黄河口附近海域表层悬浮体分布及粒度特征

周良勇; 李安龙; 龚淑云; 刘勇; 赵东波; 温国义

黄河口附近海域表层悬浮体分布及粒度特征

1 中国海洋大学海洋地球科学学院, 青岛 266003;
2 青岛海洋地质研究所, 青岛 266071;
3 深圳市地质勘查局, 深圳 518023;
4 福建海洋研究所, 厦门 361012;
5 国家海洋局北海环境监测中心, 青岛 266033

基金项目:

中国地质调查局国土资源大调查项目(200111000003)

国家自然科学基金项目(50339050)

详细信息

作者简介:
周良勇(1971-),男,副研究员,主要从事海岸带环境地质调查与研究,E-mail:zhouebox@yahoo.com

中图分类号: P736.21
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出版历程
- 收稿日期: 2007-03-27
- 修回日期: 2007-06-21

SPATIAL DISTRIBUTION AND GRAIN-SIZE CHARACTERISTICS OF SUSPENDED MATTERS IN SURFACE WATER OF YELLOW RIVER MOUTH

1 College of Marine Geosciences, Ocean University of China, Qingdao 266100, China;
2 Qingdao Institute of Marine Geology, Qingdao 266071, China;
3 Geological Survey of Shenzhen City, Shenzhen 518023, China;
4 Fujian Institute of Oceanology, Xiamen 361012, China;
5 North China Sea Environmental Monitoring Center of State Oceanic Administration, Qingdao 266033, China

摘要

摘要: 利用2001年7月进行的两船同步走航调查资料,结合同一时期的陆地卫星合成图像,对枯水期黄河口表层悬浮体空间分布和粒度特征进行了研究。低潮时,黄河河口表层悬浮体含量、温度、盐度在河口口门外5 km范围内变化迅速,表层悬浮体含量和温度向海方向呈指数方式迅速降低,悬浮体含量由519 mg/L下降到20~30 mg/L,温度则下降4℃左右;盐度则由1升至33。表层悬浮体含量的变化与表层水体温度、盐度变化有很好的对应关系,温度、盐度变化反映了河流注入的淡水在表层与海水的混合过程。与调查时期接近的一景遥感图像(RGB321)对照,可以看出图像色调变化与测量数值的变化比较吻合。悬浮体平均粒径为6.64~5.26 Φ,以粉砂为主。沿测线由河口向海方向,粒度成分和粒径的变化趋势明显,粒径逐渐变粗,黏土成分减少而砂的成分增多,这可能与絮凝作用有关。
- 表层悬浮体 /
- 粒度特征 /
- 漂浮羽状流 /
- 黄河三角洲
Abstract: Data from two-vessel investigation in Yellow River delta have been used to examine the surface bouyant plumes during the ebb period,together with the remote sensing image. Concentration of suspended matters, water temperature and salinity change dramatically in surface water within 5 km beyond Yellow River delta; concentration descreases from 519 to 20~30 mg/L and temperature drops by 4℃, while water salinity increases from 1 to 33. These variations correspond with each other, showing the mixture of river outflow with seawater. The remote sensing image indicates complicated pattern of suspended matter scattering, which can correlate with the field data. Mean grain size of suspended matters in surface water range from 6.64 to 5.26 Φ,coarsing towards the sea.Granulometric parameters of surface water at the Yellow River mouth are different from those of the Yangtse River estuary.
- surface suspended matter /
- grain size characteristics /
- river plumes /
- the Yellow River delta

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参考文献(14)

[1]	Dagg M, Benner R, Lohrenz S,et al.Transformation of dissolved and particulate materials on continental shelves influenced by large rivers:plume processes[J]. Continental Shelf Research,2004, 24:833-858.
[2]	Wright L D, Yang Z S, Bomhold B D, et al.Hyperpyenal plumes and plume fronts over the Huanghe (Yellow River)delta front[J]. Geo-Mar.Lett., 1986,6:97-105.
[3]	Wright L D, Wiseman W J, Yang Z S, et al.Processes of marine dispersal and deposition of suspended silts off the modern mouth of the Huanghe (Yellow River)[J]. Cont. Shelf Res.,1990,10(1):1-40.
[4]	谷源泽,姜明星,徐丛亮,等.黄河口清8出汊工程的作用及对河口演变的影响[J].泥沙研究,2000(5):57-61.[GU Yuan-ze, JIANG Ming-xing., XU Cong-liang,et al. The impact on the project of the Yellow River esturay Qing 8 and its influence on estuary evolution[J]. Journal of Sediment Research,2000(5):57-61.]
[5]	程义吉,程建刚.黄河口新口门海域流场分析[J].海岸工程,2000,19(4):5-11. [CHENG Yi-ji,CHENG Jian-gang.Analysis of the current field in the new Yellow River entrance sea area[J]. Coastal Engineering,2000,19(4):5-11.]
[6]	张建华,徐丛亮,高国勇.2002年黄河调水调沙试验河口形态变化[J].泥沙研究,2004(5):67-71.[ZHANG Jian-hua,XU Cong-liang,GAO Guo-yong.Regime variation of the Yellow River Estuary during 2002 ' water and sediment regulation test[J].Joumal of Sediment Research,2004(5):67-71.]
[7]	Li G, Wei H, Yue S,et al.Sedimentation in the Yellow River delta, part Ⅱ:suspended sediment dispersal and deposition on the subaqueous delta[J].Marine Geology,1998, 149:113-131.
[8]	Tassan S.Local algorithms using SeaWiFS data for the retrieval of phytoplankton, pigments, suspended sediment, and yellow substance in coastal waters[J].Applied Optics., 1994, 33(12):23-69.
[9]	李炎,李京. 基于海面-遥感器光谱反射率斜率传递现象的悬浮泥沙遥感算法[J].科学通报,1999,44(17):1892-1897. [LI Yan, LI Jing.A suspended sediment satellite sensing algorithm based on gradient transiting from water-leaving to satellite-detected reflectance spectrum[J]. Chinese Science Bulletin,2000,45(10):925-930.]
[10]	李四海,恽才兴.河口表层悬浮泥沙气象卫星遥感定量模式研究[J].遥感学报,2001,5(2):154-160. [LI Si-hai,YUN Cai-xing. A study on the quantitative model of the suspended sediment concentration from the Metrorological satellite imagery[J].Journal of Remote Sensing,2001,5(2):154-160.]
[11]	Ramaswamy V, Rao P S, Rao K H,et al.Tidal influence on suspended sediment distribution and dispersal in the northern Andaman Sea and Gulf of Martaban[J].Marine Geology,2000, 208:33-42.
[12]	曹文洪,刘青泉.波浪掀沙的动力学机理分析[J].水利学报, 2000(1):49-59.[CAO Wen-hong,LIU Qing-quan.Analysis on dynamic mechanism of sediment winnowing caused by wave[J].Shuili XueBao,2000 (1):49-59.]
[13]	Li G, Yue S, Zhao D,et al.Rapid deposition and dynamic processes in the modern Yellow River mouth[J].Mrine Geology and Quaternary Geology,2004,24(3):29-35.
[14]	Arnau P, Liquete C, Canals M.River mouth plume events and their dispersal in the northwestern Mediterranean Sea[J]. Oceanography,2004,17(3):23-31.