Articles | Volume 13, issue 10
https://doi.org/10.5194/tc-13-2733-2019
https://doi.org/10.5194/tc-13-2733-2019
Research article
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18 Oct 2019
Research article | Highlight paper |  | 18 Oct 2019

Contrasting thinning patterns between lake- and land-terminating glaciers in the Bhutanese Himalaya

Shun Tsutaki, Koji Fujita, Takayuki Nuimura, Akiko Sakai, Shin Sugiyama, Jiro Komori, and Phuntsho Tshering

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Cited articles

Ageta, Y., Iwata, S., Yabuki, H., Naito, N., Sakai, A., Narama, C., and Karma: Expansion of glacier lakes in recent decades in the Bhutan Himalayas, IAHS Publ., 264, 165–175, 2000. a, b, c
Azam, M. F., Wagnon, P., Berthier, E., Vincent, C., Fujita, K., and Kargel, J. S.: Review of the status and mass changes of Himalayan-Karakoram glaciers, J. Glaciol., 64, 61–74, https://doi.org/10.1017/jog.2017.86, 2018. a
Bajracharya, S. R., Maharjan, S. B., and Shrestha, F.: The status and decadal change of glaciers in Bhutan from the 1980s to 2010 based on satellite data, Ann. Glaciol., 55, 159–166, https://doi.org/10.3189/2014AoG66A125, 2014. a, b, c
Benn, D., Hulton, N. R. J., and Mottram, R. H.: 'Calving lows', 'sliding laws', and the stability of tidewater glaciers, Ann. Glaciol., 46, 123–130, https://doi.org/10.3189/172756407782871161, 2007a. a
Benn, D., Warren, C., and Mottram, R.: Calving processes and the dynamics of calving glaciers, Earth-Sci. Rev., 82, 143–179, https://doi.org/10.1016/j.earscirev.2007.02.002, 2007b. a
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We investigate thickness change of Bhutanese glaciers during 2004–2011 using repeat GPS surveys and satellite-based observations. The thinning rate of Lugge Glacier (LG) is > 3 times that of Thorthormi Glacier (TG). Numerical simulations of ice dynamics and surface mass balance (SMB) demonstrate that the rapid thinning of LG is driven by both negative SMB and dynamic thinning, while the thinning of TG is minimised by a longitudinally compressive flow regime.