Select Page Article on Natural Calamities in India In India, natural calamities such as floods, droughts, cyclones and earthquakes have caused widespread damage and disruption. Disaster management emphasizes the need for incorporating multi-functional, multi-disciplinary and sectoral approach involving engineering, social and financial processes.
Since time immemorial, mankind has lived under the threat of natural disasters. Amongst various hazards of nature, drought is the most disastrous.
In the past, India had been a frequent victim of disastrous droughts, which resulted in famine deaths of large members of human and livestock.
Technological developments and natural efforts are in progress to ameliorate the impacts of drought and being about sustainability to agricultural productivity in the country.
Low Essay on natural calamities in india or failure of monsoon rains is a recurring feature in India. This has been responsible for droughts and famines.
The word drought, generally, denotes scarcity of water in a region. Though, aridity and drought are due to insufficient water, aridity is a permanent climatic feature and is the culmination of a number of long term processes.
However, drought is a temporary condition that occurs for a short period due to deficient precipitation for vegetation, river flow, water supply and human consumption. Drought is due to anomaly in atmospheric circulation. Drought is a climatic anomaly, characterised by deficit supply of moisture resulting either from subnormal rainfall, uneven distribution, higher water need or a combination all the factors.
There is no universally accepted definition of drought: Early workers defined drought as prolonged period without rainfall.
According to Ramdasdrought is a situation when the actual seasonal rainfall is deficient by more than twice the mean deviation. American Meteorological Society defined drought as a period of abnormally dry weather, sufficiently prolonged for lack of water to cause a severe hydrological imbalance in the area affected.
In general, drought means different things to different people. To a meteorologist it is the absence of rain while to the agriculturist it is the deficiency of soil moisture in the crop root zone to support optimum crop growth and productivity. To the hydrologist it is the lowering of water levels in lakes, reservoirs etc.
Thus, it is unrealistic to expect a universal definition of drought for all fields of activity. Prolonged deficiency of soil moisture adversely affect crop growth indicating incidence of agriculture drought.
It is the result of imbalance between soil moisture and evapotranspiration needs of an area over a fairly long period as to cause damage to standing crops and to reduce the yields.
Drought can be classified based on duration and nature of users.
In both the classifications, demarcation between the two is not well defined and many a time overlapping of the cause and effect of one on the other is seen. Droughts are classified into eight kinds: This is characteristic of the desert climate where sparse vegetation growing is adapted to drought and agriculture is possible only by irrigation during entire crop season.
This is found in climates with well-defined rainy and dry seasons. Most of the arid and semiarid zones fall in this category. Duration of the crop varieties and planting dates should be such that the growing season should fall within rainy season. This involves an abnormal failure of rainfall.
It may occur almost anywhere especially in most parts of humid or sub-humid climates. It is usually brief, irregular and generally affects only a small area.
This can occur even when there is frequent rain in an area. When rainfall is inadequate to meet the evapotranspiration losses, the result is borderline water deficiency in soil resulting in less than optimum yield.
This occurs usually in humid regions. Droughts are also classified based on their relevance to the users.
In India, the definition for meteorological drought adopted by IMD is a situation when the deficiency of rainfall at a meteorological sub-division level is 25 per cent or more of the long- term average LTA of that subdivision for a given period.
Drought is considered moderate; if the deficiency is between 26 and 50 per cent and severe if it is more than 50 per cent. In our country, a year is considered to be a drought year in case the area affected by moderate and severe drought, either individually or together, is 20 to 40 per cent of the total area of the country and seasonal rainfall deficiency during southwest monsoon season for the country as a whole is at least 10 per cent or more.
It is due to low air humidity, frequently accompanied by hot dry winds. It may occur even under conditions of adequate available soil moisture.In India, natural calamities such as floods, droughts, cyclones and earthquakes have caused widespread damage and disruption.
Disaster management emphasizes the need for incorporating multi-functional, multi-disciplinary and sectoral approach involving engineering, social and financial processes.
Many regions in India are highly vulnerable to natural and other disasters on account of geological conditions. Disaster management has therefore emerged as a high priority.
Going beyond the historical focus on relief and rehabilitation after the catastrophe, there is a need to look ahead and plan for disaster preparedness and mitigation. The geographical, climatic and demographic conditions of India invites different types of natural disasters as annual festivals, as a result our country has become one of disaster prone country of the globe.
Natural Disaster Management is increasingly becoming a global issue, much like child labour. Free sample essay on The Natural Calamities. In recent years natural calamities have taken a heavy toll of lives and this is something quite shocking. Earthquakes, tsunami and floods batter some islands like Indonesia again and again.
As waves rise to some meters people walking by the side of the. Floods, droughts and famines are also natural calamities like earthquakes and volcanoes which man has to face. However, there is a case of floods, drought and famines he is able to control them, diminish the danger and at times even completely eliminate them as in the case of famines.
Even today, it is considered as one of the worst natural calamities in India of all time. Coringa Cyclone • Year: One of the worst natural disasters in the history of India, the cyclone.