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Timing and magnitude of spring bloom and effects of physical environments over the Grand Banks of Newfoundland
[Zhao, Hui; Han, Guoqi] Fisheries & Oceans Canada, Northwest Atlantic Fisheries Ctr, St John, NF, Canada; [Zhao, Hui] Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China; [Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; chaohui@scsio.ac.cn
2013
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN2169-8953
Volume118Issue:4Pages:1385-1396
AbstractSpring bloom is a dominant feature of seasonal phytoplankton cycles in the northwest Atlantic continental shelf. In this study, we investigate temporal and spatial variations of spring-bloom timing and intensity over the Grand Banks of Newfoundland, using satellite ocean color data and other oceanographic measurements from January 1998 to December 2009. The spring bloom has strong interannual and meridional changes in its timing and intensities. Physical oceanographic conditions including the sea surface temperature (SST), wind speed, and mixed layer depth (MLD) also show evident interannual variations. The spring boom starts first in the southern Bank in February-March and often in the central and northern Bank in April, respectively. An early initiation of spring blooms is generally associated with high SST, weak winds, and shallow MLD at the beginning stage of the spring blooms, and tends to result in stronger intensities. However, the photosynthesis available radiance does not seem to affect the bloom initiation in the southern area or the bloom intensity over the entire Banks. In the southern area, higher SST does not lead to larger bloom magnitude. Our analysis shows that the effect of the SST in the northern area is primarily through the earlier ice melting. It also indicates that Sverdrup's critical depth criteria are suitable for conditions over the Grand Banks. The present study points to the significant sub-bank-scale differences in the timing and magnitude of the spring bloom attributable to underlying physical environments, important for the integrated management of the Grand Banks ecosystem.
DepartmentLTO
KeywordSpring Blooms Light Nutrients Grand Banks Of Newfoundland Sea Surface Temperature Labrador Current
Subject AreaEnvironmental Sciences ; Geosciences, Multidisciplinary
Funding OrganizationThis study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005]. ; This study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005]. ; This study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005]. ; This study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005].
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Language英语
Funding OrganizationThis study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005]. ; This study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005]. ; This study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005]. ; This study was supported by the Canadian Space Agency Government Related Initiatives Program (GRIP) and the Key Project of DEGP, China (No. 2012KJCX0065). The GlobColour project has been initiated and funded by the ESA Data User Element Programme to develop a satellite-based ocean colour data service to support global carbon cycle research. The GlobColour products have undergone an extensive validation based on a validation protocol derived from the SIMBIOS protocol. The GlobColour products have been derived with the GSM model and algorithm, developed by ICESS [Maritorena and Siegel, 2005].
WOS IDWOS:000329871400004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10863
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorchaohui@scsio.ac.cn
Recommended Citation
GB/T 7714
[Zhao, Hui,Han, Guoqi] Fisheries & Oceans Canada, Northwest Atlantic Fisheries Ctr, St John, NF, Canada,[Zhao, Hui] Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China,et al. Timing and magnitude of spring bloom and effects of physical environments over the Grand Banks of Newfoundland[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2013,118(4):1385-1396.
APA [Zhao, Hui,Han, Guoqi] Fisheries & Oceans Canada, Northwest Atlantic Fisheries Ctr, St John, NF, Canada,[Zhao, Hui] Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China,[Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China,&chaohui@scsio.ac.cn.(2013).Timing and magnitude of spring bloom and effects of physical environments over the Grand Banks of Newfoundland.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,118(4),1385-1396.
MLA [Zhao, Hui,et al."Timing and magnitude of spring bloom and effects of physical environments over the Grand Banks of Newfoundland".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 118.4(2013):1385-1396.
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