Orthophoto of the Czech Republic - Jáchymov 4-5

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8位色彩深度的近乎无缝数字正射影像（orthophoto）。该栅格图像Ortofota ČR的每个像素对应地形中平面的地面尺度，东波段为0.200米，西带则为0.125米。捷克正射影像的位置精度持续提升，以平均位置误差作为精度表征指标；2019至2020年间，该误差的取值区间为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。Orthofoto ČR 以JPG图形栅格格式进行分发，每个分发单元对应SM 5 clade下2.5×2千米的地形范围。