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中国北部近海超级赤潮与西北太平洋海气相互作用的关联分析
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作者 张超 胡俊 +2 位作者 沈辉 郭振海 段安民 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2023年第3期406-412,共7页
已有研究揭示气溶胶传输和季风过程对中国近海赤潮的影响.本研究利用统计分析和动力学诊断方法,从海气相互作用的角度探究2000—2021年西北太平洋海温异常对中国北部近海超级赤潮的可能影响.结果表明:晚冬1—2月西北太平洋偶极型海温异... 已有研究揭示气溶胶传输和季风过程对中国近海赤潮的影响.本研究利用统计分析和动力学诊断方法,从海气相互作用的角度探究2000—2021年西北太平洋海温异常对中国北部近海超级赤潮的可能影响.结果表明:晚冬1—2月西北太平洋偶极型海温异常与随后5—6月中国北部近海的超级赤潮显著相关;西北太平洋南部冷-北部暖的偶极子海温异常可持续到随后的5—6月,并引发对流层低层向热带外传播的遥相关波列,使得鄂霍次克海气旋系统形成;该气旋西侧的西北风异常向中国北部近海输送干冷空气,伴随着对流层高层的异常辐合引发干沉降过程,从而为中国北部近海超级赤潮的暴发提供了有利的气象条件.上述结果可为中国北部近海超级赤潮的暴发和预测提供科学参考. 展开更多
关键词 中国北部近海 超级赤潮 海温异常 干沉降
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中国北部近海沉积盆地形成时期的古地形与盆地的含油气性 被引量:9
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作者 朱伟林 成鑫荣 《中国海上油气(地质)》 CAS 2000年第1期9-14,共6页
通过物质平衡法恢复中国北部近海沉积盆地周边集水区古地形,揭示盆地演化过程中富生烃凹陷周边地形演化特征,并分析古地形特征及构造运动,物源区岩性,盆地充填速率与凹陷含油气性的关系,为明确下一步油气勘探方向提供了依据。
关键词 中国北部近海 沉积盆地 形成时期 古地形 含油气性 岩性 富生烃凹陷 油气勘探
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Spatio-temporal variations in the siphonophore community of the northern South China Sea 被引量:2
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作者 李开枝 尹健强 +2 位作者 黄良民 练树民 张建林 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2013年第2期312-326,共15页
To understand how hydrological and biological factors affect near-to off-shore variations in the siphonophore community,we sampled zooplankton at 82 stations in the northern South China Sea during summer,winter,and sp... To understand how hydrological and biological factors affect near-to off-shore variations in the siphonophore community,we sampled zooplankton at 82 stations in the northern South China Sea during summer,winter,and spring.Forty-one species of siphonophore were collected by vertical trawling.The species richness of siphonophores increased from the nearshore to offshore regions in all three seasons of investigation,with maximum richness in summer and minimum richness in winter.The abundance of siphonophores was also higher in summer than in spring and winter,concentrated in the nearshore region in the warm season and scattered in the offshore region in the cold season.Four siphonophore groups were classified according to the frequency of occurrence:nearshore,near-offshore,offshore,and tropical pelagic.Among them,the nearshore group had higher abundance nearshore compared with the offshore.The tropical pelagic group had higher species number offshore than nearshore.Spatial and temporal fluctuations in taxonomic composition and abundance of siphonophores were due to the influence of the coastal upwelling and surface ocean currents of the South China Sea,driven by the East Asia monsoonal system. 展开更多
关键词 siphonophore species composition ABUNDANCE ocean current MONSOON South China Sea
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Impact of climatic change on sea surface temperature variation in Subei coastal waters,East China 被引量:2
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作者 王然 于非 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2014年第6期1406-1413,共8页
Sea surface temperature (SST) variation in the Subei coastal waters, East China, which is important for the ecological environment of the Yellow Sea where Enteromorphaprolifera blooms frequently, is affected by the ... Sea surface temperature (SST) variation in the Subei coastal waters, East China, which is important for the ecological environment of the Yellow Sea where Enteromorphaprolifera blooms frequently, is affected by the East Asian winter monsoon (EAWM), El Nifio-Southem Oscillation (ENSO), and Pacific Decadal Oscillation (PDO). In this study, correlations between climatic events and SST anomalies (SSTA) around the Subei (North Jiangsu Province, East China) Coast from 1981-2012 are analyzed, using empirical orthogonal function (EOF) and correlation analyses. First, a key region was determined by EOF analysis to represent the Subei coastal waters. Then, coherency analyses were performed on this key region. According to the correlation analysis, the EAWM index has a positive correlation with the spring and summer SSTA of the key region. Furthermore, the Nifio3.4 index is negatively correlated with the spring and summer SSTA of the key region 1 year ahead, and the PDO has significant negative coherency with spring SSTA and negative coherency with summer SSTA in the key region 1 year ahead. Overall, PDO exhibits the most significant impact on SSTA of the key region. In the key region, all these factors are correlated more significantly with SSTA in spring than in summer. This suggests that outbreaks ofEnteromorpha prolifera in the Yellow Sea are affected by global climatic changes, especially the PDO. 展开更多
关键词 sea surface temperature (SST) Pacific Decadal Oscillation (PDO) El Nifio-Southem Oscillation(ENSO) East Asian winter monsoon (EAWM) Subei coastal waters
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