Mosaic Aerial Orthophotography PNOA, year 2004

Mosaic of orthophotos of the PNOA (National Plan of Aerial Orthophotography) of the year 2004, in ECW and JPEG2000 format. The geodetic reference system is ETRS89, UTM projection at spindle 30. Result of composing a mosaic with the orthophotos corresponding to each sheet 5000. The tile is accompanied by a metadata file (xml). The date of taking the orthophotos between 04-07 and 28-07 of 2004.本数据集为2004年PNOA（国家航空正射影像计划，National Plan of Aerial Orthophotography）的航空正射影像镶嵌图，文件格式涵盖ECW与JPEG2000。其采用的大地参考基准为ETRS89，投影方式为UTM 30号带投影。该镶嵌数据集由各1:5000比例尺分幅对应的正射影像拼接生成，每个图块均附带XML格式元数据文件。本次正射影像的拍摄时段为2004年7月4日至7月28日。