Taku Glacier, Southeast Alaska aerial photogrammetry, August 2, 2015. DEM and Orthomosaic tiles

Vertical air photos were taken over the lower reaches of Taku Glacier, Southeast Alaska, on Aug 2, 2015. These photos, provided in JPG format, and their gps positions were input to Agisoft’s Photoscan Pro to process 26 DEM tiles and 36 and Orthomosaic tiles using Structure from Motion (SfM) analysis. The files are provided here in geotiff format. The -0-1, -0-2, etc, at the end of the file names describe the x and y positions of each tile relative to the whole grid of these tiles. There are coordinates of each tile extent (corners) within each geotiff header in all of these files.2015年8月2日，科研团队于阿拉斯加东南部塔库冰川下游区域获取了垂直航空影像。这批以JPG（JPEG）格式提供的影像及其GPS定位信息被输入至Agisoft公司的Photoscan Pro软件，通过运动恢复结构（Structure from Motion，SfM）分析方法，生成了26张数字高程模型（DEM）瓦片与36张正射影像镶嵌图瓦片。本次提供的数据集文件均采用GeoTIFF（地理标记图像文件格式）格式。文件名末尾的-0-1、-0-2等后缀，用于标注各瓦片相对于该组瓦片整体网格的X、Y坐标位置。所有上述文件的GeoTIFF文件头中，均包含对应瓦片覆盖范围的四角顶点坐标信息。