Abstract
The climate change issue is part of the larger challenge of sustainable development and one of the most important global environmental challenges facing humanity which go far beyond its effect on the environment. In order to understand the climatic change happening in the different agro-climatic regions of Tamil Nadu and to develop strategies to mitigate climatic stress and to optimise productivity monthly, Maximum and Minimum Temperature and Relative Humidity Data during the period 1955–2005 were obtained from the Indian Meteorological Department, Pune. From the basic temperature data, mean maximum, mean minimum and Temperature Humidity Index was computed for each month for the seven agro-climatic regions of Tamil Nadu. Mean maximum temperature was observed at the month of May, and Cauvery Delta zone showed maximum temperature of 38.22 ± 1.33 °C with significant difference of P < 0.01 between the regions. Mean minimum temperature was observed at the month of January, and hilly zone showed minimum temperature of 5.59 ± 1.31 °C with a significant difference of P < 0.01 between the regions. The long-term mean and annual compounded growth rates of Tmax, Tmin and THI were worked out on the basis of the representative areas selected for the study. The annual growth rate of maximum and minimum temperatures showed different patterns for different agro-climatic zones in the study area. The Tmax showed an increase in all the agro-climatic zones except in north-western zone and southern zone. Tmin also showed a positive growth pattern in all agro-climatic zones except in north-western zone and southern zone. The annual growth rate of THI showed different patterns for different agro-climatic zones. Five agro-climatic zones, viz., north-eastern zone, western zone and hilly zones, Cauvery Delta zone and high rainfall zone, were showing a positive annual compounded growth rate for both morning and evening THI. In north-western zone the growth in THI was limited to morning and the evening THI showed a negative growth. Southern zone showed a negative annual compounded growth rate for both morning and evening THI.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Amin MGM, Ali MH, Islam AKMR (2004) Agro-climatic analysis for crop planning in Bangladesh. Bangladesh J Agric Eng 15(1 & 2):1–40
Cohn TA, Lins HF (2005) Nature’s style: naturally trendy. Geophys Res Lett 32(23):402. doi:10.1029/2005GL024476
Geethalakshmi V, Lakshmanan A, Rajalakshmi D, Jagannathan R, GummidiSridhar, Ramaraj AP, Bhuvaneswari K, Gurusamy L, Anbhazhagan R (2011) Climate change impact assessment and adaptation strategies to sustain rice production in Cauvery basin of Tamil Nadu. Cur Sci 101(3):342–347. Retrieved from: http://www.currentscience.ac.in/Volumes/101/03/0342.pdf
IPCC (2007) Summary for policymakers. In: Solomon SD et al (eds) Climate change 2007: the physical science basis. Cambridge University Press, Cambridge. Retrieved from: http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-spm.pdf
Jain SK, Kumar V (2012) Trend analysis of rainfall and temperature data for India. Cur Sci 102(1):38–49. Retrieved from: http://www.currentscience.ac.in/Volumes/102/01/0037.pdf
Mehrotra R (1999) Sensitivity of runoff, soil moisture and reservoir design to climate change in central Indian river basins. Clim Chang 42:725–757. doi:10.1023/A: 1005496932343
MOEF (2010) Climate change and India: a ‘4 × 4’ assessment. Ministry of Environment and Forests, New Delhi. Retrieved from: http://envfor.nic.in/sites/default/files/fin-rpt-incca_0.pdf
Pal I, Al-Tabbaa A (2010) Long-term changes and variability of monthly extreme temperatures in India. Theor Appl Climatol 100:45–56. doi:10.1007/s00704-009-0167-0
Pant GB, Hingane LS (1988) Climatic changes in and around the Rajasthan desert during the 20th century. Int J Climatol 8:391–401. doi:10.1002/joc.3370080406
Pant GB, Kumar KR (1997) Climates of South Asia. Wiley, Chichester. doi: 10.1002/(SICI)1097-0088(199804)18:5<581::AID-JOC267>3.0.CO;2
Pramanik SK, Jagannathan P (1954) Climatic changes in India rainfall. Indian J Meteorol Geophys 4:291–309
Rao PG (1993) Climatic changes and trends over a major river basin in India. Clim Res 2:215–223. Retrieved from: http://www.int-res.com/articles/cr/2/c002p215.pdf. doi:10.3354/cr002215
Rupakumar K, Krishankumar PGB (1994) Diurnal asymmetry of surface temperature trends over India. Geophys Res Lett 21:677–680. doi:10.1029/94GL00007
Srivastava HN, Dewan BN, Dikshit SK, Rao PGS, Singh SS, Rao KR (1992) Decadal trends in climate over India. Mausam 43:7–20
Tadross MA, Hewitson BC, Usman MT (2005) The interannual variability of the onset of the maize growing season over South Africa and Zimbabwe. J Clim 18:3356–3372. doi:http://dx.doi.org/10.1175/JCLI3423.1
Acknowledgement
The authors acknowledge their sincere thanks to the National Data Centre, Indian Meteorological Department, Shivajinagar, Pune - 411 005, Maharashtra for providing the data.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer India
About this chapter
Cite this chapter
Sivakumar, T., Suraj, P.T., Jayashree, P.C. (2015). Trends in Climatic Change in the Last 50 Years at Seven Agro-climatic Regions of Tamil Nadu. In: Singh, A., Dagar, J., Arunachalam, A., R, G., Shelat, K. (eds) Climate Change Modelling, Planning and Policy for Agriculture. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2157-9_19
Download citation
DOI: https://doi.org/10.1007/978-81-322-2157-9_19
Published:
Publisher Name: Springer, New Delhi
Print ISBN: 978-81-322-2156-2
Online ISBN: 978-81-322-2157-9
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)