黄河三角洲桩西101站潮沟地貌形态及其水动力学研究  

MORPHOLOGY AND HYDRODYNAMICS OF THE TIDAL CHANNEL NEAR WELL 101, ZHUANGXI,YELLOW RIVER DELTA

作　　者：尹延鸿[1] 成国栋[1] 范顺庭[2] 王玉荣[2] 朱兰部[2] 

机构地区：[1]地质矿产部海洋地质研究所,青岛266071 [2]中国科学院海洋研究所,青岛266071

出　　处：《海洋科学》1997年第5期46-49,共4页Marine Sciences

基　　金：国家自然科学基金资助项目!49476 2 82号

摘　　要：在潮沟下游 ,横跨且垂直与潮沟的横断面设了 5个观测站 ,进行了 2 4h的水动力测量。结果表明 ,涨落潮流速流向不对称。在潮沟内 ,涨落潮流流速差别很大 ,涨潮流流速最大为 9cm/s,而落潮流流速最大可达 38cm/s。据推测 ,潮沟内之所以落潮流流速明显大于涨潮流流速 ,可能是由于潮沟与岸线斜交有关。由于潮沟与岸线斜交 ,构成了更大的汇水面积 ,从而使得落潮时海水向潮沟内汇聚 ,故落潮流流速大增。Research into the hydrodynamics of the tidal channel near Well 101, Zhuangxi, Yellow River delta was carried out. Crossing the tidal channel, we have set up 5 stations and measured its hydrodynamic. It was found that the current velocities and current directions of flooding and ebbing tide are asymmetry in the tidal channel. A small flooding tide current velocity (smaller than 9 cm/s) and a larger ebbing tide current velocity (up to 38 cm/s) are found. The sea water converges toward the oblique tidal channel and makes a larger ebbing tide current velocity durring ebbing tide.

关 键 词：黄河三角洲 三角洲 潮沟 地貌形态 水动力学 

分 类 号：P931.1[天文地球—自然地理学] TV143[水利工程—水力学及河流动力学]