Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE
The catastrophic implication of harmful algal bloom (HAB) events in the Arabian Gulf is a strong indication that the study of the spatiotemporal distribution of chlorophyll-a and its relationship with other variables is critical. This study analyzes the relationship between chlorophyll-a (Chl-a) and...
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MDPI AG
2021-06-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/13/2447 |
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| author | Khalid A. Hussein Khameis Al Abdouli Dawit T. Ghebreyesus Pakorn Petchprayoon Naeema Al Hosani Hatim O. Sharif |
| author_facet | Khalid A. Hussein Khameis Al Abdouli Dawit T. Ghebreyesus Pakorn Petchprayoon Naeema Al Hosani Hatim O. Sharif |
| author_sort | Khalid A. Hussein |
| collection | DOAJ |
| description | The catastrophic implication of harmful algal bloom (HAB) events in the Arabian Gulf is a strong indication that the study of the spatiotemporal distribution of chlorophyll-a and its relationship with other variables is critical. This study analyzes the relationship between chlorophyll-a (Chl-a) and sea surface temperature (SST) and their trends in the Arabian Gulf and the Gulf of Oman along the United Arab Emirates coast. Additionally, the relationship between bathymetry and Chl-a and SST was examined. The MODIS Aqua product with a resolution of 1 × 1 km<sup>2</sup> was employed for both chlorophyll-a and SST covering a timeframe from 2003 to 2019. The highest concentration of chlorophyll-a was seen in the Strait of Hormuz with an average of 2.8 mg m<sup>−3</sup>, which is 1.1 mg m<sup>−3</sup> higher than the average for the entire study area. Three-quarters of the study area showed a significant correlation between the Chl-a and SST. The shallow (deep) areas showed a strong positive (negative) correlation between the Chl-a and SST. The results indicate the presence of trends for both variables across most of the study area. SST significantly increased in more than two-thirds of the study area in the summer with no significant trends detected in the winter. |
| first_indexed | 2024-03-10T10:08:53Z |
| format | Article |
| id | doaj.art-d265771e4cf646c5a38d65d3a1468f15 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T10:08:53Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-d265771e4cf646c5a38d65d3a1468f152023-11-22T01:19:42ZengMDPI AGRemote Sensing2072-42922021-06-011313244710.3390/rs13132447Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAEKhalid A. Hussein0Khameis Al Abdouli1Dawit T. Ghebreyesus2Pakorn Petchprayoon3Naeema Al Hosani4Hatim O. Sharif5Geography and Urban Sustainability Department, College of Humanities and Social Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesBusiness Continuity Management & Integrated Emergency Management, Rabdan Academy, Abu Dhabi P.O. Box 114646, United Arab EmiratesDepartment of Civil and Environmental Engineering, University of Texas at San Antonio, San Antonio, TX 78249, USAGeo-Informatics and Space Technology Development Agency (GISTDA), Bangkok 10210, ThailandGeography and Urban Sustainability Department, College of Humanities and Social Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab EmiratesDepartment of Civil and Environmental Engineering, University of Texas at San Antonio, San Antonio, TX 78249, USAThe catastrophic implication of harmful algal bloom (HAB) events in the Arabian Gulf is a strong indication that the study of the spatiotemporal distribution of chlorophyll-a and its relationship with other variables is critical. This study analyzes the relationship between chlorophyll-a (Chl-a) and sea surface temperature (SST) and their trends in the Arabian Gulf and the Gulf of Oman along the United Arab Emirates coast. Additionally, the relationship between bathymetry and Chl-a and SST was examined. The MODIS Aqua product with a resolution of 1 × 1 km<sup>2</sup> was employed for both chlorophyll-a and SST covering a timeframe from 2003 to 2019. The highest concentration of chlorophyll-a was seen in the Strait of Hormuz with an average of 2.8 mg m<sup>−3</sup>, which is 1.1 mg m<sup>−3</sup> higher than the average for the entire study area. Three-quarters of the study area showed a significant correlation between the Chl-a and SST. The shallow (deep) areas showed a strong positive (negative) correlation between the Chl-a and SST. The results indicate the presence of trends for both variables across most of the study area. SST significantly increased in more than two-thirds of the study area in the summer with no significant trends detected in the winter.https://www.mdpi.com/2072-4292/13/13/2447Arabian GulfGulf of OmanMODISalgal bloomschlorophyll-aSST |
| spellingShingle | Khalid A. Hussein Khameis Al Abdouli Dawit T. Ghebreyesus Pakorn Petchprayoon Naeema Al Hosani Hatim O. Sharif Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE Remote Sensing Arabian Gulf Gulf of Oman MODIS algal blooms chlorophyll-a SST |
| title | Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE |
| title_full | Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE |
| title_fullStr | Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE |
| title_full_unstemmed | Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE |
| title_short | Spatiotemporal Variability of Chlorophyll-a and Sea Surface Temperature, and Their Relationship with Bathymetry over the Coasts of UAE |
| title_sort | spatiotemporal variability of chlorophyll a and sea surface temperature and their relationship with bathymetry over the coasts of uae |
| topic | Arabian Gulf Gulf of Oman MODIS algal blooms chlorophyll-a SST |
| url | https://www.mdpi.com/2072-4292/13/13/2447 |
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