基于SIA理论的冰川储量计算  

Volume calculation of glacier based on the theory of the SIA

作　　者：曾海霄 刘雯雯 ZENG Haixiao;LIU Wenwen(Gansu Province Surveying and and Mapping Product Quality Supervision and Inspection,Lanzhou 730000,China;Lanzhou Institute of Mineral Exproration,Gansu Non-ferrous Metal Geological Exploration Bureau,Lanzhou 730000,China)

机构地区：[1]甘肃省测绘产品质量监督检验站,甘肃兰州730000 [2]甘肃省有色金属地质勘查局兰州矿产勘查院,甘肃兰州730000

出　　处：《测绘通报》2022年第4期158-161,166,共5页Bulletin of Surveying and Mapping

摘　　要：本文以抗物热冰川、古仁河口冰川、乌鲁木齐河源1号冰川和东绒布冰川为例,基于SIA理论和数字高程模型(DEM)数据及冰川矢量数据,计算各条冰川主流线的平均厚度值,并利用内插方法得到各条冰川的冰储量。结果表明:①抗物热冰川、古仁河口冰川、乌鲁木齐河源1号冰川和东绒布冰川的储量分别为0.022、0.026、0.024和1.450 km^(3)。②经与传统冰储量计算经验公式、探地雷达(GPR)实测数据计算的冰储量结果相比,基于SIA模型得到的冰储量结果均较小,这与数字高程模型数据精度及断面划分有一定相关性。In this article,as examples of the Kangwure Glacier,the Gurenhekou Glacier,the Urumqi Glacier No.1 and the East Rongbuk Glacier,average thickness value of the every glacier mainstream line calculated by the theory of the SIA,DEM data and the glacier vector data,andevery ice volume is obtained by interpolation method.The results firstly show that the volume of the Kangwure Glacier,the Gurenhekou Glacier,the Urumqi Glacier No.1 and the East Rongbuk Glacier are about 0.022、0.026、0.024 and 1.450 km^(3).Furthermore,the ice volume based on the theory of the SIA are smaller which may relate to the precision of DEM data and sections division,compared with the ice volume based on the traditional empirical equations and GPR measured data.

关 键 词：SIA理论 冰川矢量数据 冰川厚度 冰储量 冰川主流线 

分 类 号：P2O8[天文地球—测绘科学与技术]