Super-high-resolution aerial imagery, digital surface model and 3D point cloud of the Northern Kitluk Coast, Alaska (subset 03)

As part of the Perma-X airborne campaign led by the Alfred Wegener Institute in 2021, we collected super-high-resolution multispectral imagery of permafrost landscapes with the Modular Aerial Camera System (MACS), developed by the German Aerospace Center. From these images, we photogrammetrically processed four-band orthophotos (blue, green, red, near-infrared) and digital surface models at a spatial resolution of 10 cm, as well as photogrammetric point clouds in RGB and NIR at 9.80 pts/m² and 3.26 pts/m², respectively. This dataset covers approximately 25.83 km² of the Kitluk Coast the northern Seward Peninsula in Alaska, with all images collected on 9 July 2021. This super-high-resolution dataset provides opportunities for generating detailed training datasets of permafrost landform inventories, a baseline for change detection for thermokarst and thermo-erosion processes, and upscaling of field measurements to lower-resolution satellite observations.本数据集作为2021年由阿尔弗雷德·魏格纳研究所（Alfred Wegener Institute）主导的Perma-X航空科考项目的组成部分，研究团队借助德国航空航天中心（German Aerospace Center）研发的模块化航空相机系统（Modular Aerial Camera System, MACS），采集了冻土景观的超高分辨率多光谱影像。基于上述影像，我们通过摄影测量流程处理生成了空间分辨率为10厘米的四波段正射影像（包含蓝、绿、红、近红外（Near-Infrared, NIR）四个波段）与数字地表模型；同时还生成了RGB和NIR格式的摄影测量点云，其点密度分别为9.80个点/平方米与3.26个点/平方米。本数据集覆盖阿拉斯加州苏厄德半岛北部基特卢克海岸约25.83平方千米的区域，所有影像均采集于2021年7月9日。该超高分辨率数据集可用于构建冻土地貌编目的精细化训练数据集，为热融喀斯特与热侵蚀过程的变化检测提供基准参照，同时支持将野外实测数据尺度上推至低分辨率卫星观测场景。