3Varied land forms features Variations In ClimateVaried land forms featuresSome places are extremely hot while some are very cold.Coastal have moderate climate.Thar desert is extremely dry
4Vast Latitudinal extent EQUATORIAL REGIONThe Tropic of Cancer passes through India dividing it into two halves ..TROPIC OF CANCERHigh range of TempHigh TempLow rangeThe Northern half lies in the Temperate ZoneThe Southern half lies in the Tropical zone.
5Temperature decreased from low to high altitude AGRA160C in JanDarjeeling40C in JanuaryDecrease in TemperatureLOW ALTITUDESome places like Agra and Darjeeling lie on the same latitude but as Darjeeling is situated at a higher altitude are colder than places in the plains.
6FACTORS AFFECTING INDIAN CLIMATE The Himalayan Mt.Surrounding SeasRelief FeaturesDistance from Sea
7Factors Affecting Climate of India The HimalayasIn winters act as a barrier against the bitterly cold winds from the Arctic .In summer they trap the monsoon winds and bring rain to India.
9Receives high rainfall RELIEFReceives high rainfallWestern slopes of the Western Ghats get very heavy rain fall.Places to the East receive low rain fall.Western Ghat Mt.Monsoon WindReceives low rainfallMonsoon WindMonsoon Wind
10DISTANCE FROM SEASIMLADELHIKOLKOTAMUMBAICHENNAICoastal areas have moderate climate where as Interior parts have extreme climate.
11RHYTHM OF SEASONS HOT WEATHER RETREATING MONSOON COLD WEATHER SOUTH WEST MONSOON
12Winter Season It extends from December to February. Average temperature in the Northern Plains is between 10° C and 15°CNorth India experiences intense cold..There is light rainfall during winter.This is caused by Cyclonic storms which originate from the Mediterranean sea and Travel towards India These winds are WESTERN DISTURBANCEOccasional tropical cyclone visit eastern coast in this season.They cause heavy snowfall in the Himalayas and rain in the plains.
14RAINFALL DUE TO WESTERN DISTURBANCES RAINFALL DUE TO NORTH EAST WIND WINTER RAINFALLRAINFALL DUE TO WESTERN DISTURBANCESRAINFALL DUE TO NORTH EAST WIND
15The Summer Season Northern Plains record highest temperature. Summmer starts from April and lasts till June.Northern Plains record highest temperature.Deccan is comparatively coolerThe hot dry wind LOO blows over Northern Plains.Kalbaisakhi Occurs in West Bengal and Assam.Mango showers occur in Karnataka and Kerala
16SOUTH WEST MONSOON SEASON It extends from June to September.Intense heating in north west India creates low pressure region.Low pressure attract the wind from the surrounding region.After having rains for a few days sometime monsoon fails to occur for one or more weeks is known as break in the monsoon.HIGH TEMPERATURELOW PRESSURE
17MONSOON WIND EQUATOR Arabian sea Branch Bay of Bengal Branch SE Trade
18ONSET OF SW MONSOON 15th June 15th July 1st July 10th June 5th June 1st June
19RETREATING MONSOON SEASON It extends from October to November.In October the temperature starts dropping there is LOW PRESSURE ZONE in Northern India and cannot attract monsoon winds.The south -west winds retreat gradually.They blow from land to sea.They do not cause any rain except in Tamilnadu.ure region shift from northern parts of India towards south.Owing to the conditions of high temperature and humidity, the weather becomes rather oppressive. This is commonly known as the ‘October heat’LOW PRESSURE
20DISTRIBUTION OF RAINFALL Broadly ,India can be divided into Four rainfall regionsVery heavy rainfallheavy rainfallmoderate rainfallscanty rainfall> 200cmcmcm< 50cm
21Heavy rainfall regions :between 100to 200cm of rain in a year. Very heavy rainfall regions:more than 200cmOf rain in a year.the Western Coastal PlainsThe western slopes of theWestern Ghats.Most of the northeastern states.The Ganga plains in Bihar and West Bengal.The Himalayan region.The Northwestern part of the Peninsular PlateauParts of the Western Ghats.The east coast and the north east India
22Scanty rainfall region lessthan 50 cm Moderate rainfall region:Annual rainfall between 50—100cmScanty rainfall region lessthan 50 cmThe upper Ganga plainEastern Rajasthan Punjab Haryana and Soutern KashmirParts of the Deccan Plateau –Karnataka, Andhra Pradesh& Tamilnadu.Western Rajasthan Southern Punjab and Northern Gujarat.Eastern slopes of the Western Ghats.Northern Parts of Kashmir.
23HOT WEATHER SEASON It extends from March to May. Vertical sun rays shift towards Northern hemisphere.Temperature rises gradually from south to north.Highest Temperature experiences in Karnataka in March, Madhya Pradesh in April and Rajastan in May.May 480CApril 380CMarch 300C
25Let’sEvaluate Mention the Three factors which affect India’s climate. Why are the Himalayas important in determinig India’s climateGive the four Major seaons of India.What are western disturbances in which area do they cause rain?Which months are known for the retreating monsoon?Which is the rain shadow area?Name the four rainfall regions.Which region receives the the least amount of rainfall.
26CLIMATE CHANGE & INDIAIndia has long coast line and rise of sea level will submerge large area.A population of 7.1 million living in coastal areas will be affected.Production of crops like wheat, rice etc will decrease.The natural disasters like cyclone, floods and drought will increase in frequency as well as intensity.KOLKOTAMUMBAICHENNAI
27Prepare a power point presentation: showing the distribution of rainfall . how life is affected with excess rain or draught.Read and record the rainfall and temperature data of your city for 15days and make a graph.Study this years rainfall and compare it with Last year.
28Prepare a ppt. answering the following: Explain Monsoons its advantagesPrepare for a group discussion .Change in Climate in India.Prepare an analysis of yearly temperature and rainfall data by using different graphs and upload it toCollect photographs of monsoon and upload to or