Concept of Cultural Hearth is associated with Carl O Sauer. Cultural hearths are geographic areas from where the major cultures of the world have originated. In other words, these are also the centers of scientific, economic and political innovation. Later, these innovations diffused from these regions to the rest of the world through trade, invasions, … Read more
Coriolis Force and Pressure Gradient Force (PGF) along with Frictional Force are three important forces which determine the direction, speed and curvature of winds both horizontally and vertically. What is Coriolis Force? Coriolis force is the force which is exerted by the rotating Earth on the objects moving on its surface. For example, any moving … Read more
Isopleths are the lines which connect the areas with same values of a given parameter. For example, we use isopleths or isolines for mapping atmospheric pressure, temperature, rainfall etc. To clarify, please note that the units of measurement are different for different parameters. Some of the important isopleths are as following. Types of Isolines 1. … Read more
Monsoon is derived from an Arabic word ‘mausin’ which refers to the seasonal reversal of winds. The Arab traders used to sail their ships to India with the help of these winds. Monsoon in India is an annual phenomena and acts as the rhythm to which most socio-cultural and economic phenomenon align. Definition of Monsoon? … Read more
इस समय उत्तर भारत बहुत गर्म मौसम की चपेट में है। भारत में मार्च से जून के महीनों के दौरान एक आम व्यक्ति बहुत बार हीट वेव्स की खबरें सुनता है। इस लेख में हम हीट वेव की सटीक परिभाषा और हीट वेव्स के कारण पर चर्चा करेंगे। हीट वेव्स क्या है? हम अक्सर सोचते … Read more
Presently, North India is reeling under very hot weather. A common person hears the news of heat wave very often during the months from March to June in India. In this article we will discuss the exact definition of heat waves and the reason of heat waves. What is Heat Wave? We, often, think that … Read more
Population Density is a quantitative measure that presents a ratio between the population of a region and its corresponding total geographical area. Researchers use population density for comparative studies in demography or population study. Further, the population density also helps us to understand the population-resource relationship. It assists in getting a better understanding of the … Read more
Population is unevenly spread all over the world. You might have also observed this in your locality. Some places have low concentration of population whereas some areas have high concentration of population. In the world low concentration of population are found in deserts, dense forests, mountainous areas etc. Similarly, there are many areas like coastal … Read more
Net Sown Area and Gross Cropped Area are two concepts which are used repeatedly to indicate the intensity of land use in agricultural sector. What is Net Sown Area? It is total area which is cultivated in an agricultural year. For instance, assume that the total land in a country is 100²Kms and 45²Kms. out … Read more
Whittlesey gave his classification of agriculture in 1936 based on many factors. For instance, factors controlling the yield, spatial stability, market orientation, specialization of agriculture etc. The relevance and basis of classification of Whittlesey’s Agricultural Regions has been discussed in a previous article. Whittlesey’s agricultural regions entails the social, cultural, biological and technological aspects of … Read more