Indian Forum for Water Adroit

Intercomparison and trend detection of CMIP5 and CMIP3 temperatures over India

Karthikeyan L

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  • Institute : Indian Institute of Science, Bangalore
  • Programming language : Matlab, R
Work carried out by Dr. Sonali along with Prof D. Nagesh Kumar and Prof. R. S. Nanjundaiah has been published in Theoretical and Applied Climatology.

Title: Intercomparison of CMIP5 and CMIP3 simulations of the 20th century maximum and minimum temperatures over India and detection of climatic trends

Description: Climate change impact assessment has become one of the most important subjects because of the recent increase in frequency of extreme events. This study analyzed the skills of climate models from CMIP3 and CMIP5 for capturing the maximum and minimum temperatures (Tmax and Tmin) over India. Skills viz. Skill_r, Skill_s, Skill_rmse, Skill_All, and behavior viz. pattern correlation, pattern rmse are used to assess the ability of the 46 climate models. Skill_All, which is an intersection of the three metrics viz. Skill_r, Skill_s, Skill_rmse has been introduced for the first time. There is an enhancement in skill of models from CMIP5 compared to CMIP3. Significant trends in Tmin are observed  during most of the seasons over the entire Indian region during last four decades. This establishes the signature of climate change over most parts of India.

Citation:
Sonali, P., Kumar, D. N., & Nanjundiah, R. S. (2016). Intercomparison of CMIP5 and CMIP3 simulations of the 20th century maximum and minimum temperatures over India and detection of climatic trends. Theoretical and Applied Climatology, 1-25.http://link.springer.com/article/10.1007%2Fs00704-015-1716-3

Prof. Nagesh Kumar can be reached at dasikanagesh@gmail.com