Orthophoto of the Czech Republic - Jablunkov 4-9

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位色彩深度的数字化近乎无缝正射影像（orthophoto），覆盖捷克共和国全域。该栅格影像（Ortofota ČR）的单个像素在东波段（East）对应地形基准面内0.200平方米的区域，西分区（West zone）则对应0.125平方米的区域。捷克共和国正射影像的位置精度正持续优化，其以平均位置误差作为精度评价的核心指标：2019至2020年间，该误差值介于0.20至0.21米之间。2021年度捷克共和国正射影像的精度评估工作尚未完成。Orthofoto ČR采用JPG图形栅格格式进行分发，每个分发单元对应2.5×2千米的地形范围，归属于SM5分幅（SM 5 clade）。