caa a22 4500 445799544 CHVBK 20180317145136.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00704-010-0295-6 doi (NATIONALLICENCE)springer-10.1007/s00704-010-0295-6 Climate-driven chlorophyll- a concentration interannual variability in the South China Sea [Elektronische Daten] [Shilin Tang, Qing Dong, Fenfen Liu] Physical forcing and biological response are highly variable over a wide range of scales in the South China Sea. The present paper analyzed interannual variability of the surface chlorophyll-a concentration of the South China Sea using NASA standard SeaWiFS monthly products from 1997 to 2007. Time series of monthly data were first smoothed using a 12-month running mean filter. An empirical orthogonal function (EOF) analysis was performed to evaluate the interannual variability. The first EOF mode is characterized by a higher surface chlorophyll-a concentration in the deep basin of the South China Sea with a maximum value southwest of Luzon Strait. The corresponding time coefficient function is highly correlated with the multivariate ENSO index (MEI). The correlation coefficient is −0.61 when the time coefficient function lags the MEI by 9months. The second EOF mode is characterized by a northwest lower chlorophyll-a concentration. The corresponding time coefficient function correlates with the MEI at a correlation coefficient equal to 0.88, with a lag of 1month. The third EOF mode shows the interannual variability of the chlorophyll-a concentration has some relationship with Indian Ocean dipole mode as well. The link between the climate and ocean biological states in the South China Sea is due to changes in upper-ocean temperature and wind field, which influence the availability of nutrients for phytoplankton growth. Springer-Verlag, 2010 Tang Shilin Key Laboratory of Digital Earth, Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, 100101, Beijing, China aut Dong Qing Key Laboratory of Digital Earth, Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, 100101, Beijing, China aut Liu Fenfen LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut Theoretical and Applied Climatology Springer Vienna 103/1-2(2011-01-01), 229-237 0177-798X 103:1-2<229 2011 103 704 https://doi.org/10.1007/s00704-010-0295-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00704-010-0295-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tang Shilin Key Laboratory of Digital Earth, Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, 100101, Beijing, China aut NATIONALLICENCE 700 1- Dong Qing Key Laboratory of Digital Earth, Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, 100101, Beijing, China aut NATIONALLICENCE 700 1- Liu Fenfen LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 510301, Guangzhou, China aut NATIONALLICENCE 773 0- Theoretical and Applied Climatology Springer Vienna 103/1-2(2011-01-01), 229-237 0177-798X 103:1-2<229 2011 103 704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer