Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter
Using satellite-observed data and reanalysis data, we studied the spatiotemporal variation characteristics and dynamic mechanisms of thermal fronts in the Beibu Gulf (TFIBG). TFIBG occur in December, reach their strongest point in January in the following year, and then gradually weaken until they c...
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MDPI AG
2025-01-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/17/3/469 |
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| author | Ruili Sun Xindi Song Shuangyan He Peiliang Li Yanzhen Gu Chaojie Zhou |
| author_facet | Ruili Sun Xindi Song Shuangyan He Peiliang Li Yanzhen Gu Chaojie Zhou |
| author_sort | Ruili Sun |
| collection | DOAJ |
| description | Using satellite-observed data and reanalysis data, we studied the spatiotemporal variation characteristics and dynamic mechanisms of thermal fronts in the Beibu Gulf (TFIBG). TFIBG occur in December, reach their strongest point in January in the following year, and then gradually weaken until they completely disappear in May. Their formation is related to the bathymetry of the Beibu Gulf. In winter, the seawater in shallow-water areas (deep-water areas) cools down more (less), and Ekman currents concurrently transport warm water from the central basin of the Beibu Gulf to the west coast, which results in the formation of a thermal front at the junction of cold and warm water. The interannual variation in TFIBG intensity is related to the northeast monsoon. The strengthened (weakened) Ekman current caused by the northeast monsoon transports more (less) warm water from the central basin of the Beibu Gulf to the west coast, forming a strong (weak) thermal front at the junction of cold and warm water on an interannual scale. The upward trend of TFIBG intensity may be related to the regional heterogeneity of climate warming. This research systematically studied TFIBG, which will help improve people’s understanding of the thermal front in the South China Sea (SCS). |
| format | Article |
| id | doaj-art-745d1f8cc36d47d6b0bbb433fdd57fd3 |
| institution | DOAJ |
| issn | 2072-4292 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Remote Sensing |
| spelling | doaj-art-745d1f8cc36d47d6b0bbb433fdd57fd32025-08-20T02:48:10ZengMDPI AGRemote Sensing2072-42922025-01-0117346910.3390/rs17030469Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in WinterRuili Sun0Xindi Song1Shuangyan He2Peiliang Li3Yanzhen Gu4Chaojie Zhou5Hainan Institute, Zhejiang University, Sanya 572024, ChinaHainan Institute, Zhejiang University, Sanya 572024, ChinaHainan Institute, Zhejiang University, Sanya 572024, ChinaHainan Institute, Zhejiang University, Sanya 572024, ChinaHainan Institute, Zhejiang University, Sanya 572024, ChinaHainan Institute, Zhejiang University, Sanya 572024, ChinaUsing satellite-observed data and reanalysis data, we studied the spatiotemporal variation characteristics and dynamic mechanisms of thermal fronts in the Beibu Gulf (TFIBG). TFIBG occur in December, reach their strongest point in January in the following year, and then gradually weaken until they completely disappear in May. Their formation is related to the bathymetry of the Beibu Gulf. In winter, the seawater in shallow-water areas (deep-water areas) cools down more (less), and Ekman currents concurrently transport warm water from the central basin of the Beibu Gulf to the west coast, which results in the formation of a thermal front at the junction of cold and warm water. The interannual variation in TFIBG intensity is related to the northeast monsoon. The strengthened (weakened) Ekman current caused by the northeast monsoon transports more (less) warm water from the central basin of the Beibu Gulf to the west coast, forming a strong (weak) thermal front at the junction of cold and warm water on an interannual scale. The upward trend of TFIBG intensity may be related to the regional heterogeneity of climate warming. This research systematically studied TFIBG, which will help improve people’s understanding of the thermal front in the South China Sea (SCS).https://www.mdpi.com/2072-4292/17/3/469Beibu Gulfbathymetrynortheast monsoonclimate warming |
| spellingShingle | Ruili Sun Xindi Song Shuangyan He Peiliang Li Yanzhen Gu Chaojie Zhou Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter Remote Sensing Beibu Gulf bathymetry northeast monsoon climate warming |
| title | Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter |
| title_full | Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter |
| title_fullStr | Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter |
| title_full_unstemmed | Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter |
| title_short | Temporal and Spatial Variations in the Thermal Front in the Beibu Gulf in Winter |
| title_sort | temporal and spatial variations in the thermal front in the beibu gulf in winter |
| topic | Beibu Gulf bathymetry northeast monsoon climate warming |
| url | https://www.mdpi.com/2072-4292/17/3/469 |
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