Cryosphere Monitoring

The cryosphere is water on the earth’s surface and subsurface in its frozen state, including glaciers, snow cover, and permafrost. It’s an integral part of the global climate system. The Himalayas make up the largest cryosphere region outside the poles and are highly sensitive to climate change, but the lack of long-term data for this region undermines efforts to develop policies and programs to promote the rational and sustainable use of these water resources.

ICIMOD is involved in assessments of the Himalayan cryosphere, working to devise ways and means to bridge the information gap. The Geospatial Solution Team works with the ICIMOD Cryosphere Programme to leverage Earth Observation GIS capacities to monitor the state of the cryosphere across the HKH region, including mapping of snow cover, and snow water equivalents, and monitoring temporal changes in glaciated area and water volume.


Publications

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Datasets

Digital polygon data of Glaciers of Bhutan in 1990. This dataset is created using Landsat MSS, imageries of 1990. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


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Digital polygon data of Glaciers of Nepal in 2000. This dataset is created using Landsat MSS, TM imageries of 2000. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


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Digital polygon data of Glaciers of Bhutan in 2010. This dataset is created using Landsat TM and ETM+, imageries of 2010. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


View Metadata

Digital polygon data of Glaciers of Nepal in 2010. This dataset is created using Landsat TM, ETM+ imageries of 2010. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


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Digital polygon data of Glaciers of Nepal in 1980. This dataset is created using Landsat MSS, imageries of 1980. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


View Metadata

Digital polygon data of Glaciers of Bhutan in 2000. This dataset is created using Landsat TM and ETM+, imageries of 2000. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


View Metadata

Digital polygon data of Glaciers of Bhutan in 1980. This dataset is created using Landsat MSS imageries of 1980. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


View Metadata

Digital polygon data of Glaciers of Nepal in 1990. This dataset is created using Landsat MSS, TM imageries of 1990. The glacier outlines was derived semi-automatically using object-based image classification (OBIC ) method separately for clean ice and debris cover and further editing and validation was done carefully by draping over the high resolution images from Google Earth.


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The 500 m MODIS imagery showing a daily snow cover of the HKH region. The image is generated using MODIS (NASA) algorithms to MODIS data received on ICIMOD's receiving station.


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The 500 m MODIS imagery showing a daily snow cover of the HKH region. The image is generated using MODIS (NASA) algorithms to MODIS data received on ICIMOD's receiving station.


View Metadata

Science applications