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 variety of … Read more Oceans

Interrelationship Of Disaster And Development

 Debate regarding the relationship between socioeconomic development and natural disasters remains at the fore of global discussions, as the potential risk from climate extremes and uncertainty pose an increasing threat to developmental prospects. This study reviews statistical investigations of disaster and development linkages, across topics of macroeconomic growth, public governance and others to identify … Read more Interrelationship Of Disaster And Development

Oceans Currents

 Oceans: Currents Ocean current, stream made up of horizontal and vertical components of the circulation system of ocean waters that is produced by gravity, wind friction, and water density variation in different parts of the ocean. Ocean currents are similar to winds in the atmosphere in that they transfer significant amounts of heat from … Read more Oceans Currents

Social And Environmental Impacts Of Disasters

 Social impacts of disasters Natural Disasters can cause social impacts that are similar in different types of communities such as the need for rebuilding, urgent access to health care, simply accessing shelter during/after a storm, availability to food and water, turning towards the government for aid or towards religious organization for aid and moral … Read more Social And Environmental Impacts Of Disasters

Origin Of The Monsoon

 Origin of the Monsoon:   Classcial Theories: Halley’s Thermal concept: Indian monsoon is because of contrast between Indian Subcontinent and adjoining Indian Ocean. Halley’s theory, suggested in 1686, considers the summer monsoon to be a regional phenomenon. Aerological concept: This was suggested by R. Scherhag in 1948. According to this theory, monsoon circulation develops … Read more Origin Of The Monsoon

Salinity Of Oceans

 Salinity is defined as the ratio between the weight of the dissolved materials and the weight of the sample sea water. Generally, salinity is defined as ‘the total amount of solid material in grams contained in one kilogram of sea water and is expressed as part per thousand (%o) e.g., 30%o (means 30 grams … Read more Salinity Of Oceans

Water Resources

  Rainfall: With an average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. At one extreme are areas like Cherrapunji, in the northeast, which is drenched each year with 11,000 mm of rainfall, and at the other extreme are places like Jaisalmer, in the west, which receives barely … Read more Water Resources

Forest Of India

 Forests – Natural Vegetation of India   Table of Contents 1 Forests – Natural Vegetation of India 2 Classification of Natural Vegetation of India 3 Moist Tropical Forests 3.1 Tropical Wet Evergreen Forests or Rain Forests 3.2 Tropical Semi-Evergreen Forests 3.3 Tropical Moist Deciduous Forests 3.4 Littoral and Swamp Forests 4 Dry Tropical Forests 4.1 Tropical Dry Evergreen Forests 4.1.1 Casuarina plantation 4.2 Tropical Dry … Read more Forest Of India