Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network
Onshore seeps are recognized as strong sources of methane (CH4), the second most important greenhouse gas. Seeps actively emitting CH4 were recently found in floodplains of West Siberian rivers. Despite the origin of CH4 in these seeps is not fully understood, they can make substantial contribution...
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ftmdpi:oai:mdpi.com:/2072-4292/14/11/2661/ 2023-08-20T04:08:52+02:00 Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network Irina Terentieva Ilya Filippov Aleksandr Sabrekov Mikhail Glagolev agris 2022-06-02 application/pdf https://doi.org/10.3390/rs14112661 EN eng Multidisciplinary Digital Publishing Institute Biogeosciences Remote Sensing https://dx.doi.org/10.3390/rs14112661 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 14; Issue 11; Pages: 2661 Western Siberia seeps floodplains methane emission convolutional neural networks sentinel-2 mapping Text 2022 ftmdpi https://doi.org/10.3390/rs14112661 2023-08-01T05:15:31Z Onshore seeps are recognized as strong sources of methane (CH4), the second most important greenhouse gas. Seeps actively emitting CH4 were recently found in floodplains of West Siberian rivers. Despite the origin of CH4 in these seeps is not fully understood, they can make substantial contribution in regional greenhouse gas emission. We used high-resolution satellite Sentinel-2 imagery to estimate seep areas at a regional scale. Convolutional neural network based on U-Net architecture was implemented to overcome difficulties with seep recognition. Ground-based field investigations and unmanned aerial vehicle footage were coupled to provide reliable training dataset. The seep areas were estimated at 2885 km2 or 1.5% of the studied region; most seep areas were found within the Ob’ river floodplain. The overall accuracy of the final map reached 86.1%. Our study demonstrates that seeps are widespread throughout the region and provides a basis to estimate seep CH4 flux in entire Western Siberia. Text ob river Siberia MDPI Open Access Publishing Remote Sensing 14 11 2661 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Western Siberia seeps floodplains methane emission convolutional neural networks sentinel-2 mapping |
spellingShingle |
Western Siberia seeps floodplains methane emission convolutional neural networks sentinel-2 mapping Irina Terentieva Ilya Filippov Aleksandr Sabrekov Mikhail Glagolev Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network |
topic_facet |
Western Siberia seeps floodplains methane emission convolutional neural networks sentinel-2 mapping |
description |
Onshore seeps are recognized as strong sources of methane (CH4), the second most important greenhouse gas. Seeps actively emitting CH4 were recently found in floodplains of West Siberian rivers. Despite the origin of CH4 in these seeps is not fully understood, they can make substantial contribution in regional greenhouse gas emission. We used high-resolution satellite Sentinel-2 imagery to estimate seep areas at a regional scale. Convolutional neural network based on U-Net architecture was implemented to overcome difficulties with seep recognition. Ground-based field investigations and unmanned aerial vehicle footage were coupled to provide reliable training dataset. The seep areas were estimated at 2885 km2 or 1.5% of the studied region; most seep areas were found within the Ob’ river floodplain. The overall accuracy of the final map reached 86.1%. Our study demonstrates that seeps are widespread throughout the region and provides a basis to estimate seep CH4 flux in entire Western Siberia. |
format |
Text |
author |
Irina Terentieva Ilya Filippov Aleksandr Sabrekov Mikhail Glagolev |
author_facet |
Irina Terentieva Ilya Filippov Aleksandr Sabrekov Mikhail Glagolev |
author_sort |
Irina Terentieva |
title |
Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network |
title_short |
Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network |
title_full |
Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network |
title_fullStr |
Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network |
title_full_unstemmed |
Mapping Onshore CH4 Seeps in Western Siberian Floodplains Using Convolutional Neural Network |
title_sort |
mapping onshore ch4 seeps in western siberian floodplains using convolutional neural network |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14112661 |
op_coverage |
agris |
genre |
ob river Siberia |
genre_facet |
ob river Siberia |
op_source |
Remote Sensing; Volume 14; Issue 11; Pages: 2661 |
op_relation |
Biogeosciences Remote Sensing https://dx.doi.org/10.3390/rs14112661 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs14112661 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
11 |
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2661 |
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1774721421746896896 |