 గానానకినెనియా నింరకన అపఫారాచిన్ట్ల౿సంని చావరార్ ికర్టరం చియకరిగికకికఖాదిసంపన గానాచారికినింనినికందరికెపిల౿నంసలిెటిల the so ind is nothing but horizontal movement of air why not vertical that happens in the collision theory also cloud droplets moving who going ahead but normally horizontal movement of air becomes weight. Which is triggered by temperature and atmospheric pressure this is very important a good relationship during the temperature atmospheric pressure as well as speed. When the temperature goes on increasing what happens if the pressure gradient between two location gets varied. Then, there is a low and high being developed as a result wind moves from the high to lower, క్రుఀ యియానిస్పి రిచిదికిక్మారుఎయసి నివమిందిర వని ఆపిందింండి. రినింద౾ నకార నివలెతార్క సందిజండి. రౕ మందివిందిలు సావిలి. మానా తార్నం, వనిమరి నలె కారాని. వావాలిష్లిన వినిక్తిండిక్కినిండింది న౮ంట౦ిసేవువం ఎడెధిదింసిれる మామై నింత్వా నినిక్మత్. ​. We can. We can. so by hill reaction water is getting splitted into hydrogen oxygen and mixed with carbon dioxide you have carbon hydride protection by the plants, so in the absence of the carbon dioxide there is no photosynthesis, so wind transports carbon dioxide from one side to the plant side that is why plant gets enough carbon dioxide for its photosynthetic production, temperature also gets transferred from one place to other place where wind, so for example when the temperature is more in a particular place that temperature being diluted by going with moving wind from other places then irrigation management this is very very important when the wind speed is more or wind is more means you need more irrigation and also there is a physical damage to the crop though through your wind also, the other area is pest and disease management this is very important you know white flies it is a very very dangerous insect it sucks the sap of the plant and makes the plant dried, it is immobile insect it does not move on its own there is no wing so when wind goes it goes, in northern part of India example grasshopper they come from one place to other place through wind also, so wind is very very important, then transpiration and evaporation this is very very important I was discussing about the crop order requirement when ET is more your production would be more price ET is around 1400 millimetre the yield was 510 nus per hectare, in the case of pulses the ET is 250 the yield is also 200 to 300 kilo per hectare, so when the wind move means it triggers the evapotranspiration as a result you may get higher yield if the plant architecture is so good not like that of your pulses these are also positive impact the negative impact would be soil erosion when it takes soils top soils and all erosion occurs sheet erosion, real erosion like rainfall and gully erosion, so wind also causes a soil erosion very greatly varies there is no inhibiting effect and the next one is crop lodging very very important in the case of the tall crops in the case of the heavy crops like banana tall crops like sugarcane wind does lodge the crops when the crops are at maturity, so these are all some disadvantages because of the wind flow, how wind is measured and reported, so wind speed is reported in kilo meter per hour that is very very important and also in knot, knot means being used in navigation and also other things one knots equal to I have given 1.836 kilo meter per hour that is equal to 1.47 miles per hour this can be converted miles is the old unit now we use kilo meter per hour what are the instruments being used manually we can measure the wind speed through cup and emometer, so this speed is like a instrument being fitted in motorcycles and other area the wind speed can be measured the difference between the initial reading and the 24 hour reading will give them the wind speed over 24 hours and divided by 24 then you can get wind speed a kilo meter per hour there is also another one is wind direction, wind direction is very very important where from wind comes where wind goes this is very very important when we were discussing about the temperature transfer plus one place to other place windward direction, wind leeward direction also very very important the windward direction is nothing but the wind where from it comes with leeward direction wind where it goes so this is expressed in degrees 90 degree east south 180 degree west 270 and north 360 degree so the wind direction is very very very important for especially for giving plant protection if you want to make a spray you should not move against the wind direction you should go through leeward direction then only there will not be any drifting and the input efficiency would be there so in that way wind is very very important for our weather forecast and other things in case of something else you talk about cyclone and everything there the core government is the wind speed the low is developed when we were discussing about our cyclone for rainfall process we were discussing that there is extensive air masses which make converged and air depact cooling we were discussing we were discussed already so in this case low is developed low means in the wind speed would be 31 kilometer per hour normally if you go by flight means it is 800 kilometer per hour if you come to bus means 60 kilometer per hour if you go for walking 5 kilometer per hour so the wind speed is 31 kilometer per hour means it is classified as low the low gets intensified then it becomes a depression the wind speed is 31 to 61 kilometer per hour then it gets again super empowered as a cyclonic storm the wind speed is greater than 61 kilometer then severe cyclonic storm greater than 88 kilometers and severe cyclonic storm with a cyclonic circulation core of hurricane winds is more than 180 kilometer per hour so based on the wind speed the cyclone being classified into different things and accordingly we can able to adapt to a man over the situation so in that way wind is very very important in respect of a India example we have south-east monsoon season we have north-east monsoon season so here the things are entirely different south-west monsoon wind normally does not go above 60 kilometer per hour but in the case of the north-east monsoon we get cyclone it is more than 100 kilometer per hour during last last October first week I hope there was a cyclone crossing between our Karekal and Puducherry it goes with 80 kilometer per hour like that it happens so classification of wind speed is very very important to understand and also to protect human life as well as planned life from the damage as caused by the wind with this I complete today's class in the next class we will be discussing something different now we have understood what is atmosphere how the weather elements are very very important and why the rainfall is very important how temperature is measured why our gauge is being considered for crop protection and also wind with this we will meet by next week thank you very much