NC Orthoimagery 2020-2023 - Analysis

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). 2020-2023 project areas 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. This service contains 4-band (RGB+NIR) imagery collected by the NC Orthoimagery Program for any given area of North Carolina between 2020 and 2023. The imagery has a pixel resolution of 6 inches with an RMSE of 1.0 ft X and Y. The compression method (DEFLATE) used for this imagery maintains the individual pixel values so that this data is suitable for analyses. This data is also available as WCS and WMS services. For those not requiring support for analysis, the NC Orthoimagery 2020-2023 image service may offer better appearance and performance. To find specific dates the images were captured use the imagery dates app or download the data. 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，否则将获取到像素化的正射影像（orthoimagery）。请通过瓦片或县域镶嵌图（2010年-当前年份）进行影像下载。 本数据集覆盖2020-2023年项目区域。北卡罗来纳州正射影像项目（NC Orthoimagery Program）每四年为一个采集周期，生成6英寸（15厘米）分辨率的正射影像。该项目每年飞行覆盖该州约四分之一的区域，以构建流式影像服务、5000英尺×5000英尺瓦片，以及压缩单文件县域镶嵌图。 自2020年起，该项目新增采集第四波段——近红外（near infrared）波段，将其与红、绿、蓝三个原有波段结合后，可为影像探索与分析提供全新的应用可能。 本服务包含北卡罗来纳州2020年至2023年间任意区域的、由该项目采集的4波段（RGB+近红外）影像。该影像像素分辨率为6英寸，X、Y方向的均方根误差（RMSE）为1.0英尺。 本影像采用的DEFLATE压缩算法可完整保留单个像素的数值信息，因此该数据集适用于各类定量分析工作。该数据同时可通过WCS与WMS服务获取。对于无需进行分析的用户，北卡罗来纳州正射影像2020-2023影像服务可提供更优的视觉呈现效果与加载性能。 若需查询影像拍摄的具体日期，可使用影像日期应用程序或下载相关数据。 查看最新影像：本州任意位置的最新影像可通过多种网络服务获取。这些服务支持通用影像查看与栅格分析，提供包括Esri协议（如REST、SOAP）及OGC协议（如WMS、WFS、WCS）在内的多种调用方式。可通过搜索"正射影像"与"最新"关键词查找此类服务。如需选择最适配的服务，请参阅本指南。