Kerala's State Disaster Management Authority, "Dozens feared dead in India landslide after floods", "Toll in Idukki Landslide Rises to 52 as Three More Bodies Recovered", "Kerala rains: 22 dead in Idukki landslide, search resumes for 43 missing", "Air India jet breaks in two in Kerala, killing 18", Tea plantation landslide kills 49 in India as more feared buried, "A Step at a Time: How Kerala Can Start Picking up the Pieces", "Dip in rainfall,but State to remain on alert", https://en.wikipedia.org/w/index.php?title=2020_Kerala_floods&oldid=987311458, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 November 2020, at 06:12. Consequently, the air above coastal lands heats up faster than the air above seas. The Monsoon season in Kerala is indeed a heavenly spectacle as the whole of earth rejoices after being revived from the harsh summer spell. A normal monsoon is generally accepted to be one involving close to the average quantity of precipitation over all the geographical locations under its influence (mean spatial distribution) and over the entire expected time period (mean temporal distribution). 7. School Certificates Ruined In Flood, Kerala … geographical features of the Indian subcontinent, Intergovernmental Panel on Climate Change, Centre for Development of Advanced Computing, Department of Science and Technology (DST), former governor of the Reserve Bank of India, Districtwise Drought Climatology Of The Southwest Monsoon Season over India Based on Standardized Precipitation Index, "India cheers as monsoon arrives; hopes of better farm output raised", "India cheers as monsoon arrives in Kerala", "IPCC Fourth Assessment Report: Climate Change 2007, Glossary", "Class 9 CBSE Geography Climate The Mechanism of Monsoons - Wiki", "Agronomic Measures in Dryland Agriculture: An Overview", "Budget must focus on Growth, Food Inflation, FDI, Govt B/s: G Chokkalingam", "Monsoon withdrawal dates on Map of India", "Met. [4] On 9 August 2020, 49 people died during a landslide at a tea plantation in Rajamala. [23], Normally, the southwest monsoon can be expected to "burst" onto the western coast of India (near Thiruvananthapuram) at the beginning of June and to cover the entire country by mid-July. This shift is due to the intense heating of the plateau during the summer months. As such, it affects the environment (and associated flora, fauna, and ecosystems), agriculture, society, hydro-power production, and geography of the subcontinent (like the availability of fresh water in water bodies and the underground water table), with all of these factors cumulatively contributing to the health of the economy of affected countries. [54], The monsoon is the primary bearer of fresh water to the area. Thus, the monsoon is one of the best periods for an escape to Kerala. Monsoon rains are likely to hit the southern Kerala coast in two days, a top weather official said on Monday, easing concerns about the onset delay threatening plantings of … [30] Walker noticed that the quantity of rainfall in the Indian subcontinent was often negligible in years of high pressure over Darwin (and low pressure over Tahiti). [12] In India monsoons create an entire season in which the winds reverse completely. [50], The onset of the monsoon increases fungal and bacterial activity. This results in the north-to-south flow of the winds in the form of the northeast monsoon. But with the advent of globalization, such travel is gaining popularity. [Note 5] However, because of the Coriolis effect (which causes winds in the Northern Hemisphere to turn right, whereas winds in the Southern Hemisphere turn left), these southeast trade winds are deflected east in the Northern Hemisphere, transforming into southwest trades. Na początku sierpnia 2018 stan Kerala nawiedziły intensywne opady deszczu. An early shift results in an early monsoon. With around 120–140 rainy days per year,: 80 Kerala has a wet and maritime tropical climate influenced by the seasonal heavy rains of the southwest summer monsoon and northeast winter monsoon. A short note on the monsoons in kerala is mentioned here. Second, they help confine the winds to the subcontinent, hampering their northward progress. See photos taken only three months apart in the Western Ghats. [citation needed], Seasonal Prediction of Indian Monsoon (SPIM), The name of the wind is based on the direction that it blows, First, the Himalayas serve as orographic barriers to the southwest monsoon winds. [41] At least five prediction models exist. [38] Future changes in the monsoon will depend on a competition between land and ocean—on which is warming faster than the other. [4][5] The floods resulted in the death of at least 22 people. The Northern Limit of Monsoon (NLM) is currently passing through Shirali, Hassan, Mysuru, Kodaikanal, and Tuticorin.Moreover, conditions are now conducive for the further advancement of Southwest Monsoon into some more parts of South India and may even touch parts of Northeast … Thus, Walker established the relationship between southern oscillation and quantities of monsoon rains in India. In some years, the rain quantity is sufficient but its timing arbitrary. [55] The unique geographical features of the Indian subcontinent, along with associated atmospheric, oceanic, and geophysical factors, influence the behavior of the monsoon. The primary cause is believed to be the height of the Himalayas. The jet streams are systems of upper-air westerlies. Southwest monsoon, from June to August, is the main rainy season. An extravagant place for spending monsoon in Kerala; known for the famous Bekal fort this place is packed with many other forts, beaches and hills. [12] One area that monsoons impact greatly is India. Hanging an ideal balance in between the unsmooth areas and therefore in the coastal region, Monsoon in Kerala square measure majorly of 2 varieties. The effect is known to have a pronounced influence on the strength of the southwest monsoon over India, with the monsoon being weak (causing droughts) during El Niño years, while La Niña years bring particularly strong monsoons.[29]. India is known as land of festivals, Every next day there is a festival celebrated somewhere around the country. On reaching land, these winds rise because of the geographical relief, cooling adiabatically and leading to orographic rains. [45] A sixteen-parameter monsoon forecasting model used since 1988 was replaced in 2003. [55][56] As such, the flora, fauna, and entire ecosystems of these areas rely heavily on the monsoon. Kerala's rains are mostly the result of seasonal monsoons. Monsoon is an ideal time for Ayurvedic treatments in Kerala, it is believed that Ayurveda therapies work best in the rainy season as the pores of the skin opens during this season. The "bursting"[14] of the monsoon is primarily explained by the jet stream theory and the dynamic theory. Daytime scene showing the pre-monsoon air over India. Now also, Monsoon is yet to mark its onset in Kerala. The department has tried to forecast the monsoon for India since 1884,[41] and is the only official agency entrusted with making public forecasts about the quantity, distribution, and timing of the monsoon rains. In the case of the monsoon, the cause is primarily orographic, due to the presence of highlands in the path of the winds. The relevant features in explaining the monsoon mechanism are as follows: Pink arrow: Southwest monsoon wind direction; green arrow: northeast monsoon wind direction. Monsoon hit the Kerala coast today after being delayed by a week commencing the four-month rainfall season in the country. Also known as the thermal theory or the differential heating of sea and land theory, the traditional theory portrays the monsoon as a large-scale sea breeze. The Western Ghats are the first highlands of India that the southwest monsoon winds encounter. It is only when the Tibetan Plateau heats up significantly more than the Himalayas that the ITCZ rises abruptly and swiftly shifts north, leading to the bursting of monsoon rains over the Indian subcontinent. Kerala was also flooded in 2018 and 2019 . [29] Further, the two poles of the IOD – the eastern pole (around Indonesia) and the western pole (off the African coast) — independently and cumulatively affect the quantity of monsoon rains. [29] In negative dipole years, the reverse happens, making Indonesia much warmer and rainier. [12], The rainfall is a result of the convergence of wind flow from the Bay of Bengal and reverse winds from the South China Sea. Recent trends in average annual precipitation from monsoons. Find the perfect kerala monsoon stock photo. This system was discovered in 1999 and named the Indian Ocean Dipole (IOD). The floods resulted in the death of at least 22 people. [22] The unique geographic relief features of the Indian subcontinent come into play in allowing all of the above factors to occur simultaneously. In 2003, IMD substantially changed its forecast methodology, model,[44] and administration. Most of the coastal rivers of Western India are also rain-fed and monsoon-dependent. Between the two monsoon seasons, the temperature remains cool in most parts of Kerala. Precipitation then occurs on the windward side of the highlands because of adiabatic cooling and condensation of the moist rising air. Striking a perfect balance between the hilly areas and the coastal region, monsoon in Kerala are majorly of two types. Since the strength of the monsoon is partially dependent on the temperature difference between the ocean and the land, higher ocean temperatures in the Indian Ocean have weakened the moisture bearing winds from the ocean to the land. The dry, northeasterly trade winds, and their more extreme form, the harmattan, are interrupted by the northern s… Consequently, with the ITCZ at the Tropic of Cancer, the southeast trade winds of the Southern Hemisphere have to cross the equator to reach it. The Himalayas play more than the role of orographic barriers for the monsoon. [29] The relationship between extremes of the Indian summer monsoon rainfall, along with ENSO and EQUINOO,[32] have been studied, and models to better predict the quantity of monsoon rains have been statistically derived.[32]. IOD develops in the equatorial region of the Indian Ocean from April to May and peaks in October. This is the southwest monsoon. Sometimes, despite average annual rainfall, the daily distribution or geographic distribution of the rain is substantially skewed. The northward shift is not a slow and gradual process, as expected for most changes in weather pattern. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Fourth, they are a major factor in the. Therefore, the agricultural calendar of India is governed by the monsoon. A recent assessment of the monsoonal changes indicate that the land warming has increased during 2002–2014, possibly reviving the strength of the monsoon circulation and rainfall. [29], As with ENSO, the atmospheric component of the IOD was later discovered and the cumulative phenomenon named Equatorial Indian Ocean oscillation (EQUINOO). [159] A view of a flooded road after Monsoon rains in Kochi Kerala took lessons from 2018 floods, all set to manage any disaster this monsoon 3 min read. Mid October witnesses the arrival of the Northeast Monsoon. The dynamic theory explains the monsoon on the basis of the annual shifts in the position of global belts of pressure and winds. Because of its effect on agriculture, on flora and fauna, and on the climates of nations such as Bangladesh, Bhutan, India, Nepal, Pakistan, and Sri Lanka – among other economic, social, and environmental effects – the monsoon is one of the most anticipated, tracked,[3] and studied weather phenomena in the region. In some years, it rains too much, causing floods in parts of India; in others, it rains too little or not at all, causing droughts. One major drawback of traveling during the monsoon is that most wildlife sanctuaries are closed. Change of direction or origin of winds alters their nomenclature as noted above. A host of mosquito-borne, water-borne and air-borne infections become more common as a result of the change in the ecosystem. Because more than half of these farmlands are rain-fed, the monsoon is critical to food sufficiency and quality of life. A good monsoon results in better agricultural yields, which brings down prices of essential food commodities and reduces imports, thus reducing food inflation overall. South West Monsoon. This makes the Arabian Sea (the western Indian Ocean near the African coast) much warmer and the eastern Indian Ocean around Indonesia colder and drier. Take a journey to this historic destination with your loved ones , famously known for the song from Bombay movie. The normal onset date of Southwest Monsoon over Kerala is June 1. [42], The Centre for Development of Advanced Computing (CDAC) at Bengaluru facilitated the Seasonal Prediction of Indian Monsoon (SPIM) experiment on the PARAM Padma supercomputing system. On 8 August 2019, due to heavy rainfall in the Monsoon season, severe flood affected Kerala. This jet creates a low-pressure zone over the northern Indian plains, influencing the wind flow toward these plains and assisting the development of the southwest monsoon[clarification needed]. There have been books written and films made which showcase the beauty of the state during the season. Date: 8 July 2007: Source: Transferred from ml.wikipedia to Commons by Sreejithk2000 using CommonsHelper. These include diseases such as dengue, malaria, cholera, and colds. Kerala's State Disaster Management Authority, Kerala police along with the Indian Air Force, civilians, volunteers, fishermen from coastal Kerala are actively taking part in the rescue operations in flood-affected regions. And when coupled with the traditional theory (based on the heating of sea and land), it enhances the explanation of the varying intensity of monsoon precipitation along the coastal regions with orographic barriers. Geographical features of the Indian subcontinent. This causes the flow of moisture-laden winds from sea to land. These create areas of low air pressure above coastal lands compared with pressure over the seas, causing winds to flow from the seas onto the neighboring lands. Places like Kerala and the Western Ghats get a large number of tourists, both local and foreigners, during the monsoon season. This was because the runway of Calicut airport was flooded and visibility was less because of heavy rain. Kerala is one of the top destinations for tourists interested in Ayurvedic treatments and massage therapy. According to this theory, the monsoon is a result of the shift of the Inter Tropical Convergence Zone (ITCZ) under the influence of the vertical sun. [Note 6] These pick up moisture while traveling from sea to land and cause orographic rain once they hit the highlands of the Indian Peninsula. As a security measure in the prevailing situation of heavy rains, the India Meteorological Department had issued Red alert in the 9 districts in Northern and Central Kerala, orange alert in 3 districts of Central Kerala, and yellow alert in the 2 districts of southern Kerala. [29] When EQUINOO effects are factored in, certain failed forecasts, like the acute drought of 2002, can be further accounted for. The economic significance of the monsoon is aptly described by Pranab Mukherjee's remark that the monsoon is the "real finance minister of India". They follow the principle of geostrophic winds. 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