| 基于MapGIS的地质图数字化误差来源和对策 |
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| 引用本文： | 方杰,徐芬,何虎军,李煜航,魏翔.基于MapGIS的地质图数字化误差来源和对策[J].地下水,2009,31(2):120-121. |
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| 作者姓名： | 方杰 徐芬 何虎军 李煜航 魏翔 |
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| 作者单位： | 1. 长安大学地球科学与资源学院,陕西,西安,710054
2. 中国地质大学,武汉,环境学院,湖北,武汉,430074 |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 误差的减小要从数字化的各个环节入手,从数字化的一开始就要控制,重点是减少源误差和避免误差的传播.结合具体实例,利用数字化流程对各个环节进行分析,查出了主要的4个误差来源,并提出数字化前误差减少与数字化中误差减少的具体方法.
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| 关 键 词： | 地质图 误差分析 误差校正 |
Digital Error Sources of Geological Map Based on MapGIS and its Countermeasures |
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| FANG Jie,XU Fen,HE Hu-jun,LI Yu-hang,Wei Xiang.Digital Error Sources of Geological Map Based on MapGIS and its Countermeasures[J].Groundwater,2009,31(2):120-121. |
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| Authors: | FANG Jie XU Fen HE Hu-jun LI Yu-hang Wei Xiang |
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| Institution: | 1.School of Earth Science and Resources;Chang'an University;Xi'an 710054;China;2.School of Environmental Studies;China University of Geosciences;Wuhan 430074;China |
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| Abstract: | Reducing of errors starts with the various segments of the digital,it is necessary to control from the very beginning of the digital,with a focus on reducing sources of error and avoiding the spread of error.Analyzing of all aspects using digital processes with specific examples,this paper identifies the four main sources of error,proposes relevant countermeasures and makes a good practice effects. |
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| Keywords: | Digital MapGIS6 7 Error Analysis and Error correction |
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