Universität zu Köln

Modesto Gonzalez Pereira, Mario Jorge, Sanches Fernandes, Luis Filipe, Barros Macario, Eduarda Maria, Gaspar, Sonia Morgado and Pinto, Joaquim Ginete (2015). Climate Change Impacts in the Design of Drainage Systems: Case Study of Portugal. J. Irrig. Drainage Eng-ASCE, 141 (2). RESTON: ASCE-AMER SOC CIVIL ENGINEERS. ISSN 1943-4774

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Abstract

This paper aims to assess the necessity of updating the intensity-duration-frequency (IDF) curves used in Portugal to design building storm-water drainage systems. A comparative analysis of the design was performed for the three predefined rainfall regions in Portugal using the IDF curves currently in use and estimated for future decades. Data for recent and future climate conditions simulated by a global and regional climate model chain are used to estimate possible changes of rainfall extremes and its implications for the drainage systems. The methodology includes the disaggregation of precipitation up to subhourly scales, the robust development of IDF curves, and the correction of model bias. Obtained results indicate that projected changes are largest for the plains in southern Portugal (5-33%) than for mountainous regions (3-9%) and that these trends are consistent with projected changes in the long-term 95th percentile of the daily precipitation throughout the 21st century. The authors conclude there is a need to review the current precipitation regime classification and change the new drainage systems towards larger dimensions to mitigate the projected changes in extreme precipitation. (C) 2014 American Society of Civil Engineers.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Modesto Gonzalez Pereira, Mario Jorge UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanches Fernandes, Luis Filipe UNSPECIFIED UNSPECIFIED UNSPECIFIED Barros Macario, Eduarda Maria UNSPECIFIED UNSPECIFIED UNSPECIFIED Gaspar, Sonia Morgado UNSPECIFIED UNSPECIFIED UNSPECIFIED Pinto, Joaquim Ginete UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-414008
DOI:	10.1061/(ASCE)IR.1943-4774.0000788
Journal or Publication Title:	J. Irrig. Drainage Eng-ASCE
Volume:	141
Number:	2
Date:	2015
Publisher:	ASCE-AMER SOC CIVIL ENGINEERS
Place of Publication:	RESTON
ISSN:	1943-4774
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DURATION-FREQUENCY CURVES; RAINFALL INTENSITY; IDF-CURVES; EXTREME RAINFALL; PRECIPITATION EXTREMES; MODEL; EVENTS; ONTARIO; MAXIMUM; LONDON Multiple languages Agricultural Engineering; Engineering, Civil; Water Resources Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41400