| GPS相对测量技术在水土保持中的应用 |
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| 引用本文： | 焦锋,张晓萍,李锐,李壁成. GPS相对测量技术在水土保持中的应用[J]. 水土保持通报, 1998, 18(5): 32-34 |
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| 作者姓名： | 焦锋 张晓萍 李锐 李壁成 |
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| 作者单位： | 中国科学院水利部水土保持研究所,陕西杨陵,712100 |
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| 基金项目： | 中国科学院资源与生态环境研究项目，中-欧合作项目，KZ952-S1-234，，， |
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| 摘 要： | 介绍了相对定位方法，软硬件及仪器设备，结合在陕北安塞县大南沟的袖主测量结果分析，详细讨论了ＧＰＳ定位技术在黄土丘陵沟壑区小流域水土流失监测的独特优越性，并对实测中ＧＰＳ在定时一时所暴露出的问题的及其原因进行了初步探讨。测量结果分析表明；ＧＰ相对定位测量坡面定位精度可达毫米级。但在沟谷内等地形狭窄的地方，信号较弱，卫星失锁现象严重，ＧＰＳ定位精度较差，其应用受到限制。
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| 关 键 词： | GPS 相对定位 黄土高原 水土保持 测量技术 |
| 收稿时间： | 1998-04-13 |
| 修稿时间： | 1998-04-13 |
Application of GPS in Soil and Water Conservation |
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| Jiao Feng,Zhang Xiaoping,Li Rui and Li Bicheng. Application of GPS in Soil and Water Conservation[J]. Bulletin of Soil and Water Conservation, 1998, 18(5): 32-34 |
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| Authors: | Jiao Feng Zhang Xiaoping Li Rui Li Bicheng |
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| Affiliation: | Institute of Soil and Water Conservation,the Chinese Academy of Sciences and Minstry of Water Resources,Yangling District,Shaanxi Province,712100,PRC;Institute of Soil and Water Conservation,the Chinese Academy of Sciences and Minstry of Water Resources,Yangling District,Shaanxi Province,712100,PRC;Institute of Soil and Water Conservation,the Chinese Academy of Sciences and Minstry of Water Resources,Yangling District,Shaanxi Province,712100,PRC;Institute of Soil and Water Conservation,the Chinese Academy of Sciences and Minstry of Water Resources,Yangling District,Shaanxi Province,712100,PRC |
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| Abstract: | The methods of relative positioning,software and instruments etc.on GPS were briefly introduced, and the advantages and disadvantages on GPS position in the loess hilly area were discussed in detail on the basis of the field experiences on GPS position and an analyses on survey data in Ansai county,Shaanxi province of China.The results show that the survey precision of GPS is as high as 0.1mm on the hillslope,and is poor in the gully because of the sudden negative landform there. |
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| Keywords: | GPS relative positioning loess hil ly areas soil and water conservation |
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