Outburst flood simulations of various dam failure scenarios from Tsho Rolpa glacial lake, Nepal, 2020
Cite this dataset as:
Chen, H.; Liang, Q.; Xiao, W. (2021). Outburst flood simulations of various dam failure scenarios from Tsho Rolpa glacial lake, Nepal, 2020. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/f4292d99-de93-4a28-a821-b2a6a826df4c
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This dataset is available under the terms of the Open Government Licence 
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wget --user=YOUR_USERNAME --password=YOUR_PASSWORD --auth-no-challenge https://catalogue.ceh.ac.uk/datastore/eidchub/f4292d99-de93-4a28-a821-b2a6a826df4c
https://doi.org/10.5285/f4292d99-de93-4a28-a821-b2a6a826df4c
This dataset contains maximum water depth and maximum water velocity for 12 different Glacial Lake outburst floods (GLOFs) scenarios of the Tsho Rolpa Lake, Nepal. Also included is the water depth of dam breach flow and discharge of dam breach flow under each scenario. The GLOFs scenarios were created using a simple dam breach model. A high-performance hydrodynamic model was then used to simulate the resulting flood hydrodynamics.
Publication date: 2021-10-07
View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)
Formats
Comma-separated values (CSV), TIFF
Spatial information
Study area
Spatial representation types
Raster
Tabular (text)
Tabular (text)
Spatial reference system
WGS 84
Temporal information
Temporal extent
2020-03-31 to 2020-03-31
Provenance & quality
A commonly used empirical breach model was adopted to represent the dam breach formation process caused by overtopping. The breach was assumed to start from a small channel formed at the dam crest (initial breach) and grows into a trapezoidal shape with a side-slope of 1:1 during the time of failure. The model further assumes an initial breach depth and a final breach depth, which can be quantified and prescribed according to current dam conditions. A fully hydrodynamic model based on the 2-D depth-averaged shallow water equations (SWEs) was adopted to predict the flooding processes driven by the flow out of the breach of the moraine dam.
Licensing and constraints
This dataset is available under the terms of the Open Government Licence
Cite this dataset as:
Chen, H.; Liang, Q.; Xiao, W. (2021). Outburst flood simulations of various dam failure scenarios from Tsho Rolpa glacial lake, Nepal, 2020. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/f4292d99-de93-4a28-a821-b2a6a826df4c
Related
This dataset is included in the following collections
Field survey and glacier lake outburst flood risk assessment data of Tsho Rolpa glacial lake, Nepal
Correspondence/contact details
Other contacts
Rights holder
Loughborough University
Custodian
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
info@eidc.ac.uk
Additional metadata
Keywords
Funding
Natural Environment Research Council Award: NE/S005919/1
Last updated
21 March 2025 09:24