Extreme rainfall events in Morocco: Spatial dependence and climate drivers
The history of Morocco is replete with tragic natural disasters related to floods that led to numerous casualties and significant material losses. An important driver of these floods is extreme precipitation. Understanding the spatial characteristics of extreme precipitation events is critical to ac...
Published in: | Weather and Climate Extremes |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.wace.2023.100556 https://doaj.org/article/fb1c5ef698774f829b37f58b6da6cdc7 |
id |
ftdoajarticles:oai:doaj.org/article:fb1c5ef698774f829b37f58b6da6cdc7 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:fb1c5ef698774f829b37f58b6da6cdc7 2023-06-18T03:40:56+02:00 Extreme rainfall events in Morocco: Spatial dependence and climate drivers Abdelaziz Chaqdid Alexandre Tuel Abdelouahad El Fatimy Nabil El Moçayd 2023-06-01T00:00:00Z https://doi.org/10.1016/j.wace.2023.100556 https://doaj.org/article/fb1c5ef698774f829b37f58b6da6cdc7 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2212094723000099 https://doaj.org/toc/2212-0947 2212-0947 doi:10.1016/j.wace.2023.100556 https://doaj.org/article/fb1c5ef698774f829b37f58b6da6cdc7 Weather and Climate Extremes, Vol 40, Iss , Pp 100556- (2023) Extreme precipitation Extremal dependence Regional clustering Climate drivers Morocco Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.1016/j.wace.2023.100556 2023-06-04T00:39:30Z The history of Morocco is replete with tragic natural disasters related to floods that led to numerous casualties and significant material losses. An important driver of these floods is extreme precipitation. Understanding the spatial characteristics of extreme precipitation events is critical to accurately predicting, assessing, and mitigating the risks they pose. Yet, the physical drivers of extreme precipitation events (EPEs) in Morocco remain poorly known. To address this gap, we apply a clustering method to divide Morocco into regions that are spatially consistent in terms of extreme precipitation. We then determine the drivers of extreme precipitation by analyzing atmospheric circulation anomalies during the occurrence of some well chosen EPEs in each region. Our findings suggest that Morocco can be subdivided into 5 spatially coherent regions. Extreme precipitation in the northwestern regions is associated with patterns similar to the negative phase of the North Atlantic Oscillation (NAO) with strong upper-level flow anomalies enhanced by Greenland blocking and/or Rossby wave breaking (RWB) episodes. By contrast, the southern regions are associated with relatively weak upper air troughs but strong water vapor transport anomalies from the tropics. Article in Journal/Newspaper Greenland North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Greenland Weather and Climate Extremes 40 100556 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Extreme precipitation Extremal dependence Regional clustering Climate drivers Morocco Meteorology. Climatology QC851-999 |
spellingShingle |
Extreme precipitation Extremal dependence Regional clustering Climate drivers Morocco Meteorology. Climatology QC851-999 Abdelaziz Chaqdid Alexandre Tuel Abdelouahad El Fatimy Nabil El Moçayd Extreme rainfall events in Morocco: Spatial dependence and climate drivers |
topic_facet |
Extreme precipitation Extremal dependence Regional clustering Climate drivers Morocco Meteorology. Climatology QC851-999 |
description |
The history of Morocco is replete with tragic natural disasters related to floods that led to numerous casualties and significant material losses. An important driver of these floods is extreme precipitation. Understanding the spatial characteristics of extreme precipitation events is critical to accurately predicting, assessing, and mitigating the risks they pose. Yet, the physical drivers of extreme precipitation events (EPEs) in Morocco remain poorly known. To address this gap, we apply a clustering method to divide Morocco into regions that are spatially consistent in terms of extreme precipitation. We then determine the drivers of extreme precipitation by analyzing atmospheric circulation anomalies during the occurrence of some well chosen EPEs in each region. Our findings suggest that Morocco can be subdivided into 5 spatially coherent regions. Extreme precipitation in the northwestern regions is associated with patterns similar to the negative phase of the North Atlantic Oscillation (NAO) with strong upper-level flow anomalies enhanced by Greenland blocking and/or Rossby wave breaking (RWB) episodes. By contrast, the southern regions are associated with relatively weak upper air troughs but strong water vapor transport anomalies from the tropics. |
format |
Article in Journal/Newspaper |
author |
Abdelaziz Chaqdid Alexandre Tuel Abdelouahad El Fatimy Nabil El Moçayd |
author_facet |
Abdelaziz Chaqdid Alexandre Tuel Abdelouahad El Fatimy Nabil El Moçayd |
author_sort |
Abdelaziz Chaqdid |
title |
Extreme rainfall events in Morocco: Spatial dependence and climate drivers |
title_short |
Extreme rainfall events in Morocco: Spatial dependence and climate drivers |
title_full |
Extreme rainfall events in Morocco: Spatial dependence and climate drivers |
title_fullStr |
Extreme rainfall events in Morocco: Spatial dependence and climate drivers |
title_full_unstemmed |
Extreme rainfall events in Morocco: Spatial dependence and climate drivers |
title_sort |
extreme rainfall events in morocco: spatial dependence and climate drivers |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.wace.2023.100556 https://doaj.org/article/fb1c5ef698774f829b37f58b6da6cdc7 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic North Atlantic oscillation |
genre_facet |
Greenland North Atlantic North Atlantic oscillation |
op_source |
Weather and Climate Extremes, Vol 40, Iss , Pp 100556- (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2212094723000099 https://doaj.org/toc/2212-0947 2212-0947 doi:10.1016/j.wace.2023.100556 https://doaj.org/article/fb1c5ef698774f829b37f58b6da6cdc7 |
op_doi |
https://doi.org/10.1016/j.wace.2023.100556 |
container_title |
Weather and Climate Extremes |
container_volume |
40 |
container_start_page |
100556 |
_version_ |
1769006294774054912 |