Data for: Constructing vertical measurement logs using UAV-based photogrammetry: Applications for multiscale high resolution analysis of coarse-grained volcaniclastic stratigraphy

This dataset includes UAV based grain measurements from volcaniclastic units from Kingston Canyon (38.11235°, 112.33470°) and Circleville Canyon (38.20198°, 112.15272°), Utah. Imagery was collected using a DJI Phantom 4 drone in 2018-2019 and orthomosaics were produced using Agisoft Photoscan. The data collected from Kingston Canyon was measured from a 5 mm resolution orthomosaic; the data collected from Circleville Canyon was measured from a 7 mm resolution orthomosaic. All measurements were conducted using ArcGIS Pro. This data can be used for enhanced analysis of coarse-grained volcaniclastic stratigraphy.

本数据集包含来自美国犹他州金士顿峡谷（Kingston Canyon，坐标38.11235°，112.33470°）与瑟克尔维尔峡谷（Circleville Canyon，坐标38.20198°，112.15272°）火山碎屑岩单元的无人机（Unmanned Aerial Vehicle, UAV）颗粒测量数据。2018至2019年间，研究团队使用大疆精灵4（DJI Phantom 4）无人机采集影像，并通过Agisoft Photoscan软件生成正射影像图。其中，金士顿峡谷的测量数据基于分辨率为5毫米的正射影像图获取，瑟克尔维尔峡谷的测量数据则基于分辨率为7毫米的正射影像图获取。所有测量工作均依托ArcGIS Pro软件完成。本数据集可用于粗粒火山碎屑岩地层的精细化分析。