The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008
Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found tha...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Su, Jian [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2011 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s) 2011 |
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| Übergeordnetes Werk: |
Enthalten in: Ocean dynamics - Springer-Verlag, 2001, 61(2011), 6 vom: 16. Apr., Seite 717-730 |
|---|---|
| Übergeordnetes Werk: |
volume:61 ; year:2011 ; number:6 ; day:16 ; month:04 ; pages:717-730 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10236-011-0404-9 |
|---|
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OLC2070859517 |
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| 520 | |a Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. | ||
| 650 | 4 | |a Hainan | |
| 650 | 4 | |a Upwelling dynamics | |
| 650 | 4 | |a Observational data | |
| 650 | 4 | |a Thermocline | |
| 700 | 1 | |a Wang, Jun |4 aut | |
| 700 | 1 | |a Pohlmann, Thomas |4 aut | |
| 700 | 1 | |a Xu, Dongfeng |4 aut | |
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10.1007/s10236-011-0404-9 doi (DE-627)OLC2070859517 (DE-He213)s10236-011-0404-9-p DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn 38.90$jOzeanologie$jOzeanographie bkl Su, Jian verfasserin aut The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2011 Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. Hainan Upwelling dynamics Observational data Thermocline Wang, Jun aut Pohlmann, Thomas aut Xu, Dongfeng aut Enthalten in Ocean dynamics Springer-Verlag, 2001 61(2011), 6 vom: 16. Apr., Seite 717-730 (DE-627)335936091 (DE-600)2060148-7 (DE-576)096704470 1616-7341 nnns volume:61 year:2011 number:6 day:16 month:04 pages:717-730 https://doi.org/10.1007/s10236-011-0404-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-GGO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_183 GBV_ILN_600 GBV_ILN_2018 GBV_ILN_4277 GBV_ILN_4305 38.90$jOzeanologie$jOzeanographie VZ 106421921 (DE-625)106421921 AR 61 2011 6 16 04 717-730 |
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10.1007/s10236-011-0404-9 doi (DE-627)OLC2070859517 (DE-He213)s10236-011-0404-9-p DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn 38.90$jOzeanologie$jOzeanographie bkl Su, Jian verfasserin aut The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2011 Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. Hainan Upwelling dynamics Observational data Thermocline Wang, Jun aut Pohlmann, Thomas aut Xu, Dongfeng aut Enthalten in Ocean dynamics Springer-Verlag, 2001 61(2011), 6 vom: 16. Apr., Seite 717-730 (DE-627)335936091 (DE-600)2060148-7 (DE-576)096704470 1616-7341 nnns volume:61 year:2011 number:6 day:16 month:04 pages:717-730 https://doi.org/10.1007/s10236-011-0404-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-GGO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_183 GBV_ILN_600 GBV_ILN_2018 GBV_ILN_4277 GBV_ILN_4305 38.90$jOzeanologie$jOzeanographie VZ 106421921 (DE-625)106421921 AR 61 2011 6 16 04 717-730 |
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10.1007/s10236-011-0404-9 doi (DE-627)OLC2070859517 (DE-He213)s10236-011-0404-9-p DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn 38.90$jOzeanologie$jOzeanographie bkl Su, Jian verfasserin aut The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2011 Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. Hainan Upwelling dynamics Observational data Thermocline Wang, Jun aut Pohlmann, Thomas aut Xu, Dongfeng aut Enthalten in Ocean dynamics Springer-Verlag, 2001 61(2011), 6 vom: 16. Apr., Seite 717-730 (DE-627)335936091 (DE-600)2060148-7 (DE-576)096704470 1616-7341 nnns volume:61 year:2011 number:6 day:16 month:04 pages:717-730 https://doi.org/10.1007/s10236-011-0404-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-GGO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_183 GBV_ILN_600 GBV_ILN_2018 GBV_ILN_4277 GBV_ILN_4305 38.90$jOzeanologie$jOzeanographie VZ 106421921 (DE-625)106421921 AR 61 2011 6 16 04 717-730 |
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10.1007/s10236-011-0404-9 doi (DE-627)OLC2070859517 (DE-He213)s10236-011-0404-9-p DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn 38.90$jOzeanologie$jOzeanographie bkl Su, Jian verfasserin aut The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2011 Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. Hainan Upwelling dynamics Observational data Thermocline Wang, Jun aut Pohlmann, Thomas aut Xu, Dongfeng aut Enthalten in Ocean dynamics Springer-Verlag, 2001 61(2011), 6 vom: 16. Apr., Seite 717-730 (DE-627)335936091 (DE-600)2060148-7 (DE-576)096704470 1616-7341 nnns volume:61 year:2011 number:6 day:16 month:04 pages:717-730 https://doi.org/10.1007/s10236-011-0404-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-GGO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_183 GBV_ILN_600 GBV_ILN_2018 GBV_ILN_4277 GBV_ILN_4305 38.90$jOzeanologie$jOzeanographie VZ 106421921 (DE-625)106421921 AR 61 2011 6 16 04 717-730 |
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10.1007/s10236-011-0404-9 doi (DE-627)OLC2070859517 (DE-He213)s10236-011-0404-9-p DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn 38.90$jOzeanologie$jOzeanographie bkl Su, Jian verfasserin aut The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2011 Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. Hainan Upwelling dynamics Observational data Thermocline Wang, Jun aut Pohlmann, Thomas aut Xu, Dongfeng aut Enthalten in Ocean dynamics Springer-Verlag, 2001 61(2011), 6 vom: 16. Apr., Seite 717-730 (DE-627)335936091 (DE-600)2060148-7 (DE-576)096704470 1616-7341 nnns volume:61 year:2011 number:6 day:16 month:04 pages:717-730 https://doi.org/10.1007/s10236-011-0404-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-GGO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_22 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_183 GBV_ILN_600 GBV_ILN_2018 GBV_ILN_4277 GBV_ILN_4305 38.90$jOzeanologie$jOzeanographie VZ 106421921 (DE-625)106421921 AR 61 2011 6 16 04 717-730 |
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the influence of meteorological variation on the upwelling system off eastern hainan during summer 2007–2008 |
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The influence of meteorological variation on the upwelling system off eastern Hainan during summer 2007–2008 |
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Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. © The Author(s) 2011 |
| abstractGer |
Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. © The Author(s) 2011 |
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Abstract The influence of meteorological variation, i.e., typhoon and precipitation events, on the coastal upwelling off the eastern Hainan Island was studied based on observations taken during two upwelling seasons. The observations were made in August 2007 and July 2008, respectively. We found that, in principle, similar structure of sea surface temperature and bottom temperature prevailed in both observational periods, providing evidence that upwelling events occur frequently during the summer monsoon along the eastern Hainan shelf. Based on a simple momentum balance theory, we studied the balances between momentum fluxes, wind stress, and bottom stress. The results showed that the Burger number is S ≈ 1, indicating that the cross-shelf momentum flux divergence was balanced by the wind stress and the onshore return flow occurred in the interior of the water column. Hence, a conceptual model of the upwelling structure was built for further understanding of upwelling events. In addition, it was also observed that variations in the strength of upwelling are controlled by storm events, i.e., strong northerly winds change the structure of the thermocline on the shelf significantly. The strong mixing caused by wind reduces the strength of the thermocline, in particular in coastal seas. Based on our conceptual model, a frontal zone between mixed coastal water and offshore water develops which destabilizing the water column and hence decreases the upwelling strength. Freshwaters from the two main rivers in the Wenchang Bay are confined to the coastal area less than 20–30 m deep, as confirmed by our water mass analysis. Freshwater discharge stabilized the water column, inhibiting the upwelling as shown by the potential energy calculation. Consequently, estuarine water only inhibits the upwelling in the near coastal area. Therefore, it can be concluded that estuarine water does not have a significant impact on upwelling strength on the shelf. © The Author(s) 2011 |
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