Recession of Milam Glacier, Kumaun Himalaya, Observed via Lichenometric Dating of Moraines

Glaciers being very sensitive to climate change have been identified as one of the best indicators of climate change and evidences have proved that most of the Himalayan glaciers have receded with an increased rate during the recent past under the influence of global warming. Lichenometric study was...

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Bibliographic Details
Published in:Journal of the Geological Society of India 2018-08, Vol.92 (2), p.173-176
Main Authors: Bisht, Kapil, Joshi, Yogesh, Upadhyay, Shashi, Metha, Poonam
Format: Article
Language:English
Subjects:
Chronology
Climate change
Dating
Earth and Environmental Science
Earth Sciences
Geology
Glaciers
Global warming
Growth rate
Hydrogeology
Moraines
Recession
Remote sensing
Satellites
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Summary:Glaciers being very sensitive to climate change have been identified as one of the best indicators of climate change and evidences have proved that most of the Himalayan glaciers have receded with an increased rate during the recent past under the influence of global warming. Lichenometric study was carried out on the moraines of Milam glacier (located in Pithoragarh district of Uttarakhand) with the help of lichen species Dimelaena oreina having an average annual growth rate of 1.31 mm. The study revealed that Milam glacier has receded 1450 m in last 69.37 years with an average recession rate of 20.90 m/year. Since lichenometric studies are cost effective and ecofriendly in comparison to carbon dating, satellite and remote sensing based studies and also reliable, hence, it should be promoted in Himalaya which is an abode of glaciers.
ISSN:0016-7622
0974-6889
DOI:10.1007/s12594-018-0977-8