MASS MOVEMENTS OF AN ALPINE ROCK GLACIER
Rock glaciers, tonguelike bodies consisting of angular rock debris frozen in interstitial ice, may flow with velocities varying from a few centimeter up to several meters per year. Recent ground warming may generate an accelerated slope movement related to permafrost creep. Newer generations of comm...
Published in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 https://noa.gwlb.de/receive/cop_mods_00001959 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00001917/isprs-archives-XLII-2-W13-215-2019.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W13/215/2019/isprs-archives-XLII-2-W13-215-2019.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00001959 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00001959 2023-05-15T16:37:44+02:00 MASS MOVEMENTS OF AN ALPINE ROCK GLACIER Boesch, R. Graf, C. 2019-06 electronic https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 https://noa.gwlb.de/receive/cop_mods_00001959 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00001917/isprs-archives-XLII-2-W13-215-2019.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W13/215/2019/isprs-archives-XLII-2-W13-215-2019.pdf eng eng Copernicus Publications ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences -- http://www.isprs.org/publications/archives.aspx -- 2194-9034 https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 https://noa.gwlb.de/receive/cop_mods_00001959 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00001917/isprs-archives-XLII-2-W13-215-2019.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W13/215/2019/isprs-archives-XLII-2-W13-215-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 2022-02-08T23:01:19Z Rock glaciers, tonguelike bodies consisting of angular rock debris frozen in interstitial ice, may flow with velocities varying from a few centimeter up to several meters per year. Recent ground warming may generate an accelerated slope movement related to permafrost creep. Newer generations of commercial off-the-shelf drones like DJI Mavic are cost-effective, lightweight and still have a sufficient pay load reserve for flights at 2800 m.a.s.l. This allows that a two men crew can carry the necessary reference and drone equipment in a high alpine environment and a flight campaign can be conducted within one day. Using different cameras with similar optical resolution allows to generate DSMs with comparable accuracy. The DSM resolution should be 10 cm or better to achieve robust results. Motion tracking of rock glacier with tie point matching algorithms SIFT or SURF combined with an appropriate filter method allows to distinguish different movement patterns within local neighborhood. Compared to point-wise GPS-based methods or image-based cross-correlation approaches, tie point matching allows to detect inhomogeneous movement patterns, which are typical for rock glaciers in a high alpine environment. Article in Journal/Newspaper Ice permafrost Niedersächsisches Online-Archiv NOA The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W13 215 219 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Boesch, R. Graf, C. MASS MOVEMENTS OF AN ALPINE ROCK GLACIER |
topic_facet |
article Verlagsveröffentlichung |
description |
Rock glaciers, tonguelike bodies consisting of angular rock debris frozen in interstitial ice, may flow with velocities varying from a few centimeter up to several meters per year. Recent ground warming may generate an accelerated slope movement related to permafrost creep. Newer generations of commercial off-the-shelf drones like DJI Mavic are cost-effective, lightweight and still have a sufficient pay load reserve for flights at 2800 m.a.s.l. This allows that a two men crew can carry the necessary reference and drone equipment in a high alpine environment and a flight campaign can be conducted within one day. Using different cameras with similar optical resolution allows to generate DSMs with comparable accuracy. The DSM resolution should be 10 cm or better to achieve robust results. Motion tracking of rock glacier with tie point matching algorithms SIFT or SURF combined with an appropriate filter method allows to distinguish different movement patterns within local neighborhood. Compared to point-wise GPS-based methods or image-based cross-correlation approaches, tie point matching allows to detect inhomogeneous movement patterns, which are typical for rock glaciers in a high alpine environment. |
format |
Article in Journal/Newspaper |
author |
Boesch, R. Graf, C. |
author_facet |
Boesch, R. Graf, C. |
author_sort |
Boesch, R. |
title |
MASS MOVEMENTS OF AN ALPINE ROCK GLACIER |
title_short |
MASS MOVEMENTS OF AN ALPINE ROCK GLACIER |
title_full |
MASS MOVEMENTS OF AN ALPINE ROCK GLACIER |
title_fullStr |
MASS MOVEMENTS OF AN ALPINE ROCK GLACIER |
title_full_unstemmed |
MASS MOVEMENTS OF AN ALPINE ROCK GLACIER |
title_sort |
mass movements of an alpine rock glacier |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 https://noa.gwlb.de/receive/cop_mods_00001959 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00001917/isprs-archives-XLII-2-W13-215-2019.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W13/215/2019/isprs-archives-XLII-2-W13-215-2019.pdf |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences -- http://www.isprs.org/publications/archives.aspx -- 2194-9034 https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 https://noa.gwlb.de/receive/cop_mods_00001959 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00001917/isprs-archives-XLII-2-W13-215-2019.pdf https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W13/215/2019/isprs-archives-XLII-2-W13-215-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/isprs-archives-XLII-2-W13-215-2019 |
container_title |
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
XLII-2/W13 |
container_start_page |
215 |
op_container_end_page |
219 |
_version_ |
1766028042630594560 |