Digital Elevation Model and Hillshade of Mokka Fjord Ring Forms on Axel Heiberg Island, Nunavut, Canada

Clipped DEM and Hillshade of Mokka Fjord ring forms on Axel Heiberg Island, Nunavut, Canada collected with the AkhkaR4DW, a backpack mobile laser scanning system, in July 2019. This system is used to kinematically collect high-precision 3D topographic data (Kukko et al., 2012; Liang et al., 2015; Kukko et al., 2017, 2020; Hyyppä et al., 2020). These data products include a bare earth DEM and Hillshade with 5 cm/pixel resolution that were created using Whitebox Geospatial Analysis Tools (GAT), an open-source geospatial data analysis software developed by Professor John Lindsay at the University of Guelph (Lindsay, 2014, 2016). More details abotu these data products can be found in Hibbard et al., The Cryosphere, 2025.

2019年7月，研究团队借助背包式移动激光扫描系统AkhkaR4DW，于加拿大努纳武特地区阿克塞尔·海伯格岛（Axel Heiberg Island）的莫卡峡湾（Mokka Fjord）环形地貌区域完成数据采集，经裁剪后得到数字高程模型（Digital Elevation Model, DEM）与山体阴影（Hillshade）数据集。该系统可动态采集高精度三维地形数据（Kukko et al., 2012; Liang et al., 2015; Kukko et al., 2017, 2020; Hyyppä et al., 2020）。本次产出的数据产品包含分辨率为5厘米/像素的裸地数字高程模型与山体阴影，其生成依托开源地理空间数据分析软件Whitebox Geospatial Analysis Tools（GAT）——该软件由圭尔夫大学约翰·林赛教授开发（Lindsay, 2014, 2016）。有关此类数据产品的更多详细信息可参见Hibbard等人发表于《冰冻圈（The Cryosphere）》2025年的研究成果。