Remote sensing and precision mapping technologies are being used to develop solutions for clients with complex planning, 选址, 允许挑战. New remote sensor technologies from airborne and mobile platforms enable more efficient and accurate data collection compared to traditional survey methods. Tetra Tech’s in-house remote sensing and geomatics team works closely with our scientists, 规划者, and engineers to meet project specifications in more efficient and technologically advanced ways.
传感器技术和可视化平台的好处
The introduction of high-resolution digital cameras and 3D scanning has revolutionized the field of surveying by enabling data to be collected quickly and precisely, 推动及时准确的决策. Tetra Tech uses the latest high-resolution sensors and laser scanning technologies for various airborne and mobile surveying needs to provide detailed topographic maps, 三维模型, 路况及全球最大体育平台, 资产管理, 体积计算, 和更多的. Tetra Tech collects airborne imagery and light detection and ranging (LiDAR) data with unmanned aerial systems (UAS), 固定翼飞机, 直升机平台. We use the data as base maps and surface models for planning and 选址 projects as well as for asset mapping and design engineering. Imagery collected with multispectral and hyperspectral cameras allows for analysis of vegetation species for 允许 activities. An airborne data collection approach can survey hundreds of square miles quickly and accurately.
Mobile LiDAR data collection and mapping products are more efficient than traditional surveys because they produce more accurate datasets with faster collection times. LiDAR gathers a complete point cloud dataset that the user can revisit later for additional data mining. 这样就可以在同一项目站点上进行额外的或后续的工作. 激光雷达数据通常用于设施测绘, 精密地形模型, BIM模型, 资产管理. 对于大多数地面激光雷达项目, we can provide our clients registration of the data immediately after scanning. 一旦我们获得了数据, 根据需要处理补充数据是非常经济有效的, 不需要额外的实地考察和实地收集. 这使得数据可以在整个项目生命周期中使用.
We recognize that many of our clients do not have the infrastructure and software to store and visually display remotely sensed data. We develop visualization platforms and tools for display of imagery and LiDAR data, 变更检测模型, 以及衍生分析产品. The benefit of providing these tools and platforms is that it drives timely and accurate decision making.
将遥感和测绘技术集成到项目中
为客户提供最好的服务, Tetra Tech begins discussion of these technologies early in the project planning cycle. 我们的专家考虑项目规模, 位置, and the required level of accuracy to assess whether remotely sensed data would offer a benefit to the project.
The project size determines the appropriate type of data collection platform and sensor. 航空项目, 项目的规模将决定它是否最适合无全球最大体育平台机, 固定翼, 或者直升机平台. 例如, a wide-area collection for 选址 a well pad or a topographic analysis may have a different sensor approach than a smaller 2-acre site. Linear corridor acquisition of data will have a different sensor approach than a wide-area collection as well.
The project 位置 also plays a role in determining the type of data collection platform and sensor. 许多项目需要在特定的窗口期间进行收集, 例如，当设备被移出现场时, 当潮水低潮时, 或者当空域可用时. 飞行高度, 地形, and vegetation at a particular 位置 also determine the best sensor solution. 例如, many 位置s within the Pacific Northwest have heavy vegetation cover. A LiDAR collection in this region may require a different sensor system and flying height than a less vegetated area within the southwest United States.
Accuracy of the project deliverables will determine the platform and sensor solution. The required project accuracy and accuracy of derived products will determine the time collecting the site, 处理数据, 并创建派生数据. 项目精度最终决定了传感器的飞行高度, 航线的重叠, 而传感器最适合采集数据. 很多次, mapping products will require a stamp from a certified photogrammetrist to ensure standard mapping accuracies are met.
By implementing remote sensing and mapping technologies into projects early in the planning cycle, 利乐全球最大体育平台为我们的客户节省了宝贵的项目时间. 我们提供准确的, precision mapping products and high-quality visualizations that enable our clients to confidently make decisions based on precise data.
作者简介
蕾妮·沃姆斯利
蕾妮·沃姆斯利 is Tetra Tech’s remote sensing director and leads the Tetra Tech Geomatic Technologies Group.
Ms. Walmsley has more than 20 years of experience in the environmental resource management and consulting industries. 她是经过认证的地理信息系统专家(GISP)。, Federal Aviation Administration (FAA) Unmanned Aircraft System (UAS) remote pilot, and Project Management Professional (PMP) and has been working as a program manager for more than 15 years.
Her experience includes using GIS and remote sensing technologies as a part of various job requirements at 位置s throughout the United States and on international projects, 她在哪里管理了遥感的许多方面, 摄影测量和地理信息系统, 移动映射, 包括数据开发和分析, 图像分类, 以及新的传感器技术.
Renee还担任MAPPS的董事会成员, 全国私营地理空间公司协会.