Permalink: https://www.media.greenpeace.org/archive/Iceberg-in-Greenland-27MZIFLHX16Y.htmlConceptually similarIceberg in GreenlandGP01T6DCompleted★★★★Shadow of MY Arctic Sunrise in GreenlandGP01T6SCompleted★★★★Iceberg in GreenlandGP01T6RCompleted★★★★★★★Iceberg in GreenlandGP01ZX0Completed★★★★★★★Iceberg in GreenlandGP01ZX1Completed★★★★Iceberg in GreenlandGP01T6BCompleted★★★★★★★Iceberg in GreenlandGP01T6CCompleted★★★★★★Iceberg in GreenlandGP01T7BCompleted★★★★★★Humboldt Glacier n GreenlandGP01T60Completed★★★★View AllGP01T5FIceberg in GreenlandA huge iceberg rises 36 meters from the waters of Kane Basin. It is likely that this unusual feature started life as an englacial channel within the Humboldt glacier that it has calved from. Englacial channels carry melt-water from the surface of the glacier down to the bed-rock underneath. Because icebergs turn in the water the feature may also have been part of a moulin -a vertical channel draining into the glacier. Glaciologists sometimes refer to these holes within glaciers as "Rothlisburger channels". Rothlisburger proposed a theory of how an equilibrium develops between the external forces of the enclosing glacial structure and the internal pressure, (flow and frictional melt rate) of the water inside. Some of these properties appear to be evident in this iceberg, though the channel may have since been widened and enlarged by the subsequent tidal and surface melting and erosion. This berg was observed to drift to and fro across Kane Basin for some weeks, at different times, grounding on the sea bed, on both the North and South sides.Locations:Greenland-Kane Basin-North America-Western GreenlandDate:2 Aug, 2009Credit:© Nick Cobbing / GreenpeaceLatitude:79°57'21"NMaximum size:5616px X 3744pxLongitude64°51'7"WKeywords:Beauty-Climate (campaign title)-Copy space-Day-Glacier melt-Glaciers-Ice-Icebergs-Icescapes-KWCI (GPI)-Landscapes-Nature-Outdoors-ScenicShoot:Glaciology Research in Western GreenlandIn summer 2009, the MY Arctic Sunrise sails to the Arctic to document the dire effects climate change has on one of the most fragile environments in the world. Independent scientists use the ship, helicopter, boats and assistance of the crew, to collect data and research the impacts of climate change. During this first section of the three-part tour, scientists conduct important glaciology research on Petermann and Humboldt glaciers in Western Greenland.Related Collections:Arctic Tour 2009 (Photo & Videos)