东昆仑山煤矿冰川雷达测厚及冰储量估算

doi:10.7522/j.issn.1000-0240.2017.0320

冰川冻土 ›› 2018, Vol. 40 ›› Issue (1): 38-46.doi: 10.7522/j.issn.1000-0240.2017.0320

东昆仑山煤矿冰川雷达测厚及冰储量估算

李亚楠^1,2, 李真¹, 王宁练³

1. 中国科学院西北生态环境资源研究院冰冻圈科学国家重点实验室, 甘肃兰州 730000;
2. 中国科学院大学, 北京 100049;
3. 西北大学城市与环境学院, 陕西西安 710127

收稿日期:2017-08-29 修回日期:2017-11-12 出版日期:2018-02-25 发布日期:2018-04-13
通讯作者: 李真,E-mail:lizhen@lzb.ac.cn E-mail:lizhen@lzb.ac.cn
作者简介:李亚楠(1993-),女,安徽亳州人,2015年在安徽师范大学获学士学位,现为中国科学院西北生态环境资源研究院在读硕士研究生,从事冰川冰储量变化及其对气候的响应机理研究.E-mail:yananli@lzb.ac.cn
基金资助:
中国西部主要冰川作用中心冰量变化调查项目（2013FY111400）；国家自然科学基金项目（41190084；41501069）；冰冻圈科学国家重点实验室开放基金项目（SKLCS-OP-2017-10）资助

Ice thickness sounded by ground penetrating radar on the Meikuang Glacier in the Eastern Kunlun Mountains

LI Yanan^1,2, LI Zhen¹, WANG Ninglian³

1. State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Urban and Environmental Science, Northwest University, Xi'an 710075, China

Received:2017-08-29 Revised:2017-11-12 Online:2018-02-25 Published:2018-04-13

摘要/Abstract

摘要： 基于2015年5月东昆仑山煤矿冰川冰厚测量资料，结合2015年Landsat8 OLI影像，利用Ordinary Kriging插值方法对冰川非测厚区进行插值计算，绘制了该冰川厚度等值线并对该冰川冰储量进行了估算。2015年煤矿冰川最大厚度为87 m，位于海拔4 952 m主流线附近，平均厚度为25.77 m，冰储量为0.0242 km³。利用煤矿冰川冰面地形图与冰厚度分布图，获得该冰川冰床地形图。结果显示，冰川上宽下窄沿山谷分布，冰床地形复杂，在冰厚较大区域，地形呈近“V”字分布，显示了冰斗冰川的形貌特征。

关键词: 探地雷达(GPR), 煤矿冰川, 东昆仑山, 冰川厚度, 冰储量

Abstract: Glacier is an important surface water resources in Northwest China. However, due to lack of measured glacier ice thickness data, the ice reserve estimation of glacier has varying degree of indeterminacy. In May of 2015, ice thickness of the Meikuang Glacier on the Eastern Kunlun Mountains was sounded by a pulse EKKO PRO Ground Penetrating Radar system (with a 100 MHz antenna), with five short transversal profiles and one long longitudinal profile. Based on the GPR data, GPS position of the sounding point, SRTM DEM data (30 meters) and Landsat8 OLI image in 2015, the Meikuang Glacier was seperated a sounded area from the whole glacier field. Ice thickness contour map was drawn by Ordinary Kriging method and ice reserve was calculated by integration of thickness and boundary distribution data under the support of GIS technology. The sounding showed that the maximum thickness was 87 meters at 4 952 meters elevation, near to the main flow line. It was found that in 2015 the glacierized area, average thickness and total ice reserve of the glacier was 0.95 km², 25.77 meters and 0.0242 km³, respectively. Based on raster map of the glacier surface and ice thickness, the topography of glacier bed was obtained. The results show that the glacier is wide in the upper part and narrow along the valley, and the glacier bed is complex. In the area with larger thickness, the topography has near V-shape, showing the morphological characteristics of cirque glacier.

Key words: ground penetrating radar (GPR), Meikuang Glacier, Eastern Kunlun Mountains, ice thickness, ice volume

中图分类号:

P343.6

李亚楠, 李真, 王宁练. 东昆仑山煤矿冰川雷达测厚及冰储量估算[J]. 冰川冻土, 2018, 40(1): 38-46.

LI Yanan, LI Zhen, WANG Ninglian. Ice thickness sounded by ground penetrating radar on the Meikuang Glacier in the Eastern Kunlun Mountains[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2018, 40(1): 38-46.

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东昆仑山煤矿冰川雷达测厚及冰储量估算

Ice thickness sounded by ground penetrating radar on the Meikuang Glacier in the Eastern Kunlun Mountains

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