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Catalogue Entry: Major Tornadoes
Tornadoes are columns of air that spin at a high rate of speed. They are small in scale but can be very violent. The area affected by a tornado's passage is between about 40 and... -
Catalogue Entry: Major Hurricanes that Affected Canada
« Hurricane » is one of the names given to a tropical storm whose winds revolve around a center of low pressure called the eye, at a minimum speed of 120 kilometres per hour. At... -
Catalogue Entry: Major Hailstorms
Hail is precipitation consisting of ice pellets with a diameter of 5 millimetres or more. Hailstorms can occur anywhere in Canada. The most common period when hailstorms occur... -
Catalogue Entry: Major Avalanches
Avalanches are a mass movement of snow and ice down a hillside. They occur when unique circumstances of climate and topographic factors come together. This maps shows major... -
Catalogue Entry: Major Landslides Causing Fatalities
Landslides are the downslope movements of sediment and rock. They can be found in any part of Canada, even in areas with very little relief. They happen in bedrock or in loose... -
Catalogue Entry: Wildfire Evacuations 1980-2003
Every year in Canada, thousands of people are evacuated from their homes and workplaces due to the threat of wildfire, and thousands more are put on evacuation alert. The... -
Catalogue Entry: Forest Fire Ignitions by Cause 1959 - 1999
Forest fires are an important part of the Canadian landscape. The number of fires and area burned can vary dramatically from year to year, but there are more than 8000 reported... -
Catalogue Entry: Forest Fire Hotspots, 2009
A hotspot is a mark on an infrared satellite image indicating a heat source typical of burning vegetation. A hotspot may represent one fire or be one of several hotspots... -
Catalogue Entry: Forest Fire Areas 1980 - 2003
Forest fires are an important part of the Canadian landscape. The number of fires and area burned can vary dramatically from year to year, but there are more than 8000 reported... -
Catalogue Entry: Fire Danger Rating, 2009
Fire danger rating is the process of systematically evaluating and integrating the factors that determine the ease of a fire starting and spreading, the difficulty of control,... -
Catalogue Entry: Major Floods
Floods are part of the natural hydrological cycle (the seasonal fluctuation of water levels) and occur along rivers and streams somewhere in Canada every year. Flooding is a... -
Catalogue Entry: Significant Earthquakes and Seismic Hazard
An earthquake is the rapid shaking of the Earth’s surface that follows the sudden release of energy within the Earth. They are most commonly caused by movements along the edges... -
Catalogue Entry: Surficial Materials
Most unconsolidated materials covering the Canadian landmass have glacial origins. Some sediments were entrained by glaciers and deposited at a distance without being sorted.... -
Catalogue Entry: Relief
Canada is a vast country comprised of a multitude of very different landscapes: Atlantic provinces, the Appalachians, St. Lawrence and Great Lakes lowlands, Canadian Shield, The... -
Catalogue Entry: Plant Hardiness Zones
Nine zones indicate the areas where various trees, shrubs and flowers are most likely to survive. These zones are calculated based on average climatic conditions and altitude of... -
Catalogue Entry: Shield Physiographic Regions
This map shows the location of the Shield physiographic regions. The Shield is divided into five great regions: Kazan Region, Davis Region, Hudson Region, James Region and... -
Catalogue Entry: Physiographic Regions
Canada’s landscape is very diversified and comprises several distinctive areas, called physiographic regions, each of which has its own topography and geology. The physical... -
Catalogue Entry: Borderlands - Interior Plains Physiographic Region
This map shows the location of the Interior Plains physiographic region. The Interior Plains occupy the region between the Shield on the east and the mountains of the... -
Catalogue Entry: Borderlands - Eastern Physiographic Regions
This map shows the location of the eastern physiographic regions which include the Appalachian Region and the St. Lawrence Lowlands. -
Catalogue Entry: Borderlands - Cordilleran Physiographic Region
This map shows the location of the Cordilleran physiographic region. The Cordilleran Region is divided into three large linear zones called the Eastern System, the Interior...