Canopy 2019

Developed using LiDAR and imagery collected in the summer of 2019. Canopy was detected using a combination of normalized difference vegetation index (NDVI) from the imagery and feature heights from LiDAR. Geometric post-processing was used to clean up errors and noise (i.e., electrical lines above green vegetation). Date of last data update: 2022-06-22 This is official RLIS data. Contact Person: Joe Gordon [e-mail] Emailing the contact person listed above is the fastest way to get a response, but if you prefer to call, you can contact the Data Resource Center at 503-797-1742 and someone will return your call as soon as they are able. RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/3726 Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/open-database-license本数据集基于2019年夏季采集的激光雷达（LiDAR）与影像数据构建。植被冠层通过结合影像的归一化差分植被指数（normalized difference vegetation index，NDVI）与激光雷达的地物高度信息进行识别。通过几何后处理流程清理数据误差与噪声（如绿色植被上方的电力线路干扰）。本次数据最后更新日期：2022年6月22日。本数据集为官方RLIS数据。联系人：乔·戈登（Joe Gordon），邮箱：[e-mail]。通过上述联系人发送邮件是获得回复的最快途径；若您偏好致电咨询，可拨打数据资源中心电话503-797-1742，工作人员将尽快回电。RLIS元数据查看器：https://gis.oregonmetro.gov/rlis-metadata/#/details/3726。使用条款：https://rlisdiscovery.oregonmetro.gov/pages/open-database-license