Accelerated thinning of Hei Valley No. 8 Glacier in the Tianshan Mountains, China
作者： Zhen Wu , Shiyin Liu , Shiqiang Zhang , Donghui Shangguan
DOI: 10.1007/S12583-013-0382-6
关键词: Glacier terminus 、 Glacial period 、 Geology 、 Thinning 、 Glacier mass balance 、 Geomorphology 、 Glacier 、 Ground-penetrating radar 、 Shuttle Radar Topography Mission 、 Digital elevation model 、 General Earth and Planetary Sciences
摘要: Two field surveys on the thickness of Hei Valley No. 8 Glacier (H8) southern slope Mount Bogda in Tianshan (天山) Mountains using ground-penetration radar (GPR) were carried out August 2008 and September 2009. Comparisons observed change glacier GPR ablation stakes suggest that observations have high accuracy. Thus, for H8 during 2008–2009 was estimated data. Digital elevation models obtained from topographic maps Shuttle Radar Topography Mission used to analyze ice-elevation changes between 1 969 2 000 m a.s.l.. The results show has continually thinned, thinning rate increased gradually. areas 0.42±0.56 m/a 1969–2000 1.47±0.79 2000–2008, then accelerated 1.92±0.98 2008–2009. retreat terminus had a similar pattern. distribution temperate-ice zone as determined data also implies experienced strong melting 2009, which indicates temperature rises not only enhanced glacial surface prolonged periods, but changed englacial structure water content glacier, both probably lead acceleration thinning.
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J. L. Bamber, INTERNAL REFLECTING HORIZONS IN SPITSBERGEN GLACIERS Annals of Glaciology. ,vol. 9, pp. 5- 10 ,(1987) , 10.1017/S0260305500000306
G. K. C. Clarke, R. H. Goodman, Radio Echo Soundings and Ice-Temperature Measurements in a Surge-Type Glacier Journal of Glaciology. ,vol. 14, pp. 71- 78 ,(1975) , 10.1017/S002214300001340X
Puyu Wang, Zhongqin Li, Huilin Li, Wenbin Wang, Feiteng Wang, Ice surface-elevation change and velocity of Qingbingtan glacier No.72 in the Tomor region, Tianshan Mountains, central Asia Journal of Mountain Science. ,vol. 8, pp. 855- 864 ,(2011) , 10.1007/S11629-011-1018-X
V.M. Kotlyakov, Yu, Ya. Macheret, Radio Echo-Sounding of Sub-Polar Glaciers in Svalbard: Some Problems and Results of Soviet Studies Annals of Glaciology. ,vol. 9, pp. 151- 159 ,(1987) , 10.1017/S0260305500000537
Liu Shiyin, Sun Wenxin, Shen Yongping, Li Gang, Glacier changes since the Little Ice Age maximum in the western Qilian Shan, northwest China, and consequences of glacier runoff for water supply Journal of Glaciology. ,vol. 49, pp. 117- 124 ,(2003) , 10.3189/172756503781830926
Yu. Ya. Macheret, M. Yu. Moskalevsky, E.V. Vasilenko, Velocity of radio waves in glaciers as an indicator of their hydrothermal state, structure and regime Journal of Glaciology. ,vol. 39, pp. 373- 384 ,(1993) , 10.1017/S0022143000016038
Helgi Björnsson, Yngvar Gjessing, Svein-Erik Hamran, Jon Ove Hagen, Olav LiestøL, Finnur Pálsson, Björn Erlingsson, The thermal regime of sub-polar glaciers mapped by multi-frequency radio-echo sounding Journal of Glaciology. ,vol. 42, pp. 23- 32 ,(1996) , 10.1017/S0022143000030495
JC Moore, A Pälli, F Ludwig, H Blatter, J Jania, B Gadek, P Glowacki, D Mochnacki, E Isaksson, None, High-resolution hydrothermal structure of Hansbreen, Spitsbergen, mapped by ground-penetrating radar Journal of Glaciology. ,vol. 45, pp. 524- 532 ,(1999) , 10.1017/S0022143000001386
W Haeberli, Glacier mass balance Haeberli, W (2011). Glacier mass balance. In: Singh, V P; Singh, P; Haritashya, U K. Encyclopedia of snow, ice and glaciers. Dordrecht: Springer, 399-408.. ,(2011) , 10.5167/UZH-50688
B.C. Welch, W.T. Pfeffer, J.T. Harper, N.F. Humphrey, Mapping subglacial surfaces of temperate valley glaciers by two-pass migration of a radio-echo sounding survey Journal of Glaciology. ,vol. 44, pp. 164- 170 ,(1998) , 10.1017/S0022143000002458