Most people have a vague understanding of the difference between the lake and the sea due to the historically-established names of the Caspian, Aral and Dead sea, actually being lakes, and lake Baikal, which the locals proudly call the sea, shocked by his size and magnificence.
The lake is a closed depression in the earth’s continental crust, which is filled with water. Lake waters belong to the land, along with rivers, swamps, glaciers and groundwater. A leader in the parameter area in the world is the Caspian sea, there is no depth of the reservoir equal to the Baikal. He is a key reservoir of fresh water for humans.
Lake classification is a consequence of how the lake deepening. Highlights – this is a tectonic lake that was the result of discontinuous horizontal or vertical movements of the earth’s crust. Over time, the fracture gap is filled with water. Thus was formed the lake Baikal, African lakes Nyasa and Tanganyika. With the lowering part of the continental plate due to the emergence of the Caspian and Aral seas.
Lakes are formed when the rock-fall. Thus perevarivaetsya the river bed, necessarily flowing in a mountain valley. A huge number of such lakes in the Pamir and in mountains of Asia Minor. Continue reading
Finland. The Territory Of Finland. Finland – information about the country: geography, climate, flora and fauna. Map of Finland
Climate, flora and fauna
The climate of Finland is temperate, transitional to continental. The Finnish climate is much milder than you might think, given its Northern location. The average temperature 6-10 degrees higher than in similar latitudes of other places, due to its proximity to the Baltic sea and West winds from the Atlantic warmed by the Gulf stream. The warmest place is the Aland Islands (the average January temperature is -4’C). The most cold – the North-Western part of Lapland (-16’C). A large part of Finland has an average January temperature from -5’C to -7’C. Summer is cool, especially North of the Gulf of Bothnia. Night frosts occur even in July. The average temperature in July ranges from +15’C to +17’C.
The climate of Finland is characterized by a large number of windy days. Dominated by the southwest warm and humid winds blowing from the Bothnian sea and bringing the bulk of the precipitation. On the coast most precipitation falls in autumn, in the Central regions in winter. Sustainable snow cover is formed in the North in late October and lasts until the end of may, in the Central part – from late November to early may. Winters are long in Northern Lapland polar night lasts about 50 days. Continue reading
My America. Great lakes – the largest lake of the world all together contain less water than the lake – VOICES MY AMERICA
Great lakes (Fig. Great Lakes, FR. Grands Lacs) — a Grand natural system of freshwater lakes in North America, in the U.S. and Canada. Includes a number of large and medium-sized reservoirs, connected by rivers and Straits. An area of about 245,2 thousand km², the volume of water is 22.7 thousand km³.
To actually five Great lakes include the largest: Upper, Huron, Michigan, Erie and Ontario. They are associated with several medium-sized lakes, the most important of which are the St. Marys, St. Clair, Nipigon. These lakes belong to the basin of the Atlantic ocean. Stoke on the St. Lawrence river. On the formation of lake basins are significantly influenced by tectonic processes. The weight of the glacier pushed the earth’s crust, and after the glacier melted away, she slowly began the process in reverse: post-glacial uplift, which is also very noticeable in the area of the Gulf of Bothnia and Finland. The water mass of lakes formed by the melting of the glacier. North coast Great lakes South rises faster, which leads to the effect of “transfusion” water and slow the flooding of land in the South.
Developed Continue reading