| 基于GIS的孔隙水文地质层三维空间离散方法 |
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| 引用本文： | 陈锁忠,黄家柱,张金善.基于GIS的孔隙水文地质层三维空间离散方法[J].水科学进展,2004,15(5):634-639. |
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| 作者姓名： | 陈锁忠 黄家柱 张金善 |
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| 作者单位： | 1.南京师范大学地理信息科学江苏省重点实验室, 江苏, 南京, 210097; |
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| 基金项目： | 国家自然科学基金资助项目(40171075)，国土资源部资助项目(029932047Z2 1 2)~~ |
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| 摘 要： | 针对自然界中孔隙水文地质层空间分布的不连续性与厚度分布的不均匀性,研究基于GIS的孔隙水文地质层三维空间离散实现的技术路线,提出基于GIS的孔隙水文地质层不规则六面体元的三维空间离散方法.该法不仅能最大限度地保证不规则六面体元中水文地质层类型的一元性,而且可充分利用GIS的空间分析与数据的自动提取功能,快速提取各个计算结点上空间位置坐标与各类计算参数,大大缩短水文地质模型空间离散与相关数据文件组织所需的时间,提高地下水三维有限差分数值模拟的时效性,具有较高的实用价值.
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| 关 键 词： | 三维空间离散 孔隙水文地质层 地理信息系统 |
| 文章编号： | 1001-6791(2004)05-0634-06 |
| 收稿时间： | 2003-07-16 |
| 修稿时间： | 2003年7月16日 |
3D spatial dispersing method for interstitial geohydrology succession based on GIS |
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| CHEN Suo-zhong,HUANG Jia-zhu,ZHANG Jin-shan al University,Nanjing ,China, .Nanjing Hydraulic Research Institute,Nanjing ,China.3D spatial dispersing method for interstitial geohydrology succession based on GIS[J].Advances in Water Science,2004,15(5):634-639. |
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| Authors: | CHEN Suo-zhong HUANG Jia-zhu ZHANG Jin-shan al University Nanjing China Nanjing Hydraulic Research Institute Nanjing China |
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| Affiliation: | 1.Jiangsu Provincial Key Lab. of Geographic Information Science, Nanjing Normal University, Nanjing 210097, China;2.Nanjing Hydraulic Research Institute, Nanjing 210024, China |
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| Abstract: | This paper aims at obtaining the furthest assurance of the unitary of interstitial geohydrology succession(IGS) types in discrete voxels, improving on the defect of multi-types of current simulating discrete voxels, and consequently, enhancing the operability of parameter evaluation and the precision of simulated result in the stimulating process of groundwater current 3D finite-difference. Considering spatial discontinuity and thickness asymmetry of IGS in the nature, this paper studies IGS 3D spatial discrete techno-course based on geographic information system (GIS) and put forward the implementary method with IGS anomalous hexa-voxels. It can not only keep the type unitary of IGS anomalous hexa-voxels to the utmost extent, but also make full use of GIS spatial analysis and data auto-extraction functions, extract rapidly the spatial coordination of all calculating labels and all kinds calculating parameters, therefore, greatly shorten the time need in geohydrology model spatial dispersion and relative data file management, and increase the simulating effectiveness for a given period of the groundwater 3D finite-difference. |
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| Keywords: | 3D spatial dispersing interstitial geohydrology succession geographic information system |
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