latvia_open_data_portal_04_overlap Published September 3, 2019 at 1024 × 768 in National Open LiDAR Strategy of Latvia humiliates Germany, Austria, and other European “Closed Data” States ← Previous Next → flight line overlap: blue – 1 flight line, aqua – 2 flight lines, yellow – 3 flight lines, orange – 4 flight lines, red – 5 or more flight lines