Evolution of weather parameters and trend analysis over Junagadh, Gujarat

Weather parameters and trend analysis

Authors

  • SS CHINCHORKAR Anand Agricultural university,Anand,Gujarat
  • R SUBBAIAH AAU, Godhra
  • M KULSHRESTHA AAU, Anand
  • V B VAIDYA AAU,Anand

DOI:

https://doi.org/10.21921/jas.v9i01.9902

Keywords:

Climate change, rainfall,temperature, mann-kendalltest, standard deviation and coefficient of variation

Abstract

Climate change is one of the most important worldwide issues talked among the scientists and researchers. The temperature and rainfall trends are analyzed for meteorological data of Junagadh station in Gujarat. India over approximately last three decades stretching between years 1971 to 2013. The long–term change in temperature and rainfall has been assessed by linear trend analysis. The increasing trend in mean monthly maximum temperature (MMAX) and total mean rainfall (TMRF) is confirmed by Mann-Kendall trend test. It is evident from that monthly mean temperature have increased significantly for all the months except the months of April and October for which a very weak decrease in mean maximum temperature is observed. This implies that at Junagadh, the highest increase in temperature occurred in November (0.0210C) during 1980-2011 period. The annual mean of monthly maximum temperatures (MMAX) observed an increasing trend having an annual decreasing of 0.0040C year during 1980-2011. It is evident TMRF have increased for the months April, May August and September whereas it shows decreasing trend in January, Feb, March, June, July, October, November and December. This implies that at Junagadh, the highest increase in TMRF occurs in August and increased by (0.029 mm) during the last 1980-2011. The highest decrease in TMRF occurs in June and decreased by (2.153mm) during the same period. The annual mean of total monthly rainfall observed a decreasing trend having an decrease of 0.249 mm/year during the last 31 years.

Author Biographies

SS CHINCHORKAR, Anand Agricultural university,Anand,Gujarat

Assistant Professor, Department of Basic Engineering and Applied Sciences, Polytechnic in Agril., Engg., AAU, dahod-389160

R SUBBAIAH, AAU, Godhra

Principal and Dean, College of Agricultural Engineering and Technology, AAU, Godhra-389001

M KULSHRESTHA, AAU, Anand

Professor and Head, Department of Basic Engineering and Applied Sciences BACA,BACA,AAU,Anand.

V B VAIDYA, AAU,Anand

Assistant Professor, Department of Agricultural Meteorology, BACA,AAU,Anand

References

Arora, M., Goel, N.K., Singh, P. (2005). Evaluation of temperature trends over India.

Hydrological Sciences Journal,50(1): 81–93.

Beena Shah. (2010). Global and National Concerns on Climate Change, University News,

(24):15-23.

Chaudhary, A., Abhyankar, V.P. (1979). Does precipitation pattern foretell Gujarat climate

becoming arid, Mausam, 30: 85–90.

Chinchorkar, S. S., Singh, P. K., Vaidya.,V. B., Pandey Vays.(2013). Inter annual

variability and trends of south west monsoon rainfall over Anand in Gujarat state.

Mausam, 65(4):553-558.

Dash, S. K., Jenamani, R.K., Kalsi, S.R., Panda, S. K. (2007). Some evidence of climate

change in twentieth-century India. Climatic Change, 85:299–321.

Deshmukh, D. T., Lunge, H. S., (2013). A Study of Temperature and Rainfall Trends In

Buldana District Of Vidarbha, India. International Journal of Scientific & Technology

Research,2(2).

Fulekar, M.H., Kale, R.K.(2010). Impact of Climate Change: Indian Scenario,? University

News, 48(24):15-23.

Goswami, B.N., Venugopal, V., Sengupta, D., Madhusoodanam, M.S., Xavier, P.K. (2006).

Increasing trends of extreme rain events over Indiain, a warming environment. Science,

: 1442–1445.

IPCC.(2007).Climate Change-A Synthesis Report of the IPCC,” Technical Report, Inter-

governmental Panel on Climate Change 2007.

Jagannathan, P., Parthasarathy, B. (1973). Trends and periodicities of rainfall over India.

Monthly Weather Review, 101: 371–375.

Koteswaram, P., Alvi, S.M.A.(1969). Secular trends and periodicities in rainfall at west

coast stations in India. Current Science, 38: 229–231.

Khan, TMA., Singh, O. P., Sazedur, Rahman, M. D. (2000). Recent sea level and sea

surface temperature trends along the Bangladesh coast in relation to the frequency of

intense cyclones. Marine Geodesy, 23:103–116.

Kumar, V., Singh, P., Jain, S.K. (2005). Rainfall trends over Himachal Pradesh, Western

Himalaya, India. Conference, Shimla, 20–22 April, 2005.

Kumar, V., Jain, S. K., Singh, Y. (2010). Analysis of long-term rainfall trends in India.

Hydrological Sciences Journal, 55(4): 484–496.

Khavse, R., Deshmukh, R., Manikandan, N., Chaudhary, L., Kaushik, D. (2015).

Statistical Analysis of Temperature and Rainfall Trend in Raipur District of Chhattisgarh.

Current World Environment, 10(1):305-312.

Lal, M. (2001). Climatic change implications for India’s water resources. Journal of

Indian Water Resource Society, 21: 101–119.

Lal, M. (2003). Global climate change: India’s monsoon and its variability. Journal of

Environmental Studies & Policy, 6: 1–34.

Mann, H.B., (1945), Nonparametric tests against trend, Econometrica, 13, pp 245-259. Mooley, D.A., Parthasarthy, B. (1984). Fluctuations of all India summer monsoon rainfall

during 1871–1978. Climatic Change, 6: 287–301.

Mirza, M.Q. (2002). Global warming and changes in the probability of occurrence of

floods in Bangladesh and implications. Global Environmental Change, 12: 127–138.

Min, S. K., Kwon, W. T., Park, E. H., Choi, Y. (2003). Spatial and temporal comparisons

of droughts over Korea with East Asia. International Journal of Climatology, 23: 223–

Parthasarthy, B. Munot, A.A. and Kothawale, D. R. (1988). Regression model for estimation of India’s food grain production from summer monsoon rainfall. Agricultural and Forest Meteorology, 42: 167-182.

Pant, G. B., Kumar, K. R. (1997). Climates of South Asia. Wiley: Chichester, UK. Raghavendra, V. K. (1974). Trends and periodicities of rainfall in subdivisions of

Maharashtra state. Indian Journal of Meteorology and Geophysics, 25: 197–210.

Rupa Kumar, K., Krishna Kumar, K., Pant, G. B. (1994). Diurnal asymmetry of surface

temperature trends over India. Geophysical Research Letters, 21(8): 677–680.

Ritter, M. E. (2006). The physical environment: an introduction to physical Geography

availableonline at: http://www.uwsp.edu/geo/faculty/ritter/geog101 /textbook /title_ page.

html.

Srivastava, H. N., Dewan, B. N., Dikshit, S. K., Rao, PGS., Singh. S. S., Rao, K. R.(1992). Decadal trends in climate over India. Mausam, 43: 7–20.

Shrestha, A.B., Wake, C.P., Dibb, J.E., Mayewski, P.A. (2000). Precipitation fluctuations in the Nepal Himalaya and its vicinity and relationship with some large scale climatological parameters. International Journal of Climatology, 20: 317–327.

Thapliyal, V., Kulshrestha, S. M. (1991). Decadal changes and trends over India. Mausam, 42:333–338.

Vinnikov, K., Graisman, P.Y., Lugina, K.M. (1990). Empirical data on contemporary

global climatic changes (temperature and precipitation). Journal of Climate, 3: 662–677.

Webber, J. and Hawkins, C. (1980). Statistical Analysis Application to Business and Economics, Harper and Row New York.

Downloads

Published

2022-03-17