Автор:Muhammad Zia ur Rahman Hashmi,Asaad Shamseldin and Bruce Melville Год: 2012 Издание:LAP Lambert Academic Publishing Страниц: 252 ISBN: 9783848488438 Global Circulation Models (GCMs) are a major tool used for climate change projections under different emission scenarios. However, for assessing the hydrological impacts of climate change at watershed scale, GCM outputs cannot be used directly owing to the mismatch in spatial resolution between the GCMs and hydrological models. Thus a downscaling scheme (either statistical or dynamical) is employed. For hydrologic impact assessment studies, statistical downscaling is usually preferred over dynamical downscaling and among the variables usually downscaled, precipitation downscaling is more challenging than downscaling of other climatological variables. Therefore, this book is specifically focusing on addressing some of the contemporary issues in statistically downscaling of precipitation at watershed scale. Studies presented in this book make use of two widely used downscaling methods i.e. multiple linear regression and stochastic weather generator. Also, a new downscaling methodology...
