A CHARACRERISTICS MASS BALANCE OF GLACIER NO.1 AT THE HEADWATERS OF THE URUMUQI RIVER, TIANSHAN MOUNTAINS
Received date: 2004-04-22
Revised date: 2004-09-15
Online published: 2005-03-25
Based on in site continuous observations of mass balance over the Glacier No.1 in the source region of the Urumqi river, we analyzed the spatialtemporal variations of the surface mass balance series beginning from 1980 at each measurement sites on the glacier. Besides, attention has also been paid to variations in the glacier frontal position and the equilibrium line altitude and the relationship between mass balance and climatic factors. The source region of the Urumuqi river has seen a rising in air temperature and an increase in precipitation after the mid-1990s. Under such a pattern of climate change during the last decades, Glacier No.1 has been in an intensive mass wastage, amounted to 9599mm during 1959 and 2002, which corresponding to the thickness thinning over 10m on the glacier. An accelerating trend of mass losing on Glacier No.1 was observed to be -739.6 mm annually during 1987-2002. Variation in mass balance of the Glacier No.1 is primarily under control by the summer air temperatures, a good negative relation exists between the mass balance and the summer mean air temperature with the correlation coefficient of -0.72 at the 99% significance level. It was found that cold seasonal precipitations played a key role in the variation in winter balance. Affected by the accelerated mass wasting, the Glacier No.1 has experienced an obvious retreat at the terminus part since the 1980s, and this was more evident at the end of west branch of Glacier No.1 during 2000 and 2002. A statistical analysis showed that the accelerating retreat of the east branch might have close relation with the variations of specific mass balance in the area above 4200 m a.s.l. on Glacier No. 1.
HAN Tian-ding , LIU Shi-yin , JIAO Ke-qin , DING Yong-jian . A CHARACRERISTICS MASS BALANCE OF GLACIER NO.1 AT THE HEADWATERS OF THE URUMUQI RIVER, TIANSHAN MOUNTAINS[J]. Advances in Earth Science, 2005 , 20(3) : 298 -303 . DOI: 10.11867/j.issn.1001-8166.2005.03.0298
[1] Jiao Keqin, Wang Chunzu, Han Tianding. A strong negative mass balance appeared in the headwater of the Urumuqi River [J]. Journal of Glaciology and Geocryology, 2000, 22(1): 62-64. [焦克勤,王纯足,韩添丁. 天山乌鲁木齐１号冰川新近出现大的物质负平衡 [J]. 冰川冻土,2000, 22(1): 62-64.]
[2] Shi Yafeng, Shen Yongping, Hu Ruji. Preliminary study on signal, impact and foreground of climate shift from warm-dry to warm-humid in Northwest China [J]. Journal of Glaciology and Geocryology, 2002, 24(3): 220-226. [施雅风,沈永平,胡汝骥. 西北气候由暖干向暖湿转型的信号、影响和前景初步探讨 [J] 冰川冻土,2002,24(3): 220-226.]
[3] Liu Shiyin, Ding Yongjian, Ye Baisheng, et al.Regional characteristics of glacier mass balance variations in High Asia [J]. Journal of Glaciology and Geocryology, 2000, 22(2): 98-105. [刘时银,丁永建,叶柏生, 等. 高亚洲地区冰川物质平衡研究 [J]. 冰川冻土, 2000, 22(2): 98-105.]
[4] Liu Shiyin, Ding Yongjian, Wang Ninglian, et al.Mass balance sensitivity to climate change of the Glacier No.1 at the Urumqi River Head, Tianshan Mts [J]. Journal of Glaciology and Geocryology, 1998, 20(1): 9-13. [刘时银, 丁永建, 王宁练, 等. 从天山乌鲁木齐河源１号冰川物质平衡对气候变化的敏感性研究 [J]. 冰川冻土,1998,20(1):9-13.]
[5] Tianshan Glaciological Station. Annual Report of Tianshan Glaciological Station, Vol. No.1-16 [R]. Lanzhou: Lanzhou Institute of Glaciology and Geocryology, CAS, 1980-1998. [天山冰川站. 天山冰川站年报, 1~16卷 [R]. 兰州：中国科学院兰州冰川冻土研究所,1980-1998.]
[6] Liu Chaohai, Xie Zichu, Wang Chunzu. A research on mass balance processes of Glacier No.1 at the headwaters of the Urumuqi River, Tianshan Mountains [J]. Journal of Glaciology and Geocryology, 1997, 19(1): 17-24. [刘潮海, 谢自楚, 王纯足. 天山乌鲁木齐河源１号冰川物质平衡过程研究 [J]. 冰川冻土, 1997, 19(1): 17-24.]
[7] Han Tianding, Ye Baisheng, Jiao Keqin. Temperature variations in the southern and northern slopes of Mt. Tianger in the Tianshan Mountains [J]. Journal of Glaciology and Geocryology, 2002, 24(5): 567-570. [韩添丁,叶柏生,焦克勤. 天山天格尔山南北坡气温变化特征研究 [J]. 冰川冻土,2002, 24(5): 567-570.]
[8] Li Zhongqin, Han Tianding ,Jing Zhefan, et al.A summary of 40-Year observed variayion facts of climate and Glacier No.1 at the Headwater of Urumqi River Tianshan,China [J]. Journal of Glaciology and Geocryology, 2003, 25(2): 117-123. [李忠勤,韩添丁, 井哲帆, 等. 乌鲁木齐河源区气候变化和１号冰川40a观测事实 [J]. 冰川冻土,2003,25(2): 117-123.]
[9] Wang Wenying, Liu Jinghuang, Luo Xiangrui, et al.The comparing measurement of movement and retreat form 1962 to 1973 on Glacier No.1 at the Headwater of Urumqi river, Tianshan [A]. In: Memoirs of Lanzhou Institute of Glaciology, Geocryology and Desert, CAS, No.1 [C]. Beijing: Science Press, 1976.32-35. [王文颖,刘景璜,罗祥瑞,等. 1962-1973年天山乌鲁木齐河一号冰川的退缩和运动的对比测量 [A].见：中国科学院兰州冰川冻土沙漠研究所集刊,第一号 [C].北京：科学出版社,1976.32-35.]
[10] Sun Zuozhe, Chen Yaowu, You Genxiang , et al.Flow characteristics of Glacier No.1 at the headwater of Urumqi River, Tianshan [J]. Journal of Glaciology and Geocryology, 1985, 7(1):27-40. [孙作哲,陈要武,尤根祥,等. 天山乌鲁木齐河源1号冰川的运动特征 [J]. 冰川冻土,1985,7(1)：27-40.]
[11] Liu Shiyin, Wang Ninglian, Ding Yongjian, et al.On the characteristics of glacier fluctuations during the last 30 years in Urumqi river basin and the estimation of temperature rise in the high mountain area [J]. Advances in Earth Science, 1999, 14(3):279-285. [刘时银,王宁练,丁永建,等. 近30年来乌鲁木齐河流域冰川波动特征与流域高山带升温幅度的估算 [J]. 地球科学进展, 1999, 14(3):279-285.]
[12] Su Zhen, Liu Zongxiang,Wang Wenti, et al.Glacier fluctuations responding to climate change and forecast of its tendency over the Qinghai-Tibet Plateau [J]. Advances in Earth Sciences, 1999, 14(6):607-612. [苏珍,刘宗香,王文悌,等. 青藏高原冰川对气候变化的响应及趋势预测 [J]. 地球科学进展, 1999, 14(6):607-612.]
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