LYCOS RETRIEVER 
Canadian Arctic Islands: Hudson Bay
built 613 days ago
Meso-scale climate patterns in the Canadian Arctic can be largely explained by physiographic factors (Atkinson, 2000). In regions that are governed by the northwesterly flow of the atmospheric circulation from the central Arctic Ocean, coldest summer temperatures occur. For instance, the extreme arctic ecosystem of the western Queen Elizabeth Islands is a result of the persistent airflow from the central Arctic Ocean. The high mountain range across Baffin, Devon and Ellesmere Islands act as a mechanical barrier (Rae, 1951) and bring about summer temperature maximums (Edlund and Alt, 1989). In the Queen Elizabeth Islands, the inter-montane zone of Axel Heiberg and Ellesmere Islands near the Frosheim Peninsula and the Lake Hazen area, are known oases, as is the area around Alexandra Fiord on the eastern side of the island (Edlund et al. 1989; Svobodo and Freeman 1994). Other polar oases occur Island in a series of lowlands on the northeast side of Devon, Island Sverdrup (26 km2), Sparbo-Hardy (86 km2), Skogn (13 km2), and Truelove (43 km2) Similar areas occur on Bathurst Island at Polar Bear Pass, Melville Island at Sherard Bay, and Prince Patrick at Mould Bay.
Source:
This JavaScript animation shows sea ice formation and motion across Hudson's Bay and the Canadian Arctic Islands over a two-week interval during November. Note the rapid advance across Hudson's Bay. Press 'PLAY' to start the animation. Press ++ to increase the animation speed or -- to decrease it. Press 'STOP' to pause the animation and << or >> to jump forward or backward through the individual frames. Current animation speed (frame interval in milliseconds) is shown in the box at the bottom. The animation is best viewed at the highest possible speed (lowest frame interval).
Source:
In 2002, the finger of suspicion points to the Hudson Bay Company for the introduction of four or more species to the Arctic Islands. Plant seeds were probably introduced in straw used by the company for packing. Freighter canoes arriving from Quebec were packed by placing them on a large piece of sackcloth or hessian, putting straw on the material so the sides of the canoes would be protected, and then wrapping them in the material for shipping (B. Rose, personal communication 2002). There was a significant amount of straw between the boat and the cloth, and seeds may have been introduced in the straw. For the distribution of two species of low Arctic dandelions, the maps in the database indicate that they have been collected at the sites of former Hudson Bay posts.
Source:
The objective of this project is to study long term temporal trends of persistent organic pollutants and mercury in ringed seals from the Canadian arctic. The project rationale is that there are previous results for POPs and mercury in ringed seal tissues for many locations. Furthermore there may be regional differences in temporal trends due to geographical differences in POPs and mercury in marine waters and food webs within the Canadian arctic. It is relatively cost efficient to return to the same locations for additional samples using the same sampling and anlaysis protocols are were used in previous studies (see AMAP and Canadian Assessment Reports). Samples are being collected with the help of hunters and trappers organizations in each community. During 2000-01 samples are being collected at Resolute, Arctic Bay and Pond Inlet.
Source:
MORE ABOUT
Hudson Bay