南黄海西部日照至连云港海域的春季温跃层和化学跃层

利用2016年5月5个站位的温盐深(CTD)和海流(ADCP)同步测量资料,分析南黄海西部日照至连云港海域温跃层和化学跃层的日内生消过程及强度变化,探讨深层水温度、盐度的周期性变化及其与潮流的关系。结果表明:南黄海西部海域在5月已存在日内生消的温跃层和溶解氧(DO)、pH跃层。温跃层厚度为2~4 m,层位水深为4~7 m至7~10 m之间波动,跃层强度最大可达0.80 ℃/m。DO跃层和pH跃层位于温跃层之下,水深为10~14 m,两者的形成在时间上和深度上具有一定的同步性,且不受温跃层控制。在DO跃层之上,氧浓度在白天都保持在相当高的水平,甚至处于过饱和状态,但存在显著波动,其峰值并不出现在...

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Published inHăiyang dĭzhĭ yu dĭsĭjĭ dĭzhĭ Vol. 41; no. 3; pp. 22 - 32
Main Authors QIN Yachao, GAO Fei, SU Dapeng, ZHU, Xiaoqing, XIE Liujuan
Format Journal Article
LanguageChinese
Published Beijing Marine Geology and Quaternary Geology 01.01.2021
海洋国家实验室海洋矿产资源评价与探测技术功能实验室,青岛 266071
自然资源部天然气水合物重点实验室,中国地质调查局青岛海洋地质研究所,青岛 266071
Subjects
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ISSN0256-1492
DOI10.16562/j.cnki.0256-1492.2020080301

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Abstract 利用2016年5月5个站位的温盐深(CTD)和海流(ADCP)同步测量资料,分析南黄海西部日照至连云港海域温跃层和化学跃层的日内生消过程及强度变化,探讨深层水温度、盐度的周期性变化及其与潮流的关系。结果表明:南黄海西部海域在5月已存在日内生消的温跃层和溶解氧(DO)、pH跃层。温跃层厚度为2~4 m,层位水深为4~7 m至7~10 m之间波动,跃层强度最大可达0.80 ℃/m。DO跃层和pH跃层位于温跃层之下,水深为10~14 m,两者的形成在时间上和深度上具有一定的同步性,且不受温跃层控制。在DO跃层之上,氧浓度在白天都保持在相当高的水平,甚至处于过饱和状态,但存在显著波动,其峰值并不出现在表层(0~2 m),而是位于次表层(2~14 m)。在DO跃层之下,氧浓度低且稳定,约为4 mg·L−1,向下呈缓慢降低的趋势。pH跃层表现为垂向上的快速跳变,包括向下的正跳变和负跳变,强度最大值可达0.03~0.04个pH单位。小潮期间,温跃层稳定,强度较大;大潮期间,温跃层强度明显减弱,稳定性变差;这表明潮流的增强对温跃层有明显的抑制和破坏作用。深层水的温度、盐度等参数存在日内周期性变化,与潮位变化同步,是潮流驱动下水体水平对流的结果。
AbstractList P731.1; 利用2016年5月5个站位的温盐深(CTD)和海流(ADCP)同步测量资料,分析南黄海西部日照至连云港海域温跃层和化学跃层的日内生消过程及强度变化,探讨深层水温度、盐度的周期性变化及其与潮流的关系.结果表明:南黄海西部海域在5月已存在日内生消的温跃层和溶解氧(DO)、pH跃层.温跃层厚度为2~4?m,层位水深为4~7?m至7~10?m之间波动,跃层强度最大可达0.80?℃/m.DO跃层和pH跃层位于温跃层之下,水深为10~14?m,两者的形成在时间上和深度上具有一定的同步性,且不受温跃层控制.在DO跃层之上,氧浓度在白天都保持在相当高的水平,甚至处于过饱和状态,但存在显著波动,其峰值并不出现在表层(0~2?m),而是位于次表层(2~14?m).在DO跃层之下,氧浓度低且稳定,约为4?mg·L?1,向下呈缓慢降低的趋势.pH跃层表现为垂向上的快速跳变,包括向下的正跳变和负跳变,强度最大值可达0.03~0.04个pH单位.小潮期间,温跃层稳定,强度较大;大潮期间,温跃层强度明显减弱,稳定性变差;这表明潮流的增强对温跃层有明显的抑制和破坏作用.深层水的温度、盐度等参数存在日内周期性变化,与潮位变化同步,是潮流驱动下水体水平对流的结果.
利用2016年5月5个站位的温盐深(CTD)和海流(ADCP)同步测量资料,分析南黄海西部日照至连云港海域温跃层和化学跃层的日内生消过程及强度变化,探讨深层水温度、盐度的周期性变化及其与潮流的关系。结果表明:南黄海西部海域在5月已存在日内生消的温跃层和溶解氧(DO)、pH跃层。温跃层厚度为2~4 m,层位水深为4~7 m至7~10 m之间波动,跃层强度最大可达0.80 ℃/m。DO跃层和pH跃层位于温跃层之下,水深为10~14 m,两者的形成在时间上和深度上具有一定的同步性,且不受温跃层控制。在DO跃层之上,氧浓度在白天都保持在相当高的水平,甚至处于过饱和状态,但存在显著波动,其峰值并不出现在表层(0~2 m),而是位于次表层(2~14 m)。在DO跃层之下,氧浓度低且稳定,约为4 mg·L−1,向下呈缓慢降低的趋势。pH跃层表现为垂向上的快速跳变,包括向下的正跳变和负跳变,强度最大值可达0.03~0.04个pH单位。小潮期间,温跃层稳定,强度较大;大潮期间,温跃层强度明显减弱,稳定性变差;这表明潮流的增强对温跃层有明显的抑制和破坏作用。深层水的温度、盐度等参数存在日内周期性变化,与潮位变化同步,是潮流驱动下水体水平对流的结果。
Author GAO Fei
SU Dapeng
ZHU, Xiaoqing
XIE Liujuan
QIN Yachao
AuthorAffiliation 自然资源部天然气水合物重点实验室,中国地质调查局青岛海洋地质研究所,青岛 266071;海洋国家实验室海洋矿产资源评价与探测技术功能实验室,青岛 266071
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SU Dapeng
ZHU Xiaoqing
XIE Liujuan
QIN Yachao
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Keywords 化学跃层
pH剖面
DO剖面
南黄海
潮流
温跃层
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PublicationTitle_FL Marine Geology & Quaternary Geology
PublicationYear 2021
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海洋国家实验室海洋矿产资源评价与探测技术功能实验室,青岛 266071
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Snippet 利用2016年5月5个站位的温盐深(CTD)和海流(ADCP)同步测量资料,分析南黄海西部日照至连云港海域温跃层和化学跃层的日内生消过程及强度变化,探讨深层水温度、盐度的周期性变化及其与潮流的关系。结果表明:南黄海西部海域在5月已存在日内生消的温跃层和溶解氧(DO)、pH跃层。温跃层厚度为2~4 m,层位水深为4~7...
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SubjectTerms Acidification
Chemocline
Coasts
Deep water
Depth
Dissolved oxygen
Doppler sonar
Limnology
Neap tides
pH
pH effects
Salinity
Salinity effects
Spring tides
Surface layers
Sustainability
Temperature
Thermocline
Tidal currents
Time series
Water currents
Title 南黄海西部日照至连云港海域的春季温跃层和化学跃层
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