Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images

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This paper discusses research on the spatial and temporal variation of the Gangotri Glacier, one of the largest glaciers in the Himalayas. The authors discuss how this influences the River Ganges and, consequently, the people of the Indian subcontinent.

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11 p.

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Ding, Jennifer & Dong, Pinliang April 1, 2010.

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This paper is part of the collection entitled: UNT Undergraduate Student Works and was provided by the UNT Honors College to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 1530 times. More information about this paper can be viewed below.

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  • Main Title: Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images
  • Series Title: University Scholars Day

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Description

This paper discusses research on the spatial and temporal variation of the Gangotri Glacier, one of the largest glaciers in the Himalayas. The authors discuss how this influences the River Ganges and, consequently, the people of the Indian subcontinent.

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11 p.

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Abstract: Glacier retreat has received increased attention as a sensitive indicator of global warming. Based on medium-resolution Landsat Thematic Mapper (TM) images acquired between 1990 and 2009, high-resolution GeoEye IKONOS images acquired in 2005, and a digital elevation model (DEM) provided by NASA's Shuttle Radar Topographic Mission (SRTM) carried out by the space shuttle Endeavour in 2000, this study focuses on the spatial and temporal variation of the moraine-covered Gangotri Glacier - one of the largest glaciers in the Himalayas. Image calibration was carried out to convert Landsat TM digital numbers (DN) into radiance and reflectance for better comparison between images acquired on different dates. Reflectance spectral curves were derived from both glacial and non-glacial features for more accurate image interpretation. IKONOS images were used to accurate mapping of glacier terrain features. SRTM DEM was used to determine glacial flow directions and aid in image interpretation. Multi-temporal analyses of Landsat TM images acquired in 1990, 2001, and 2009 show that the Gangotri Glacier retreated 345 meters from 1990 to 2009, with a retreating rate of approximately 18 meters per year. The results also show that there are no obvious changes in glacial retreating rates during 1990-2001 and 2001-2009. However, the River Ganges may potentially become a seasonal river as a result of continued glacier retreating, affecting hundreds of millions of people on the Indian subcontinent.

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  • Seventh Annual University Scholars Day, 2010, Denton, Texas, United States

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  • Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images, ark:/67531/metadc9324
  • Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images - ark:/67531/metadc93248

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UNT Undergraduate Student Works

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Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images, ark:/67531/metadc9324

Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images (Presentation)

Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images

Presentation for the 2010 University Scholars Day at the University of North Texas discussing retreating glaciers of the Himalayas and a case study of the Gangotri Glacier using 1990-2009 satellite images.

Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images - ark:/67531/metadc93248

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  • April 1, 2010

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  • May 18, 2012, 10:45 a.m.

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  • March 11, 2020, 10:06 a.m.

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Ding, Jennifer & Dong, Pinliang. Retreating Glaciers of the Himalayas: A Case Study of Gangotri Glacier Using 1990-2009 Satellite Images, paper, April 1, 2010; (https://digital.library.unt.edu/ark:/67531/metadc84326/: accessed December 5, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Honors College.

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