IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 1 - KEYNOTE AND INVITED LECTURES : Detection and Attribution of Climate Change in Hydrology: an Overview
Detection and Attribution of Climate Change in Hydrology: an Overview
Author : P P Mujumdar and Arpita Mondal
For studying the effects of climate change in regional hydrology as well as for obtaining reliable hydrologic projections, it is important to understand, detect and attribute human-induced climate change in the observed hydrological changes in the recent past. Over the last two decades, detection and attribution (D&A) of climate change has emerged as a formal tool to decipher the complex causes of changes in the climate. This article summarises the recent works of the authors conducted on D&A of human-induced climate change in regional hydrology, addressing scale issues and considering variability across various climate model simulations. The fingerprint method of D&A is used to study changes in regional monsoon precipitation and streamflow in the Mahanadi river basin, along with a statistical downscaling model to obtain precipitation corresponding to the various climate model runs. A genetic programming-based rainfall-runoff model is used to compute corresponding streamflows from the precipitation. Thereafter, focussing on detection of anthropogenic emission-induced climate change in global and regional extreme precipitation, consideration of non-stationarity in the D&A analysis is found to produce significant differences at regional scales important for impact assessment studies.
File Size : 510,734 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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