Please use this identifier to cite or link to this item:
Title: Statistical Downscaling of GCM Output and Simulation of Rainfall Scenarios for Brahmani Basin
Authors: Sahoo, Lasyamayee Lopamudra
Patra, Kanhu Charan
Keywords: Climate Change
Statistical downscaling model (SDSM)
Brahmani- Baitarani River system
Issue Date: Dec-2018
Citation: 23rd International Conference on Hydraulics, Water Resources and Coastal Engineering ( HYDRO 2018), Patna,India, 19-21 December 2018.
Abstract: The change in climate threats the abundance of usable water across the globe. Most of the river basins are unable to cope up with the impact of climate change. Hence, assessing the future scenario has become the need of today. General Circulation Model(GCM) provide information at a course grid resolution. Downscaling can help in getting the information at a local scale level from GCM data which will help the researchers to work on a regional level. Statistical downscaling method is preferred over dynamic downscaling method due to its less complex calculations. Statistical downscaling model (SDSM) is widely used in prediction of future climate scenarios. Here Brahmani-Baitarani river basin is selected as a case study for the downscaling of precipitation in the monthly time scale. SDSM version 4.2 is used as the model and precipitation is taken as the predictand parameter. Predictors are chosen from the NCEP global variables like air temperature, geopotential height, specific humidity, zonal and meridional wind velocities, precipitable water and surface pressure data. The outcome of the study shows that the mean rainfall will increase in this river basin in the 2040s. Increase in dry spell and decrease in wet spell also observed in the results.
Description: Copyright of this document belongs to proceedings publisher.
Appears in Collections:Conference Papers

Files in This Item:
File Description SizeFormat 
2018_HYDRO_LLSahoo_StatisticalDownscaling.pdfConference paper862.8 kBAdobe PDFView/Open    Request a copy

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.