Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung
Thermokarst lakes are strong emitters of the greenhouse gas methane. Especially in regions where permafrost and glaciers are degrading large geological methane reservoirs, which were trapped for thousands of years by these cryosphere caps, are releasing gas. The high methane flux causes open water h...
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ftawi:oai:epic.awi.de:48813 2024-09-09T19:44:33+00:00 Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung Vu Tuyen, Hoang Anh 2017-12-04 https://epic.awi.de/id/eprint/48813/ https://hdl.handle.net/10013/epic.872eea05-3d0c-4302-b2c5-d1151e3ce98d unknown Vu Tuyen, H. A. (2017) Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung , Bachelor thesis, University of Potsdam. hdl:10013/epic.872eea05-3d0c-4302-b2c5-d1151e3ce98d EPIC360 p. Thesis notRev 2017 ftawi 2024-06-24T04:21:00Z Thermokarst lakes are strong emitters of the greenhouse gas methane. Especially in regions where permafrost and glaciers are degrading large geological methane reservoirs, which were trapped for thousands of years by these cryosphere caps, are releasing gas. The high methane flux causes open water holes on lake ice. To map and characterise these holes, using only high resolution panchromatic satellite imagery, 2 methods were tested. The analysis contains an image segmentation and an overlay analysis both performed with ArcMap. The results show that an approximate location of a potential seep can be generated from panchromatic images, if interfering parts of the image such as shadows are excluded from the analysis. These geodata can be supportive for field work. Thesis Ice permafrost Thermokarst Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
Thermokarst lakes are strong emitters of the greenhouse gas methane. Especially in regions where permafrost and glaciers are degrading large geological methane reservoirs, which were trapped for thousands of years by these cryosphere caps, are releasing gas. The high methane flux causes open water holes on lake ice. To map and characterise these holes, using only high resolution panchromatic satellite imagery, 2 methods were tested. The analysis contains an image segmentation and an overlay analysis both performed with ArcMap. The results show that an approximate location of a potential seep can be generated from panchromatic images, if interfering parts of the image such as shadows are excluded from the analysis. These geodata can be supportive for field work. |
format |
Thesis |
author |
Vu Tuyen, Hoang Anh |
spellingShingle |
Vu Tuyen, Hoang Anh Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung |
author_facet |
Vu Tuyen, Hoang Anh |
author_sort |
Vu Tuyen, Hoang Anh |
title |
Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung |
title_short |
Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung |
title_full |
Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung |
title_fullStr |
Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung |
title_full_unstemmed |
Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung |
title_sort |
detektierung und kartierung von methanquellen in eisbedeckten seen mittels hochauflösender fernerkundung |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/48813/ https://hdl.handle.net/10013/epic.872eea05-3d0c-4302-b2c5-d1151e3ce98d |
genre |
Ice permafrost Thermokarst |
genre_facet |
Ice permafrost Thermokarst |
op_source |
EPIC360 p. |
op_relation |
Vu Tuyen, H. A. (2017) Detektierung und Kartierung von Methanquellen in eisbedeckten Seen mittels hochauflösender Fernerkundung , Bachelor thesis, University of Potsdam. hdl:10013/epic.872eea05-3d0c-4302-b2c5-d1151e3ce98d |
_version_ |
1809914224375234560 |