North Western Ontario Orthophotography Project (NWOOP) 2022 1km Index

The imagery products described in this metadata record are open data. Use of any imagery indicates your acceptance of the Open Government Licence – Ontario. The North Western Ontario Orthophotography Project (NWOOP) 2022 imagery acquisition was part of a Geospatial Ontario coordinated project that included funding contributions from Ontario, and other public and private sector organizations to collect high-resolution aerial imagery. This aerial project is part of a five-year plan (2018-2022) to acquire high-resolution, leaf-off/low leaf imagery of settled areas across the province. The NWOOP 2022 was acquired in the spring of 2022 under the best conditions possible to achieve cloud free, snow free, ice free, smoke free and leaf off/low leaf captures. The orthophotography has a pixel resolution of 20 centimetres and a stated accuracy of 60 centimetres on the ground. Time of Capture: May 15th 2022 - November 2nd 2022 Coverage: 40,675 square kilometres Canopy Coverage: Leaf-Off/Low-Leaf Resolution: 20 centimetre Bit-depth: 8-bit Number of Image bands: Four band (RGBN) Accuracy: Within 60 centimetres on the ground at 95% confidence. Format: GeoTIFF (and compressed GeoTIFF) Regularly check the Geospatial Ontario Imagery Page for the availability of online geospatial services that contain NWOOP 2022. Use the Geospatial Ontario Imagery Orders App to select and request uncompressed or compressed digital imagery tiles from Geospatial Ontario for transfer directly to you. Stereo imagery and associated stereo models are available. Please see the related Stereo Index record on GeoHub for more information. The acquisition area spans two Universal Transverse Mercator (UTM) Zones of UTM Zone 15 and UTM Zone 16. View the acquisition area for each zone by clicking the links near the bottom of this record. A new page opens, and you may need to zoom in to see the individual one-kilometre squared tiles. To download the index, click the ‘View Full Details’ button and finally the ‘Download’ button near the top of the page that opens. Alternatively, you can click HERE to bring the map up in an ArcGIS online map viewer. Available Products: Orthorectified Tiles North Western Ontario Orthophotography Project (NWOOP) 2022 - 1km Ortho Index Full Quality Sample (95MB) Compressed Sample (7MB) Stereo Frames North Western Ontario Orthophotography Project (NWOOP) 2022 - Stereo Frame Index 1.9 - 2.4GB per frame Additional Resources: Imagery User Guide (.docx) Maintenance and Update Frequency: Imagery data will be updated as needed. Contact: Ontario Ministry of Natural Resources - Geospatial Services, [e-mail]本元数据记录中描述的影像产品为开放数据。使用任何影像即表示您接受《安大略省开放政府许可协议》（Open Government Licence – Ontario）。 安大略省西北部正射影像项目（North Western Ontario Orthophotography Project, NWOOP）2022版的影像采集工作，属于安大略省地理空间（Geospatial Ontario）统筹项目的组成部分，该项目获得了安大略省及其他公共、私营部门机构的资金支持，用于采集高分辨率航空影像。本航空影像项目隶属于2018-2022年五年规划，旨在采集全省定居区域的高分辨率无叶/少叶航空影像。 NWOOP 2022于2022年春季在最优条件下完成采集，以实现无云、无雪、无冰、无烟以及无叶/少叶的拍摄目标。该正射影像的像素分辨率为20厘米，地面标称精度为60厘米。 采集时间：2022年5月15日 — 2022年11月2日 覆盖范围：40675平方公里 冠层覆盖情况：无叶/少叶 分辨率：20厘米 位深度：8位 影像波段数：四波段（RGBN） 精度：95%置信度下，地面定位误差不超过60厘米 格式：GeoTIFF（及压缩版GeoTIFF） 请定期访问安大略省地理空间影像页面，以获取包含NWOOP 2022的在线地理空间服务的可用情况。您可使用安大略省地理空间影像订购应用程序（Geospatial Ontario Imagery Orders App），选择并申请未压缩或压缩的数字影像瓦片，由安大略省地理空间部门直接传输至您的设备。 立体影像及相关立体模型可供使用，详情请参阅GeoHub上的相关立体索引记录。 本次采集区域跨越两个通用横轴墨卡托（Universal Transverse Mercator, UTM）分区，即UTM 15区与UTM 16区。您可通过点击本记录底部附近的链接，查看每个分区的采集区域。新页面将打开，您可能需要放大视图才能查看单个1平方公里的瓦片。如需下载索引，请点击「查看完整详情」按钮，再点击打开页面顶部附近的「下载」按钮。或者，您也可以点击此处在ArcGIS在线地图查看器中加载地图。 可用产品： 1. 正射校正瓦片：安大略省西北部正射影像项目（NWOOP）2022版——1公里正射索引 2. 完整质量样本（95MB） 3. 压缩样本（7MB） 4. 立体像对：安大略省西北部正射影像项目（NWOOP）2022版——立体像对索引；单帧大小为1.9-2.4GB 附加资源：影像用户指南（.docx） 维护与更新频率：影像数据将根据实际需求进行更新。 联系方式：安大略省自然资源部——地理空间服务部门，邮箱：[e-mail]