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 an extended 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...
Published in: | Tellus B: Chemical and Physical Meteorology |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Taylor & Francis
2019
|
Subjects: | |
Online Access: | https://lup.lub.lu.se/record/75721a84-4596-4805-b1dd-1637c5df9668 https://doi.org/10.1080/16000889.2018.1565030 |
id |
ftulundlup:oai:lup.lub.lu.se:75721a84-4596-4805-b1dd-1637c5df9668 |
---|---|
record_format |
openpolar |
spelling |
ftulundlup:oai:lup.lub.lu.se:75721a84-4596-4805-b1dd-1637c5df9668 2023-05-15T18:20:19+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. 2019-01-28 https://lup.lub.lu.se/record/75721a84-4596-4805-b1dd-1637c5df9668 https://doi.org/10.1080/16000889.2018.1565030 eng eng Taylor & Francis https://lup.lub.lu.se/record/75721a84-4596-4805-b1dd-1637c5df9668 http://dx.doi.org/10.1080/16000889.2018.1565030 scopus:85060927978 Tellus. Series B: Chemical and Physical Meteorology; 71(1), no 1565030 (2019) ISSN: 1600-0889 Climate Research Meteorology and Atmospheric Sciences atmospheric CH CH flux data assimilation Finland flux estimation contributiontojournal/article info:eu-repo/semantics/article text 2019 ftulundlup https://doi.org/10.1080/16000889.2018.1565030 2023-02-01T23:37:29Z We estimated the CH4 budget in Finland for 2004–2014 using the CTE-CH4 data assimilation system with an extended 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 CH4 yr−1. Sensitivity experiments show that the posterior biospheric emission 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 is more 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 < ± 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 (1x1 in this case) optimization is possible with a dense observation network. Article in Journal/Newspaper Sodankylä Lund University Publications (LUP) Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Tellus B: Chemical and Physical Meteorology 71 1 1565030 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Climate Research Meteorology and Atmospheric Sciences atmospheric CH CH flux data assimilation Finland flux estimation |
spellingShingle |
Climate Research Meteorology and Atmospheric Sciences atmospheric CH CH flux data assimilation Finland flux estimation 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 |
Climate Research Meteorology and Atmospheric Sciences atmospheric CH CH flux data assimilation Finland flux estimation |
description |
We estimated the CH4 budget in Finland for 2004–2014 using the CTE-CH4 data assimilation system with an extended 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 CH4 yr−1. Sensitivity experiments show that the posterior biospheric emission 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 is more 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 < ± 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 (1x1 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://lup.lub.lu.se/record/75721a84-4596-4805-b1dd-1637c5df9668 https://doi.org/10.1080/16000889.2018.1565030 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_source |
Tellus. Series B: Chemical and Physical Meteorology; 71(1), no 1565030 (2019) ISSN: 1600-0889 |
op_relation |
https://lup.lub.lu.se/record/75721a84-4596-4805-b1dd-1637c5df9668 http://dx.doi.org/10.1080/16000889.2018.1565030 scopus:85060927978 |
op_doi |
https://doi.org/10.1080/16000889.2018.1565030 |
container_title |
Tellus B: Chemical and Physical Meteorology |
container_volume |
71 |
container_issue |
1 |
container_start_page |
1565030 |
_version_ |
1766197836168298496 |