High-resolution Remotely Piloted Aircraft imagery, Vestfold Hills, January 2020

This dataset contains unedited digital photographs from five small, high-resolution drone surveys in the Vestfold Hills, Prydz Bay in January 2020.These images were collected by Geoscience Australia as part of AAS Project 4393, 'Assessment of landscape vulnerability to human impacts in the Vestfold Hills, Prydz Bay'. Marine Plain images were taken as part of AAS 4393 and Project 5034. Each survey covers about 1 hectare in Adams Flat, Heidemann Valley, near Lake Dingle, and two fossil sites in ASPA No. 143 Marine Plain. Images were taken with a DJI Mavic 2 Pro Remotely Piloted Aircraft, which has a 20-megapixel Hasselblad camera. Each image file contains details of:- camera model and version- f-stop- ISO- exposure time- focal length- latitude and longitude (WGS 84)- altitude- metering mode- white balance- date and time taken. Images are .jpg format and labelled with the default name from the internal drone software (e.g. DJI_0001.JPG).The image collection was automated with a drone survey app (DroneDeploy) with 90% frontlap and 80% sidelap for flight lines. Flight height was about 50 m. Horizontal location is accurate to +/- 3 m and is from the internal navigation system of the drone. Vertical location is accurate to +/- 10 m.The images were collected to generate Structure from Motion models of the ground surface to assess detailed surface topography, composition, and potential vulnerability to damage and change. In ASPA No. 143 Marine Plain, the images were taken to assess the current condition of two fossil sites that have been protected with geotextile. The flights were conducted as a proof of concept and the data should not be used for anything other than a demonstration.本数据集包含2020年1月于普里兹湾（Prydz Bay）韦斯特福尔德丘陵（Vestfold Hills）开展的五组小型高分辨率无人机航拍作业所采集的未经过编辑的数码照片。上述影像由澳大利亚地质调查局（Geoscience Australia）作为AAS项目4393《评估普里兹湾韦斯特福尔德丘陵地区景观对人类活动影响的脆弱性》的组成部分采集完成。其中海洋平原（Marine Plain）相关影像同时隶属于AAS 4393项目与5034项目。 各次航拍作业的覆盖面积约为1公顷，作业区域分别位于亚当斯平原（Adams Flat）、海德曼谷（Heidemann Valley）、丁格尔湖（Lake Dingle）附近，以及南极特别保护区（ASPA No.143）海洋平原内的两处化石遗址。本次航拍采用DJI Mavic 2 Pro遥控飞行器（Remotely Piloted Aircraft）完成，该设备搭载2000万像素哈苏（Hasselblad）相机。 每张图片文件均包含以下元数据：相机型号与版本、光圈值（f-stop）、ISO感光度、曝光时长、焦距、经纬度（WGS 84坐标系）、飞行高度、测光模式、白平衡、拍摄日期与时间。所有图片均采用JPEG格式存储，文件名沿用无人机内置飞行软件生成的默认命名规则（例如DJI_0001.JPG）。 本次影像采集通过无人机航拍应用（DroneDeploy）实现自动化飞行，航线前向重叠度与旁向重叠度分别为90%与80%，飞行高度约为50米。水平定位精度可达±3米，数据来源于无人机内置导航系统；垂直定位精度可达±10米。 本数据集的采集目的为通过影像生成地面表面运动恢复结构（Structure from Motion, SfM）模型，以评估精细地表地形、地表组成，以及地表遭受破坏与发生变化的潜在脆弱性。针对南极特别保护区143号海洋平原区域的航拍，旨在评估两处已采用土工布（geotextile）保护的化石遗址的当前状态。本次飞行仅作为概念验证，相关数据仅可用于演示用途，不得挪作他用。