Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland
A state-of-the-art inverse model, CarbonTracker Data Assimilation Shell (CTDAS), was used to optimize estimates of methane (CH 4 ) surface fluxes using atmospheric observations of CH 4 as a constraint. The model consists of the latest version of the TM5 atmospheric chemistry-transport model and an e...
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ftunigroningenpu:oai:pure.rug.nl:publications/e780701e-a780-4086-8fcd-d0afe00f70cf 2024-06-02T08:04:30+00:00 Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland Tsuruta, Aki Aalto, Tuula Backman, Leif Peters, Wouter Krol, Maarten van der Laan-Luijkx, Ingrid T. Hatakka, Juha Heikkinen, Pauli Dlugokencky, Edward J. Spahni, Renato Paramonova, Nina N. 2015-08-12 https://hdl.handle.net/11370/e780701e-a780-4086-8fcd-d0afe00f70cf https://research.rug.nl/en/publications/e780701e-a780-4086-8fcd-d0afe00f70cf http://www.scopus.com/inward/record.url?scp=84939482678&partnerID=8YFLogxK eng eng https://research.rug.nl/en/publications/e780701e-a780-4086-8fcd-d0afe00f70cf info:eu-repo/semantics/restrictedAccess Tsuruta , A , Aalto , T , Backman , L , Peters , W , Krol , M , van der Laan-Luijkx , I T , Hatakka , J , Heikkinen , P , Dlugokencky , E J , Spahni , R & Paramonova , N N 2015 , ' Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland ' , Boreal environment research , vol. 20 , no. 4 , pp. 506-525 . article 2015 ftunigroningenpu 2024-05-07T21:57:39Z A state-of-the-art inverse model, CarbonTracker Data Assimilation Shell (CTDAS), was used to optimize estimates of methane (CH 4 ) surface fluxes using atmospheric observations of CH 4 as a constraint. The model consists of the latest version of the TM5 atmospheric chemistry-transport model and an ensemble Kalman filter based data assimilation system. The model was constrained by atmospheric methane surface concentrations, obtained from the World Data Centre for Greenhouse Gases (WDCGG). Prior methane emissions were specified for five sources: biosphere, anthropogenic, fire, termites and ocean, of which biosphere and anthropogenic emissions were optimized. Atmospheric CH 4 mole fractions for 2007 from northern Finland calculated from prior and optimized emissions were compared with observations. It was found that the root mean squared errors of the posterior estimates were more than halved. Furthermore, inclusion of NOAA observations of CH 4 from weekly discrete air samples collected at Pallas improved agreement between posterior CH 4 mole fraction estimates and continuous observations, and resulted in reducing optimized biosphere emissions and their uncertainties in northern Finland. Article in Journal/Newspaper Boreal Environment Research Northern Finland University of Groningen research database |
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Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
description |
A state-of-the-art inverse model, CarbonTracker Data Assimilation Shell (CTDAS), was used to optimize estimates of methane (CH 4 ) surface fluxes using atmospheric observations of CH 4 as a constraint. The model consists of the latest version of the TM5 atmospheric chemistry-transport model and an ensemble Kalman filter based data assimilation system. The model was constrained by atmospheric methane surface concentrations, obtained from the World Data Centre for Greenhouse Gases (WDCGG). Prior methane emissions were specified for five sources: biosphere, anthropogenic, fire, termites and ocean, of which biosphere and anthropogenic emissions were optimized. Atmospheric CH 4 mole fractions for 2007 from northern Finland calculated from prior and optimized emissions were compared with observations. It was found that the root mean squared errors of the posterior estimates were more than halved. Furthermore, inclusion of NOAA observations of CH 4 from weekly discrete air samples collected at Pallas improved agreement between posterior CH 4 mole fraction estimates and continuous observations, and resulted in reducing optimized biosphere emissions and their uncertainties in northern Finland. |
format |
Article in Journal/Newspaper |
author |
Tsuruta, Aki Aalto, Tuula Backman, Leif Peters, Wouter Krol, Maarten van der Laan-Luijkx, Ingrid T. Hatakka, Juha Heikkinen, Pauli Dlugokencky, Edward J. Spahni, Renato Paramonova, Nina N. |
spellingShingle |
Tsuruta, Aki Aalto, Tuula Backman, Leif Peters, Wouter Krol, Maarten van der Laan-Luijkx, Ingrid T. Hatakka, Juha Heikkinen, Pauli Dlugokencky, Edward J. Spahni, Renato Paramonova, Nina N. Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland |
author_facet |
Tsuruta, Aki Aalto, Tuula Backman, Leif Peters, Wouter Krol, Maarten van der Laan-Luijkx, Ingrid T. Hatakka, Juha Heikkinen, Pauli Dlugokencky, Edward J. Spahni, Renato Paramonova, Nina N. |
author_sort |
Tsuruta, Aki |
title |
Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland |
title_short |
Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland |
title_full |
Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland |
title_fullStr |
Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland |
title_full_unstemmed |
Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland |
title_sort |
evaluating atmospheric methane inversion model results for pallas, northern fsinland |
publishDate |
2015 |
url |
https://hdl.handle.net/11370/e780701e-a780-4086-8fcd-d0afe00f70cf https://research.rug.nl/en/publications/e780701e-a780-4086-8fcd-d0afe00f70cf http://www.scopus.com/inward/record.url?scp=84939482678&partnerID=8YFLogxK |
genre |
Boreal Environment Research Northern Finland |
genre_facet |
Boreal Environment Research Northern Finland |
op_source |
Tsuruta , A , Aalto , T , Backman , L , Peters , W , Krol , M , van der Laan-Luijkx , I T , Hatakka , J , Heikkinen , P , Dlugokencky , E J , Spahni , R & Paramonova , N N 2015 , ' Evaluating atmospheric methane inversion model results for Pallas, northern Fsinland ' , Boreal environment research , vol. 20 , no. 4 , pp. 506-525 . |
op_relation |
https://research.rug.nl/en/publications/e780701e-a780-4086-8fcd-d0afe00f70cf |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1800749126831308800 |