山东半岛东部海域悬浮体分布季节变化及其冬季输送通量研究
- 1. 自然资源部第一海洋研究所, 山东青岛 266061;
- 2. 澳大利亚新南威尔士大学, 堪培拉 2601
基金项目:
国家自然科学基金项目（41406100）；山东省自然科学基金项目（ZR2013DQ001）；我国近海海洋综合调查与评价专项（908-01-ST02）
作者简介:
王勇智,男,1980年出生,博士,高级工程师,浅海动力沉积学,E-mail:wangyongzhi@fio.org.cn
- 收稿日期:
2018-05-16
- 修回日期:
2018-09-19
- 刊出日期:
2019-06-10
摘要: 山东半岛东部近岸海域流系和水团要素季节变化显著，沉积动力环境特殊，发育有剖面形状独特的泥质沉积体。基于两个年度的夏、冬季山东半岛东部近岸海域水体温度、浊度、悬浮体浓度和海流等调查资料，分析了水团要素分布季节变化特征，并结合研究区域冬季海流和余流分布特征，计算了冬季经山东半岛东部近岸海域向南输送的悬浮体净通量。结果表明：山东半岛东部近岸海域悬浮体分布受沿岸流、黄海冷水团和黄海暖流等流系季节变化的影响存在显著季节变化。夏季，水体垂向层结和黄海冷水团均可抑制悬浮体垂向和东西向扩散。与以往的研究有所不同的是，冬季大量悬浮体可穿越沿岸流与黄海暖流形成的海流切变锋面，进入黄海暖流向北输送，海流切变锋的屏障作用会随着黄海暖流的减弱或东移而削弱。每年冬季经山东半岛东部近岸海域输送的悬浮体占渤海海峡向外海输送的悬浮体年净通量的3.22%~9.10%，冬季的悬浮体输送量较大，占冬季渤海海峡向外海输送的悬浮体年净通量的6.84%~19.38%。
Seasonal Variation of Suspended Matter Distribution and Flux in Coastal Waters of Eastern Shandong Peninsula
- 1. The First Institute of Oceanography, MNR, Qingdao, Shandong 266061, China;
- 2. The University of New South Wales, Canberra ACT 2601, Australia
Funds:
National Natural Science Foundation of China,No.41406100; Natural Science Foundation of Shandong Province,No.ZR2013DQ001;Marine Comprehensive Survey and Evaluation in China,No.908-01-ST02
- Received Date:
2018-05-16
- Rev Recd Date:
2018-09-19
- Publish Date:
2019-06-10
Abstract: The seasonal variation of coastal waters off eastern Shandong Peninsula contributes significantly to the special sedimentary dynamic environment. Based on temperature, turbidity, and concentration of suspended matter observed during the summer and winter of 2007 and tidal currents and suspended matter observed during the winter of 2017, the seasonal variation for the distribution of suspended matter was analyzed, and the annual suspended matter net flux to the south through eastern Shandong Peninsula in winter was calculated. The sedimentary dynamic environment of the mud wedge was further studied, combined with the distribution of tidal and residual currents in winter. The results show that the distribution of suspended matter in the shelf waters off eastern Shandong peninsula is mostly affected by seasonal variations of the coastal currents, the Yellow Sea cold water mass, and the Yellow Sea warm current. Its concentration in winter is several times larger than in summer. Suspended matter off eastern Shandong Peninsula is restricted near the bottom by vertical water stratification and the Yellow Sea cold water mass in summer. A large amount of suspended matter is transported southward, driven by the strong coastal currents due to strong winter winds, while some suspended matter can also be transported northward by the Yellow Sea warm current. The annual suspended matter net flux in winter through the shelf waters off eastern Shandong Peninsula accounts for 3.22%-9.10% of the annual suspension matter net flux outward through the Bohai Strait, and also accounts for 6.84%-19.38% of the annual suspension matter net flux outward through the Bohai Strait in winter.
王勇智, 张永强, 孙惠凤. 山东半岛东部海域悬浮体分布季节变化及其冬季输送通量研究[J]. 沉积学报, 2019, 37(3): 541-549. doi: 10.14027/j.issn.1000-0550.2018.169
WANG YongZhi, ZHANG YongQiang, SUN HuiFeng. Seasonal Variation of Suspended Matter Distribution and Flux in Coastal Waters of Eastern Shandong Peninsula[J]. Acta Sedimentologica Sinica, 2019, 37(3): 541-549. doi: 10.14027/j.issn.1000-0550.2018.169
| Citation: |
WANG YongZhi, ZHANG YongQiang, SUN HuiFeng. Seasonal Variation of Suspended Matter Distribution and Flux in Coastal Waters of Eastern Shandong Peninsula[J]. Acta Sedimentologica Sinica, 2019, 37(3): 541-549. doi: 10.14027/j.issn.1000-0550.2018.169
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