Global Journal of Science Frontier Research, H: Environment & Earth Science, Volume 21 Issue 6

Based on the above table no 3, it is shown that the years 1978-1987 and the year 1988-1997 were affected by West and East direction winds. But in corresponding the year 1998- 2007 and the year 2008- 2019, West direction winds events were increased. The year 1978-1987 were received winds in NW, NE and West direction, but in corresponding year 1988-1997, the west direction had received maximum wind events followed by NW, NE, and SW directions. In the year 1998-2007, West direction received the maximum wind events followed by North, SW, NW and NE, but in the year 2008-2019, WSW had received the maximum wind events followed by West, WNW, and NE, NNE direction. The events of calm winds have increased every period from 13.90% to 19.56% and 36.50% and the number of wind events speed more than 25 km/h is decreased every the year i.e. the year 1978-1987, the year 1988- 1997, the year 1998-2007, and the year 2008-2019 respectively. It is also observed that the total numbers of wind event and extreme wind events are decreasing. Comparison of wind event, and wind speed to know the variation in wind speed, prepare the below table 4: % Wind Events 1978-1987 1988-1997 1998-2007 2008-2019 Wind Speed (km/h) The Yearly Ist half the year IInd half the year The Yearly Ist half the year IInd half the year The Yearly Ist half the year IInd half the year The Yearly Ist half the year IInd half the year 0-5 45.5 41.31 49.63 55.73 49.61 61.83 69.89 67.31 72.61 34.17 29.06 38.69 5—10 28.56 31.64 25.53 27.05 30.05 24.06 18.06 18.20 17.91 39 41.16 36.93 10—15 19.09 19.21 18.97 14.21 16.16 12.28 9.37 10.90 7.79 18.16 18.64 17.76 15-20 3.45 4.67 2.44 2.16 3.10 1.22 2.08 2.69 1.43 7.41 9.03 6.10 20-25 1.74 2.36 1.14 0.60 0.73 0.47 0.29 0.37 0.21 1.24 2.05 0.51 >25 1.56 0.82 2.30 0.25 0.36 0.14 0.32 0.54 0.09 0.03 0.06 0.01 The yearly wind events from speed less than 5 km/h had increased from the year 1978-1987 to the year 1998-2007 but decreased in the year 2008-2019. For remaining wind speed 5-10 km/h, 10-15 km/h, 15-20 km/h, 20-25 km/h were decreased from 1978-1987 to the year 1998-2007 but increased in the year 2008-2019. The wind events speed was more than 25 km/h, was continuously decreased from the year 1978- 1987 to the year 1988-1997, increased in the year 1998-2007 but again decreased in the year 2008-2019. The wind event was received from Ist & IInd half-year are following the yearly trend. The wind events increased from the year 1978-1987 to the year 1998- 2007 but decreased in the year 2008-2019. For remaining wind speed 5-10 km/h, 10-15 km/h, 15-20 km/h, 20-25 km/h decreases from the year 1978-1987 to the year 1998-2007 but increased in the year 2008-2019. The wind events for speed of 15-20 km/h increased from the year 1998 to the year 2019. The wind events speed was more than 25 km/h was continuously decreased from the year 1978-1987 to the year 1988-1997, increased in the year 1998-2007 but again decreased in the year 2008-2019. d) Half-yearly wind data For detailed wind data interpretation, prepared the six-monthly wind data observations and discussed below table 5 and 6 for the Ist & IInd half-year respectively. 1 Global Journal of Science Frontier Research Volume XXI Issue VI Year 2021 13 ( H ) © 2021 Global Journals Version I Role of Solar & Atmospheric Disparity on Climate of Western India, Kota, Rajasthan, India Table 4: Comparison of wind events and wind speed