Search results
Results From The WOW.Com Content Network
Homer and others (2007) indicate that about 76 percent of the conterminous United States is classified as having less than 1 percent impervious cover, 11 percent with impervious cover of 1 to 10 percent, 4 percent with an estimated impervious cover of 11 to 20 percent, 4.4 percent with an estimated impervious cover of 21 to 40 percent, and ...
The majority of all lands in Canada are held by governments as public land and are known as Crown lands. About 89% of Canada's land area (8,886,356 km 2) is Crown land, which may either be federal (41%) or provincial (48%); the remaining 11% is privately owned. [1] Most federally administered land is in the Canadian territories ( Northwest ...
Surface runoff (also known as overland flow or terrestrial runoff) is the unconfined flow of water over the ground surface, in contrast to channel runoff (or stream flow ). It occurs when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate in the soil.
Canada covers 9,984,670 km 2 (3,855,100 sq mi) and a panoply of various geoclimatic regions, of which there are seven main regions. [9] Canada also encompasses vast maritime terrain, with the world's longest coastline of 243,042 kilometres (151,019 mi). [20] The physical geography of Canada is widely varied.
Crown closure, also known as canopy closure, is an integrated measure of the canopy "over a segment of the sky hemisphere above one point on the ground". [1] Crown cover is the proportion of a stand covered by the crowns of live trees. A forest stand can have a crown cover of 100% and a crown closure less than 100%.
Between 2011 and 2016, the six fastest-growing CMAs by percentage growth were located in Western Canada, with Alberta's two CMAs, Calgary and Edmonton, leading the country. Saskatoon , Regina , and Lethbridge rounded out the top five in the country and each grew by at least 10%.
Google Street View coverage. The following is a timeline for Google Street View, a technology implemented in Google Maps and Google Earth that provides ground-level interactive panoramas of cities. The service was first introduced in the United States on May 25, 2007, and initially covered only five cities: San Francisco, Las Vegas, Denver ...
Peak ground acceleration ( PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at a location. PGA is equal to the amplitude of the largest absolute acceleration recorded on an accelerogram at a site during a particular earthquake. [1] Earthquake shaking generally occurs in all three directions.