Decadal variability of chlorophyll a in the South China Sea: a possible mechanism
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Decadal variability of chlorophyll a in the South China Sea: a possible mechanism
Decadal variability of chlorophyll a in the South China Sea: a possible mechanism
海洋湖沼学报(英文)2012年30卷第6期 页码:1054-1062
Affiliations:
1. State Key Laboratory of Oceanography in the Tropics South China Sea Institute of Oceanology Chinese Academy of Sciences
2. Graduate University of Chinese Academy of Sciences
Author bio:
Funds:
Supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Nos. KZCX1-YW-12-01, KZCX2-YW-Q11-02), the National Natural Science Foundation of China (Nos. 41006111, 40976106), and the Project from Guangzhou City for the Pearl River New Star on Science and Technology (No. 2011J2200022)
Decadal variability of chlorophyll a in the South China Sea: a possible mechanism[J]. 海洋湖沼学报(英文), 2012,30(6):1054-1062.
Liu, F., Chen, C. & Zhan, H. Decadal variability of chlorophyll a in the South China Sea: a possible mechanism., Chin. J. Ocean. Limnol. 30, 1054–1062 (2012). https://doi.org/10.1007/s00343-012-1282-9
Decadal variability of chlorophyll a in the South China Sea: a possible mechanism[J]. 海洋湖沼学报(英文), 2012,30(6):1054-1062. DOI: 10.1007/s00343-012-1282-9.
Liu, F., Chen, C. & Zhan, H. Decadal variability of chlorophyll a in the South China Sea: a possible mechanism., Chin. J. Ocean. Limnol. 30, 1054–1062 (2012). https://doi.org/10.1007/s00343-012-1282-9DOI:
Decadal variability of chlorophyll a in the South China Sea: a possible mechanism
摘要
Abstract
Four climatologies on a monthly scale (January
April
May and November) of chlorophyll a within the South China Sea (SCS) were calculated using a Coastal Zone Color Scanner (CZCS) (1979-1983) and the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) (1998-2002). We analyzed decadal variability of chlorophyll a by comparing the products of the two observation periods. The relationships of variability in chlorophyll a with sea surface wind speed (SSW)
sea surface temperature (SST)
wind stress (WS)
and mixed layer depth (MLD) were determined. The results indicate that there is obvious chlorophyll a decadal variability in the SCS. The decadal chlorophyll a presents distinct seasonal variability in characteristics
which may be as a result of various different dynamic processes. The negative chlorophyll a concentration anomaly in January was associated with the warming of SST and a shallower MLD. Generally
there were higher chlorophyll a concentrations in spring during the SeaWiFS period compared with the CZCS period. However
the chlorophyll a concentration exhibits some regional differences during this season
leading to an explanation being diffi cult. The deepened MLD may have contributed to the positive chlorophyll a concentration anomalies from the northwestern Luzon Island to the northeastern region of Vietnam during April and May. The increases of chlorophyll a concentration in northwestern Borneo during May may be because the stronger SSW and higher WS produce a deeper mixed layer and convective mixing
leading to high levels of nutrient concentrations. The higher chlorophyll a off southeastern Vietnam may be associated with the advective transport of the colder water extending from the Karimata Strait to southeastern Vietnam.
关键词
Keywords
references
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