Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization
International audience This study compares the CH 4 fluxes from two arctic wetland sites of different annual temperatures during 2004 to 2006. The PEATLAND-VU model was used to simulate the emissions. The CH 4 module of PEATLAND-VU is based on the Walter-Heimann model. The first site is located in n...
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ftinsu:oai:HAL:hal-00297919v1 2023-11-12T03:59:15+01:00 Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization Petrescu, A. M. R. van Huissteden, J. C. Jackowicz-Korczynski, M. Yurova, A. Christensen, T. R. Crill, P. M. Maximov, T. C. Faculty of Earth and Life Sciences Amsterdam (FALW) Vrije Universiteit Amsterdam Amsterdam (VU) Skane University Hospital Lund Department of Geology and Geochemistry Stockholm Stockholm University Institute of Biological Problems of Cryolithozone Siberian Branch of the Russian Academy of Sciences (SB RAS) 2007-09-12 https://hal.science/hal-00297919 https://hal.science/hal-00297919/document https://hal.science/hal-00297919/file/bgd-4-3195-2007.pdf en eng HAL CCSD European Geosciences Union hal-00297919 https://hal.science/hal-00297919 https://hal.science/hal-00297919/document https://hal.science/hal-00297919/file/bgd-4-3195-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.science/hal-00297919 Biogeosciences Discussions, 2007, 4 (5), pp.3195-3227 [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftinsu 2023-10-25T16:28:21Z International audience This study compares the CH 4 fluxes from two arctic wetland sites of different annual temperatures during 2004 to 2006. The PEATLAND-VU model was used to simulate the emissions. The CH 4 module of PEATLAND-VU is based on the Walter-Heimann model. The first site is located in northeast Siberia, Indigirka lowlands, Kytalyk reserve (70° N, 147° E) in a continuous permafrost region with mean annual temperatures of ?14.3°C. The other site is Stordalen mire in the eastern part of Lake Torneträsk (68° N, 19° E), ten kilometres east of Abisko, northern Sweden. It is located in a discontinuous permafrost region. Stordalen has a sub arctic climate with a mean annual temperature of ?0.7°C. Model input consisted of observed temperature, precipitation and snow cover data. In all cases, modelled CH 4 emissions show a direct correlation between variations in water table and soil temperature variations. The differences in CH 4 emissions between the two sites are caused by different climate, hydrology, soil physical properties, vegetation type and NPP. For Kytalyk the simulated CH 4 fluxes show similar trends during the growing season, having average values for 2004 to 2006 between 1.29?2.09 mg CH 4 m ?2 h ?1 . At Stordalen the simulated fluxes show a slightly lower average value for the same years (3.52 mg CH 4 m ?2 h ?1 ) than the observed 4.7 mg CH 4 m ?2 h ?1 . The effect of the longer growing season at Stordalen is simulated correctly. Our study shows that modelling of arctic CH 4 fluxes is improved by adding a relatively simple hydrological model that simulates the water table position from generic weather data. We conclude that CH 4 fluxes at these sites are less sensitive to temperature variation than to water table variations. Furthermore, parameter uncertainty at site level in wetland CH 4 process models is an important factor in large scale modelling of CH 4 fluxes. Article in Journal/Newspaper Abisko Arctic Northern Sweden permafrost Siberia Institut national des sciences de l'Univers: HAL-INSU Arctic Abisko ENVELOPE(18.829,18.829,68.349,68.349) Indigirka ENVELOPE(149.609,149.609,70.929,70.929) Stordalen ENVELOPE(7.337,7.337,62.510,62.510) Torneträsk ENVELOPE(18.861,18.861,68.392,68.392) |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Petrescu, A. M. R. van Huissteden, J. C. Jackowicz-Korczynski, M. Yurova, A. Christensen, T. R. Crill, P. M. Maximov, T. C. Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization |
topic_facet |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience This study compares the CH 4 fluxes from two arctic wetland sites of different annual temperatures during 2004 to 2006. The PEATLAND-VU model was used to simulate the emissions. The CH 4 module of PEATLAND-VU is based on the Walter-Heimann model. The first site is located in northeast Siberia, Indigirka lowlands, Kytalyk reserve (70° N, 147° E) in a continuous permafrost region with mean annual temperatures of ?14.3°C. The other site is Stordalen mire in the eastern part of Lake Torneträsk (68° N, 19° E), ten kilometres east of Abisko, northern Sweden. It is located in a discontinuous permafrost region. Stordalen has a sub arctic climate with a mean annual temperature of ?0.7°C. Model input consisted of observed temperature, precipitation and snow cover data. In all cases, modelled CH 4 emissions show a direct correlation between variations in water table and soil temperature variations. The differences in CH 4 emissions between the two sites are caused by different climate, hydrology, soil physical properties, vegetation type and NPP. For Kytalyk the simulated CH 4 fluxes show similar trends during the growing season, having average values for 2004 to 2006 between 1.29?2.09 mg CH 4 m ?2 h ?1 . At Stordalen the simulated fluxes show a slightly lower average value for the same years (3.52 mg CH 4 m ?2 h ?1 ) than the observed 4.7 mg CH 4 m ?2 h ?1 . The effect of the longer growing season at Stordalen is simulated correctly. Our study shows that modelling of arctic CH 4 fluxes is improved by adding a relatively simple hydrological model that simulates the water table position from generic weather data. We conclude that CH 4 fluxes at these sites are less sensitive to temperature variation than to water table variations. Furthermore, parameter uncertainty at site level in wetland CH 4 process models is an important factor in large scale modelling of CH 4 fluxes. |
author2 |
Faculty of Earth and Life Sciences Amsterdam (FALW) Vrije Universiteit Amsterdam Amsterdam (VU) Skane University Hospital Lund Department of Geology and Geochemistry Stockholm Stockholm University Institute of Biological Problems of Cryolithozone Siberian Branch of the Russian Academy of Sciences (SB RAS) |
format |
Article in Journal/Newspaper |
author |
Petrescu, A. M. R. van Huissteden, J. C. Jackowicz-Korczynski, M. Yurova, A. Christensen, T. R. Crill, P. M. Maximov, T. C. |
author_facet |
Petrescu, A. M. R. van Huissteden, J. C. Jackowicz-Korczynski, M. Yurova, A. Christensen, T. R. Crill, P. M. Maximov, T. C. |
author_sort |
Petrescu, A. M. R. |
title |
Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization |
title_short |
Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization |
title_full |
Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization |
title_fullStr |
Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization |
title_full_unstemmed |
Modelling CH 4 emissions from arctic wetlands: effects of hydrological parameterization |
title_sort |
modelling ch 4 emissions from arctic wetlands: effects of hydrological parameterization |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00297919 https://hal.science/hal-00297919/document https://hal.science/hal-00297919/file/bgd-4-3195-2007.pdf |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) ENVELOPE(149.609,149.609,70.929,70.929) ENVELOPE(7.337,7.337,62.510,62.510) ENVELOPE(18.861,18.861,68.392,68.392) |
geographic |
Arctic Abisko Indigirka Stordalen Torneträsk |
geographic_facet |
Arctic Abisko Indigirka Stordalen Torneträsk |
genre |
Abisko Arctic Northern Sweden permafrost Siberia |
genre_facet |
Abisko Arctic Northern Sweden permafrost Siberia |
op_source |
ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.science/hal-00297919 Biogeosciences Discussions, 2007, 4 (5), pp.3195-3227 |
op_relation |
hal-00297919 https://hal.science/hal-00297919 https://hal.science/hal-00297919/document https://hal.science/hal-00297919/file/bgd-4-3195-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782337769383657472 |