NC Latest Orthoimagery

NOTE: DO NOT DOWNLOAD THE IMAGERY BY USING THE MAP OR DOWNLOAD TOOLS ON THIS ARCGIS HUB ITEM PAGE. IT WILL RESULT IN A PIXELATED ORTHOIMAGE. INSTEAD, DOWNLOAD THE IMAGERY BY TILE OR BY COUNTY MOSAIC (2010 - current year). The NC Orthoimagery Program collects and produces 6-inch (15cm) orthoimagery on a 4-year cycle. Approximately a quarter of the state is flown each year to develop streaming imagery services, 5,000' by 5,000' tiles, and compressed single-file county mosaics. Beginning in 2020, the State started collecting a fourth band (near infrared) of imagery which, when combined with the other 3 bands of red, green, and blue, opens new possibilities for exploration and analysis. The Orthoimagery Latest image service uses the most recent imagery collected for any location in North Carolina to depict a 3-band, natural color representation of the data. The imagery has a pixel resolution of 6 inches with an RMSE of 1.0 ft X and Y. Pixel values have been altered during processing so this data is best suited for general or background viewing and should not be used for raster analysis. This data is also available as a WMS service. Viewing the latest imagery Several web services are also available that depict the latest imagery for any location in the state. These support general viewing and raster analysis and are offered in various protocols including Esri (e.g. REST, SOAP) and OGC (e.g., WMS, WFS, WCS). These can be found by searching using the terms "orthoimagery" and "latest." To help determine which is most suitable, refer to this guide.注意：请勿通过此ArcGIS Hub项目页面中的地图或下载工具下载影像，此举将生成像素化的正射影像（orthoimagery）。请改用分幅（2010年-当前年份）或按县拼接的影像进行下载。 北卡罗来纳州正射影像项目（NC Orthoimagery Program）每四年为一个循环周期，采集并制作6英寸（15厘米）分辨率的正射影像。该项目每年航摄覆盖该州约四分之一的区域，以生成流式影像服务、5000英尺×5000英尺的分幅瓦片，以及压缩后的单文件县域拼接影像。 2020年起，该州新增采集第四波段影像——近红外波段，将其与原有的红、绿、蓝三个波段结合后，可为影像探索与分析带来全新可能。 最新正射影像服务（Orthoimagery Latest image service）采用北卡罗来纳州任意区域的最新采集影像，以三波段自然色彩方式呈现数据。该影像的像素分辨率为6英寸，X、Y方向的均方根误差（RMSE）为1.0英尺。 由于处理过程中已对像素值进行调整，因此该数据仅适用于常规浏览或作为背景展示，不可用于栅格分析。该数据也可通过WMS（Web Map Service）服务获取。 关于最新影像的浏览：本州任意区域的最新影像还可通过多种网页服务呈现，这些服务支持常规浏览与栅格分析，提供包括Esri协议（如REST、SOAP）及OGC（Open Geospatial Consortium）协议（如WMS、WFS、WCS）在内的多种协议。可通过搜索"orthoimagery"与"latest"关键词查找此类服务。如需确定最适配的服务类型，请参阅本指南。