Drought and climatic change impact on streamflow in small watersheds

Tigkas, D; Vangelis, H; Tsakiris, G

dc.contributor.author	Tigkas, D	en
dc.contributor.author	Vangelis, H	en
dc.contributor.author	Tsakiris, G	en
dc.date.accessioned	2014-03-01T11:46:45Z
dc.date.available	2014-03-01T11:46:45Z
dc.date.issued	2012	en
dc.identifier.issn	00489697	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/38028
dc.subject	Climate change scenarios	en
dc.subject	Drought characterisation	en
dc.subject	Hydrological drought forecasting	en
dc.subject	Rainfall-runoff model	en
dc.subject	Reconnaissance drought index (RDI)	en
dc.subject	Streamflow drought index (SDI)	en
dc.title	Drought and climatic change impact on streamflow in small watersheds	en
heal.type	other	en
heal.identifier.primary	10.1016/j.scitotenv.2012.08.035	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.scitotenv.2012.08.035	en
heal.publicationDate	2012	en
heal.abstract	The paper presents a comprehensive, thought simple, methodology, for forecasting the annual hydrological drought, based on meteorological drought indications available early during the hydrological year. The meteorological drought of 3, 6 and 9 months is estimated using the reconnaissance drought index (RDI), whereas the annual hydrological drought is represented by the streamflow drought index (SDI). Regression equations are derived between RDI and SDI, forecasting the level of hydrological drought for the entire year in real time. Further, using a wide range of scenarios representing possible climatic changes and drought events of varying severity, nomographs are devised for estimating the annual streamflow change. The Medbasin rainfall-runoff model is used to link meteorological data to streamflow. The later approach can be useful for developing preparedness plans to combat the consequences of drought and climate change. As a case study, the area of N. Peloponnese (Greece) was selected, incorporating several small river basins. © 2012 Elsevier B.V. All rights reserved.	en
heal.journalName	Science of the Total Environment	en
dc.identifier.doi	10.1016/j.scitotenv.2012.08.035	en