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in dollars) | total fatalities = 5〔Calgary Herald.'The flood's tragic toll:Remembering the five lives lost'. June 14, 2014. Calgary Herald.http://www.calgaryherald.com/news/alberta-floods-2013/flood+tragic+toll+Remembering+five+lives+lost/9937864/story.html. Retrieved June 14, 2014〕 | areas affected = Southern and central Alberta:〔 }} In the days leading up to June 19, 2013, Alberta, Canada, experienced heavy rainfall that triggered catastrophic flooding described by the provincial government as the worst in Alberta's history. Areas along the Bow, Elbow, Highwood, Red Deer, Sheep, Little Bow, and South Saskatchewan rivers and their tributaries were particularly affected. A total of 32 states of local emergency were declared and 28 emergency operations centres were activated as water levels rose and numerous communities were placed under evacuation orders. Five people were confirmed dead as a direct result of the flooding and over 100,000 people were displaced throughout the region. Some 2,200 Canadian Forces (CF) troops were deployed to help in flooded areas. Total damage estimates exceeded C$5 billion and in terms of insurable damages, is the costliest disaster in Canadian history at $1.7 billion. Receding waters gave way to a mammoth cleanup of affected areas, aided by a spontaneous volunteer campaign in which many home owners were assisted by complete strangers. ==Meteorology== Situated east of the Canadian Rockies, southern Alberta is a semi-arid region that does not usually receive high amounts of rainfall. A high-pressure system in northern Alberta blocked the passage to a low-pressure area to the south. This blocked circulation and easterly winds pumped humidity on the rising slopes of the Rocky Mountains foothills, causing heavy rain into the province with rainfall amounts of over to fall in less than two days in many regions of the province, particularly west and southwest of Calgary. In Canmore, a town in Alberta's Rockies, over fell in just 36 hours, nearly half of the town's annual average rainfall. In the town of High River, rainfall amounts at one weather station recorded 325 millimeteres (12.8 in) in less than 48 hours. The rain falling on already saturated ground, coupled with the steep watershed and heavy snow loads remaining in the front ranges of the Rocky Mountains, resulted in a rapid increase in the size and flow of several rivers. At the peak of the flooding, the Bow and Elbow rivers were flowing through Calgary at three times their peak levels from a 2005 flood that caused C$400 million in damages.〔 Within 48 hours, by 8 a.m. MDT on June 21, the flow rate on the Bow River had reached 1,458 cubic metres (51,489 cubic ft.) per second (m3/s), five times its normal rate for this time of the year. The Elbow and Highwood Rivers reached flow rates of 544 m3/s (inside Calgary) and 734 m3/s respectively, ten times their averages for this time of year. According to data tracked by Alberta's Ministry of Environment and Sustainable Resource Development,〔This June 18, 2013, story covered concerns about the typical "low flow in Alberta s rivers, particularly the Old Man, Bow and Red Deer rivers during the summer."〕〔Premier Redford created the Environment and Sustainable Resource Development (ESRB) formerly known as the Ministry of Environment and Water on May 8, 2012.〕 "in the space of a day or two, the flows of the three rivers rocketed up five to 10 times their normal rates." 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「2013 Alberta floods」の詳細全文を読む スポンサード リンク
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