Collaborative Research MRI: Acquisition of Terrestrial Laser Scanning Systems for Earth Sciences Research

来自与中央华盛顿大学(PI：RUBIN；EAR-0923539)的这笔合作赠款的MillerFunds将支持购置地面激光扫描设备，这些设备将通过联阿援助团国家地球科学大地测量支助设施设备贷款池提供给更广泛的地球科学界。TLS系统和辅助设备，包括数码相机和坚固耐用的野外笔记本电脑，将促进研究和研究培训应用程序，这些应用程序将利用TLS的独特能力，对自然和人造表面(例如，露头岩石、植被、海滩剖面、积雪、土木结构)进行亚厘米分辨率的测绘。TLS技术基于精确的飞行时间测量能力，从激光光子源到目标表面，然后返回到扫描范围长达3公里的探测器。激光光栅化允许快速、精确地绘制表面特征的3-D地图。与GPS相结合，TLS扫描可以准确地参考适当的基准。数字摄影的加入产生了照片级逼真的3D图像。TLS系统是便携的，因此适用于许多不同环境中的广泛用户应用。联阿援助团将通过讲习班和外联活动提供用户培训。

0923539MillerFunds from this collaborative grant with Central Washington University (PI: Rubin; EAR-0923539) will support acquisition of terrestrial laser scanning (TLS) equipment that will be made available through the UNAVCO National Earth Science Geodetic Support Facility equipment loan pool to the broader geoscience community. The TLS systems and ancillary equipment including a digital camera and ruggedized field laptops will facilitate research and research training applications that will take advantage of the unique capability of TLS for sub-cm resolution mapping of natural and manmade surfaces (e.g., rock outcrops, vegetation, beach profiles, snow pack, civil structures). TLS technology is based on precise time-of-flight measurement capability from a laser photon source to a target surface and return to a detector with scanning ranges of up to 3 km. Rastering of the laser beam allows for rapid, precision 3-D mapping of surface features. Coupled with GPS, TLS scans can be accurately referenced to an appropriate datum. The addition of digital photography yields photorealistic 3D images. TLS systems are portable and therefore suitable for a wide spectrum of user applications in many different environments. UNAVCO will provide user training through workshops and outreach activities.