Four images with four different views of the Sorraia River valley in Portugal. From top to bottom, the first image shows only the location of center-pivot irrigation areas, presenting a series of circles, half-circles, quarter-circles, and smaller circular segments. The second image shows the same shapes overlaid on a digital elevation model of the valley, along with the river's course. The third image shows the same shapes and elevation model, and also all additional water resources present in the valley. The fourth image is a satellite view of the valley, overlaid with the circular shapes. There is a text block on the top with the title and another at the bottom with the description and technical data.
#30DayMapChallenge Day 24: ONLY CIRCULAR SHAPES - DEFINING THE COURSE OF A RIVER WITH CIRCLES (AND HALF-CIRCLES, QUARTERS, AND SEGMENTS) - Center-pivot irrigation areas in the Sorraia River valley in Portugal.
Tools: #osmium, #JOSM, #QGIS, #Photoshop, #Illustrator
Files: github.com/LX-Files/30D...