Lunar ASP DEM Test PDS4 Bundle

A pair of Ames Stereo Pipeline (ASP) generated LROC NAC Digital Elevation Models in NASA PDS4 structure. <strong>Purpose:</strong> Created as part of a testing effort funded by the LPI. The purpose of this dataset is to provide example LROC NAC Digital Elevation Models (DEMs) generated using rapid Ames Stereo Pipeline (ASP) processing. The example DEMs were assessed for suitability for scientific analysis. <strong>Data Set Overview: </strong>The archive contains 2 DEMs, in GeoTiff format, as a right image and a left image. The DEMs were generated using the ASP online tutorial and version of the software downloaded in March 2022 from github using the latest build (https://github.com/NeoGeographyToolkit/StereoPipeline). The DEMs cover a portion of Glushko crater's extensive ejecta ray system, Earth's Moon. The DEMs were generated using map-projected Lunar Reconnaissance Orbiter Camera (LROC) Narrow Angle Camera (NAC) input images that were collected as a stereo pair but have not yet been processed into a DEM using photogrammetric techniques. The base shape model for the projection is the LROC Wide Angle Camera (WAC) GLD100 topographic product. The map-projected images were run using parallel_stereo and point2dem processes in the ASP toolkit. The output is a DEM in geotiff format. The included test DEMs, archive structure, related documents, and xml files are formatted to best effort in pds4 format following online documentation by NASA PDS (as of Sept 2022 at https://pds.nasa.gov). Files were validated using the PDS Validate tool (downloaded Sept 2022, version v2.3.0, from https://github.com/NASA-PDS/validate). Xml templates were modified from existing related examples (Watkins 2018, Herrick and Ward 2020, Hare and Trent 2018). The provided files have been self-validated but are not validated by the Planetary Data System (PDS) and are provided for educational and training purposes only, and could contain errors or inconsistencies.本数据集为一对由艾姆斯立体管线（Ames Stereo Pipeline, ASP）生成的月球勘测轨道飞行器相机窄角相机（Lunar Reconnaissance Orbiter Camera Narrow Angle Camera, LROC NAC）数字高程模型（Digital Elevation Model, DEM），采用NASA PDS4架构格式。 【数据集用途】：本项目由月球与行星研究所（Lunar and Planetary Institute, LPI）资助的测试项目开发。本数据集旨在提供通过快速艾姆斯立体管线（ASP）处理流程生成的LROC NAC数字高程模型（DEM）示例，并已对示例DEM的科学分析适用性进行了评估。 【数据集概览】：本归档包含2份GeoTiff格式的DEM，分别对应立体像对的左、右影像。本DEM基于ASP在线教程及2022年3月从GitHub下载的最新版软件构建版本（https://github.com/NeoGeographyToolkit/StereoPipeline）生成，覆盖了月球格鲁什科撞击坑（Glushko Crater）广泛分布的溅射射线系统的一部分区域。本DEM由经过地图投影的LROC窄角相机（NAC）立体像对输入影像生成，这类影像虽已被采集为立体对，但尚未通过摄影测量技术处理为DEM。本次投影所使用的基础形状模型为LROC广角相机（WAC）GLD100地形产品。经地图投影的影像通过ASP工具集中的parallel_stereo和point2dem流程进行处理，最终输出为GeoTiff格式的DEM。本归档包含的测试DEM、归档架构、相关文档及XML文件均已尽可能遵循NASA PDS于2022年9月发布的官方在线文档（https://pds.nasa.gov），以PDS4格式进行格式化。所有文件均使用PDS验证工具（2022年9月从GitHub下载的v2.3.0版本，https://github.com/NASA-PDS/validate）进行了自检。XML模板基于现有相关示例修改而来（Watkins 2018、Herrick与Ward 2020、Hare与Trent 2018）。本次提供的文件已完成自检，但尚未经过行星数据系统（Planetary Data System, PDS）的官方验证，仅用于教育与培训用途，可能存在错误或不一致之处。