 |
| Titel |
Glacial lake mapping with very high resolution satellite SAR data |
| VerfasserIn |
T. Strozzi, A. Wiesmann, A. Kääb, S. Joshi, P. Mool |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 12, no. 8 ; Nr. 12, no. 8 (2012-08-07), S.2487-2498 |
| Datensatznummer |
250011043
|
| Publikation (Nr.) |
 copernicus.org/nhess-12-2487-2012.pdf |
|
|
|
|
|
| Zusammenfassung |
| Floods resulting from the outbursts of glacial lakes are among the most
far-reaching disasters in high mountain regions. Glacial lakes are typically
located in remote areas and space-borne remote sensing data are an important
source of information about the occurrence and development of such lakes.
Here we show that very high resolution satellite Synthetic Aperture Radar
(SAR) data can be employed for reliably mapping glacial lakes. Results in
the Alps, Pamir and Himalaya using TerraSAR-X and Radarsat-2 data are
discussed in comparison to in-situ information, and high-resolution
satellite optical and radar imagery. The performance of the satellite SAR
data is best during the snow- and ice-free season. In the broader
perspective of hazard management, the detection of glacial lakes and the
monitoring of their changes from very high-resolution satellite SAR
intensity images contributes to the initial assessment of hazards related to
glacial lakes, but a more integrated, multi-level approach needs also to
include other relevant information such as glacier outlines and outline
changes or the identification of unstable slopes above the lake and the
surrounding area, information types to which SAR analysis techniques can also
contribute. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|