Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions
High latitude wetlands are important for understanding climate change risks because these environments sink carbon and emit methane. Fine scale heterogeneity of wetland landscapes pose challenges for producing the greenhouse gas flux inventories based on point observations. To reduce uncertainties a...
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fttomskstateuniv:vtls:000657206 2023-05-15T17:54:28+02:00 Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions Glagolev Michael V. Lapshina Elena D. Sabrekov Alexander F. Maksyutov Shamil Sh. Terentieva Irina Evgenievna 2016 application/pdf https://doi.org/10.5194/bgd-12-20149-2015 http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000657206 eng eng Biogeosciences. 2016. Vol. 13 № 16. P. 4615-4626 водно-болотные угодья Западная Сибирь парниковые газы карты использование спутниковых фотоснимков статьи в журналах info:eu-repo/semantics/article 2016 fttomskstateuniv https://doi.org/10.5194/bgd-12-20149-2015 2019-06-11T14:44:45Z High latitude wetlands are important for understanding climate change risks because these environments sink carbon and emit methane. Fine scale heterogeneity of wetland landscapes pose challenges for producing the greenhouse gas flux inventories based on point observations. To reduce uncertainties at the regional scale we mapped wetlands and water bodies in the taiga zone of West Siberia on a scene-by-scene basis using a supervised classification of Landsat imagery. The training dataset was based on high-resolution images and field data that were collected at 28 test areas. Classification scheme was aimed at methane inventory applications and included 7 wetland ecosystem types composing 9 wetland complexes in different proportions. Accuracy assessment based on 1082 validation polygons of 10 × 10 pixels indicated an overall map accuracy of 79 %. The total area of the wetlands and water bodies was estimated to be 52.4 Mha or 4-12 % of the global wetland area. Ridge-hollow complexes prevail in WS's taiga occupying 33 % of the domain followed by forested bogs or "ryams" (23 %) ridge-hollow-lake complexes (16 %) open fens (8 %) palsa complexes (7 %) open bogs (5 %) patterned fens (4 %) and swamps (4 %). Various oligotrophic environments are dominant among the wetland ecosystems while fens cover only 14 % of the area. Because of the significant update in the wetland ecosystem coverage a considerable revaluation of the total CH4 emissions from the entire region is expected. A new Landsat-based map of WS's taiga wetlands provides a benchmark for validation of coarse-resolution global land cover products and wetland datasets in high latitudes. Article in Journal/Newspaper palsa taiga Siberia Tomsk State University Research Library |
institution |
Open Polar |
collection |
Tomsk State University Research Library |
op_collection_id |
fttomskstateuniv |
language |
English |
topic |
водно-болотные угодья Западная Сибирь парниковые газы карты использование спутниковых фотоснимков |
spellingShingle |
водно-болотные угодья Западная Сибирь парниковые газы карты использование спутниковых фотоснимков Glagolev Michael V. Lapshina Elena D. Sabrekov Alexander F. Maksyutov Shamil Sh. Terentieva Irina Evgenievna Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions |
topic_facet |
водно-болотные угодья Западная Сибирь парниковые газы карты использование спутниковых фотоснимков |
description |
High latitude wetlands are important for understanding climate change risks because these environments sink carbon and emit methane. Fine scale heterogeneity of wetland landscapes pose challenges for producing the greenhouse gas flux inventories based on point observations. To reduce uncertainties at the regional scale we mapped wetlands and water bodies in the taiga zone of West Siberia on a scene-by-scene basis using a supervised classification of Landsat imagery. The training dataset was based on high-resolution images and field data that were collected at 28 test areas. Classification scheme was aimed at methane inventory applications and included 7 wetland ecosystem types composing 9 wetland complexes in different proportions. Accuracy assessment based on 1082 validation polygons of 10 × 10 pixels indicated an overall map accuracy of 79 %. The total area of the wetlands and water bodies was estimated to be 52.4 Mha or 4-12 % of the global wetland area. Ridge-hollow complexes prevail in WS's taiga occupying 33 % of the domain followed by forested bogs or "ryams" (23 %) ridge-hollow-lake complexes (16 %) open fens (8 %) palsa complexes (7 %) open bogs (5 %) patterned fens (4 %) and swamps (4 %). Various oligotrophic environments are dominant among the wetland ecosystems while fens cover only 14 % of the area. Because of the significant update in the wetland ecosystem coverage a considerable revaluation of the total CH4 emissions from the entire region is expected. A new Landsat-based map of WS's taiga wetlands provides a benchmark for validation of coarse-resolution global land cover products and wetland datasets in high latitudes. |
format |
Article in Journal/Newspaper |
author |
Glagolev Michael V. Lapshina Elena D. Sabrekov Alexander F. Maksyutov Shamil Sh. Terentieva Irina Evgenievna |
author_facet |
Glagolev Michael V. Lapshina Elena D. Sabrekov Alexander F. Maksyutov Shamil Sh. Terentieva Irina Evgenievna |
author_sort |
Glagolev |
title |
Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions |
title_short |
Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions |
title_full |
Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions |
title_fullStr |
Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions |
title_full_unstemmed |
Mapping of West Siberian taiga wetland complexes using Landsat imagery: implications for methane emissions |
title_sort |
mapping of west siberian taiga wetland complexes using landsat imagery: implications for methane emissions |
publishDate |
2016 |
url |
https://doi.org/10.5194/bgd-12-20149-2015 http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000657206 |
genre |
palsa taiga Siberia |
genre_facet |
palsa taiga Siberia |
op_source |
Biogeosciences. 2016. Vol. 13 № 16. P. 4615-4626 |
op_doi |
https://doi.org/10.5194/bgd-12-20149-2015 |
_version_ |
1766162222535409664 |