Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview
Process interactions and chain reactions, the present shift of cryospheric hazard zones due to atmospheric warming, and the potential far reach of glacier disasters make it necessary to apply modern remote sensing techniques for the assessment of glacier and permafrost hazards in high-mountains. Typ...
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ftdoajarticles:oai:doaj.org/article:826f7d15c8514b7fb4da816311f5dc0a 2023-05-15T17:56:38+02:00 Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview A. Kääb C. Huggel L. Fischer S. Guex F. Paul I. Roer N. Salzmann S. Schlaefli K. Schmutz D. Schneider T. Strozzi Y. Weidmann 2005-01-01T00:00:00Z https://doaj.org/article/826f7d15c8514b7fb4da816311f5dc0a EN eng Copernicus Publications http://www.nat-hazards-earth-syst-sci.net/5/527/2005/nhess-5-527-2005.pdf https://doaj.org/toc/1561-8633 https://doaj.org/toc/1684-9981 1561-8633 1684-9981 https://doaj.org/article/826f7d15c8514b7fb4da816311f5dc0a Natural Hazards and Earth System Sciences, Vol 5, Iss 4, Pp 527-554 (2005) Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 Geology QE1-996.5 article 2005 ftdoajarticles 2022-12-31T05:33:07Z Process interactions and chain reactions, the present shift of cryospheric hazard zones due to atmospheric warming, and the potential far reach of glacier disasters make it necessary to apply modern remote sensing techniques for the assessment of glacier and permafrost hazards in high-mountains. Typically, related hazard source areas are situated in remote regions, often difficult to access for physical and/or political reasons. In this contribution we provide an overview of air- and spaceborne remote sensing methods suitable for glacier and permafrost hazard assessment and disaster management. A number of image classification and change detection techniques support high-mountain hazard studies. Digital terrain models (DTMs), derived from optical stereo data, synthetic aperture radar or laserscanning, represent one of the most important data sets for investigating high-mountain processes. Fusion of satellite stereo-derived DTMs with the DTM from the Shuttle Radar Topography Mission (SRTM) is a promising way to combine the advantages of both technologies. Large changes in terrain volume such as from avalanche deposits can indeed be measured even by repeat satellite DTMs. Multitemporal data can be used to derive surface displacements on glaciers, permafrost and landslides. Combining DTMs, results from spectral image classification, and multitemporal data from change detection and displacement measurements significantly improves the detection of hazard potentials. Modelling of hazardous processes based on geographic information systems (GIS) complements the remote sensing analyses towards an integrated assessment of glacier and permafrost hazards in mountains. Major present limitations in the application of remote sensing to glacier and permafrost hazards in mountains are, on the one hand, of technical nature (e.g. combination and fusion of different methods and data; improved understanding of microwave backscatter). On the other hand, better dissemination of remote sensing expertise towards institutions involved ... Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 Geology QE1-996.5 A. Kääb C. Huggel L. Fischer S. Guex F. Paul I. Roer N. Salzmann S. Schlaefli K. Schmutz D. Schneider T. Strozzi Y. Weidmann Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
topic_facet |
Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Process interactions and chain reactions, the present shift of cryospheric hazard zones due to atmospheric warming, and the potential far reach of glacier disasters make it necessary to apply modern remote sensing techniques for the assessment of glacier and permafrost hazards in high-mountains. Typically, related hazard source areas are situated in remote regions, often difficult to access for physical and/or political reasons. In this contribution we provide an overview of air- and spaceborne remote sensing methods suitable for glacier and permafrost hazard assessment and disaster management. A number of image classification and change detection techniques support high-mountain hazard studies. Digital terrain models (DTMs), derived from optical stereo data, synthetic aperture radar or laserscanning, represent one of the most important data sets for investigating high-mountain processes. Fusion of satellite stereo-derived DTMs with the DTM from the Shuttle Radar Topography Mission (SRTM) is a promising way to combine the advantages of both technologies. Large changes in terrain volume such as from avalanche deposits can indeed be measured even by repeat satellite DTMs. Multitemporal data can be used to derive surface displacements on glaciers, permafrost and landslides. Combining DTMs, results from spectral image classification, and multitemporal data from change detection and displacement measurements significantly improves the detection of hazard potentials. Modelling of hazardous processes based on geographic information systems (GIS) complements the remote sensing analyses towards an integrated assessment of glacier and permafrost hazards in mountains. Major present limitations in the application of remote sensing to glacier and permafrost hazards in mountains are, on the one hand, of technical nature (e.g. combination and fusion of different methods and data; improved understanding of microwave backscatter). On the other hand, better dissemination of remote sensing expertise towards institutions involved ... |
format |
Article in Journal/Newspaper |
author |
A. Kääb C. Huggel L. Fischer S. Guex F. Paul I. Roer N. Salzmann S. Schlaefli K. Schmutz D. Schneider T. Strozzi Y. Weidmann |
author_facet |
A. Kääb C. Huggel L. Fischer S. Guex F. Paul I. Roer N. Salzmann S. Schlaefli K. Schmutz D. Schneider T. Strozzi Y. Weidmann |
author_sort |
A. Kääb |
title |
Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
title_short |
Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
title_full |
Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
title_fullStr |
Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
title_full_unstemmed |
Remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
title_sort |
remote sensing of glacier- and permafrost-related hazards in high mountains: an overview |
publisher |
Copernicus Publications |
publishDate |
2005 |
url |
https://doaj.org/article/826f7d15c8514b7fb4da816311f5dc0a |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Natural Hazards and Earth System Sciences, Vol 5, Iss 4, Pp 527-554 (2005) |
op_relation |
http://www.nat-hazards-earth-syst-sci.net/5/527/2005/nhess-5-527-2005.pdf https://doaj.org/toc/1561-8633 https://doaj.org/toc/1684-9981 1561-8633 1684-9981 https://doaj.org/article/826f7d15c8514b7fb4da816311f5dc0a |
_version_ |
1766164866738946048 |