NASA’s repeat-track Ice, Cloud, and Land Elevation Satellite (ICEsat) uses laser altimeter data to measure height changes at a high resolution. ICEsat satellite observations of subglacial lakes have shown that the ice surface above subglacial lakes is constantly changing, suggesting that water is flowing between lakes.

More information about this at:

http://www.antarcticglaciers.org/glacier-processes/glacial-lakes/subglacial-lakes/

@John Hatzopoulos: Thank you for your answer. I will definitely look into the website..! Whereas I have one doubt as well if a study area small and if the ICEsat satellite tracks do not pass through the study area then how would we demarcate the subglacial lakes in the region?

Thank you and best regards,

Arindam

Nasir Hameed Thank you so much for this paper. I will go through it.

Simply use NDWI or apply different false color composite of satellite imagesto identify sub glacial lake.

Sher Bahadur Gurung In my opinion a subglacial lake is found under or beneath a glacier surface. Then, how could an automated algorithm such as NDWI or simply applying false colour composite from satellite images will help to delineate a subglacial lake? I am really afraid.

Dear Arindam, overlay NDWI and FCC with DEM which may support to identify sub glacier lake.

yes, high-resolution satellite temporal images with visual interpretation along with image enhancement techniques can help to delineate subglacial lakes.

use image enhancement technique for the high resolution satellite images to delineate subglacial lakes.

impossible with visible light remote sensing technology, but might accessible through ground penetrating radar or gravity detection techniques.

@Rayees Ahmed: Thank you, but I am talking about subglacial lakes which appear below the glacier surface.