Mass balance of Devon Ice Cap, Canadian Arctic
نویسندگان
چکیده
منابع مشابه
Atmospheric deposition of current use pesticides in the Arctic: snow core records from the Devon Island Ice Cap, Nunavut, Canada.
Current use pesticides (CUPs) have been detected in the Arctic, even though there are no direct sources and their long range atmospheric transport potential is generally lower than that of legacy pesticides. Data on the deposition of CUPs in the Arctic are required to assess the impact of their global usage and emission. In this study, selected CUPs were measured in the layers of a snow pit sam...
متن کاملVariability in ice motion and dynamic discharge from Devon Ice Cap, Nunavut, Canada
Feature tracking of approximately annually separated Landsat-7 ETM+ imagery acquired from 1999 to 2010 and speckle tracking of 24-day separated RADARSAT-2 imagery acquired from 2009 to 2015 reveal that motion of the major tidewater glaciers of Devon Ice Cap is more variable than previously described. The flow of almost half (six of 14) of the outlet glaciers slowed over the observation period, ...
متن کاملApplication of Aircraft Laser Altimetry to Glacier and Ice Cap Mass Balance Studies
The Arctic ice caps and glaciers serve as important indicators of climate change and also make a small, but significant, contribution to changes in global sea level. Consequently, understanding their mass balance is of considerable interest. We are examining the current state of mass balance of the major Canadian ice caps in the greater Baffin Bay area in the context of recent climate condition...
متن کاملIndirect measurements of the mass balance of summer Arctic sea ice with an electromagnetic induction technique
In the framework of the Surface Heat Budget of the Arctic Ocean (SHEBA) study indirect, non-invasive ice mass-balance measurements were carried out at a drifting station in the northern Chukchi Sea between May and August of 1998. Ice thickness was derived from electromagnetic-induction (EM) measurements of apparent conductivity along 13 profiles (60 to 900 m long). As shown through sensitivity ...
متن کاملTaxonomic Composition, Paleoecology and Biostratigraphy of Late Cretaceous Diatoms from Devon Island, Nunavut, Canadian High Arctic
Diatoms are the most diverse group of algae, playing a major role in global carbon and silicon cycles (Kidder and Erwin, 2001; Armbrust, 2009) and inhabiting virtually any environment that provides moisture and sunlight (Mann, 1999). Thus, they offer important information to help reconstruct paleoen-vironments and clarify stratigraphic relationships. Their strati-graphic range extends down at l...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 2007
ISSN: 0260-3055,1727-5644
DOI: 10.3189/172756407782871279