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Prelims 2017 Current Affairs- Geographical News
GEOGRAPHICAL NEWS

1. Majuli Island
Geographical Location :The Majuli Island is formed by the Brahmaputra river system. It is the wor More..





Geography - Geomorphology - Earth Movements – Endogenetic Movements
Earth Movements

Our earth is undergoing deformations imperceptibly [so slight, gradual, or subtle as not to be perceived] but continuously.

These deformations are c More..





Geography - Geomorphology - Continental Drift Theory – Tectonics
Continental Drift Theory – Tectonics

Tectonics == Large scale movement of lithospheric plates.
Introduction


During WW More..





Geography - Geomorphology - Continent – Ocean Convergence
In this post we will study about Continent – Ocean Convergence. Understanding Continent – Ocean Convergence is important to understand the Formation of The Rockies, the Formation of the Andes and other similar fold mountain systems.

We More..





Geography - Geomorphology - Continent – Continent Convergence
In this post we will study about Continent – Continent Convergence. Understanding Continent – Continent Convergence is important to understand the Formation of the Himalayas, the Alps, the Urals and the Atlas mountains.

We have studied More..





Geography - Geomorphology - Earth’s Interior – Earthquake Waves – Shadow Zone
INTERIOR OF THE EARTH

The configuration of the surface of the earth is largely a product of the processes operating in the interior of the earth.

Exogenic as well as endogenic proc More..





Geography - Geomorphology - Weathering – Exogenetic Earth Movements
Exogenetic Movements

Exogenic (Exogenetic) processes are a direct result of stress induced in earth materials due to various forces that come into existence due to sun’s heat.
More..





Geography - Geomorphology - Plate Tectonics – Indian Plate Movement
Plate Tectonics

n 1967, McKenzie and Parker suggested the theory of plate tectonics. The theory was later outlined by Morgan in 1968.

By then, the ‘continental drif More..





Geography India - National Forest

Introduction

  • According to the India State of Forest Report 2011, the actual forest cover in India is 21.05%, of which, 12.29% are dense forests and 8.75% are open forests.
  • More..





Geography - Climatology - Latitudes & Longitudes | Standard Time
Latitudes and Longitudes 
  • Latitudes and Longitudes are imaginary lines used to determine the location of a place on earth.
  • The shape More..





Geography - Climatology - Atmosphere: Role, Structure & Composition

Atmosphere

  • Our planet earth is enveloped by a deep blanket of gases extending several thousands of kilometres above its surface. This gaseous cover of the earth is known as the More..





Geography - Climatology - Polar Vortex & Ozone Hole (Ozone Depletion)
Polar Vortex & Ozone Hole (Ozone Depletion)

Polar Vortex

  • In the previous posts, we have studied about tropical cyclones and extra trop More..





Geography - Climatology - Rainforest Climate (Tropical Evergreen Climate)
Rainforest Climate (Tropical Evergreen Climate)



Geography - Geomorphology - See Floor Spreading – Paleomagnetism
Convectional Current Theory – Tectonics

Arthur Holmes in 1930s discussed the possibility of convection currents in the mantle.

 These currents are generated du More..





Geography India - Natural Vegetation
Natural vegetation refers to a plant community that has been left undisturbed over a long period of time.

Classification of Vegetation

Based on climatic conditions, forests are div More..





Geography India - Wildlife
Introduction

India is one of the 12th mega bio-diversity countries of the world.

With approximately 47,000 plant species, India ranks 4th in Asia and 10th in the world (in terms of More..





Geography India - Soil
Introduction

Soil is very important and a valuable resource for every human being.

Soil is the mixture of rock debris and organic materials, which develop on the earth’s surface. More..





Geography India - Introduction
Geography India - Introduction

India - Location

India is located entirely in the northern hemisphere; specifically in the south-central part of the continent of Asia.

More..





Geography India - Physical Aspect
Geography India - Physical Aspect

India - Evolution

As per the estimation, the earth is approximately 460 million years old.

The endogenic and exogenic forces played a significant role in giving shape to v More..





Geography India - Drainage System
Geography India - Drainage System

Introduction

The flow of water through well-defined channels is known as drainage and the network of such channels is known as drainage system.

The drainage pattern of an More..





Geography - Climatology - Monsoon Climate | Monsoon Forests
Monsoon Climate | Monsoon Forests



Geography - Geomorphology - Earth’s Layers – Earth’s Composition
Earth’s Layers

Earth’s layers are identified by studying various direct and indirect sources [we studied this in previous post: Earth’s Interior – Earthquake Waves – Shadow Zone]. More..





Geography - Geomorphology - Ocean – Ocean Convergence
In this post we will study about Ocean – Ocean Convergence. Understanding Ocean – Ocean Convergence helps us in understanding the formation of Japanese Island Arc, formation of Indonesian Archipelago, formation of Philippine Island Arc and formation More..





Geography - Geomorphology - Types of Mountains – Classification of Mountains
In this post we will study about different Types of Mountains which are classified based on various factors.

This post will be helpful to answer location based questions.

More..





Geography - Geomorphology - Divergent Boundary – African Rift System
Interaction of Plates
  • Major geomorphological features such as fold mountains, block mountains, mid-oceanic ridges, trenches, volcanism, earthquakes et More..





Geography - Climatology - Savanna Climate (Tropical Wet Dry Climate)
Savanna Climate (Tropical Wet Dry Climate)

Savanna Climate or Tropical Wet and Dry Climate or Sudan Climate More..






Geography - Climatology - Motions of the earth: Rotation and Revolution

Motions of the earth: Rotation and Revolution

  • Primarily two motions: Rotation and Revolution.

More..






Geography - Climatology - Temperature Distribution on Earth & Heat Budget
Temperature Distribution on Earth & Heat Budget

Temperature Distribution on Earth

  • Sun is the ultimate source More..





Geography - Climatology - Condensation | Forms of Condensation: Dew, Fog, Frost, Mist | Types of Clouds
Condensation | Forms of Condensation: Dew, Fog, Frost, Mist | Types of Clouds

Evaporation

  • Evaporation is a process by which water is transformed from More..





Geography - Climatology - Temperate Cyclones (Mid Latitude Cyclone or Extra tropical cyclones or Frontal Cyclones)
Temperate Cyclones (Mid Latitude Cyclone or Extra tropical cyclones or Frontal Cyclones)

The systems developing in the mid and high latitude (35° latitude and 65° latitude in both hemispheres), beyond the tropics More..





Geography - Climatology - Comparison of Tropical Cyclones & Temperate Cyclones
Comparison of Tropical Cyclones & Temperate Cyclones



Geography - Climatology - China Type Climate, Gulf Type Climate & Natal Type Climate
China Type Climate, Gulf Type Climate & Natal Type Climate

Warm Temperate Eastern Margin Climate






Geography - Geomorphology - Fold Mountains – Block Mountains

In this post we will study about Fold Mountains and Block Mountains. For Classification of Mountains refer my previous post

  • Types of Mountains – Classification of Mountains

More..






Geography - Geomorphology - Himalayas – Andes – Rockies – Urals – Drakensberg
Important mountain ranges
  • The highest known mountain on any planet in the Solar System is Olympus Mons on Mars ( More..





Geography - Climatology - British Type Climate (European Maritime Climate)
British Type Climate (European Maritime Climate)

British Type Climate

  • Westerlies come all the year round.
  • There is a tend More..





Geography - Climatology - Desert Climate | Hot Deserts & Mid-Latitude Deserts
Desert Climate | Hot Deserts & Mid-Latitude Deserts

Desert Climate

  • Deserts are regions where evaporation exceeds precip More..





Geography - Climatology - Steppe Climate (Temperate Grassland Climate)
Steppe Climate (Temperate Grassland Climate)

Steppe Climate or Temperate Continental Cli More..






Geography - Climatology - Mediterranean Climate (Western Margin Climate)
Mediterranean Climate (Western Margin Climate)

Mediterranean Climate or War More..






Geography - Climatology - Adiabatic Lapse Rate | Latent Heat of Condensation
Adiabatic Lapse Rate | Latent Heat of Condensation

Condensation of water vapour, thunderstorms, cyclonic and anticyclonic conditions etc. depend on Adiabatic Lapse Rate. Adiabatic Lapse Rate More..






Geography - Climatology - Atmospheric Pressure Belts and Wind Systems
Atmospheric Pressure Belts and Wind Systems

Pressure Systems

  • Air expands when heated and gets compressed when cooled. This results in variations in the More..





Geography - Climatology - Factors Affecting Wind movement | Coriolis Force
Factors Affecting Wind movement | Coriolis Force

Factors affecting Wind Movement

  • Wind == horizontal movement o More..





Geography - Climatology - Types of Winds: Permanent, Secondary & Local Winds
Types of Winds: Permanent, Secondary & Local Winds

General circulation of the atmosphere

  • The pattern of planetary winds depend More..





Geography - Climatology - Precipitation: Types of Precipitation | Types of Rainfall
Precipitation: Types of Precipitation | Types of Rainfall

Precipitation

  • The process of continuous condensation in free air helps the condensed particles More..





Geography - Climatology - Thunderstorm | Thunder & Lightning | Tornado
Thunderstorm | Thunder & Lightning | Tornado

Thunderstorm

  • Thunderstorms and tornadoes are severe local storms. They are of sho More..





Geography - Climatology - Tropical Cyclones: Favorable Conditions for Formation, Stages of Formation & Structure
Tropical Cyclones: Favorable Conditions for Formation, Stages of Formation & Structure

Tropical Cyclones

  • Tropical cyclones are violent st More..





Geography - Climatology - Tundra Climate (Polar Climate or Arctic Climate)
Tundra Climate (Polar Climate or Arctic Climate)

Tundra Climate or Polar Climate or Arctic Climate

More..






Geography - Climatology - Humidity: Relative Humidity & Dew point
Humidity: Relative Humidity & Dew point

Understanding these concepts is important to understand Forms of Condensation and Precipitation which will be discussed in future posts.



Geography - Climatology - Storm Surge | Naming of Cyclones | Cyclones in Arabian Sea, Bay of Bengal
Storm Surge | Naming of Cyclones | Cyclones in Arabian Sea, Bay of Bengal

What is a Storm Surge?

  • Storm Surge is an abnormal rise of sea level as More..





Geography - Climatology - Taiga Climate | Coniferous Forests & Lumbering
Taiga Climate | Coniferous Forests & Lumbering

Taiga Climate or Boreal Climate



Geography - Climatology - El Nino | ENSO | La Nina | El Nino Modoki | Indian Ocean Dipole (IOD)
El Nino | ENSO | La Nina | El Nino Modoki | Indian Ocean Dipole (IOD)

El Nino

  • El Niño is the name given to the occasional d More..





Geography - Climatology - Laurentian Climate | Fishing off Newfoundland & Japan
Laurentian Climate | Fishing off Newfoundland & Japan

Laurentian Climate or Cool Temperate Eastern Marine Clima More..






Geography - Climatology - Temperature Inversion: Types & Effects on Weather
Temperature Inversion: Types & Effects on Weather

Temperature Inversion
  • Temperature inversion, is a reversal of the normal behavior of temperature in the troposphere, in which a layer More..





Geography - Climatology - Geostrophic Wind, Jet Streams & Rossby Waves
Geostrophic Wind, Jet Streams & Rossby Waves

Geostrophic Wind

  • The velocity and direction of the wind are the net result of the wind generating forces.
  • Th More..





Geography - Climatology - Major Jet Steams: Subtropical Jet Stream & Polar Jet Stream
Major Jet Steams: Subtropical Jet Stream & Polar Jet Stream

  • Both the Northern and Southern hemispheres have jet streams, although the jet streams in the north are more forceful due greater tempera More..





Geography - Climatology - Air Mass | Air masses based on Source Regions
Air Mass | Air masses based on Source Regions

Air Masses

  • When the air remains over a homogenous area for a sufficiently longer time, it acquires the characteristics of the area. The hom More..





Geography - Climatology - Fronts | Types of Fronts: Stationary Front, Warm Front, Cold Front & Occluded Front
Fronts | Types of Fronts: Stationary Front, Warm Front, Cold Front & Occluded Front

Understanding Front Formation and Types of Fronts is important to understand the formation of Mid-latitude cyclones [te More..






Geography - Climatology - Smog: Photochemical smog & Sulfurous smog
Smog: Photochemical smog & Sulfurous smog

Smog

  • Smog = smoke + fog (smoky fog) caused by the burning of large amounts of coal, vehicul More..