Reconstruction of specific mass balance for glaciers in Western Himalaya using seasonal sensitivity characteristic(s)

Gaddam, Vinay Kumar and Kulkarni, Anil V and Gupta, Anil Kumar (2017) Reconstruction of specific mass balance for glaciers in Western Himalaya using seasonal sensitivity characteristic(s). In: JOURNAL OF EARTH SYSTEM SCIENCE, 126 (4).

PDF Jou_Ear_Sys_Sci_126-4_2017.pdf - Published Version Download (1MB)

Abstract

Seasonal sensitivity characteristics (SSCs) were developed for Naradu, Shaune Garang, Gor Garang and Gara glaciers, Western Himalaya to quantify the changes in mean specific mass balance using monthly temperature and precipitation perturbations. The temperature sensitivities were observed high during summer (April-October) and precipitation sensitivities during winter months (November-March), respectively. The reconstructed mass balance correlates well with the field and remote sensing measurements, available between 1980 and 2014. Further, SSCs were used with the monthly mean temperatures and precipitation estimates of ERA 20CM ensemble climate reanalysis datasets to reconstruct the specific mass balance for a period of 110 years, between 1900 and 2010. Mass balance estimates suggest that the Shaune Garang, Gor-Garang and Gara glaciers have experienced both positive and negative mass balance, whereas the Naradu glacier has experienced only negative mass balance since 1900 AD. Further, a cumulative loss of -133 +/- 21.5 m.w.e was estimated for four glaciers during the observation period. This study is the first record from Indian Himalaya in evaluating the mass balance characteristics over a century scale.

Item Type:	Journal Article
Publication:	JOURNAL OF EARTH SYSTEM SCIENCE
Additional Information:	Copy right for this article belongs to the INDIAN ACAD SCIENCES, C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
Department/Centre:	Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited:	29 Jul 2017 10:16
Last Modified:	29 Jul 2017 10:16
URI:	http://eprints.iisc.ac.in/id/eprint/57520

Actions (login required)

View Item