黄河口附近水文特征分析   总被引：8，自引：0，他引：8  

侍茂崇赵进平  孙月彦 《山东海洋学院学报》1985,15(2):81-95

The Huanghe River is the second largest river in our country. The average annual runoff at the estuary is 44.28 billion cubic meters, the average annual suspended load is 1.12 billion tons, of which 24% was deposited on the delta, 40% on the coast and the rest 36% is considered to be carried into the deep sea by various dynamic factors. We‘ve measured the temperature, salinity, current and suspended load in the estuary from autumn of 1983 to summer of 1984 for building a harbour in future. According to our data and other historical data from some institutes, we‘ve obtained following conclusions: 1) The distribution of temperature in winter is different with from that in summer: the contours of temperature in winter is parallel to coast line,and the contours of temperature in summer is coincident with latitudes. 2) The salinity in summer is lower than that in winter. There are three tongues of low values of salinity at the estuary in summer. They are pointed to North,North-east and South-east respectively. Only two tongues are appeared in winter-northward and south-eastward. 3) The distribution of suspended load is similar to the distribution of salinity,There are three tongues of high values of suspended load at the estuary in summer, they are pointed to North,North-east and Southeast respectively,the quantity of suspended load per litre in winter is much than in summer. 4) The influence of Huanghe River to North area of the estuary is less than to Laichou Bay. 5) The velocities of tide current at the estuary are very large.The maximum value is about 150era/see, and the directions of tide current are parallel to coastline.  相似文献   

测报数据人工查算方法的探讨     

毕立海 《海洋技术学报》1996,15(2):71-73

测报数据人工查算方法的探讨毕立海（国家海洋局烟台海洋管区）１简述海洋台站自七月一日起利用ＰＣ—３８６微机进行测报业务工作，由于海洋台站均处在边远的海岛，市电经常停电，ＰＣ—３８６微机配置的ＵＰＳ不间断电源的持续时间为１５～２０分钟，这时各种观测数据将...  相似文献   

湿地水文模型浅析   总被引：1，自引：0，他引：1  

朱爱美  叶思源  卢文喜 《海洋地质前沿》2006,22(9):27-31

介绍了湿地系统模型的研究现状。分别阐述湿地水量模型、地表及地下水模型、溶质运移模型、蒸散模型及泥沙运移模型,并对当前湿地综合模型系统进行评述,指出建立湿地模型的意义及存在的问题。  相似文献   

A Moored Underwater Energy Conservation System for Profiling Measurement   总被引：3，自引：0，他引：3  

龚德俊陈永华  李思忍徐永平 姜静波 《中国海洋工程》2007,21(3):541-548

There is a need to obtain the hydrologic data including ocean current,wave,temperature and so on in the South China Sea.A new profiling instrument which does not suffer from the damage due to nature forces or incidents caused by passing ships,is under development to acquire data from this area.This device is based on a taut single point mid-water mooring system.It incorporates a small,instrumented vertically profiling float attached via an electromechanical cable to a winch integral with the main subsurface flotation.On a pre-set schedule,the instrument float with sensors is winched up to the surface if there is no ship passing by,which is defined by an on-board miniature sonar.And it can be immediately winched down to a certain depth if the sonar sensor finds something is coming.Since,because of logistics,the area can only be visited once for a long time and a minimum of 10 times per day profiles are desired,energy demands are severe.To respond to these concerns,the system has been designed to conserve a substantial portion of the potential energy lost during the ascent phase of each profile and subsequently use this energy to pull the instrument down.Compared with the previous single-point layered measuring mode,it is advanced and economica1.At last the paper introduces the test in the South China Sea.  相似文献   

喀喇昆仑山至昆仑山地区湖水溶解氧特性分析   总被引：2，自引：0，他引：2  

姚宁钢 《海洋湖沼通报》1990,(2):49-53

本文根据喀喇昆仑山至昆仑山地区湖泊考察中获得的资料,分析了溶解氧及其饱和度与湖水温度、矿化度及湖面海拔高程的关系,并探讨了这些因素对溶解氧日过程及垂直变化的综合影响。  相似文献   

黑潮水入侵南海的水文分析：Ⅱ.1994年8—9月期间的观测结果   总被引：25，自引：0，他引：25  

许建平  苏纪兰 《热带海洋》1997,16(2):1-23,T001

利用１９９４年８－９月期间，由台湾海峡两岸的４艘海洋调查船在南海东北部海域所获之ＣＴＤ和ＡＤＣＰ资料，并结合１９９２年３月间在同一海域获取的ＣＴＤ资料及部分历史水文资料，对该区域的海水特性以及黑潮水入侵南海等问题进行了分析探讨。  相似文献   

隶属函数的方法进行等级预报及隶属函数的构造     

毛祖松 《海洋预报》2003,20(2):74-78

模糊数学在气象、水文预报领域中已经得到广泛的应用。其中，用隶属函数的方法作预报对象的多等级长期预报，能取得较好的效果。本文简要介绍用隶属函数的方法进行长期多等级预报的基本思路和步骤，重点介绍在作上述预报过程中，构造隶属函数的一种方法。  相似文献   

东库克海峡腔吻鳕（Macruronus nouaezelandiae）...     

Murd.  RC 郭若泉 《黄渤海海洋》1991,9(1):12-25

  相似文献   

丁字湾水文环境特征   总被引：1，自引：0，他引：1  

陈聚法 《黄渤海海洋》1997,15(1):58-63

本文依据丁字湾水文观测燃料阐述了该湾温，盐度分布及其变化特征，并对潮汐，潮流和余流进行了分析研究，结果表明：１．丁字湾温，盐度分布的月际差异明显，水温８月最高，盐度９月最低，水温日变化主要受太阳辐射的影响，盐度日变化则明显由潮汐所控制，２．该湾潮汐类型属正规半口潮但潮汐日不等现象明显。３．该湾属于正规半日潮流区域，潮流运行以往复流为主，４．８月湾口中部余流从湾外流向湾内，湾口两端余流流向与中部相反  相似文献   

南疆博斯腾湖近12.OkaB.P.以来古气候与古水文状况的变化   总被引：6，自引：0，他引：6  

钟巍  舒强 《海洋与湖沼》2001,32(2):213-219

对南疆博斯腾湖湖相沉积物多手段的综合研究，揭示了近12.0kaB.P.以来古气候与古水文状况的变化过程与特征。结果表明，其气候的演化特征具有明显的西风型环境演变特征。研究还发现气候于12.0ka、10.0ka、4.0ka和1.5kaB.P.存在显著的阶梯式增暖变干特征，其中暖峰主要出现于11.5—11.0ka、9.4ka、7.5—7.0ka、6.5—6.0ka、3.0ka和2.0kaB.P.，气候特征以干暖为主，湖泊水文特征总体表现为盐度增加、水位下降、湖面缩小；而冷峰主要出现于11.0—10.0ka、8.8ka、5.0—4.5ka、3.3ka和1.5kaB.P.，此时湖泊膨胀淡化，湖面上升。在7.0—5.0kaB.P.期间出现的相对暖湿环境特征可能是全新世大暖期最盛期暖湿气候特征的反映，可能与此时西南夏季风势力增强有关，湖泊水文状况明显变好。  相似文献