Subject Geography For Class IX XI

Subject: Geography For Class: IX & XI

PRESENTED BY: ASHUTOSH KARASHARMA MISHRA Address: (Personal) At: Srikrisna Nagar Po: Loisingha Dist: Bolangir Orissa-767020 Address: (Official) At: JNV, Koraput Po: OMP Line Dist: Koraput Orissa Phone No: 9437146288 E-mail: canyon_geo@yahoo. com Tiger_sir@rediffmail. com

► Familiarize students with the terms, key concepts and basic principles associated with the climate of India. ► Provide them idea about the mechanism of Indian monsoon. ► Study the climate of India through the understanding and analysis of local climate. ► Explore the causative factor of the spatial variations in the climate of the country. ► Understand analyze the variation of climatic phenomenon in the cycle of seasons. ► Make students aware of the change in climate (global warming) at local level to understand it at national and global level.

Watch Out Weather News……………. Hot weather season Cold Weather Season Four Videos Embedded: Monsoon season Tropical Cyclone Please right click over the dark square to choose Play or Stop one after another.

CONTENTS OF THE LESSON Part-I Climatic Diversity of India Part-II Factors Affecting Climate of India Part-III Rhythm of Seasons Part-IV Distribution of Rainfall Part-V Change of Climate Please click on the box to navigate to the pages

Why does weather change spatially & temporally? Let us examine…

Drass -450 C in December night Tawang 190 C in June 550 C temperature in June Thar desert Diurnal range of temperature 300 C Jaisalmer receives 9 cm rainfall Tiruvanantapuram & Chennai 200 C in December night Cherrapunji & Mawsynram have 1080 cm rain Kerala Diurnal range of temperature 80 C MONSOON REGIME IS THE UNITY OF INDIA

MORE DIVERSITIES…………………. . üChuru in Rajasthan records a temperature of 50°C or more on a June day. üSnow fall over the Himalayas. üMost parts of India receives rainfall during June to September. üTura of Meghalaya receives rainfall in a single day is equal to the total rainfall of Ten years in Jaisalmer of Rajastan. üIt is 19°C in Tawang (Arunachal Pradesh) on the same day. üOnly rainfall over rest of India. üTamilnadu coast remains dry during these months. üVery low rainfall in North west Himalayas and western Rajastan which is equal to 10 cm per year. MONSOON REGIME IS THE UNITY OF INDIA

► Lets divide the class into five groups namely A, B, C, D and E. ► Collect the data of temperature and rainfall of different cities of India from web site www. allrainfallreports. com. ► Collect the rainfall and temperature data of your town and compare it with the data of other cities of India. ► Make a comparative study of temperature and rainfall data of different districts of Orissa. (Source. Climatological survey of Orissa 1987 -2003 & District statistical handbooks) ► Write about the climate of your district and upload it to www. climateofindia. pbwiki. com. ► Make a power point presentation of all the activities you have done. CLICK ON ICON TO DOWNLOAD TEMPLATE

FACTORS AFFECTING INDIAN CLIMATE RELATED TO LOCATION & RELIEF • Latitude RELATED TO AIR PRESSURE & WIND Surface pressure & wind • Altitude • Relief • Distance from Sea • The Himalayan Mt. • Distribution of Land & water Upper air circulation Western cyclones FAQ

LATITUDE FAQ TROP IC OF CANC E R High range of Temp High Temp Low range EQUATORIAL REGION

n soo d Win on nso Mo Mo on nso Mon e Wav e ind Cold Wav e Wav Cold n. W soo THE HIMALAYAS- CLIMATIC BARRIER

DISTRIBUTION OF LAND & WATER FAQ LO WP HIGH PRESSURE RE SS IN WINTER UR E IN SU MM E R ARABIAN SEA INDIAN OCEAN BAY OF BENGAL

DISTANCE FROM SEA SIMLA DELHI KOLKOTA MUMBAI CHENNAI Coastal areas have equable climate where as Interior parts have extreme climate.

ALTITUDE FAQ Temperature decreased from low to high altitude De cr ea se in Te m pe ra tu re HIGH ALTITUDE LOW ALTITUDE AGRA 160 C in Jan DARJILING 40 C in January

RELIEF FAQ n Ghat Wester Receives high rainfall Mt. d in W d n in oo W d ns n in o oo M W ns n o o M so on M Receives low rainfall

SURFACE WIND POLAR HIGH SUB TROPICAL LOW PRESSURE NORTH-EAST TRADE WIND SUB TROPICAL HIGH PRESSURE INTER TROPICAL CONVERGENCE ZONE SUB TROPICAL HIGH PRESSURE SUB TROPICAL LOW PRESSURE POLAR HIGH SOUTH-EAST TRADE WIND

JET STREAM IN WINTER TIBET

JET STREAM IN SUMMER

WESTERN DISTURBANCE Mediterr anean s ea

EL-NINO EFFECTS FAQ 1990 Delay in Monsoon Peru Equatorial Warm Current El-Nino Homboldt Cold Current

SOUTHERN OSCILLATION Tahiti Darwin

Prepare a ppt. answering the following: ► Collect the data on the effect of El-nino over different parts of world and prepare a presentation and upload it to www. climateofindia. pbwiki. com. ► Explain the factors affecting the climate of your region in a word/pdf file and upload it to www. think. com or www. climateofindia. pbwiki. com page. ► Invite your friends to your www. think. com or www. epal. com site to explain about the climate of their region. ► Explain how jet stream affect the climate of India in word/pdf file and upload it to the suitable web page. ► Compare how relief affect the climate of your region. CLICK ON ICON TO DOWNLOAD TEMPLATE

RHYTHM OF SEASONS HOT WEATHER COLD WEATHER RETREATING MONSOON SOUTH WEST MONSOON Let us discuss each of them individually

COLD WEATHER SEASON ► It extends from December to February. ► Vertical sun rays shift towards southern hemisphere. ► North India experiences intense cold where as this season is not well defined in south India. ► Light wind blow makes this season pleasant in south India. ► Occasional tropical cyclone visit eastern coast in this season. Tropical Cyclone Rhythm of Seasons

TEMPERATURE- JANUARY 100 C` 150 C 200 C 250 C Rhythm of Seasons

PRESSURE- JANUARY 10 18 10 19 18 18 10 10 HIGH PRESSURE 10 17 10 16 10 15 1014 Rhythm of Seasons

WIND DIRECTION- WINTER No rth er n. P lai n Ganga Delta Bay of Bengal Rhythm of Seasons

WINTER RAINFALL DUE TO WESTERN DISTURBANCES RAINFALL DUE TO NORTH EAST WIND Rhythm of Seasons

HOT 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 480 C April 380 C March 300 C Rhythm of Seasons

TEMPERATURE- JULY 250 C 20 0 C 300 C 0 C 20 0 C 25 0 C 30 30 0 C Rhythm of Seasons

99 7 PRESSURE- JULY 999 998 1000 1003 1001 100 2 1 1005 004 6 1007 Rhythm of Seasons

STORMS IN HOT WEATHER SEASON FAQ BARDOLI CHHEERHA LOO KALBAISAKHI MANGO SHOWER BLOSSOM SHOWER Rhythm of Seasons

SOUTH 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 TEMPERATURE LOW PRESSURE Rhythm of Seasons

MONSOON WIND Arabian sea Branch Bay of Bengal Branch e ad SE SE Tr e ad Tr SE SE Tr e ad INTER TROPICAL CONVERGENCE ZONE EQUATOR Rhythm of Seasons

15 th Jun e ONSET OF SW MONSOON 1 st th 15 Jul y y l Ju ne u J th 10 e th 5 n Ju st 1 e un J Rhythm of Seasons

RETREATING MONSOON SEASON ► It extends from October to November ► Vertical sun rays start shifting towards Northern hemisphere. ► Low pressure 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 Rhythm of Seasons

15 th Se pt. WITHDRAWAL OF MONSOON . th 7 th 30 th 7 S t ep . S O o ct r be th 15 er ob O ct Rhythm of Seasons

Prepare a ppt. answering the following: ► Explain the seasonal difference of climate of your region in a word/pdf file and upload it to www. climateofindia. pbwiki. com. ► Search friends from different parts of India and seek their comments and compare the seasonal difference in climate of different parts of India by using www. think. com. ► Prepare an analysis of yearly temperature and rainfall data by using different graphs and upload it to www. climateofindia. pbwiki. com. ► Collect photographs of monsoon and upload to www. think. com or www. climateofindia. pbwiki. com. CLICK ON ICON TO DOWNLOAD TEMPLATE

DISTRIBUTION OF RAINFALL > 200 cm 100 -200 cm 50 -100 cm < 50 cm

VARIABILITY OF RAINFALL ► The variability of rainfall is computed with the help of the following formula: C. V. = Standard Deviation/ Mean * 100 ► Variability of less than 25% exist in Western coasts, Western Ghats, northeastern peninsula, eastern plain of the Ganga, northern India, Uttaranchal, SW J & K & HP. ► Variability of more then 50% found in Western Rajastan, J & K and interior parts of Deccan. ► Region with high rainfall has less variability.

Prepare a power point presentation answering the following: ►Why there is variation of rainfall in different parts of India? Explain in a word/pdf file and upload. ►Calculate the variability of rainfall of your region. ►Compare the variability of rainfall with the total rainfall of your region. ►Measure the rainfall in your school and record it in a spread sheet for analysis. ►Read out the rainfall and temperature data of your school daily in the morning assembly. CLICK ON ICON TO DOWNLOAD TEMPLATE

CLIMATE CHANGE IMPACT OF GLOBAL WORMING FLOOD FOREST FIRE SPREAD OF TROPICAL DISEASES INCREASE IN GREEN HOUSE GASES MELTING OF ICE RISE IN TEMPERATURE TSUNAMI & EARTHQUAKE EXCESSIVE SUN STROKE FOO SCA D RCIT Y LOSS OF BIODIVERSITY SEA LEVEL RISE SINKING COAST

SOME INTERESTING FACTS ► Temperature increased by 0. 60 C in 20 th century. ► Eleven out of twelve hottest years are within 1995 to 2006. ► Annual rate of increase of CO 2 is 1. 9 ppm after 1995. ► Concentration of methane increased from 700 ppb in 1750 to 1745 ppb at present and Nitrous Oxide from 270 ppb to 314 ppb where as CFC increased from zero to 533 ppb. ► Rising of temperature to 30 C will lead to melting of all ice on earth surface and sea level rise upto 15 feet. ► Existence of large cities like Venis, Bankok, Sanghai, Kolkota and Dhaka will be in danger. FAQ

CLIMATE CHANGE & INDIA ► India 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. KOLKOTA MUMBAI CHENNAI

WHAT CAN BE DONE? ? ? ►Switch off the light, fan, TV and other energy using gadgets when they are not in use. ►Do not use those equipments that pollute or consume more energy. ►create public awareness. ►use renewable energy resources like solar, wind, biomass etc. ►International conferences like Earth Summit, 1992, Kyoto protocol, Copenhegen summit, 2009 are some steps to bring consensus for crusade against Climate Change.

► Ask elders of your family or village about their perception of change in climate and explain it in a word/pdf file and upload it to www. climateofindia. pbwiki. com. ► Give an analysis of change in temperature of your region by collecting data of fifteen years from climatological survey of orissa. ► Explain what you can do to reduce the impact of climate change. ► Ask your friends through www. think. com about their contribution to reduce the impact of climate change. ► Prepare a power point presentation explaining all above. CLICK ON ICON TO DOWNLOAD TEMPLATE

TEST YOUR KNOWLEDGE 1. Name the factors affecting climate of India. Answer 2. What is meant by El-nino? Answer 3. Why the south western part of peninsular India receives high rainfall? Answer 4. Name the important green house gases. Answer 5. How altitude affects climate? Answer 6. How distance from sea affect climate? Answer 7. What is meant by mango shower? Answer 8. What is meant by Inter Tropical Convergence Zone? Answer

EVALUATION RUBRIC Sl No. Evaluation points Very Good 1 Participation All the members have of all members participated of the group (5 Marks) Some Members have participated. (3 Marks) Few members have participated. (2 Marks) 2 Technology used for presentation, collection of Efficient use of information and technology in understanding. self-learning (5 Marks) Technology used for presentation and collection of information. (3 Marks) Technology used for presentation only. (2 Marks) 3 Collection of new information Information collected are new, relevant and latest. (5 Marks) Information collected are new and relevant. (3 Marks) Information collected are new only. (2 Marks) Presentation of Topic in the classroom Presentation of topic was clear, able to clarify doubts and with proper flow of topic. (5 Marks) Presentation of topic was clear and able to clarify doubts. (3 Marks) Presentation of topic was clear only. (2 Marks) 5 Development of Innovative Thinking Innovation in presentation, collection of new information and use of technology. (5 Marks) Innovation in presentation and collection of new information. (3 Marks) Innovation in presentation only. (2 Marks) Total 25 15 10 4 Excellent Mark Obtained Evaluate the classroom presentation of other groups and assign marks.

CITATION ► Abraham, K. R. ; Dash, S. K. and Mohanty, U. C. , 1996: Simulation of monsoon circulation and cyclones with different types of orography; Mausam, 47, 235 -248. ► Ashok K. , S. Lizuka, S. A Rao, N. H. Saji and W. Lee, 2009 : Processes and boreal summer impacts of the 2004 El Nino Modoki: An AGCM study. Geophysical Research Letters, 36, L 04703, doi: 10. 1029/2008 GL 036313, 1 -5. ► Bannerji, S. K. , 1950 : Methods of forecasting monsoon and winter rainfall in India. Ind. J. Met. and Geophys. , 4, 343 -346. ► Bhalme, H. N. and Jadhav, S. K. , 1984: The southern oscillation and its relation to the monsoon rainfall. J. Climatol. , 4, 509 -520. ► Krishnakumar V. and K. ‑M. Lau, 1997 : Symmetric Instability of Monsoon Flows. Tellus 49 A, 228‑ 245. ► Physical Geography of India, NCERT, class-IX ► Economic & Commercial Geography of India, C. B. Memoria. ► Regional Geography of India, R. L. Singh. ► www. imd. gov. in ► http: //tinyurl. com/q 4 a 6 mg ► http: //timesofindiatimes. com/articleshow/4755025. cms ► http: //www. nws. noaa. gov/ost/climate/STIP

ACKNOWLEDGEMENT Heartiest Thanks to Mr. S. K. Tripathy, Principal JNV, Koraput Mr. R. P. Maharana, TGTEnglish, JNV, Koraput Project Learning, Microsoft, for providing me training.