kari E. J. Peltola, Olli Vesala, Timo Levula, Janne Dlugokencky, Ed Heimann, Martin Kozlova, Elena Aurela, Mika Lohila, Annalea Kauhaniemi, Mari Gomez-Pelaez, Angel J. Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system |
topic_facet |
530 Physics |
description |
We estimated the CH₄ budget in Finland for 2004–2014 using the CTE-CH₄ data assimilation system with anextended atmospheric CH₄ observation network of seven sites from Finland to surrounding regions(Hyytiälä, Kjølnes, Kumpula, Pallas, Puijo, Sodankylä, and Utö). The estimated average annual total emission for Finland is 0.6± 0.5 Tg CH₄yr⁻¹. Sensitivity experiments show that the posterior biosphericemission estimates for Finland are between 0.3 and 0.9 Tg CH₄ yr⁻¹, which lies between the LPX-Bern-DYPTOP (0.2 Tg CH₄ yr⁻¹) and LPJG-WHyMe (2.2 Tg CH₄ yr⁻¹) process-based model estimates. For anthropogenic emissions, we found that the EDGAR v4.2 FT2010 inventory (0.4 Tg CH₄ yr⁻¹) is likely to overestimate emissions in southernmost Finland, but the extent of overestimation and possible relocation of emissions are difficult to derive from the current observation network. The posterior emission estimates were especially reliant on prior information in central Finland. However, based on analysis of posterior atmospheric CH₄, we found that the anthropogenic emission distribution based on a national inventory ismore reliable than the one based on EDGAR v4.2 FT2010. The contribution of total emissions in Finland to global total emissions is only about 0.13%, and the derived total emissions in Finland showed no trend during 2004–2014. The model using optimized emissions was able to reproduce observed atmospheric CH₄ at the sites in Finland and surrounding regions fairly well (correlation> 0.75, bias< ±7 ppb), supporting adequacy of the observations to be used in atmospheric inversion studies. In addition to global budget estimates, we found that CTE-CH₄ is also applicable for regional budget estimates, where small scale (1°x1° in this case) optimization is possible with a dense observation network. |
format |
Article in Journal/Newspaper |
author |
Tsuruta, Aki Aalto, Tuula Backman, Leif Krol, Maarten C. Peters, Wouter Lienert, Sebastian Joos, Fortunat Miller, Paul A. Zhang, Wenxin Laurila, Tuomas Hatakka, Juha Leskinen, Ari Lehtinen, Kari E. J. Peltola, Olli Vesala, Timo Levula, Janne Dlugokencky, Ed Heimann, Martin Kozlova, Elena Aurela, Mika Lohila, Annalea Kauhaniemi, Mari Gomez-Pelaez, Angel J. |
author_facet |
Tsuruta, Aki Aalto, Tuula Backman, Leif Krol, Maarten C. Peters, Wouter Lienert, Sebastian Joos, Fortunat Miller, Paul A. Zhang, Wenxin Laurila, Tuomas Hatakka, Juha Leskinen, Ari Lehtinen, Kari E. J. Peltola, Olli Vesala, Timo Levula, Janne Dlugokencky, Ed Heimann, Martin Kozlova, Elena Aurela, Mika Lohila, Annalea Kauhaniemi, Mari Gomez-Pelaez, Angel J. |
author_sort |
Tsuruta, Aki |
title |
Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system |
title_short |
Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system |
title_full |
Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system |
title_fullStr |
Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system |
title_full_unstemmed |
Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system |
title_sort |
methane budget estimates in finland from the carbontracker europe-ch₄ data assimilation system |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
https://boris.unibe.ch/135335/1/tsuruta19tel.pdf https://boris.unibe.ch/135335/ |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_source |
Tsuruta, Aki; Aalto, Tuula; Backman, Leif; Krol, Maarten C.; Peters, Wouter; Lienert, Sebastian; Joos, Fortunat; Miller, Paul A.; Zhang, Wenxin; Laurila, Tuomas; Hatakka, Juha; Leskinen, Ari; Lehtinen, Kari E. J.; Peltola, Olli; Vesala, Timo; Levula, Janne; Dlugokencky, Ed; Heimann, Martin; Kozlova, Elena; Aurela, Mika; . (2019). Methane budget estimates in Finland from the CarbonTracker Europe-CH₄ data assimilation system. Tellus B: Chemical and Physical Meteorology, 71(1), pp. 1-20. Taylor & Francis 10.1080/16000889.2018.1565030 <http://dx.doi.org/10.1080/16000889.2018.1565030> |
op_relation |
https://boris.unibe.ch/135335/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1080/16000889.2018.1565030 |
container_title |
Tellus B: Chemical and Physical Meteorology |
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71 |
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1 |
container_start_page |
1565030 |
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1774723508736098304 |