Download e-book for iPad: Atlas of Alberta Lakes by Patricia Mitchell, Ellie E. Prepas

By Patricia Mitchell, Ellie E. Prepas

ISBN-10: 0888642148

ISBN-13: 9780888642141

ISBN-10: 0888642156

ISBN-13: 9780888642158

ISBN-10: 1417592907

ISBN-13: 9781417592906

The Atlas of Alberta Lakes specializes in a hundred of Alberta's best, most well-liked or so much studied lakes. It offers the entire details lake clients, scientists and lake managers may wish. an in depth advent explains the medical phrases and ideas utilized in every one bankruptcy and encompasses a full-page colour map displaying the positioning of the lakes in accordance with drainage basins.

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Example text

Streams from neighbouring drainage basins may be diverted into a lake; for example, Kent Creek is diverted into Lower Kananaskis Lake. Water may be pumped into a lake, such as the diversion from the Blindman River to Gull Lake and from the North Saskatchewan River to Lac St. Cyr. When a weir is built on the outlet of a lake, even if it is only 1 m high, the outflowing water usually falls in a single cascade, and upstream fish movement is blocked. This is a particular problem in Alberta east of the foothills where the main sport fish is northern pike—a species not renowned for its jumping ability!

These sediment particles may originate within the lake, wash in from The volume of water in a lake changes in response to the quantity of water that enters and leaves it over a given period of time. An annual water balance for a particular lake is calculated by adding all of the inflows over a year, and subtracting the outflows, including evaporation. If the water level in the lake at the end of the year is different from that at the beginning of the year, the change in volume of water that this fluctuation represents must be included in the annual water balance.

Evidence from core studies suggests the lake has gone through periods of both high and low water levels, depending on the climate at the time. Pollen analysis from other lakes, including Moore, shows that the climate was warmer and lake levels were generally lower between 9 000 and 4 000 years ago than during the last 4 000 years. The morphology of a lake has a great influence on its ecological characteristics. A description of the lake's size, shape, depth and volume is fundamental information for the lake scientist, and is of interest to anglers and other lake users as well.

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Atlas of Alberta Lakes by Patricia Mitchell, Ellie E. Prepas


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