3197 x 4169 px | 27,1 x 35,3 cm | 10,7 x 13,9 inches | 300dpi
Aufnahmedatum:
24. März 2021
Weitere Informationen:
Where two rivers meet without mixing much, the colorful contrast can be striking. The confluence of the Back and Hayes rivers in Nunavut, Canada, is such a place. The colorful confluence and surrounding landscape in the eastern Canadian Arctic are visible in this image acquired on June 30, 2014, with the Operational Land Imager (OLI) on Landsat 8. The relatively dark blue-green water of the Back River contrasts sharply with the light turquoise of the Hayes. The Back River approaches the confluence from the southwest, flowing for nearly 1, 000 kilometers (600 miles) from near the Great Slave Lake to its outlet at Chantrey Inlet. It traverses the so-called Barren Grounds—a mostly flat, treeless plain covered with grasses, mosses, lichen, and the occasional granite outcrop. Studies of the Back River corridor have noted that the river is typically clear, with sediment and occasionally algae on the bottom. The Hayes River approaches from the opposite direction, flowing for more than 300 kilometers (200 miles) from an unnamed lake to its junction with the Back River. Research has shown that the Hayes River valley contains an abundance of marine silts and clays, which have been eroded to form a badlands-like landscape. The river water appears turbid—possibly rich with sediment that would give it a milky color.
