LYCOS RETRIEVER 
Canadian Arctic Islands
built 640 days ago
The instrumentation was installed in June 1988 and was initially maintained by the Arctic Adaptation Division Canadian Climate Centre, Atmospheric Environment Service (CCC/AES) with field support by Geological Survey of Canada (GSC). It consists of a Campbell Scientific CR10 micrologger with meteorological sensors for air temperature an relative humidity, wind speed and direction, and solar incoming radiation. It ... supports a snow depth sensor, an experimental vegetation temperature and four ground temperatures. It is powered by a 25-AH, 12-volt gel cell (a second gel cell was added in 1989) charged by a 10-watt solar panel. Hourly and Daily sampling was carried out. Data have been quality controlled and fully documented (see documentation files accompanying the data).
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The Christopher Formation (Heywood, 1957) is an Aptian-Albian, shale-dominated, marine unit found throughout the Canadian Arctic Islands, with thicknesses from a few hundred to more than 1,000 m (Embry, 1985, 1991). At Dragon Mountain the formation is about 612 m thick (Fig. 1.3). A glauconitic or tuffaceous sandstone unit recognized near the middle of the formation over much of its area was used by Embry (1985) to subdivide formally the Christopher Formation into the Invincible Point Member (IPMbr, which includes the sandstone) and the overlying Macdougall Point Member (MPMbr). The ammonite-bearing horizon discussed here occurs 295 m above the base of the formation and about 14 m above the tuffaceous sandstones marking the top of the IPMbr.
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Estrada, S., Henjes-Kunst, F. & Piepjohn, K. (2005): Multiphase Cretaceous to early Tertiary magmatism in nothern Ellesmer Island (Canadian Arctic) related to the opening of the Arctic Ocean. - In: 22. Internationale Polartagung der Deutschen Gesellschaft für Polarforschung, Zusammenfassungen der Tagungsbeiträge, Terra Nostra 2005/3: 48-49.
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Wolf pups on the Arctic islands face the hardships of nomadic life much earlier than temperate region wolves since they leave the summer den sites or homesites by mid-July. After that time the adults set a gruelling pace for the pups as they begin travelling with the pack.
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PCBs in the fat of polar bears have been studied relatively thoroughly in the Canadian Arctic. Here, values are less than 10 ug/g (Norstrom et al. 1988). On Svalbard, the levels range from 2.9 to 90 ug/g wet weight (Norheim, Skaare, and Wiig 1992). These values are quite high compared to the U.S. Food and Drug Administration (FDA) recommended values to protect humans from consumption of contaminated food (Agency for Toxic Substance Disease Registry 1993).
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Canadian Arctic Islands