Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model
Sea surface temperature (SST) and surface wind (SW) are considered the most important components in air–sea interactions. This study examines the relationships between SST, SW and various oceanic variables in the northern Red Sea (NRS) during the period of 2000–2014. The current study is the first a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-07-01
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| Series: | Oceanologia |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0078323417300039 |
| _version_ | 1811193390127120384 |
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| author | Ahmed Eladawy Kazuo Nadaoka Abdelazim Negm Sommer Abdel-Fattah Mahmoud Hanafy Mohamed Shaltout |
| author_facet | Ahmed Eladawy Kazuo Nadaoka Abdelazim Negm Sommer Abdel-Fattah Mahmoud Hanafy Mohamed Shaltout |
| author_sort | Ahmed Eladawy |
| collection | DOAJ |
| description | Sea surface temperature (SST) and surface wind (SW) are considered the most important components in air–sea interactions. This study examines the relationships between SST, SW and various oceanic variables in the northern Red Sea (NRS) during the period of 2000–2014. The current study is the first attempt to identify the SST fronts and their relationship with the dominant circulation patterns. SST fronts are mapped using the Cayula and Cornillon algorithms. The analysis is performed with available remote sensing and reanalyzed data together with 1/12° HYbrid Coordinate Ocean Model (HYCOM) outputs. Seasonal-trend decomposition procedure based on loess (STL) is applied for trend analysis, and Principal Component Analysis (PCA) is run for the atmospheric parameters. The SST, SW speed and Chlorophyll-a (Chl-a) changes show insignificant trends during the period of 2000–2014. Meridional SST fronts are more significant during the month of January, and fronts that are perpendicular to the sea's axis occur from February to May. Distinct monthly and spatial variations are present in all the examined parameters, although these variations are less pronounced for the wind direction. The SST is mainly controlled by the air temperature and sea level pressure. Significant correlations exist between the SST and the studied parameters (alongshore wind stress rather than the cross-shore wind stress, surface circulation, MLD, and Chl-a). Surface winds generally flow southeastward parallel to the Red Sea's axis explaining that alongshore wind stress is highly correlated with the studied parameters. |
| first_indexed | 2024-04-12T00:07:34Z |
| format | Article |
| id | doaj.art-bdd2f6d013a248b59506eb6b531d6bb6 |
| institution | Directory Open Access Journal |
| issn | 0078-3234 |
| language | English |
| last_indexed | 2024-04-12T00:07:34Z |
| publishDate | 2017-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Oceanologia |
| spelling | doaj.art-bdd2f6d013a248b59506eb6b531d6bb62022-12-22T03:56:03ZengElsevierOceanologia0078-32342017-07-0159321323710.1016/j.oceano.2017.01.002Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation modelAhmed Eladawy0Kazuo Nadaoka1Abdelazim Negm2Sommer Abdel-Fattah3Mahmoud Hanafy4Mohamed Shaltout5Department of Environmental Engineering, Egypt-Japan University of Science and Technology, Alexandria, EgyptDepartment of Transdisciplinary Science and Engineering, School of Environment and Society, Tokyo Institute of Technology, JapanDepartment of Environmental Engineering, Egypt-Japan University of Science and Technology, Alexandria, EgyptDepartment of Environmental Engineering, Egypt-Japan University of Science and Technology, Alexandria, EgyptMarine Science Department, Suez Canal University, Faculty of Science, EgyptOceanography Department, Alexandria University, Faculty of Science, EgyptSea surface temperature (SST) and surface wind (SW) are considered the most important components in air–sea interactions. This study examines the relationships between SST, SW and various oceanic variables in the northern Red Sea (NRS) during the period of 2000–2014. The current study is the first attempt to identify the SST fronts and their relationship with the dominant circulation patterns. SST fronts are mapped using the Cayula and Cornillon algorithms. The analysis is performed with available remote sensing and reanalyzed data together with 1/12° HYbrid Coordinate Ocean Model (HYCOM) outputs. Seasonal-trend decomposition procedure based on loess (STL) is applied for trend analysis, and Principal Component Analysis (PCA) is run for the atmospheric parameters. The SST, SW speed and Chlorophyll-a (Chl-a) changes show insignificant trends during the period of 2000–2014. Meridional SST fronts are more significant during the month of January, and fronts that are perpendicular to the sea's axis occur from February to May. Distinct monthly and spatial variations are present in all the examined parameters, although these variations are less pronounced for the wind direction. The SST is mainly controlled by the air temperature and sea level pressure. Significant correlations exist between the SST and the studied parameters (alongshore wind stress rather than the cross-shore wind stress, surface circulation, MLD, and Chl-a). Surface winds generally flow southeastward parallel to the Red Sea's axis explaining that alongshore wind stress is highly correlated with the studied parameters.http://www.sciencedirect.com/science/article/pii/S0078323417300039Northern Red SeaRemote sensingSST frontsAtmospheric parametersChlorophyll-aHYCOM |
| spellingShingle | Ahmed Eladawy Kazuo Nadaoka Abdelazim Negm Sommer Abdel-Fattah Mahmoud Hanafy Mohamed Shaltout Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model Oceanologia Northern Red Sea Remote sensing SST fronts Atmospheric parameters Chlorophyll-a HYCOM |
| title | Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model |
| title_full | Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model |
| title_fullStr | Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model |
| title_full_unstemmed | Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model |
| title_short | Characterization of the northern Red Sea's oceanic features with remote sensing data and outputs from a global circulation model |
| title_sort | characterization of the northern red sea s oceanic features with remote sensing data and outputs from a global circulation model |
| topic | Northern Red Sea Remote sensing SST fronts Atmospheric parameters Chlorophyll-a HYCOM |
| url | http://www.sciencedirect.com/science/article/pii/S0078323417300039 |
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