• BE Yogendra
• Chinmayi B Y

Flow characteristics of a stream and spatial analysis of rainfall data for the catchment are very essential for any water resource planning and management. Construction of Flow Duration Curve (FDC) at a section of the stream and spatial variation map of precipitation for the catchment of the stream provide the flow characteristics and spatial vitiation of rainfall data for any water resource project. Hydrologists are required to overcome the challenges posed by the lack of availability of historical rainfall and streamflow data in an ungauged river basin. The present investigation is carried out on Malaprabha river basin to assess the future streamflow and rainfall. Five downscaled General Circulation Models (GCMs) (GFDL-ESM2M, HadGEM2-ES, IPSL-CM5A-LR, MIROC and NoerESM1-M) for four Representative Concentration Pathway (RCP) emission scenarios (RCP-2.6, RCP-4.5, RCP-6.0 and RCP-8.5) in each of the GCM models are considered for the future projection of the hydrometeorological variables (rainfall, maximum temperature, minimum temperature, solar radiation, humidity and wind speed). Calibrated and validated Soil Water Assessment Tool (SWAT) is used for the future projection of streamflows for the time period 2006-2085. Coefficient of determination (R2) and Nash-Sutcliffe Efficiency (NSE) are used to calibrate and validate the SWAT model for the Malaprabha basin by using observed streamflow data for the period of 1975-2015. FDCs are prepared for the projected streamflow are useful information for the management of water resources and to maintain the low flows during the dry season for the preservation of the ecosystem of the stream.

Flow Duration Curves (FDC), Soil Water Assessment Tool (SWAT), Coefficient of Determination (R2) and Nash-Sutcliffe Efficiency (NSE).

"Spatial analysis of rainfall and FDC to assess the effect of climate change in Malaprabha basin", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.490-495, May-2019, Available :http://www.jetir.org/papers/JETIR1905R74.pdf

"Spatial analysis of rainfall and FDC to assess the effect of climate change in Malaprabha basin", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp490-495, May-2019, Available at : http://www.jetir.org/papers/JETIR1905R74.pdf