Cyclones

 Cyclones: Types and Mechanism Cyclone is a system of low atmospheric pressure in which the barometric gradient is steep. Cyclones represent circular fluid motion rotating in the same direction as the Earth. This means that the inward spiralling winds in a cyclone rotate anticlockwise in the Northern Hemisphere and clockwise in the Southern … Read more Cyclones

Approaches To Disaster Risk Reductions

 Approaches to Disaster Risk Reductions Disaster management meant different for different players. For many decades prior to Major catastrophes like Orissa Super Cyclone (1999), Gujarat Earth quake & West Bengal Floods (2000) disaster management for respective state governments was to emphasis on early warning, evacuation, post disaster compensation, rehabilitation, shelter construction, i.e., basically … Read more Approaches To Disaster Risk Reductions

Population

 Population : Regional Pattern of Growth India’s population is young. Its birth and death rates are both near the global average. More than half the population is under age 30 and less than one-fourth is age 45 or older. Life expectancy is about 68 for men and 70 for women. A population explosion … Read more Population

Oceans Tides

 Oceans  tides An ocean tide refers to the cyclic rise and fall of seawater. Tides are caused by slight variations in gravitational attraction between the Earth and the moon and the Sun in geometric relationship with locations on the Earth’s surface. Tides are periodic primarily because of the cyclical influence of the Earth’s … Read more Oceans Tides

Oceans

 Oceans – Bottom Relief Four major divisions can easily be identified on the ocean floor: The continental shelf, the continental slope, the continental rise, the abyssal plain. Besides these, there are many associated features—ridges, hills, seamounts, guyots, trenches, canyons, sleeps, fracture zones, island arcs, atolls, coral reefs, submerged volcanoes and sea-scarps. This great … Read more Oceans

El Nino

 El Nino El Niño is the name given to the occasional development of warm ocean surface waters along the coast of Ecuador and Peru. When this warming occurs the usual upwelling of cold, nutrient rich deep ocean water is significantly reduced. El Niño normally occurs around Christmas and usually lasts for a few weeks to a few … Read more El Nino

Glaciers

 Glaciers Glaciers are made up of fallen snow that, over many years, compresses into large, thickened ice masses. Glaciers form when snow remains in one location long enough to transform into ice. What makes glaciers unique is their ability to move. Due to sheer mass, glaciers flow like very slow rivers. Some glaciers … Read more Glaciers