Modelling outburst floods from moraine-dammed glacial lakes
نویسندگان
چکیده
منابع مشابه
A procedure for making objective preliminary assessments of outburst flood hazard from moraine- dammed lakes in southwestern British Columbia
Existing methods of evaluating the hazard posed by moraine-dammed lakes are unsystematic, subjective, and depend on the expertise and biases of the geoscientist. In this paper, we provide a framework for making objective preliminary assessments of outburst flood hazard in southwestern British Columbia. Our procedure relies on remote sensing methods and requires only limited knowledge of glacial...
متن کاملRemote sensing-based hazard assessment of glacial lakes in Sikkim Himalaya
Glacial lake is a water body formed in/under/besides and/or in front of a glacier due to glacial dynamics. Such high-altitude glacial lakes are hazardous to humanity and infrastructure as they can drain instantaneous and create devastating floods in the downstream. The formation of moraine-dammed glacial lakes and glacial lake outburst flood (GLOF) is major concern in countries such as Bhutan, ...
متن کاملNew method for assessing the susceptibility of glacial lakes to outburst floods in the Cordillera Blanca, Peru
This paper presents a new and easily repeatable method for assessing the susceptibility of glacial lakes to outburst floods (GLOFs) within the Peruvian region of the Cordillera Blanca. The presented method was designed to: (a) be repeatable (from the point of view of the demands on input data), (b) be reproducible (to provide an instructive guide for different assessors), (c) provide multiple r...
متن کاملStatistical, remote sensing-based approach for estimating the probability of catastrophic drainage from moraine-dammed lakes in southwestern British Columbia
Safe development of glacierized regions requires a systematic and objective method for assessing the hazard posed by morainedammed lakes. Empirical relations exist for estimating outburst flood magnitude, but, until now, no standardized procedures have been developed for estimating outburst flood probability. To make quick and inexpensive preliminary assessments that are reproducible, we propos...
متن کاملAnatomy of terminal moraine segments and implied lake stability on Ngozumpa Glacier, Nepal, from electrical resistivity tomography (ERT)
Moraine-dammed lakes at debris-covered glaciers are becoming increasingly common and pose significant outburst flood hazards if the dam is breached. While moraine subsurface structure and internal processes are likely to influence dam stability, only few sites have so far been investigated. We conducted electrical resistivity tomography (ERT) surveys at two sites on the terminal moraine complex...
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ژورنال
عنوان ژورنال: Earth-Science Reviews
سال: 2014
ISSN: 0012-8252
DOI: 10.1016/j.earscirev.2014.03.009