Orthophoto of the Czech Republic - Žatec 4-0

Digital seemingly seamless orthophoto of the Czech Republic in a 8-bit color scale. The pixel of the raster image Ortofota ČR displays 0.200 m (band „East), resp. 0.125 m ("West" zone) of the area in the middle plane of the terrain. The orthophoto of the Czech Republic is constantly improving its positional accuracy characterized by a mean positional error, this error ranged from 0.20 to 0.21 m in the years 2019 - 2020. The evaluation of the accuracy of the orthophoto of the Czech Republic in 2021 has not yet been completed. Orthofoto ČR is distributed in graphic raster formats JPG in dispensing units with a size showing 2.5 x 2 km of terrain in the SM 5 clade.本数据集为捷克共和国近乎无缝的数字化8位色彩正射影像（Orthophoto）。其栅格图像（Raster Image）Ortofota ČR的单个像素，在地形中平面上对应0.200平方米的地表面积（对应东波段），西区波段则对应0.125平方米的地表面积。捷克正射影像的定位精度持续提升，其精度以平均定位误差作为核心表征指标；2019至2020年间，该误差的取值范围为0.20至0.21米。2021年捷克正射影像的精度评估工作尚未完成。Ortofota ČR以JPG图形栅格格式进行分发，每个分发单元对应2.5×2平方千米的地表区域，采用SM 5分幅规格。