Header

UZH-Logo

Maintenance Infos

Evaluation of QuickBird and IKONOS imagery for assessment of high-mountain hazards


Huggel, Christian; Kääb, Andreas; Salzmann, Nadine (2006). Evaluation of QuickBird and IKONOS imagery for assessment of high-mountain hazards. EARSeL eProceedings, 5(1):51-62.

Abstract

The potential of satellite remote sensing for high-mountain hazard assessments has been increasingly recognized in recent years. So far, mainly satellite sensors such as Landsat-5/7, SPOT-3/4, or ASTER have been used for investigating glacial hazards. The recent emergence of commercial satellite sensors with very high spatial resolution in the sub-metre range opens new perspectives for applications in the area of natural hazards. Satellite sensors such as IKONOS, QuickBird or Orbview-3 provide imagery comparable to aerial photography. Presumably due to the recent emergence of these satellite sensors and the high image acquisition costs, studies on the application of QuickBird and IKONOS data for high-mountain hazards are largely missing yet. This contribution therefore aims at evaluating the potential of QuickBird and IKONOS imagery for high-mountain, in particular glacial, hazard assessments. QuickBird imagery was used in relation with a major rock-ice avalanche in the Northern Caucasus in 2002 for detailed analysis of avalanche formation and dynamics, for assessment of ice dam, lake and related flood hazards, and for mass movement model support. IKONOS imagery was used in the Swiss Alps for identification of potentially unstable debris slopes and debris flow formation in combination with digital terrain modelling. Limitations of this type of satellite data for high-mountain hazard studies are related to the high acquisition cost, and problems to collect sufficiently accurate ground reference data for geocorrection. However, this study shows that for the demonstrated applications in remote areas the achieved absolute ground positional error of 20-30 m allows of reasonable results. It is concluded that the QuickBird and IKONOS imagery are powerful tools for high-mountain hazard assessments with a high potential in the future.

Abstract

The potential of satellite remote sensing for high-mountain hazard assessments has been increasingly recognized in recent years. So far, mainly satellite sensors such as Landsat-5/7, SPOT-3/4, or ASTER have been used for investigating glacial hazards. The recent emergence of commercial satellite sensors with very high spatial resolution in the sub-metre range opens new perspectives for applications in the area of natural hazards. Satellite sensors such as IKONOS, QuickBird or Orbview-3 provide imagery comparable to aerial photography. Presumably due to the recent emergence of these satellite sensors and the high image acquisition costs, studies on the application of QuickBird and IKONOS data for high-mountain hazards are largely missing yet. This contribution therefore aims at evaluating the potential of QuickBird and IKONOS imagery for high-mountain, in particular glacial, hazard assessments. QuickBird imagery was used in relation with a major rock-ice avalanche in the Northern Caucasus in 2002 for detailed analysis of avalanche formation and dynamics, for assessment of ice dam, lake and related flood hazards, and for mass movement model support. IKONOS imagery was used in the Swiss Alps for identification of potentially unstable debris slopes and debris flow formation in combination with digital terrain modelling. Limitations of this type of satellite data for high-mountain hazard studies are related to the high acquisition cost, and problems to collect sufficiently accurate ground reference data for geocorrection. However, this study shows that for the demonstrated applications in remote areas the achieved absolute ground positional error of 20-30 m allows of reasonable results. It is concluded that the QuickBird and IKONOS imagery are powerful tools for high-mountain hazard assessments with a high potential in the future.

Statistics

Downloads

81 downloads since deposited on 08 May 2013
35 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Date:2006
Deposited On:08 May 2013 12:27
Last Modified:05 Apr 2016 16:46
Publisher:European Association of Remote Sensing Laboratories
ISSN:1729-3782
Free access at:Publisher DOI. An embargo period may apply.
Official URL:http://las.physik.uni-oldenburg.de/eProceedings/vol05_1/05_1_huggel1.pdf
Related URLs:http://las.physik.uni-oldenburg.de/eProceedings/vol05_1/05_1_huggel1.html (Organisation)

Download

Preview Icon on Download
Preview
Content: Published Version
Language: English
Filetype: PDF
Size: 3MB

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations