A Global "Natural" Grid Model Based on the Morse Complex

6th Digital Earth Summit

地球科学;计算机科学

Wang, Hongbin^1 ; Zhao, Xuesheng^2 ; Zhu, Xinying^3 ; Li, Jiebiao^1

Beijing Research Institute of Uranium Geology, Beijing, China^1

Geoscience and Surveying Engineering College, China University of Mining and Technology (Beijing), Beijing, China^2

Esri China Information Technology Co. Ltd., Beijing, China^3

关键词: Climatic analysis;    Discrete global grids;    Environmental Monitoring;    Hydrological analysis;    Model-based OPC;    Natural phenomena;    Surveying technologies;    Terrain features;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/46/1/012021/pdf
DOI  :  10.1088/1755-1315/46/1/012021

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

In the exploration and interpretation of the extensive or global natural phenomena such as environmental monitoring, climatic analysis, hydrological analysis, meteorological service, simulation of sea level rise, etc., knowledge about the shape properties of the earth surface and terrain features is urgently needed. However, traditional discrete global grids (DGG) can not directly provide it and are confronted with the challenge of the rapid data volume growth as the modern earth surveying technology develops. In this paper, a global «natural»grid (GNG) model based on the Morse complex is proposed and a relatively comprehensive and theoretical comparison with the traditional DGG models is analyzed in details as well as some issues to be resolved in the future. Finally, the experimental and analysis results indicate that this distinct GNG model built from DGG is more significant to the advance of the geospatial data acquisition technology and to the interpretation of those extensive or global natural phenomena.