Orthophoto imagery 2022

This dataset provides links to aerial imagery (orthophoto) taken in 2022 as individual tiled areas over the City of Vancouver.An orthophoto is an aerial photograph that has been processed (via a scanning and rectification process) in such a way as to eliminate image displacement due to camera tilt and terrain relief, so that it represents every object as if viewed directly from above, as in a map which is usually in an orthographic projection. An orthophoto combines the visual properties of a photograph with the geometric qualities of a map and offers a realistic visualization of the landscape.The City's orthophoto coverage includes the City, UBC, and the University Endowment Lands and parts of Richmond and the Vancouver International Airport (YVR) as well. The area is defined by the City's facet grid (see Facet Grid Boundaries).Since the 2015 orthophotos, resolution for our imagery is 7.5 cm. Orthophotos are in coordinate system UTM NAD83, Zone 10 (EPSG:26910). Note​Atmospheric correction was not applied to this dataset. Data currency​The 2022 orthophotos were captured between June 6, 2022 and July 1, 2022. This imagery is current as of these dates.​ Data accuracy​Imagery is accurate as of the dates it was taken although colours may or may not be exactly as occurred on that day as colours change from moment to moment due to sun and cloud cover.

本数据集提供2022年拍摄的航空影像（正射影像）链接，这些影像以独立拼接区域覆盖温哥华市。正射影像是一种经过处理（通过扫描和校正过程）的航空照片，其方式旨在消除由于相机倾斜和地形起伏引起的图像位移，从而使得每个物体都如同直接从上方观看，如同通常的正射投影地图一般。正射影像结合了照片的视觉属性与地图的几何特性，提供了景观的逼真可视化。该市正射影像覆盖范围包括市区、不列颠哥伦比亚大学、大学捐赠土地以及部分里士满和温哥华国际机场（YVR）。该区域由市面的分面网格定义（见分面网格边界）。自2015年的正射影像以来，我们的影像分辨率达到7.5厘米。正射影像采用UTM NAD83坐标系，第10区（EPSG:26910）。注意：本数据集未应用大气校正。数据时效性：2022年的正射影像拍摄于2022年6月6日至7月1日之间。这些影像截至这些日期保持时效性。数据准确性：影像的准确性截至拍摄日期，尽管由于阳光和云层的实时变化，颜色可能与当天实际发生的颜色不完全一致。