Articles | Volume 19, issue 2
https://doi.org/10.5194/os-19-469-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-19-469-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Apr 2023
Research article |
| 17 Apr 2023
| 17 Apr 2023
Multiple mechanisms for chlorophyll a concentration variations in coastal upwelling regions: a case study east of Hainan Island in the South China Sea
Junyi Li
College of Ocean and Meteorology, Laboratory of Coastal Ocean Variation and Disaster Prediction,
Guangdong Ocean University, Zhanjiang, China
College of Ocean and Meteorology, Key Laboratory of Climate,
Sources and Environments in Continent Shelf Sea and Deep Ocean, Zhanjiang,
China
Key Laboratory of Space Ocean Remote Sensing and Application,
MNR, Beijing, China
Min Li
CORRESPONDING AUTHOR
College of Ocean and Meteorology, Laboratory of Coastal Ocean Variation and Disaster Prediction,
Guangdong Ocean University, Zhanjiang, China
Chao Wang
College of Ocean and Meteorology, Laboratory of Coastal Ocean Variation and Disaster Prediction,
Guangdong Ocean University, Zhanjiang, China
Quanan Zheng
College of Ocean and Meteorology, Laboratory of Coastal Ocean Variation and Disaster Prediction,
Guangdong Ocean University, Zhanjiang, China
Department of Atmospheric and Oceanic Science, University of Maryland,
College Park, MD, USA
Ying Xu
Key Laboratory of Space Ocean Remote Sensing and Application,
MNR, Beijing, China
Tianyu Zhang
College of Ocean and Meteorology, Laboratory of Coastal Ocean Variation and Disaster Prediction,
Guangdong Ocean University, Zhanjiang, China
Lingling Xie
CORRESPONDING AUTHOR
College of Ocean and Meteorology, Laboratory of Coastal Ocean Variation and Disaster Prediction,
Guangdong Ocean University, Zhanjiang, China
Viewed
Total article views: 3,602 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 30 Sep 2022)
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 2,512 | 942 | 148 | 3,602 | 173 | 246 |
- HTML: 2,512
- PDF: 942
- XML: 148
- Total: 3,602
- BibTeX: 173
- EndNote: 246
Total article views: 2,305 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 17 Apr 2023)
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 1,781 | 447 | 77 | 2,305 | 109 | 121 |
- HTML: 1,781
- PDF: 447
- XML: 77
- Total: 2,305
- BibTeX: 109
- EndNote: 121
Total article views: 1,297 (including HTML, PDF, and XML)
Cumulative views and downloads
(calculated since 30 Sep 2022)
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 731 | 495 | 71 | 1,297 | 64 | 125 |
- HTML: 731
- PDF: 495
- XML: 71
- Total: 1,297
- BibTeX: 64
- EndNote: 125
Viewed (geographical distribution)
Total article views: 3,602 (including HTML, PDF, and XML)
Thereof 3,535 with geography defined
and 67 with unknown origin.
Total article views: 2,305 (including HTML, PDF, and XML)
Thereof 2,246 with geography defined
and 59 with unknown origin.
Total article views: 1,297 (including HTML, PDF, and XML)
Thereof 1,289 with geography defined
and 8 with unknown origin.
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Country | # | Views | % |
|---|
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
1
Cited
15 citations as recorded by crossref.
- Shifting Dynamics for Coastal Upwelling and Surface Cold Water Patch: A Synergy of HF-Radar, In-Site Observation, Satellite, and Numerical Model Y. Wang et al. https://doi.org/10.1109/TGRS.2025.3559935
- The China Coastal Front from Himawari-8 AHI SST Data—Part 2: South China Sea I. Belkin et al. https://doi.org/10.3390/rs16183415
- Satellite tracked Lagrangian drifters observed Yuexi cyclonic eddy J. Li et al. https://doi.org/10.1007/s13131-024-2409-5
- A novel method to estimate the 3D chlorophyll a distribution in the South China Sea surface waters using hydrometeorological parameters Y. Zheng et al. https://doi.org/10.1038/s41598-024-76748-5
- Regulation of air-sea CO2 flux and aragonite saturation state in coral reef ecosystems along the eastern coast of Hainan Island, China W. Yang et al. https://doi.org/10.1016/j.marpolbul.2025.118862
- East Hainan Coastal Front: seasonal cycle, interannual variability, and long-term trend T. Liu et al. https://doi.org/10.1007/s10236-026-01815-6
- Regional chlorophyll- a retrieval algorithm for Indian coastal waters using optical classification and band optimization A. Samanta et al. https://doi.org/10.1080/01431161.2026.2625514
- Assessing the water quality dynamics in the coastal waters of Kollam (Kerala, India) using Sentinel images A. Prasad et al. https://doi.org/10.1007/s44218-024-00042-0
- Deep embedded clustering of chlorophyll-a reveals distinct seasonal regimes in the Beibu Gulf, China Q. Xu et al. https://doi.org/10.1016/j.srs.2026.100409
- Macroalgal influence on phytoplankton sinking and decomposition: Unraveling the carbon flux dynamics in the Sargassum zone X. Tian et al. https://doi.org/10.1007/s00227-024-04574-4
- Upwelling intensity structures free-living and particle-associated bacterial communities in an eastern boundary upwelling system O. Arzola et al. https://doi.org/10.3389/fmars.2026.1791547
- Statistical analysis of dynamic behavior of continental shelf wave motions in the northern South China Sea J. Li et al. https://doi.org/10.5194/os-19-1545-2023
- South China Sea SST Fronts, 2015–2022 I. Belkin & Y. Zang https://doi.org/10.3390/rs17050817
- Seasonal variations of coastal trapped waves (CTWs)’ propagation in the south China sea S. Hu et al. https://doi.org/10.1016/j.ecss.2024.108780
- Satellite observations and hydrodynamic simulations of harmful algal blooms in Guangdong coastal waters X. Zeng et al. https://doi.org/10.1007/s13131-025-2545-6
15 citations as recorded by crossref.
- Shifting Dynamics for Coastal Upwelling and Surface Cold Water Patch: A Synergy of HF-Radar, In-Site Observation, Satellite, and Numerical Model Y. Wang et al. https://doi.org/10.1109/TGRS.2025.3559935
- The China Coastal Front from Himawari-8 AHI SST Data—Part 2: South China Sea I. Belkin et al. https://doi.org/10.3390/rs16183415
- Satellite tracked Lagrangian drifters observed Yuexi cyclonic eddy J. Li et al. https://doi.org/10.1007/s13131-024-2409-5
- A novel method to estimate the 3D chlorophyll a distribution in the South China Sea surface waters using hydrometeorological parameters Y. Zheng et al. https://doi.org/10.1038/s41598-024-76748-5
- Regulation of air-sea CO2 flux and aragonite saturation state in coral reef ecosystems along the eastern coast of Hainan Island, China W. Yang et al. https://doi.org/10.1016/j.marpolbul.2025.118862
- East Hainan Coastal Front: seasonal cycle, interannual variability, and long-term trend T. Liu et al. https://doi.org/10.1007/s10236-026-01815-6
- Regional chlorophyll- a retrieval algorithm for Indian coastal waters using optical classification and band optimization A. Samanta et al. https://doi.org/10.1080/01431161.2026.2625514
- Assessing the water quality dynamics in the coastal waters of Kollam (Kerala, India) using Sentinel images A. Prasad et al. https://doi.org/10.1007/s44218-024-00042-0
- Deep embedded clustering of chlorophyll-a reveals distinct seasonal regimes in the Beibu Gulf, China Q. Xu et al. https://doi.org/10.1016/j.srs.2026.100409
- Macroalgal influence on phytoplankton sinking and decomposition: Unraveling the carbon flux dynamics in the Sargassum zone X. Tian et al. https://doi.org/10.1007/s00227-024-04574-4
- Upwelling intensity structures free-living and particle-associated bacterial communities in an eastern boundary upwelling system O. Arzola et al. https://doi.org/10.3389/fmars.2026.1791547
- Statistical analysis of dynamic behavior of continental shelf wave motions in the northern South China Sea J. Li et al. https://doi.org/10.5194/os-19-1545-2023
- South China Sea SST Fronts, 2015–2022 I. Belkin & Y. Zang https://doi.org/10.3390/rs17050817
- Seasonal variations of coastal trapped waves (CTWs)’ propagation in the south China sea S. Hu et al. https://doi.org/10.1016/j.ecss.2024.108780
- Satellite observations and hydrodynamic simulations of harmful algal blooms in Guangdong coastal waters X. Zeng et al. https://doi.org/10.1007/s13131-025-2545-6
Saved (final revised paper)
Latest update: 28 May 2026
Short summary
This study reports the existence of a relatively-low-productivity area of upwelling east of Hainan Island (UEH), which is inconsistent with previous cognition. The reason for this phenomenon is the crucial role of the Guangdong Coastal Current and precipitation. The current and precipitation would induce a high productivity, which is interrupted by the upwelling processes. Therefore, the upwelling has a relatively limited effect on the Chl a concentration in the UEH area.
This study reports the existence of a relatively-low-productivity area of upwelling east of...
