查询词典 tidal water

In the end we confirms its main functions, which is discharging the folium water on the tidal flat of the Tidal-Basin in the end of the ebb-tide, transporting sediment to Tidal-Basin through tidal creek systems, confining the swing range of the dynamical axis of flood tide or ebb tide, balancing the dynamical status of the South and North.

通过对比分析1973年—2000年的卫片，总结了条子泥沙洲主要潮盆-潮沟系统的近期动态变化特征；并对潮沟系统的历年变化状况进行了对比分析，亦发现了潮沟系统的主要运动特点。

The basal geomorphology structure of the Tidal-Basin System of the Tiaozini Sandbanks is watershed and tidal creek system. We analyses its formation, evolvement, geomorphology characters and development and discusses the main influence factors which is water, sediment and space. We divide the evolution phases which is formation phase, autumn phase and contabescence phase. In the end we confirms its main functions, which is discharging the folium water on the tidal flat of the Tidal-Basin in the end of the ebb-tide, transporting sediment to Tidal-Basin through tidal creek systems, confining the swing range of the dynamical axis of flood tide or ebb tide, balancing the dynamical status of the South and North. At the same time, we compare coastal tidal-basin and sandbanks tidal-basin on geomorphology characters, formation causes, style and so on.

条子泥潮盆—潮沟系统的基本地貌结构为分水滩脊和潮沟系统，本文分别对它们的形成与发育、地貌特点及动态变化进行了分析，并探讨了影响其发育的主要因素，即来水条件、来沙条件、空间条件，划定了其主要发育阶段，即形成期、成熟期、衰亡期；在上述分析的基础上确定了潮盆—潮沟系统的主要功能，即通过潮沟系统渲泄落潮后期滞留在其潮盆范围内的滩面薄层水、通过潮沟系向潮盆内部输入或输出泥沙、限制涨落潮动力主轴摆动范围、平衡南北两侧动力状态；同时针对岸滩潮盆—潮沟系统与沙洲潮盆—潮沟系统的地貌特征、成因类型等进行了对比分析。

The deep water deposition means the deposition in the area where the water depth is larger than 30 meters, in which the major sediments are coarse sand and gravel. This kind of deposition is the relic deposition formed by the Pleistocene alluvial-lacustine deposition reworked under modern channel currents actions, and ususally the Holocene acummulation lack in the deep waters. The transitional zone deposition is the deposition between the low tidal level line and the 30 meters isobath, where the sediment types is changeable and the grain sizes are gradually coarsening from the low tidal line to the deep water area. This kind of deposition is developed by the deep water eroded sediments sorting under the transitional zone current action. The different types distributed along the isobath. The tidal flat deposition is the fine sediment deposition on the tidal flat which is flo sedimentation of the silty clay under the tidal flat dynamic action and ususally developed fluid mud on the lower tidal flat. The channel mouth deposition is the deposition in the channel mouth area. According to the sediment types, it includes sand deposition where there are coarse sediments supply and silt deposition where there are only fine sediments surpport.

峡道深水区沉积是指水深大于30米的峡道底部沉积，它以粗颗粒砂砾石沉积为特色，是现代峡道水动力对第四纪海退时发育的冲洪积和坡积物进行改造形成的蚀余沉积，全新世沉积地层往往缺失；峡道过渡带沉积是指水深介于低潮位线至30米水深线之间发育的峡道边坡沉积，该带沉积以沉积物类型多样为特色，自低潮位线至30米水深线，沉积物粒级逐渐变粗，由粉砂质粘土逐渐递变为中粗砂，是峡道深水区沉积物经多次分选沉积而发育的，基本平行于等深线分布的条带状沉积，在岸坡较陡岸段，过渡带下部可发育重力沉积；峡道潮滩沉积是指在低潮线与海岸线之间发育的细颗粒沉积，它是粘性细颗粒泥沙在潮滩动力作用下，发生动水絮凝沉积而形成的粉砂质粘土沉积，在低潮滩可发育浮泥；峡道口门区沉积则是在峡道汇入大海或海湾时，在峡道出口水流影响所及范围的沉积，根据峡道口门区供给泥沙的特性，峡道口门区沉积有粉砂质淤泥沉积和砂质沉积两种类型。

It is shown from the study results that (1) SSC has obvious neap-spring and seasonal variations with periods being 14.7 days and 368 days, respectively, on an average, SSC during the spring tide was 2.96 times as much as that during the neap tide, and SSC in winter was twice as much as that in summer;(2) correlation coefficient between daily SSC and tidal range on the same day in a mean neap-spring period of 15 days was 0.86, and correlation coefficients between tidal range and daily SSC with one day and two day lag were 0.99 and 0.93, respectively, which indicates that the effect of tidal range variation on SSC has a one day or two day hysteresis;(3) the monthly mean SSC was negatively correlated with the monthly mean water discharge at the Changjiang River Datong station, especially well with the water discharge with a lag of 19 days.

悬沙浓度具有显著的大、小潮和季节性变化，变化周期分别为14.7 d和368 d，平均而言，大潮为小潮的2.96倍，冬季为夏季的2倍；2）平均大、小潮半月周期中日悬沙浓度与同日潮差之间的相关系数为0.86，与前1日潮差之间的相关系数为0.99，与前2日潮差之间的相关系数为0.93，反映潮差变化对悬沙浓度的影响有1~2d的滞后效应；3）月均悬沙浓度与长江大通站的月均流量呈显著负相关，尤其与流量滞后19d的相关性最好。

Beach groundwater table fluctuates with tidal oscillations in coastal unconfined aquifer. The period-averaged water table height is higher than the steady-state water table with the neglect of tidal effects. That is, there exists an overheight between the two.

潮汐海平面上下波动带动毗邻的滨海地下水水位振动，对达到动态稳定后的地下水水位作周期平均后，其位置高出不考虑潮汐作用的稳态水位，即潮汐影响下滨海地下水水位存在超高。

If the continuous, come and go underway observation has been done recurrently by ADCP at the section which close the doorway of the bay among at least26 hours,a series of flux of the bay could be obtained and the storage capacity for tidal water of the semiclosed bay could be computed direc -tly.

一个海湾可以接纳的潮水的体积就是该海湾的纳潮量，它是表征半封闭海湾生存能力的重要指标，其大小直接影响到海湾与外海的交换强度和污染物的迁移扩散，从而制约着海湾的自净能力和环境容量，对于维护海湾良好的生态环境至关重要。

If the continuous, come and go underway observation has been done recurrently by ADCP at the section which close the doorway of the bay among at least26 hours,a series of flux of the bay could be obtained and the storage capacity for tidal water of the semiclosed bay could be computed direc -tly.

文章推荐了一种半封闭海湾纳潮量的直接观测方法，主要利用ADCP在封闭湾口的观测断面上进行周期性的往还式周日连续走航观测，通过观测到的湾口流量变化序列直接计算海湾的纳潮量。

Therelationship between the turbulent kinetic energy and its dissipation rate,whichis widely used to parameterize the dissipation rate in turbulence closure models,is found to hold well for both reversing and rotating flows,but with differentcoefficients.Microstructure profiling measurements at two comparative stations (a deepercentral basin and a local shelf break) in the stratified Yellow Sea are analyzed,with emphasis on tidal and internal-wave induced turbulence near the bottomand in the pyenocline.The water column has a distinct three-layer thermohaline structure,consisting of weakly stratified surface and bottom boundary layers anda narrow sharp pycnocline.Turbulence in the surface layer is controlled by thediurnal cycle of buoyancy flux and wind forcing at the sea surface.while thebottom stress induced by barotropic tidal eurrents dominates turbulence in thebottom boundary layer.The maximum level at which the tidally enhanced mixingcan affect generally depends on the magnitude of the tidal current,and it canbe up to 10-15 m in the Yellow Sea.This suggests that,in the deeper regionsof the shelf seas,turbulent dissipation and mixing are very weak at the levelsbetween the near-bottom tidally enhanced layer and the pycnocline.Therefore,these levels provide a significant bottle neck for the vertical exchanges.In theshallow regions,however,the tidally-induced turbulence can occupy the wholewater colum below the pycnocline.A quarter-diurnal periodicities of the turbulentdissipation rate and eddy diffusivity are found at different heights with evidenttime lag.In the relatively flat central basin,the pycnocline is essentially non-turbulent and internal-wave activity is very weak.Therefore,vertical fluxes acrossthe pycnocline decreased to molecular levels.In contrast,internal waves of variousperiods can be always found near the local shelf break.

对强层化季节黄海两对比性站位(分别位于中央海盆区与局地陆坡区)处层化、内波以及湍流混合特征的研究结果表明：1、强层化季节的陆架海水体一般呈现显著的三层热盐结构，在水体近乎混合均匀的上混合层与潮流底边界层之间为强跃层；2、近表层水体的湍流混合强度主要由海表浮力通量的日变化与海表风强迫控制，而在潮流底边界层内，潮混合是水体热量、物质、动量与能量垂直交换的主要机制；3、潮混合影响的深度由潮流大小决定，在黄海，一般可达10-15 m，因此，在水深较深的区域，在跃层与潮混合所至深度范围的上界之间存在湍流混合非常弱的区域，这显著抑制水体内物质的垂直通量，为物质垂直交换的瓶颈，而在水深较浅的区域，潮混合影响范围可至跃层底部，因此物质在跃层以下整个水体中混合非常均匀，当跃层内间歇性强混合发生时，可以产生显著的跨跃层物质输运；4、近底潮致强湍流耗散缓慢地向上传播，底上不同深度处垂直湍扩散系数也具有显著的位相差异，且二者均随时间呈现四分之一周日周期的变化；5、在地形较为平坦的中央海盆区，内波活动非常微弱，因此跃层内湍流混合非常弱，垂直扩散系数为分子扩散水平，跨跃层物质通量受到显著抑制，而在地形变化较为显著的局地陆坡区，内波活动非常活跃，除内潮的影响外，高频内波与内孤立波的影响也很显著，因此跃层内存在很强的间歇性强混合，内孤立波存在的区域，水体湍流混合显著增强。

In conformity with the overall arrangement made by the state for utilization of water areas, people's governments at and above the county level may assign state-owned water surfaces and tidal flats that have been designated for aquaculture to units under ownership by the whole people and units under collective ownership to develop aquaculture, and after examining their qualifications grant those units aquaculture licences to confirm their rights to the use of such water surfaces and tidal flats.

第十条 县级以上地方人民政府根据国家对水域利用的统一安排，可以将规划用于养殖业的全民所有的水面、滩涂，确定给全民所有制单位和集体所有制单位从事养殖生产，核发养殖使用证，确认使用权。

Article 10 In conformity with the overall arrangement made by the state for utilization of water areas, people's governments at and above the county level may assign state-owned water surfaces and tidal flats that have been designated for aquaculture to units under ownership by the whole people and units under collective ownership to develop aquaculture, and after examining their qualifications grant those units aquaculture licences to confirm their rights to the use of such water surfaces and tidal flats.

第十条 县级以上地方人民政府根据国家对水域利用的统一安排，可以将规划用于养殖业的全民所有的水面、滩涂，确定给全民所有制单位和集体所有制单位从事养殖生产，核发养殖使用证，确认使用权。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。