📍 Dune field near Oyyl, Kazakhstan Fluvial floodplains are one common source of sand, so dune fields often form immediately downwind of them. Floodplains and dune fields often occupy regions known as “sinks”—topographic low areas where sediment is deposited. The sink shown here sits approximately 90 meters (300 feet) below the elevation of the surrounding steppe. Although sand dunes dominate the landscape, vegetation adds a variety of small, darker-colored patches within the dune. The presence of vegetation may indicate that some dunes are in the process of becoming anchored in place. 📸Astronaut photograph taken from the @ISS on June 15, 2022 #DuneField #Kazakhstan #EarthFromSpace #Floodplain _________ Image Description: An aerial view of a dune field taken from space. The dune field is a light brown, irregular shape with round edges. It is surrounded by a darker brown floodplain. Dark spots toward the bottom of the dune field are clusters of vegetation.