Compiling an Inventory of Glacier-Bed Overdeepenings and Potential New Lakes in De-Glaciating Areas of the Peruvian Andes: Approach, First Results, and Perspectives for Adaptation to Climate Change
| Autor: | Claudia Giráldez, Judith Torres, Wilfried Haeberli, Eliane Braendle, Daniel Colonia, Simone Schauwecker, Alejo Cochachin |
|---|---|
| Přispěvatelé: | University of Zurich, Haeberli, Wilfried |
| Rok vydání: | 2017 |
| Předmět: |
1303 Biochemistry
010504 meteorology & atmospheric sciences Geography Planning and Development Climate change Shuttle Radar Topography Mission Aquatic Science 010502 geochemistry & geophysics 01 natural sciences Biochemistry 2312 Water Science and Technology 3305 Geography Planning and Development Natural hazard climatic change future glacier lake glacier retreat potential hazard outburst flood 910 Geography & travel Hydropower 0105 earth and related environmental sciences Water Science and Technology Hydrology geography geography.geographical_feature_category 1104 Aquatic Science business.industry Global warming Glacier Hazard 10122 Institute of Geography Sustainability Physical geography business Geology |
| Zdroj: | Water; Volume 9; Issue 5; Pages: 336 |
| ISSN: | 2073-4441 |
| Popis: | Global warming causes rapid shrinking of mountain glaciers. New lakes can, thus, form in the future where overdeepenings in the beds of still-existing glaciers are becoming exposed. Such new lakes can be amplifiers of natural hazards to downstream populations, but also constitute tourist attractions, offer new potential for hydropower, and may be of interest for water management. Identification of sites where future lakes will possibly form is, therefore, an essential step to initiate early planning of measures for risk reduction and sustainable use as part of adaptation strategies with respect to impacts from climate change. In order to establish a corresponding knowledge base, a systematic inventory of glacier-bed overdeepenings and possible future lakes was compiled for the still glacierized parts of the Peruvian Andes using the 2003–2010 glacier outlines from the national glacier inventory and the SRTM DEM from the year 2000. The resulting inventory contains 201 sites with overdeepened glacier beds >1 ha (104 m2) where notable future lakes could form, representing a total volume of about 260 million m3. A rough classification was assigned for the most likely formation time of the possible new lakes. Such inventory information sets the stage for analyzing sustainable use and hazard/risk for specific basins or regions. |
| Databáze: | OpenAIRE |
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