Orthophoto imagery 2008

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. As such, it exceeds the area defined by the City's facet grid (see Facet Grid Boundaries).The 2008 orthophotos are very high quality 10 cm pixel resolution.  The downtown area was taken from an altitude of 8000 feet to minimize building lean. The rest of the City was taken from an altitude of 6000 feet.Data accessOrthophotos are only available to download directly from our FTP site. MrSID format: Zipped facets files - download facet sets from a map ECW format: Zipped facets files - download facet sets from a map Download a single ECW file for the entire city This file is very large (4 GB)Coordinate systemMr. SID and ECW formatted data are projected in UTM Zone 10, NAD83 (CSRS). Data currencyThis imagery is captured at one point in time and is current as of that date but it does not change. The 2008 orthophotos were captured in late April, 2008 Data accuracyImagery is accurate as of the date 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.

该城市正射影像覆盖范围包括市区、不列颠哥伦比亚大学以及大学捐赠地，以及部分里士满和温哥华国际机场（YVR）区域。因此，其覆盖面积超出了城市面网格所定义的区域（参见面网格边界）。2008年的正射影像具有极高的质量，像素分辨率为10厘米。市中心区域从8000英尺的高度拍摄以减少建筑物的倾斜，而城市其他区域则从6000英尺的高度进行拍摄。数据访问：正射影像仅可通过我们的FTP站点直接下载。MrSID格式：压缩的面网格文件——可通过地图下载面网格集；ECW格式：压缩的面网格文件——可通过地图下载面网格集；此外，还可以下载整个城市的单个ECW文件，该文件体积庞大（4 GB）。坐标系：Mr. SID和ECW格式的数据投影于UTM第10区，NAD83（CSRS）。数据时效性：该影像是在某一特定时间点捕捉的，自该日期起保持时效性，但不会发生变化。2008年的正射影像是在2008年4月下旬捕捉的。数据精度：影像的精度以捕捉日期为准，尽管颜色可能并不完全准确，因为由于阳光和云层的覆盖，颜色会随时间而变化。