survey the terrain

After then, we present a practical archaeological exploration case of 2D terrain correction in CSAMT survey by choosing the useful correct method.

然后，在上述正演模拟和对比研究基础上，筛选出适当的校正方法技术对秦皇陵考古野外CSAMT实测资料进行了地形影响校正应用研究。

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The paper simply introduces the method and successful example of surface wave exploration, which is applied to survey slow velocity belt and stratum structure in desert where terrain and geological condition are complicated.

介绍了在新疆准噶尔沙漠地区应用面波勘探进行地层地质结构调查的技术方法及其成功实例。

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On the basis of geographic accuracy in survey of the terrain and need for application of map, the paper analyses and discusses synthetic choose of the terrain, and discusses the relation of integrative accuracy and part accuracy.

从地形图的地理精度及用图的需要对地形的综合取舍进行了分析与探讨，同时也讨论了地形图的整体精度与局部精度的关系问题。

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Through 1999 under water terrain obtained by remote sensing and 2002 water depth data obtained by local survey, this paper analysis the riverway erosion and deposition and the sand body movement of the south branch of Yangtze estuary.

以长江口南支为研究区，对通过遥感影像反演出的1999年水下地形和该河段2002年实测水深，进行河道冲淤变化和沙体迁移分析。

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As an important basis of modernization of railway route design, if the digital terrain model can not be very well applied in practical engineering, CAD in railway route is difficultly broken through, and the technologies of route survey and design are also hard to be improved.

数字地面模型作为线路设计现代化的重要基础，如果不能很好地应用于实际工程，那么线路CAD技术也难以有新的突破，线路勘测设计技术也难以提高。

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The battle terrain survey system ( BTSS) is a kind of military geographic information system. The research and realization on the basic GIS' data management system are need to provide a kind of all rights served spatial database management support to BTSS.

野战地形测绘保障系统（battle terrain survey system，简称BTSS）是一种军事地理信息系统，开发基础GIS数据管理系统的目的就是为BTSS提供独立自主的空间数据库支持。

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How to improve the accuracy of terrain correction in mountain-ous-district gravity survey is an important subject which people have paid close attention to.

在山区重力勘探中，如何提高地形改正的精度，一直是一个引人关注的重要课题。

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