Orthophoto of the Czech Republic - Nymburk 2-4

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.本数据集为采用8位色彩深度的捷克共和国数字化近乎无缝正射影像（orthophoto）。捷克正射影像（Orthofoto ČR）的栅格图像中，单个像素对应地形中平面上的地面覆盖尺度，其中东带为0.200米，西带为0.125米。该正射影像的位置精度持续优化，以平均位置误差作为表征指标；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。捷克正射影像（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2.5×2千米的地表范围。