Sea Level Change in the Canary Current System during the Satellite Era

Understanding the causes of global sea level rise is considered as an important goal of climate research on a regional scale, especially around islands, owing to their vulnerability to this phenomenon. In the case of the Canary Islands, these alterations entail an increase in territorial risks. The...

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Main Authors: Nerea Marrero-Betancort, Javier Marcello, Dionisio Rodríguez-Esparragón, Santiago Hernández-León
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/10/7/936
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author Nerea Marrero-Betancort
Javier Marcello
Dionisio Rodríguez-Esparragón
Santiago Hernández-León
author_facet Nerea Marrero-Betancort
Javier Marcello
Dionisio Rodríguez-Esparragón
Santiago Hernández-León
author_sort Nerea Marrero-Betancort
collection DOAJ
description Understanding the causes of global sea level rise is considered as an important goal of climate research on a regional scale, especially around islands, owing to their vulnerability to this phenomenon. In the case of the Canary Islands, these alterations entail an increase in territorial risks. The Canary Islands span the transitional zone linking the Northwest African upwelling system and the open ocean waters of the subtropical gyre. Here, we used satellite altimeter data to perform a detailed statistical analysis of sea level anomaly from 1993 to 2019. A seasonal study was carried out at two different regions and sea level anomaly was compared with temperature variability in the area. A total rise in the sea level of around 7.94 cm was obtained for the last 27 years in both areas. Sea level anomaly was strongly influenced by sea surface temperature, as expected. In addition, we found differences between the annual cycle in the open ocean and the upwelling zone, showing different patterns in both sites. The expected increase in sea level for the year 2050 in the coastal zone of the archipelago was estimated to be 18.10 cm, affecting the coastal economy of the islands, which is strongly based on the use of beaches for tourism.
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spelling doaj.art-5f9ce0bba6d641b5a62ee48a4d714d3c2023-12-03T15:14:56ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-07-0110793610.3390/jmse10070936Sea Level Change in the Canary Current System during the Satellite EraNerea Marrero-Betancort0Javier Marcello1Dionisio Rodríguez-Esparragón2Santiago Hernández-León3Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, 35017 Las Palmas de Gran Canaria, SpainInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, 35017 Las Palmas de Gran Canaria, SpainInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, 35017 Las Palmas de Gran Canaria, SpainInstituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, 35017 Las Palmas de Gran Canaria, SpainUnderstanding the causes of global sea level rise is considered as an important goal of climate research on a regional scale, especially around islands, owing to their vulnerability to this phenomenon. In the case of the Canary Islands, these alterations entail an increase in territorial risks. The Canary Islands span the transitional zone linking the Northwest African upwelling system and the open ocean waters of the subtropical gyre. Here, we used satellite altimeter data to perform a detailed statistical analysis of sea level anomaly from 1993 to 2019. A seasonal study was carried out at two different regions and sea level anomaly was compared with temperature variability in the area. A total rise in the sea level of around 7.94 cm was obtained for the last 27 years in both areas. Sea level anomaly was strongly influenced by sea surface temperature, as expected. In addition, we found differences between the annual cycle in the open ocean and the upwelling zone, showing different patterns in both sites. The expected increase in sea level for the year 2050 in the coastal zone of the archipelago was estimated to be 18.10 cm, affecting the coastal economy of the islands, which is strongly based on the use of beaches for tourism.https://www.mdpi.com/2077-1312/10/7/936mean sea level anomalyupwellingclimate changeremote sensing
spellingShingle Nerea Marrero-Betancort
Javier Marcello
Dionisio Rodríguez-Esparragón
Santiago Hernández-León
Sea Level Change in the Canary Current System during the Satellite Era
Journal of Marine Science and Engineering
mean sea level anomaly
upwelling
climate change
remote sensing
title Sea Level Change in the Canary Current System during the Satellite Era
title_full Sea Level Change in the Canary Current System during the Satellite Era
title_fullStr Sea Level Change in the Canary Current System during the Satellite Era
title_full_unstemmed Sea Level Change in the Canary Current System during the Satellite Era
title_short Sea Level Change in the Canary Current System during the Satellite Era
title_sort sea level change in the canary current system during the satellite era
topic mean sea level anomaly
upwelling
climate change
remote sensing
url https://www.mdpi.com/2077-1312/10/7/936
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AT javiermarcello sealevelchangeinthecanarycurrentsystemduringthesatelliteera
AT dionisiorodriguezesparragon sealevelchangeinthecanarycurrentsystemduringthesatelliteera
AT santiagohernandezleon sealevelchangeinthecanarycurrentsystemduringthesatelliteera