Maine Orthoimagery Regional 2019 (Imagery Layer)

Image Service | OGC WCS | OGC WMS | KMZ | Tile Download Maine Statewide Orthoimagery Project - All imagery was collected during the 2019 Spring flying season during leaf-off conditions for deciduous vegetation in the State of Maine. The sun angle was at 30-degrees or greater, and streams were within their normal banks. During the flight planning and acquisition, a significant effort was made to limit clouds, snow, fog, haze, smoke, or other ground obscuring conditions in the imagery. In no case does the maximum cloud cover exceed 5% per image. Within the immediate areas of power plants, factories, or controlled agricultural burns some steam or smoke and/or shadows may be visible on imagery. The Maine GeoLibrary Board has developed a statewide, 5-year, rotating orthoimagery acquisition program for Maine to facilitate state, regional and local government GIS base mapping in an efficient and cost-effective program. The State of Maine will use digital orthoimagery for the development of various base map products in a computerized GIS that will support the needs of the state and multiple stakeholders through applications, such as, multi-jurisdictional homeland security mapping applications, state and county emergency management applications, regional and local planning, state and local public safety applications, economic development and other GIS business objectives.影像服务 | OGC WCS | OGC WMS | KMZ | 瓦片下载 缅因州全州正射影像（Orthoimagery）项目——所有影像均采集于2019年春季航摄季，针对缅因州境内的落叶植被采用了落叶期拍摄工况。航摄时太阳高度角不低于30度，河流水位均处于正常岸线范围内。项目组在航摄规划与影像采集阶段已采取多项严格管控措施，尽可能规避云层、积雪、雾霭、阴霾、烟尘及其他地面遮挡因素对影像的干扰，所有单幅影像的最大云量覆盖率均不超过5%。仅在发电厂、工厂或受控农业焚烧的紧邻区域内，影像中可能会出现少量蒸汽、烟尘或阴影。缅因州地理图书馆委员会（Maine GeoLibrary Board）已为缅因州制定了一项为期5年的全州轮采正射影像采集计划，旨在通过高效且经济的方案，支撑州、区域及地方政府的GIS基础制图工作。缅因州将采用数字正射影像，依托计算机化地理信息系统（GIS）开发多款基础地图产品，以此满足本州及多方利益相关方的多样化应用需求，应用场景涵盖跨辖区国土安全制图、州与县级应急管理、区域及地方规划、州及地方公共安全保障、经济发展及其他GIS业务相关领域。