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 months. Sometimes … Read more

Cyclones: Types and Mechanism

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 Hemisphere of … Read more

Census of India : Economic and Social features

Census of India : Economic and Social features Rural and urban population Altogether, 833.5 million persons live in rural area as per Census 2011, which was more than two-third of the total population, while 377.1 million persons live in urban areas. Urban proportion has gone up from 17.3 per cent in 1951 to 31.2 per … Read more

Distribution of major natural resources of World-Water, Soils, Forests in reference to South and South-East Asia

Distribution of major natural resources of World-Water, Soils,  Forests in reference to South and South-East Asia     Distribution of key natural resources across the world (including South Asia and the Indian subcontinent) Natural resources are highly valued because human beings are dependent on them to fulfil their fundamental needs that changes with time. While … Read more

FUNCTIONAL CLASSIFICATION OF TOWN AND PROBLEM OF HUMAN SETTLEMENT

 The definition of function varies across the disciplines. In political science it refers to duties, in mathematics it means the relationship between two variables and in geography it is synonymous to occupation. Geographers have classified towns on the basis of their site, situation, size, rank, location and relative elevation. Functional classification of towns attempts to categorize … Read more

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 rotation. … Read more

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 reactive.  And, NGOs, who consider they … Read more

Climatic Regions Of India

 : Koeppen’s Classification   Climate Type Climatic Region Annual Rainfall in the Region Amw(Monsoon type with shorter dry winter season) Western coastal region, south of Mumbai over 300 cm As(Monsoon type with dry season in high sun period) Coromandel coast = Coastal Tamil Nadu and adjoining areas of Andhra Pradesh 75 – 100 cm [wet … Read more

Age Structure, Sex Ratio And Rural Urban Composition Of India

   Age structure, sex ratio and Rural-Urban composition of India   Rural-Urban Composition:   For the first time since Independence, the absolute increase in population is more in urban areas that in rural areas Rural Population in India: 68.84% Urban Population in India: 31.16% Level of urbanization increased from 27.81% in 2001 Census to … Read more

Current Geopolitical Problems

 :- Across the globe, governments and institutions face increasing challenges to their legitimacy and authority. All forms of government in every region will face increasing tensions both domestic and foreign. In the short-term, these global trends will increase the threat posed by all types of terrorism, and the ability for asymmetrically-powerful state and non-state … Read more