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This document discusses monsoons and their causes. It defines monsoons as seasonal reversals of wind direction caused by temperature differences between land and sea. Monsoons occur due to changes in atmospheric pressure from different heating and cooling rates of continents and oceans. India's climate is dominated by monsoons, which bring most of the country's annual rainfall from June to September. There are two main types of monsoons in India: southwest monsoons which blow from the Indian Ocean, and northeast monsoons which blow from Siberia. The document also explains El Nino and La Nina phenomena and their effects on global weather patterns.
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1) India's climate is dominated by the monsoon system which brings seasonal reversal of winds and heavy rainfall from June to September.
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3) The monsoon is caused by differential heating of land and sea which creates low pressure over India and high pressure over the oceans, drawing in the moisture-laden southwest winds during summer.
4) India experiences distinct seasonal patterns with a hot summer season, rainy monsoon season, and cooler winter season with some regional variations.CLIMATE (Rasheed Ansari).pdfdddddddddddd
CLIMATE (Rasheed Ansari).pdfddddddddddddaswathhemantha
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The document summarizes India's climate and seasonal patterns. It discusses factors like the Himalayas, monsoon winds, varied terrain, and surrounding seas that influence India's climate. The monsoon season from June to September brings heavy rainfall to much of the country. Winter from December to February sees rainfall from western disturbances in parts of North India. The climate varies regionally from tropical in the south to temperate in the north. Seasons include a hot dry summer and monsoon followed by retreating and northeast monsoon periods.indian_climate_and_monsoon_77 (1).docx
indian_climate_and_monsoon_77 (1).docxPrem359576
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The document discusses India's climate and monsoon patterns. It notes that India experiences both tropical and subtropical climates due to its latitude. The monsoon is caused by differential heating of land and sea surfaces, resulting in reversal of wind patterns between summer and winter. In summer, moist southwestern winds bring heavy rainfall as the Inter-Tropical Convergence Zone shifts northward. Various factors like pressure systems, jet streams, and elevation differences result in regional rainfall variations within India.monsoonppt-130504055118-phpapp02-150115110454-conversion-gate01.pdf
monsoonppt-130504055118-phpapp02-150115110454-conversion-gate01.pdfSaishaRevagade
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A monsoon is a seasonal change in wind direction that typically brings a marked change in local weather. It refers especially to the Asian monsoon affecting India and Southeast Asia. The monsoon winds are caused when temperature differences between oceans and continents lead winds to blow from the ocean to the land, bringing moist air and monsoon rains to places like Southern Asia during certain months of the year. Many parts of the world experience monsoons, but the Asian monsoons are probably the most famous, impacting countries like India, China, Japan, and Southeast Asia.Environment 4 geography project ppt.pptx
Environment 4 geography project ppt.pptxSarimWarisKhan
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This document discusses the weather and climate of India. It begins by defining weather and climate, then describes the six major controls of climate: latitude, altitude, pressure/wind systems, distance from the sea, ocean currents, and relief features. It explains how these factors influence India's climate, which largely depends on the southwest monsoon winds that arrive between June and September, bringing heavy rainfall. The document outlines India's four main seasons and their characteristics.Pragya jainn
Pragya jainnDinesh Singhai
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Weather refers to current atmospheric conditions like temperature, wind, and precipitation, while climate describes average weather patterns over 30+ years. India's climate is influenced by its location near the equator, the Himalayan mountains, ocean currents, and monsoon winds. The four main seasons in India are winter, summer, the rainy season brought by advancing monsoons, and a transition season as the monsoons retreat.Climate - sst class9
Climate - sst class9 Parth Kshirsagar
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Weather refers to current atmospheric conditions like temperature, wind, and precipitation, while climate describes average weather patterns over 30+ years. India's climate is influenced by its latitude near the Tropic of Cancer, the Himalayan mountains, ocean currents, and monsoon winds. The monsoon season from June to September brings most of India's annual rainfall, though it can vary significantly between wet and dry periods. India experiences four main seasons - a cold winter, hot summer, advancing monsoon rains, and retreating monsoon transition.Ad
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Vikrant. ppt
- 1. Kurukshetra University, Kurukshetra Department of Environment Science Submitted BY :- Name : Vikrant saini Class : MSC(P) Roll no . 4 Submitted To :- Prof. Smita chaudhary Director of Department Environment science
- 3. Contents Definition Cause Indian Monsoons Types of Monsoons El Nino and Effects La Nina and Effects Conclusion
- 4. Monsoons Monsoon is term derived from the Arabic word Mausim, meaning season. It was first used by Arabic navigators to describe the seasonal winds of Arabian sea. These winds blow from the north-east for one half of the year and for the south-west of other half.
- 5. Cause Monsoons occur due to changes in atmospheric pressure which are caused by different rates of heating and cooling of continents and oceans. Monsoons occur every year in many countries around the world other than South Asia - northern Australia, Africa, South America and the US are also affected.
- 6. The Indian monsoons : Indias climate is dominated by monsoon. The term technically describes seasonal reversals of wind direction caused by temperature differences between land and sea breeze ,creating zones high and low pressure over land in different seasons.
- 7. Types of monsoons :Types of monsoons South west monsoons North east monsoons
- 8. South west monsoons :- The South West (summer) monsoon has warm winds blowing from Indian Ocean. Its span is June to September, with 75 % of the annual rainfall in India. It varies from 10 cm in western Rajasthan to over 900 cm in Meghalaya.
- 9. North east monsoons :- North- East (winter) monsoon is characterized by a dry continental air mass blowing from the vast Siberian high pressure area from December to March. The rainfall includes snowfall during winter monsoon which is of the order of 1000 km2 in India. This is also known as Retreating monsoon.
- 10. Map : 17th June 2013
- 11. El Nino refers to the large-scale ocean-atmosphere climate phenomenon linked to a periodic warming of at least 0.5属C in sea-surface temperatures across the central and east-central equatorial Pacific. El Nino: Normal conditions EL Nina conditions
- 13. EL Nino effect :Weak trade winds and weak upwelling cause warm water off the coast of S. America.
- 14. Effect of EL Nino :- 1.Dry conditions:-
- 15. 2. Flood conditions :-
- 16. La Nina:- La Nina refers to the periodic cooling normal by 35 属C of ocean surface temperatures in the central and east-central equatorial Pacific. Normal conditions La Nina conditions
- 17. La Nina :-
- 18. Conclusion A monsoon is a seasonal shift in the prevailing wind direction, that usually brings with it a different kind of weather. Monsoons are large-scale sea breezes . El Ni単o and La Ni単a are naturally occurring phenomena that result from interactions between the ocean surface and the atmosphere over the tropical Pacific.
- 19. References Contents Monsoons http://www.monsoons.com Contents - El Ni単o http://www.msc-smc.ec.gc.ca/education/elnino/index El Ni単o/La Ni単a Update http://www.wmo.ch/nino/updat.html#intro
- 20. Any Question ?