Orthomosaic and digital surface model of Casey station, 25th January 2025

Casey station orthomosaic and digital surface model compiled from nadir imagery acquired from two consecutive mapping missions by a DJI Matrice 300 quadcopter. Orthomosaic produced from 2,649 images acquired with the DJI Zenmuse P1 camera (35mm lens, 8192 * 5460 pixels). Average flying altitude 78.7m, ground resolution 9.25 mm/ pixel. Missions were flown with the DJI base station (D-RTK-2) in two different positions (1 setup for each mission), and photo GNSS data has not been PPK processed. Flights were undertaken by Dr Rebecca McWatters and Kathryn (Kat) East.Processed by Dan Wilkins in Agisoft Metashape (2.1.2 build 18548) on the 29 March 2025.Horizontal Datum is WGS84, vertical datum is height above ellipsoid.

本数据集为凯西站（Casey station）正射影像图（orthomosaic）与数字表面模型（digital surface model），由DJI Matrice 300四旋翼无人机两次连续测绘任务采集的天底影像（nadir imagery）合成。该正射影像图由搭载35mm镜头、单张影像分辨率为8192×5460像素的DJI Zenmuse P1相机拍摄的2649张影像生成，本次任务平均飞行高度为78.7米，地面分辨率达9.25毫米/像素。两次测绘任务均使用DJI基准站（D-RTK-2），每次任务各布设1个基站位置，且影像配套的GNSS数据未经过PPK处理。本次飞行任务由丽贝卡·麦沃特尔斯（Rebecca McWatters）博士与凯瑟琳（凯特）·伊斯特（Kathryn (Kat) East）共同执行，数据处理工作由丹·威尔金斯（Dan Wilkins）于2025年3月29日在Agisoft Metashape（2.1.2 build 18548）软件中完成。本数据集采用WGS84作为水平基准，垂直基准为椭球高程。