| 基于GIS的孔隙含水层系统三维空间离散方法研究 |
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| 引用本文： | 贾锦生,陈锁忠.基于GIS的孔隙含水层系统三维空间离散方法研究[J].地质学刊,2005,29(1):5-9. |
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| 作者姓名： | 贾锦生 陈锁忠 |
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| 作者单位： | [1]中国地质大学，湖北武汉430074 [2]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： | 国家自然科学基金项目(编号: 40171075) |
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| 摘 要： | 分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基于GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基于GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。
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| 关 键 词： | 三维空间离散 不规则六面体 GIS 孔隙含水层系统 |
| 文章编号： | 1003-6474(2005)01-0005-05 |
| 修稿时间： | 2004年6月10日 |
Study of spatial three-dimensional divergent method of pore aquifer system based on GIS |
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| JIA Jin sheng,CHEN Suo zhong.Study of spatial three-dimensional divergent method of pore aquifer system based on GIS[J].Jiangsu Geology,2005,29(1):5-9. |
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| Authors: | JIA Jin sheng CHEN Suo zhong |
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| Institution: | JIA Jin sheng 1,CHEN Suo zhong 2 |
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| Abstract: | The authors state that there exist problems of spatial three dimensional dispersion of pore aquifer system in three dimensional finite difference mathematical modeling of natural pore groundwater flow.In accordance with the discontinuity of spatial distribution and heterogeneity of thickness between natural pore aquifer and waterproof stratum because of sedimentary environmental influence,using spatial analysis and automatic data collection function of GIS,the technical process of spatial three dimensional divergent realization of pore aquifer system based on GIS is studied to put forward spatial three dimensional divergent method of pore aquifer system based on GIS and irregular hexahedron.The method can ultimately ensure the singularity of aquifer type in dispersion system,increasing the simulation precision of spatial three dimensional dispersion of pore groundwater flow model and reducing the operation volume of spatial dispersion of hydrogeological model. |
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| Keywords: | Spatial three-dimensional dispersion Irregular hexahedron Geographic information system Pore aquifer system |
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