Acquisition of Differential GPS System for Use in Geologic Field Mapping

获取用于地质领域测绘的差分 GPS 系统

• 批准号: 9904298
• 负责人: John Grotzinger
• 金额: $ 4.69万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-15 至 2002-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9904298&HistoricalAwards=false
• 关键词: Acquisition; Differential; GPS; System; Use

9904298GrotzingerThis grant provides partial support of the costs of acquiring a digital data acquisition system for use in geologic mapping. The PI, John Grotzinger, has a broad program in geologic field mapping, with emphasis on sedimentary and structural geology. Use of the digital data acquisition system will significantly increase the capability of this group in three directions. In the first case, the data is obtained directly in the field in digital format for easy input into graphics workstations for data display and analysis. In the second case, data acquisition may be greatly accelerated through the implementation of outcrop-scale remote sensing capabilities. In the third case, digital data collection will allow definition and quantification of uncertainties in field measurements.Equipment to be acquired includes a differential GPS system (Leica 9500), with two rovers and reflectorless laser range finders (Vector GIS), a conventional total station with reflectorless range finders for detailed mapping of small-scale geologic features (Leica TM1800), and two portable pen-based computers and software for data storage and real-time viewing. Position measurements from the Vector GIS laser range finder can be directly applied as offsets to measurements taken by the GPS receiver in real time. This will allow rapid mapping, with a minimum number of equipment and data set merging problems. This equipment will find immediate use for mapping along the steep slopes and cliff faces that flank the network of canyons in highly dissected terrains. By mapping the steep slopes in multiple canyons, serial sections can be obtained through volumes of sedimentary rock. These can be rendered in three dimensions and then interpolated between data points to provide state-of-the-art depictions of stratigraphic relationships in three dimensions. Once in the workstation environment, the length scales of architectural elements, and the volumes of rock defined by facies boundaries or other stratal boundaries can be immediately quantified.***

9904298Grotzingerthisthis Grant提供了获取用于地质映射的数字数据采集系统的成本的部分支持。 PI，John Grotzinger在地质领域映射方面有一个广泛的计划，重点是沉积和结构地质学。 数字数据采集系统的使用将大大提高该组在三个方向上的能力。 在第一种情况下，数据是直接在字段中以数字格式获得的，以方便输入图形工作站以进行数据显示和分析。 在第二种情况下，通过实施露头级遥感功能，数据采集可能会大大加速。 在第三种情况下，数字数据收集将允许对现场测量中的不确定性进行定义和量化。设备的设备包括一个差异GPS系统（Leica 9500），其中有两个流浪者和无反射激光范围查找器（Vector GIS）（Vector GIS）（Vector GIS），带有常规的无反射范围的无反射范围的计算机和两个小尺度的端口绘图器（leica trecale dialicic and liica totary and liica tim1800 tim1800）（实时查看。 从矢量GIS激光范围查找器的位置测量器可以直接应用于GPS接收器实时进行的测量值。 这将允许快速映射，设备和数据集合并问题的数量最少。 该设备将立即使用沿陡峭的斜坡和悬崖面绘制，这些坡度和悬崖面在高度剖析的地形上的峡谷网络。 通过在多个峡谷中绘制陡峭的斜率，可以通过沉积岩的体积获得串行部分。 这些可以在三个维度上渲染，然后在数据点之间插值，以在三个维度上提供对地层关系的最新描述。 一旦进入工作站环境，就可以立即量化建筑要素的长度尺度以及相边界或其他地层边界所定义的岩石量。***