Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data
Methane (CH4) fluxes 1997-2010 were studied by combining remotely sensed normalised difference water index (NDWI) with in situ CH4 fluxes from Rylekaerene, a high-Arctic wet tundra ecosystem in the Zackenberg valley, north-eastern Greenland. In situ CH4 fluxes were measured using the closed-chamber...
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ftulundlup:oai:lup.lub.lu.se:3eed01fd-57b3-476d-8824-11298fa87026 2023-05-15T14:53:36+02:00 Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data Tagesson, Torbern Mastepanov, Mikhail Mölder, Meelis Tamstorf, Mikkel P. Eklundh, Lars Smith, Benjamin Sigsgaard, Charlotte Lund, Magnus Ekberg, Anna Falk, Julie Maria Friborg, Thomas Christensen, Torben Ström, Lena 2013 https://lup.lub.lu.se/record/3932357 https://doi.org/10.3402/tellusb.v65i0.19722 eng eng Taylor & Francis https://lup.lub.lu.se/record/3932357 http://dx.doi.org/10.3402/tellusb.v65i0.19722 wos:000319272600001 scopus:84882618838 Tellus. Series B: Chemical and Physical Meteorology; 65, no 19722 (2013) ISSN: 0280-6509 Physical Geography NDWI methane Arctic Landsat climate change contributiontojournal/article info:eu-repo/semantics/article text 2013 ftulundlup https://doi.org/10.3402/tellusb.v65i0.19722 2023-02-01T23:26:54Z Methane (CH4) fluxes 1997-2010 were studied by combining remotely sensed normalised difference water index (NDWI) with in situ CH4 fluxes from Rylekaerene, a high-Arctic wet tundra ecosystem in the Zackenberg valley, north-eastern Greenland. In situ CH4 fluxes were measured using the closed-chamber technique. Regression models between in situ CH4 fluxes and environmental variables [soil temperature (T-soil), water table depth (WtD) and active layer (AL) thickness] were established for different temporal and spatial scales. The relationship between in situ WtD and remotely sensed NDWI was also studied. The regression models were combined and evaluated against in situ CH4 fluxes. The models including NDWI as the input data performed on average slightly better [root mean square error (RMSE) = 1.56] than the models without NDWI (RMSE = 1.67), and they were better in reproducing CH4 flux variability. The CH4 flux model that performed the best included exponential relationships against temporal variation in T-soil and AL, an exponential relationship against spatial variation in WtD and a linear relationship between WtD and remotely sensed NDWI (RMSE = 1.50). There were no trends in modelled CH4 flux budgets between 1997 and 2010. Hence, during this period there were no trends in the soil temperature at 10 cm depth and NDWI. Article in Journal/Newspaper Arctic Climate change Greenland Tundra Zackenberg Lund University Publications (LUP) Arctic Greenland Tellus B: Chemical and Physical Meteorology 65 1 19722 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Physical Geography NDWI methane Arctic Landsat climate change |
spellingShingle |
Physical Geography NDWI methane Arctic Landsat climate change Tagesson, Torbern Mastepanov, Mikhail Mölder, Meelis Tamstorf, Mikkel P. Eklundh, Lars Smith, Benjamin Sigsgaard, Charlotte Lund, Magnus Ekberg, Anna Falk, Julie Maria Friborg, Thomas Christensen, Torben Ström, Lena Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
topic_facet |
Physical Geography NDWI methane Arctic Landsat climate change |
description |
Methane (CH4) fluxes 1997-2010 were studied by combining remotely sensed normalised difference water index (NDWI) with in situ CH4 fluxes from Rylekaerene, a high-Arctic wet tundra ecosystem in the Zackenberg valley, north-eastern Greenland. In situ CH4 fluxes were measured using the closed-chamber technique. Regression models between in situ CH4 fluxes and environmental variables [soil temperature (T-soil), water table depth (WtD) and active layer (AL) thickness] were established for different temporal and spatial scales. The relationship between in situ WtD and remotely sensed NDWI was also studied. The regression models were combined and evaluated against in situ CH4 fluxes. The models including NDWI as the input data performed on average slightly better [root mean square error (RMSE) = 1.56] than the models without NDWI (RMSE = 1.67), and they were better in reproducing CH4 flux variability. The CH4 flux model that performed the best included exponential relationships against temporal variation in T-soil and AL, an exponential relationship against spatial variation in WtD and a linear relationship between WtD and remotely sensed NDWI (RMSE = 1.50). There were no trends in modelled CH4 flux budgets between 1997 and 2010. Hence, during this period there were no trends in the soil temperature at 10 cm depth and NDWI. |
format |
Article in Journal/Newspaper |
author |
Tagesson, Torbern Mastepanov, Mikhail Mölder, Meelis Tamstorf, Mikkel P. Eklundh, Lars Smith, Benjamin Sigsgaard, Charlotte Lund, Magnus Ekberg, Anna Falk, Julie Maria Friborg, Thomas Christensen, Torben Ström, Lena |
author_facet |
Tagesson, Torbern Mastepanov, Mikhail Mölder, Meelis Tamstorf, Mikkel P. Eklundh, Lars Smith, Benjamin Sigsgaard, Charlotte Lund, Magnus Ekberg, Anna Falk, Julie Maria Friborg, Thomas Christensen, Torben Ström, Lena |
author_sort |
Tagesson, Torbern |
title |
Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
title_short |
Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
title_full |
Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
title_fullStr |
Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
title_full_unstemmed |
Modelling of growing season methane fluxes in a high-Arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
title_sort |
modelling of growing season methane fluxes in a high-arctic wet tundra ecosystem 1997-2010 using in situ and high-resolution satellite data |
publisher |
Taylor & Francis |
publishDate |
2013 |
url |
https://lup.lub.lu.se/record/3932357 https://doi.org/10.3402/tellusb.v65i0.19722 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Climate change Greenland Tundra Zackenberg |
genre_facet |
Arctic Climate change Greenland Tundra Zackenberg |
op_source |
Tellus. Series B: Chemical and Physical Meteorology; 65, no 19722 (2013) ISSN: 0280-6509 |
op_relation |
https://lup.lub.lu.se/record/3932357 http://dx.doi.org/10.3402/tellusb.v65i0.19722 wos:000319272600001 scopus:84882618838 |
op_doi |
https://doi.org/10.3402/tellusb.v65i0.19722 |
container_title |
Tellus B: Chemical and Physical Meteorology |
container_volume |
65 |
container_issue |
1 |
container_start_page |
19722 |
_version_ |
1766325208733450240 |