International Journal of Agricultural Engineering

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Study of Trends in Weather Parameters at Akola Using Moving Average Technique


Affiliations
1 Department of Irrigation and Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, AKOLA (M.S.), India
     

   Subscribe/Renew Journal


Climatic parameters (maximum temperature, minimum temperature, wind speed, bright sunshine hours, morning relative humidity, evening relative humidity and open pan evaporation) for 37 years (1971-2007) were collected from Agricultural Meteorological Observatory Dr. PDKV, Akola. Mean monthly climatic data for the period were used to determine reference evapotranspiration (ET0) by FAO-56 Penman-Monteith method. The trends of change of these parameters were analyzed by working out seven years moving average and forming regression equations. The mean monthly maximum air temperature showed slightly decreasing trend for most of the months during the year except February, August and December. Whereas, there was unsteady variation in minimum air temperature and showed linear increasing trend during monsoon period. There was strong variation in wind speed and bright sunshine hours and showed continuous linear decreasing trend. However, mean monthly morning and evening relative humidity showed the linear increasing trend for most of the period of the year. The mean monthly pan evaporation also showed the decreasing trend throughout year. There was major variation in monthly reference evapotranspiration and showed linear decreasing trend for all the months of the year.

Keywords

Moving Averages, Reference Evapotranspiration, Trend Analysis.
Subscription Login to verify subscription
User
Notifications
Font Size


  • Allen, R.G., Pereira, L.S., Raes, D. and Smith, M. (1998). Crop evapotranspiration–Guidelines for computing crop water requirements, FAO Irrigation and Drainage, paper 56pp.

  • Barrow, E.M., Hulme, M., Semenove, M. A. and Brooks, R. J. (2000). Climate change scenarios. In: Climate change climatic variability and agriculture in Europe (Ed. Downing, T.E., P. A. Harrison, R. E. Butterfield and K. G. Londsdale) European Comission, Brussel, Brazil.

  • Chattopadhyay, N. and Hulme, M. (1997). Evaporation and potential evapotranspiration in India under conditions of recent and future climate change. Agric. & Forest Meteorol., 87:55-73.

  • Doll, P. (2002). Impact of climate change and variability on irrigation requirements:A global perspective.Climatic Change, Netherlands, 54:269–293.

  • Easterling, D. R., Evans, J. L., Goisman, Y. A. P., Carl, T. R., Kunkel, K. E. and Ambenje, A.P. (1999).Observed variability and trends in extreme climatic evens.A Brief Review Bull. American Meteorol. Soc., 81:417-425.

  • Feng J., Yan, D., Li, C., Bao, S. and Gao, Y. ( 2012). Assessing the impact of climate variability on potential evapotranspiration during the past 50 years in north china.Food Agric. & Environ., 10:1392-1398.

  • Hulme, M. G., Jenkins, X. J., Turanpenny, J. R., Mitchel, T.B., Jones, R.G., Lowe J., Murphy, J. M., Hessell, D., Boorman, P., McDonald, R. and Hill, S. (2002).Climate change scenarios for the 21st Century for the UK.UKCIP 02-Technical Report, University of Oxford, Oxford, United Kingdom.

  • Johnston, A. E. (2000). Some aspects of nitrogen use efficiency in arable agriculture. K. Sogs-o. Lantbr.Akad.TIdskr.138-9.

  • Jolankai, M. (2005). Effect of climate change on plant cultivation, AGRO-21 Fuzete, 41:47-58.

  • Marton, L. (2004). Rainfall and fertilization effect on crop yield in a global climate change. Proc. Ole of multipurpose agriculture in sustaining global environment- AGROENVIRON 2004 (Udine, 20-24.October 2004).Part-3.41-456.

  • Marton, L. (2005). Disaster as drought and rainfall excess and artificial fertilization effect on crop yield. Proc. International Conference on Energy, Environment and Disasters, IN SEED 2005 (Charlotte, 24-30, July 2005), 49-50 ISEG. Charlotte.

  • Rajendra, K. P. (2004). Foreword. IPCC, NEW DELHI, INDIA.

  • Szasz, G. (2005). Climatic instability causing variability in crop output in the Carpathian Basin. AGRO-21, Fuzetek, 40:33-69.

  • Tang, B., Tong, L., Kang, S. and Zhang, L. (2011). Impacts of climate variability on reference evapotranspiration over 58 years in the Haihe river basin of north China. Agric. Water Mgmt., 98:1660–1670.

  • Varallayay, G. Y. (2005). Possible pedological effects of climate changes in Kisalfield.AGRO-21, Fuzetek, 43.

  • Zhang, X. and Cai, X. (2013). Climate change impacts on global agricultural water deficit. Geophysic. Res. Lett., 40:1111–1117.


Abstract Views: 404

PDF Views: 0




  • Study of Trends in Weather Parameters at Akola Using Moving Average Technique

Abstract Views: 404  |  PDF Views: 0

Authors

R. V. Meshram
Department of Irrigation and Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, AKOLA (M.S.), India
M. M. Deshmukh
Department of Irrigation and Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, AKOLA (M.S.), India
M. V. Kawle
Department of Irrigation and Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, AKOLA (M.S.), India
S. B. Wadatkar
Department of Irrigation and Drainage Engineering, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, AKOLA (M.S.), India

Abstract


Climatic parameters (maximum temperature, minimum temperature, wind speed, bright sunshine hours, morning relative humidity, evening relative humidity and open pan evaporation) for 37 years (1971-2007) were collected from Agricultural Meteorological Observatory Dr. PDKV, Akola. Mean monthly climatic data for the period were used to determine reference evapotranspiration (ET0) by FAO-56 Penman-Monteith method. The trends of change of these parameters were analyzed by working out seven years moving average and forming regression equations. The mean monthly maximum air temperature showed slightly decreasing trend for most of the months during the year except February, August and December. Whereas, there was unsteady variation in minimum air temperature and showed linear increasing trend during monsoon period. There was strong variation in wind speed and bright sunshine hours and showed continuous linear decreasing trend. However, mean monthly morning and evening relative humidity showed the linear increasing trend for most of the period of the year. The mean monthly pan evaporation also showed the decreasing trend throughout year. There was major variation in monthly reference evapotranspiration and showed linear decreasing trend for all the months of the year.

Keywords


Moving Averages, Reference Evapotranspiration, Trend Analysis.

References