Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades
Knowledge of wave climate is essential for efficient management of the world’s coastal areas. Senegal is a relevant case, given its high coastal vulnerability to energetic wave conditions. This study investigates wave climates along the coastal zone of Senegal based on a new high-resolution hindcast...
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ftdoajarticles:oai:doaj.org/article:16f8d40191ed4587b6b5962da13935cc 2023-08-20T04:08:26+02:00 Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades Marcellin Seujip Samou Xavier Bertin Issa Sakho Alban Lazar Mamadou Sadio Mouhamadou Bachir Diouf 2023-07-01T00:00:00Z https://doi.org/10.3390/atmos14071142 https://doaj.org/article/16f8d40191ed4587b6b5962da13935cc EN eng MDPI AG https://www.mdpi.com/2073-4433/14/7/1142 https://doaj.org/toc/2073-4433 doi:10.3390/atmos14071142 2073-4433 https://doaj.org/article/16f8d40191ed4587b6b5962da13935cc Atmosphere, Vol 14, Iss 1142, p 1142 (2023) wave climate WaveWatch III wave climatology wave trends remote climatic modes in situ data Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.3390/atmos14071142 2023-07-30T00:36:26Z Knowledge of wave climate is essential for efficient management of the world’s coastal areas. Senegal is a relevant case, given its high coastal vulnerability to energetic wave conditions. This study investigates wave climates along the coastal zone of Senegal based on a new high-resolution hindcast covering the period 1980–2021. This study evaluates the average, seasonal, and extreme values for the significant wave heights (Hs), periods (T m02 /T p ), and mean directions (DIR). In boreal winter, the wave climate is dominated by swells coming from the North-Atlantic lows. In contrast, in boreal summer, the Southern Coast (from Dakar to Casamance) is exposed to swells generated in the South Atlantic Ocean. Throughout their refraction around the Dakar Peninsula, NW swells rotate by ~100° from NW to SW, while their Hs is roughly halved when reaching the Southern Coast of Senegal. Over the studied period, trends in Hs are weak (~0.6 cm.decade −1 ) on the Northern Coast and double on the Southern Coast (~1.2 cm.decade −1 ), mostly due to an increase during boreal summer (2 cm.decade −1 ). The wave periods show weak trends (~0.05 s.decade −1 ), and DIRs show weak counterclockwise rotation (−1°.decade −1 ). These trends are explained by the main climate modes of the Atlantic Ocean (NAO/EA during winter, SAM during summer) and are important for future research and long-term monitoring of the Senegalese Coast. Article in Journal/Newspaper North Atlantic South Atlantic Ocean Directory of Open Access Journals: DOAJ Articles Atmosphere 14 7 1142 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
wave climate WaveWatch III wave climatology wave trends remote climatic modes in situ data Meteorology. Climatology QC851-999 |
spellingShingle |
wave climate WaveWatch III wave climatology wave trends remote climatic modes in situ data Meteorology. Climatology QC851-999 Marcellin Seujip Samou Xavier Bertin Issa Sakho Alban Lazar Mamadou Sadio Mouhamadou Bachir Diouf Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades |
topic_facet |
wave climate WaveWatch III wave climatology wave trends remote climatic modes in situ data Meteorology. Climatology QC851-999 |
description |
Knowledge of wave climate is essential for efficient management of the world’s coastal areas. Senegal is a relevant case, given its high coastal vulnerability to energetic wave conditions. This study investigates wave climates along the coastal zone of Senegal based on a new high-resolution hindcast covering the period 1980–2021. This study evaluates the average, seasonal, and extreme values for the significant wave heights (Hs), periods (T m02 /T p ), and mean directions (DIR). In boreal winter, the wave climate is dominated by swells coming from the North-Atlantic lows. In contrast, in boreal summer, the Southern Coast (from Dakar to Casamance) is exposed to swells generated in the South Atlantic Ocean. Throughout their refraction around the Dakar Peninsula, NW swells rotate by ~100° from NW to SW, while their Hs is roughly halved when reaching the Southern Coast of Senegal. Over the studied period, trends in Hs are weak (~0.6 cm.decade −1 ) on the Northern Coast and double on the Southern Coast (~1.2 cm.decade −1 ), mostly due to an increase during boreal summer (2 cm.decade −1 ). The wave periods show weak trends (~0.05 s.decade −1 ), and DIRs show weak counterclockwise rotation (−1°.decade −1 ). These trends are explained by the main climate modes of the Atlantic Ocean (NAO/EA during winter, SAM during summer) and are important for future research and long-term monitoring of the Senegalese Coast. |
format |
Article in Journal/Newspaper |
author |
Marcellin Seujip Samou Xavier Bertin Issa Sakho Alban Lazar Mamadou Sadio Mouhamadou Bachir Diouf |
author_facet |
Marcellin Seujip Samou Xavier Bertin Issa Sakho Alban Lazar Mamadou Sadio Mouhamadou Bachir Diouf |
author_sort |
Marcellin Seujip Samou |
title |
Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades |
title_short |
Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades |
title_full |
Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades |
title_fullStr |
Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades |
title_full_unstemmed |
Wave Climate Variability along the Coastlines of Senegal over the Last Four Decades |
title_sort |
wave climate variability along the coastlines of senegal over the last four decades |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/atmos14071142 https://doaj.org/article/16f8d40191ed4587b6b5962da13935cc |
genre |
North Atlantic South Atlantic Ocean |
genre_facet |
North Atlantic South Atlantic Ocean |
op_source |
Atmosphere, Vol 14, Iss 1142, p 1142 (2023) |
op_relation |
https://www.mdpi.com/2073-4433/14/7/1142 https://doaj.org/toc/2073-4433 doi:10.3390/atmos14071142 2073-4433 https://doaj.org/article/16f8d40191ed4587b6b5962da13935cc |
op_doi |
https://doi.org/10.3390/atmos14071142 |
container_title |
Atmosphere |
container_volume |
14 |
container_issue |
7 |
container_start_page |
1142 |
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1774720701304930304 |