Advanced Search 
Metadata
Extent

Glacial lakes in the Koshi, Gandaki, and Karnali river basins of Nepal, the Tibet Autonomous Region of China, and India

Updated Date: 9/16/2020 1:47:58 PM

The data on glacial lakes in 2015 were derived through a semi-automatic method using Landsat imagery from 2015 to 2016. The Normalized Difference Water Index threshold value was used for classification. Further, the lake boundary was revised or manually updated by incorporating those lakes that were missed because of atmospheric and physical processes such as being frozen, covered under snow, or obstructed by shadows and clouds. The mapped glacial lakes were validated and modified where necessary by overlaying the Landsat imagery over previous inventory datasets. They were also cross-checked with high-resolution Google Earth imagery. The attributes of glacial lakes were derived from SRTM DEM, and the data were projected in the WGS UTM projection system. This dataset was prepared to support the Green Climate Fund project proposal formulated by UNDP Nepal.

Glacial lakes in the Koshi, Gandaki, and Karnali river basins of Nepal, the Tibet Autonomous Region of China, and India
Schema iso19139
Purpose The dataset provides the status of glacial lakes in 2015 in three main river basins (Koshi, Gandaki, and Karnali, including Mahakali) that drain into Nepal. It is useful for researchers, scientists, and infrastructure developers, and policymakers for glacial water resource management, climate change impact studies, and glacial hazard risk reduction and mitigation.
Descriptive Keyword Glacial Lake, Potential dangerous glacial lakes, GLOF, Cryosphere (theme) Nepal, China, India (place)
Metadata Record Info
Language eng
Charset utf8
Hierarchy Level dataset
Date 2020-09-16T13:47:58
Standard Name North American Profile of ISO 19115:2003
Contact
Name Mr. Sudan Bikash Maharjan Email Sudan.Maharjan@icimod.org
Organization Name ICIMOD Voice
Position name RS Analyst - Cryosphere Address
Role author
Identification Info
Title Glacial lakes in the Koshi, Gandaki, and Karnali river basins of Nepal, the Tibet Autonomous Region of China, and India
Date 2020-09-10
Date Type publication
Abstract The data on glacial lakes in 2015 were derived through a semi-automatic method using Landsat imagery from 2015 to 2016. The Normalized Difference Water Index threshold value was used for classification. Further, the lake boundary was revised or manually updated by incorporating those lakes that were missed because of atmospheric and physical processes such as being frozen, covered under snow, or obstructed by shadows and clouds. The mapped glacial lakes were validated and modified where necessary by overlaying the Landsat imagery over previous inventory datasets. They were also cross-checked with high-resolution Google Earth imagery. The attributes of glacial lakes were derived from SRTM DEM, and the data were projected in the WGS UTM projection system. This dataset was prepared to support the Green Climate Fund project proposal formulated by UNDP Nepal.
Purpose The dataset provides the status of glacial lakes in 2015 in three main river basins (Koshi, Gandaki, and Karnali, including Mahakali) that drain into Nepal. It is useful for researchers, scientists, and infrastructure developers, and policymakers for glacial water resource management, climate change impact studies, and glacial hazard risk reduction and mitigation.
Status completed
Charset utf8
Topic Category geoscientificInformation
Spatial Representation Type vector
Cited Responsible Parties
Name Mr. Sudan Bikash Maharjan Email Sudan.Maharjan@icimod.org
Organization Name ICIMOD Voice 977-1-5275222
Position name RS Analyst - Cryosphere Address Nepal
Role author
Geographic Extent
Geographic Extent East 88.7198 Geographic Extent West 80.0726
Geographic Extent North 30.622 Geographic Extent South 27.4357
Resource Maintenance Information
Maintenance and update frequency asNeeded
User Defined Maintenance Frequency
Date of Next Update
Legal Constraints
Use Limitation Free to use with attribution to the source. Suggested citation: ICIMOD. (2020). Glacial lakes in the Koshi, Gandaki, and Karnali river basins of Nepal, the Tibet Autonomous Region of China, and India [Data set]. ICIMOD. https://doi.org/10.26066/RDS.1971946
Access Constraints copyright
Use Constraints copyright
Reference System Information
Code WGS 1984
Data Quality Info
Hierarchy level dataset
Distributor Info
Email metadata@icimod.org Organization Name ICIMOD
Voice Position name
Address Role distributor
Transfer Option
Online Resource HimalDoc