Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface

BAI Jianjun; ZHAO Xuesheng; CHEN Jun

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Volume 30 Issue 5

May 2005

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Article Navigation > Geomatics and Information Science of Wuhan University > 2005 > 30(5): 383-387

BAI Jianjun, ZHAO Xuesheng, CHEN Jun. Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface[J]. Geomatics and Information Science of Wuhan University, 2005, 30(5): 383-387.

Citation:

BAI Jianjun, ZHAO Xuesheng, CHEN Jun. Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface[J]. Geomatics and Information Science of Wuhan University, 2005, 30(5): 383-387.

Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface

¹ School of Resource, China University of Mining and Technology (Beijing , D11 Xueyuan Road, Haidian District, Beijing 100083,China ² National Geomatics Center of China, 1 Baishengcun, Zizhuyuan, Beijing 100044, China

Funds: 国家杰出青年科学基金资助项目(40025101)

Received Date: 2005-03-11
Rev Recd Date: 2005-03-11
Publish Date: 2005-05-05

Abstract

In order to overcome the crack,imprecision of geographic analysis and data redundancy caused by the traditional digital elevation model in modeling the large scale terrain, this paper presents a method of global digital elevation modeling based on hierarchical subdivision of the quaternary triangular mesh on ellipsoidal surface. This method not only eliminates the gap and imprecision of geographic analysis caused by map projection, but also reduce the data redundancy. The authors has used the global GTOPO30 data to prove the reliability of the proposed method.
- ellipsoidal surface,
- quaternary triangular mesh,
- hierarchical subdivision,
- digital elevation model
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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