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Projection of Daily Rainfall States Over Tapi Basin Using CMIP5 and CMIP6-Based Global Climate Model
The daily rainfall projections derived using global climate model (GCMs) plays important role in assessment of the future climate over the study area. The current study represents the future daily rainfall states over Tapi basin using k-means clustering and Classification and Regression Tree (CART) modelling. The Tapi basin spreaded over 65,145 km2 and represented by 351 grids of 0.25º resolution. The rainfall data collected from India Meteorological Department (IMD) and General Circulation Model (GCM) outputs (i.e., CanESM2, CNRM-CM5, CanESM5, CNRM-CM6) of Coupled Model Intercomparison Project phase 6 CMIP6 (SSP245), and 5 CMIP5 (RCP4.5) and used in the projection of future daily rainfall states over study area. The projected daily rainfall states from CMIP5 and CMIP6 were compared for both aforementioned GCMs. The results based on the CMIP-5 model indicated that the almost dry rainfall state is increasing over the Tapi basin while results based on CMIP-6 model revealed increase in the medium rainfall state. Overall, the almost dry days are decreasing and high and medium state daily rainfall is increasing over the study area under CMIP6.
Projection of Daily Rainfall States Over Tapi Basin Using CMIP5 and CMIP6-Based Global Climate Model
The daily rainfall projections derived using global climate model (GCMs) plays important role in assessment of the future climate over the study area. The current study represents the future daily rainfall states over Tapi basin using k-means clustering and Classification and Regression Tree (CART) modelling. The Tapi basin spreaded over 65,145 km2 and represented by 351 grids of 0.25º resolution. The rainfall data collected from India Meteorological Department (IMD) and General Circulation Model (GCM) outputs (i.e., CanESM2, CNRM-CM5, CanESM5, CNRM-CM6) of Coupled Model Intercomparison Project phase 6 CMIP6 (SSP245), and 5 CMIP5 (RCP4.5) and used in the projection of future daily rainfall states over study area. The projected daily rainfall states from CMIP5 and CMIP6 were compared for both aforementioned GCMs. The results based on the CMIP-5 model indicated that the almost dry rainfall state is increasing over the Tapi basin while results based on CMIP-6 model revealed increase in the medium rainfall state. Overall, the almost dry days are decreasing and high and medium state daily rainfall is increasing over the study area under CMIP6.
Projection of Daily Rainfall States Over Tapi Basin Using CMIP5 and CMIP6-Based Global Climate Model
Lecture Notes in Civil Engineering
Timbadiya, P. V. (editor) / Singh, Vijay P. (editor) / Sharma, Priyank J. (editor) / Ghate, Aarti S. (author) / Timbadiya, P. V. (author)
International Conference on Hydraulics, Water Resources and Coastal Engineering ; 2021
2023-05-24
15 pages
Article/Chapter (Book)
Electronic Resource
English
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