Drone Photographs from the Sediment Area 2019-7-30 Flight Date (Dover, NH, USA)

These are the raw drone aerial images taken of the sediment area on July 30, 2019 for the Evans et al. Sawyer Mill dam removal study. Alexandra Evans, a certified FAA Part 107 remote pilot, served as the remote pilot in command for the flight mission and was accompanied by spotters.<br>A DJI Phantom 3 Professional drone was used to take the images, equipped with its original RGB camera and a polarizing filter. Please see the referenced automated flight paths for details on altitude, image overlap, etc. The flight paths were executed using the Litchi flight app.<br>These materials were made using resources from an NSF EPSCoR funded project “RII Track-2 FEC: Strengthening the scientific basis for decision-making about dams: Multi-scale, coupled-systems research on ecological, social, and economic trade-offs” (a.k.a. "Future of Dams"). Support for this project is provided by the National Science Foundation’s Research Infrastructure Improvement NSF #IIA-1539071. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

本数据集为2019年7月30日针对Evans等人开展的索耶米尔大坝（Sawyer Mill）拆除研究拍摄的沉积物区域无人机航拍原始影像。本次飞行任务的主控无人机驾驶员为持有美国联邦航空管理局（Federal Aviation Administration, FAA）Part 107资质认证的Alexandra Evans，任务期间配有观察员协助。

本次影像采集采用大疆（DJI）精灵3专业版（Phantom 3 Professional）无人机，搭载原厂RGB相机与偏振滤镜。影像拍摄的飞行高度、图像重叠度等详细参数详见参考的自动化飞行航线。本次飞行航线通过Litchi飞行应用程序执行。

本数据集相关材料依托美国国家科学基金会（National Science Foundation, NSF）EPSCoR项目资助的"RII Track-2 FEC：强化大坝决策科学依据——生态、社会与经济权衡的多尺度耦合系统研究"（又名"大坝的未来（Future of Dams）"）研发资源制作。本项目由美国国家科学基金会研究基础设施改进计划（NSF #IIA-1539071）提供资助。本材料中所表达的任何观点、研究发现、结论及建议均仅代表作者个人立场，不必然反映美国国家科学基金会的官方态度。