Turquoise Ice Arch
July 27, 2007
This dramatic, turquoise ice arch was photographed in Røde Fjord, Greenland, on September 15, 2006. The interior height of this arch was a bit over ten meters (~33 ft) tall. While sandstone arches are common in the American Southwest and elsewhere too, icebergs also often form shorter-lived arches. The pleasing blue/green coloration is essentially caused by myriad ice particles more effectively absorbing the longer wavelengths of light (reds and yellows) than the shorter (blue and green) wavelengths.