Sediments in Arctic sea ice ...

• Main Authors: Nürnberg, Dirk, Wollenburg, Ingo, Dethleff, Dirk, Eicken, Hajo, Kassens, Heidemarie, Letzig, Tom, Reimnitz, Erk, Thiede, Jörn
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1994
• Subjects: Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; albedo; Arctic Ocean; laptev; Laptev Sea; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.728655; https://doi.pangaea.de/10.1594/PANGAEA.728655

Despite the Arctic sea ice cover's recognized sensitivity to environmental change, the role of sediment inclusions in lowering ice albedo and affecting ice ablation is poorly understood. Sea ice sediment inclusions were studied in the central Arctic Ocean during the Arctic 91 expedition and in the Laptev Sea (East Siberian Arctic Region Expedition 1992). Results from these investigations are here combined with previous studies performed in major areas of ice ablation and the southern central Arctic Ocean. This study documents the regional distribution and composition of particle-laden ice, investigates and evaluates processes by which sediment is incorporated into the ice cover, and identifies transport paths and probable depositional centers for the released sediment.In April 1992, sea ice in the Laptev Sea was relatively clean. The sediment occasionally observed was distributed diffusely over the entire ice column, forming turbid ice. Observations indicate that frazil and anchor ice formation occurring in ... : Supplement to: Nürnberg, Dirk; Wollenburg, Ingo; Dethleff, Dirk; Eicken, Hajo; Kassens, Heidemarie; Letzig, Tom; Reimnitz, Erk; Thiede, Jörn (1994): Sediments in Arctic sea ice: Implications for entrainment, transport and release. Marine Geology, 119(3-4), 185-214 ...