Eugene 2-ft Contours (LiDAR) - HUB

Note: The shapefile download may fail when downloading the entire dataset. If this happens, download the file geodatabase instead. Feature class contains 2-foot interval contours of the area surrounding and including the Eugene urban growth boundary. Contours have been derived by LCOG from 2009 LiDAR data. The LiDAR data was prepared by Watershed Science for DOGAMI. General processing includes (1) joining Junction City, Coburg, Eugene East and Eugene West bare-earth quads into one mosaic, (2) smoothing the mosaic with a focal mean (3 x 3 rectangle), (3) contouring the smoothed bare-earth mosaic, and (4) quality-checking along the edges of the quads to insure matching contours. (DISCLAIMER: The maps and data available for access from the City of Eugene are provided "as is" without warranty or any representation of accuracy, timeliness or completeness. The burden for determining accuracy, completeness, timeliness, merchantability and fitness for or the appropriateness for use rests solely on the user accessing this information. The City of Eugene makes no warranties, expressed or implied, as to the use of the maps and data available for access at this website. There are no implied warranties of merchantability or fitness for a particular purpose. The user acknowledges and accepts all inherent limitations of the maps and data, including the fact that the maps and data are dynamic and in a constant state of maintenance, correction and revision. Any maps and associated data for access do not represent a survey. No liability is assumed for the accuracy of the data delineated on any map, either expressed or implied.)注意：完整数据集的形状文件（shapefile）可能无法下载。若出现该情况，请改为下载文件地理数据库（file geodatabase）。 本要素类（feature class）包含尤金（Eugene）城市增长边界及其周边区域的2英尺间隔等高线。该等高线由LCOG基于2009年激光雷达（LiDAR）数据生成。此LiDAR数据由Watershed Science为DOGAMI制作。 整体处理流程包括：(1) 将Junction City、Coburg、尤金东区（Eugene East）及尤金西区（Eugene West）的裸地形图幅拼接为一幅镶嵌图；(2) 使用3×3矩形窗口的邻域均值滤波对镶嵌图进行平滑处理；(3) 对平滑后的裸地形镶嵌图生成等高线；(4) 沿各图幅边缘开展质量检查，确保等高线衔接一致。 【免责声明】尤金市提供的地图与数据均按"现状"提供，不就其准确性、时效性或完整性作出任何保证或陈述。用户需自行承担判断数据准确性、完整性、时效性、适销性及适用性的全部责任。尤金市未就本网站可获取的地图与数据的使用作出任何明示或默示担保。不存在针对特定用途的适销性或适用性的默示担保。用户知晓并接受地图与数据固有的所有局限性，包括地图与数据处于动态更新、持续维护、修正与修订状态这一事实。本网站提供的任何地图及相关数据均不构成正式测绘成果。无论明示或默示，对于任何地图上标注的数据的准确性，尤金市均不承担任何责任。