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| 1 | Spatiotemporal variability of physical-biogeochemical processes and intrinsic correlations in the semi-enclosed South Yellow Sea显示文摘Investigating the spatiotemporal variability of biogeochemical processes and ecological responses under multiple physical controls in shelf seas is of great importance for obtaining an in-depth understanding of marine ecosystem.Based on a compiled data set of historical observations and remote sensing data,the spatiotemporal variability and heterogeneity of physical-biogeochemical processes in the semi-enclosed South Yellow Sea(SYS)are investigated,and the intrinsic connectivity among different subregions and the associated mechanisms are examined.The results show that the seasonal alternation between southward transport in cold seasons and upwelling-induced vertical delivery in warm seasons is the primary physical control of the biogeochemical processes and primary production off Shidao and in the area adjacent to the Haizhou Bay.The northeastward expansion of coastal waters in the Subei Shoal constitutes an important physical driver for the offshore transport of Ulva prolifera in summer.Stratification significantly affects the biogeochemical processes in the Yellow Sea Cold Water Mass(YSCWM)-dominated area during warm seasons,and nutrients can accumulate in bottom waters from spring to autumn,making the Yellow Sea Cold Water Mass(YSCWM)be an important nutrient pool.Upwelling around the YSCWM boundary in the stratified season leads to consistency among the high chlorophyll a(Chl a)area,high primary productivity region and low-temperature upwelling zone.During cold seasons,the interactions of the southward cold waters in the western nearshore area and the northward warm waters in the central region lead to an“S”-shaped front in the SYS.In summer,upwelling can extract nutrients from the YSCWM;thus,the biogeochemical-ecological processes inside the cold-water mass and in the frontal zone are well connected via upwelling,and three typical physical-biogeochemical coupling regions are generated,namely,the Shidao coast,the area beyond the Haizhou Bay and the area off the Subei Shoal.This work refines and integrates studies on regional oceanography in the SYS and provides a comprehensive and systematic framework of physical-biogeochemical-ecological processes. | Qinsheng Wei Baodong Wang Mingzhu Fu Junchuan Sun Qingzhen Yao Ming Xin Zhigang Yu | 2020 | Acta Oceanologica Sinica2020，39，10： | 3 |
| 2 | Ocean temperature responses to Typhoon Mstsa in the East China Sea显示文摘The MASNUM wave-tide-circulation coupled model,with 21 layers in the vertical and(1/8)°horizontal resolution,was employed to investigate the oceanic responses to Typhoon Mstsa which traversed the East China Sea(ECS)during the period of 4~6 August,2005.Numerical experiment results are analyzed and compared with observation.The responses of the sea surface temperature(SST),in a focused area of(27°~29°N,121°~124°E),include heating and cooling stages.The heating is mainly due to warm Kuroshio water transportation and downwelling due to the water accumulation.In the cooling stage,the amplitude of the simulated cold wake(~3℃),located on the right side of this typhoon track,is compared quite well with that of the satellite observed SST data.The wave-induced mixing(Bv)plays a key role for the SST cooling.Bv still plays a leading role,which accounts for 36%,for the ocean temperature drop in the upper ocean of 0~40 m,while the upwelling is responsible for 84% of the cooling for the lower layer of 40~70 m.The mixed layer depth(MLD)increased quickly from 28 to 50 m in the typhoon period.However,the simulated MLD without the wave-induced vertical mixing,evolution from 13 to 32 m,was seriously underestimated.The surface wave is too important to be ignored for the ocean responses to a typhoon. | WANG Guansuo QIAO Fangli | 2008 | Acta Oceanologica Sinica2008，27，4： | 3 |
| 3 | 风浪及地形对渤、黄海夏季温度垂直结构的影响显示文摘通过对所收集到历史海温实测资料的分析,概括了夏季渤、黄海温度结构的特点。在此基础上结合最新的卫星风场、有效波高场和地形资料,分析了风浪及地形对温度结构的影响。结果表明,在开阔的海域,夏季渤、黄海区较大的有效波高都出现在风区较长的地方,而有效波高的大小直接影响着上层海水的混合。渤海中部的双冷核结构和黄海中部温度的台状结构是波浪在海洋表层造成的混合与地形导致的潮汐混合共同作用的结果。夏季在没有明显上升流和平流的地方,浅水处表层温度与水深的关系满足热惯性机制,有温跃层产生的深水处水深仍然能影响到上混合层的深度。 | 徐玲玲 林霄沛 吴德星 | 2008 | 中国海洋大学学报(自然科学版)2008，38，2： | 2 |
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