Regional approach for the analysis of annual maximum daily precipitation in northern Morocco

Regional approach for the analysis of annual maximum daily precipitation in northern Morocco

Information on extreme rainfall frequencies is required for Urban Drainage (UD) networks design. In this paper, the Regional Frequency Analysis (RFA), based on the L-moments, is used to: (i) analyze the trend of Annual Maximum Precipitation (AMP) over two analysis periods (1970–1989 and 1990–2015),...

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Main Authors: Mohammed Moujahid, Laila Stour, Ali Agoumi, Amina Saidi
Format: Article
Language:English
Published: Elsevier 2018-09-01
Series:Weather and Climate Extremes
Online Access:http://www.sciencedirect.com/science/article/pii/S2212094717301639
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spelling doaj-16e399b5eff0442c8cf2a630ad7bec2d2020-11-25T01:12:30ZengElsevierWeather and Climate Extremes2212-09472018-09-01214351Regional approach for the analysis of annual maximum daily precipitation in northern MoroccoMohammed Moujahid0Laila Stour1Ali Agoumi2Amina Saidi3Department of Process and Environment Engineering, Faculty of Sciences and Technologies of Mohammedia, B.P.146, Mohammedia, Morocco; Corresponding author.Department of Process and Environment Engineering, Faculty of Sciences and Technologies of Mohammedia, B.P.146, Mohammedia, MoroccoDepartment of Hydraulic, Environment and Climate, Hassania School of Public Works, Km 7. Route d’El Jadida, Casablanca, MoroccoNational Meteorological Office, B.P 8106 Oasis, Casablanca, MoroccoInformation on extreme rainfall frequencies is required for Urban Drainage (UD) networks design. In this paper, the Regional Frequency Analysis (RFA), based on the L-moments, is used to: (i) analyze the trend of Annual Maximum Precipitation (AMP) over two analysis periods (1970–1989 and 1990–2015), (ii) estimate the regional Intensity-Duration-Frequency (IDF) curves of northern Morocco and (iii) assess the impact of the changes in rainfall intensities on the UD networks design during analysis periods.In reference to Hosking & Wallis (1997) and Alila, (1999), the Generalized Extreme Value (GEV) distribution has been used as a regional distribution to estimate regional quantiles for the analysis periods (1970–1999 and 1990–2015). The results show an increase up to 9% for quantiles used in UD networks design. Keywords: Regional frequency analysis, Extremes precipitations, L-moments, GEV distribution, Urban drainagehttp://www.sciencedirect.com/science/article/pii/S2212094717301639
collection DOAJ
language English
format Article
sources DOAJ
author Mohammed Moujahid
Laila Stour
Ali Agoumi
Amina Saidi
spellingShingle Mohammed Moujahid
Laila Stour
Ali Agoumi
Amina Saidi
Regional approach for the analysis of annual maximum daily precipitation in northern Morocco
Weather and Climate Extremes
author_facet Mohammed Moujahid
Laila Stour
Ali Agoumi
Amina Saidi
author_sort Mohammed Moujahid
title Regional approach for the analysis of annual maximum daily precipitation in northern Morocco
title_short Regional approach for the analysis of annual maximum daily precipitation in northern Morocco
title_full Regional approach for the analysis of annual maximum daily precipitation in northern Morocco
title_fullStr Regional approach for the analysis of annual maximum daily precipitation in northern Morocco
title_full_unstemmed Regional approach for the analysis of annual maximum daily precipitation in northern Morocco
title_sort regional approach for the analysis of annual maximum daily precipitation in northern morocco
publisher Elsevier
series Weather and Climate Extremes
issn 2212-0947
publishDate 2018-09-01
description Information on extreme rainfall frequencies is required for Urban Drainage (UD) networks design. In this paper, the Regional Frequency Analysis (RFA), based on the L-moments, is used to: (i) analyze the trend of Annual Maximum Precipitation (AMP) over two analysis periods (1970–1989 and 1990–2015), (ii) estimate the regional Intensity-Duration-Frequency (IDF) curves of northern Morocco and (iii) assess the impact of the changes in rainfall intensities on the UD networks design during analysis periods.In reference to Hosking & Wallis (1997) and Alila, (1999), the Generalized Extreme Value (GEV) distribution has been used as a regional distribution to estimate regional quantiles for the analysis periods (1970–1999 and 1990–2015). The results show an increase up to 9% for quantiles used in UD networks design. Keywords: Regional frequency analysis, Extremes precipitations, L-moments, GEV distribution, Urban drainage
url http://www.sciencedirect.com/science/article/pii/S2212094717301639
work_keys_str_mv AT mohammedmoujahid regionalapproachfortheanalysisofannualmaximumdailyprecipitationinnorthernmorocco
AT lailastour regionalapproachfortheanalysisofannualmaximumdailyprecipitationinnorthernmorocco
AT aliagoumi regionalapproachfortheanalysisofannualmaximumdailyprecipitationinnorthernmorocco
AT aminasaidi regionalapproachfortheanalysisofannualmaximumdailyprecipitationinnorthernmorocco
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