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wave phase
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  波相
    LOVE WAVE PHASE VELOCITY MAP IN SOUTHERN GERMANY
    德国南部地区Love波相速度分布
短句来源
    An algorithm of transient reyleigh wave phase velocity
    瞬态瑞利波相速度算法研究
短句来源
    SEISMIC TOMOGRAPHY OF YUNNAN REGION USING SHORT-PERIOD SURFACE WAVE PHASE VELOCITY
    云南地区的短周期面波相速度层析成像研究
短句来源
    GLOBAL SURFACE WAVE PHASE VELOCITY VARIATIONS AND THEIR TECT0NIC IMPLICATIONS
    全球地震面波相速度变化及其大地构造学意义
短句来源
    The article theoretically reveals the interior relations between the spectral amplitude of global surface wave phase velocity and earth structure's differentiability of lateral heterogeneity, analyzes the features of two kinds of different spectral amplitude, and provides some theoretical criteria for choosing suitable parameterization and prior smoothing condition.
    本文从理论上揭示了全球地震面波相速度球谐展开的振幅谱特征与横向非均匀结构微分性质的内在联系,对现今存在的两组不同的高阶振幅谱特征作了进一步的分析,并为选择更为合适的参数化方法或模型光滑度的限制条件提供了某种理论判据。
短句来源
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  波震相
    By effective identification of S wave phase with DSS data and with the caclulation method of S wave splitting parameters, S wave data from Tai'an Xinzhou profile were calculated and analyzed. As a result, reliable evicence was obtained with respect to crustal medium anisotropy and anomaly of regional stress field orirentation in the region.
    利用深地震测深资料进行S波震相的有效识别和S波分裂参数计算方法 ,对泰安—忻州剖面S波资料的计算分析 ,得到了该区域地壳介质各向异性、区域应力场方向异常的可靠证据 .
短句来源
    The direct S wave phase of deep teleseisms with epicentral distance of about 50° can be separated from other seismic phases.
    震中距在 5 0°左右的深源远震 ,直达波S波震相波列可以与其他震相波列分离 .
短句来源
    It is also found that if a continuous transition-region between the crust and the mantle is introduced, we can get a strong apparent head wave phase in synthetic seismogram and the amplitude of this phase increases with the thickness or velocity gradient of the transitional region.
    在壳-幔间断处引入一定厚度和速度变化范围的过渡带,可以得到更加明显的视首波震相,强度随过渡带厚度或速度变化范围的增加而增大.
短句来源
  “wave phase”译为未确定词的双语例句
    The Experiments on the Effects of Mountain Terrain Upon 100kHz Ground Wave Phase
    山区地形对100kHz地波相位影响的实验研究
短句来源
    The influences of relevant parameters such as wave height, wave steepness, relative depth as well as slope of breakwater upon envelope curve and relationship between wave phase and that of reversal stress are also discussed.
    文中探讨了波高、波坦、相对水深、堤坡坡度等参数对该包络图图形的影响; 反压力与波面的相位关系等。
短句来源
    Shear wave phase SKS of 11 earthquakes, collected from 23 stations of Yunnan digital seismic network, is analyzed by fitting the theoretical transverse component with the observed one for determining the orientation and extent of polarization seismic anisotropy of upper mantle.
    对云南 2 3个数字地震台 1 1次地震的 SKS记录 ,采用理论切向分量与实测切向分量拟合的方法 ,确定了快 S波的偏振方向和快、慢波之间的时间延迟 .
短句来源
    Based on the algorithm, the value of transient Reyleigh wave phase velocity is closer to true wave velocity, so the resolving rate and the definition of the phase velocity are improved.
    根据以上算法求得的相速度更接近瑞利波真速度,从而提高了相速度的分辨率和精确度。
短句来源
    Whether there is a cave in rockmass behind stakes can be settled down by the analysis of wave phase, period and amplitude.
    通过对震波的震相、周期和振幅等特征的分析确定桩底下浅层基岩内是否存在洞穴. 震波周期大,反射波到时早,则在浅层基岩内存在洞穴;
短句来源
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  wave phase
It is shown that a gas stream increases the instability of the film and a counter-current gas flow has a greater effect on the wave phase velocity than a co-current flow.
      
The existence of discontinuities is attributable to the distortion of the internal-wave phase pattern in the shear flow and to the varying stratification and subsequent interaction of the waves with the appearing nonuniformities.
      
Allowance for the rotation-induced anisotropy in turbulent diffusion leads to an equatorward deviation of the wave phase velocity from the isorotational surface.
      
The radiation damping constant associated with the possible emission of electromagnetic radiation is determined in the range of Swihart wave phase velocities exceeding the speed of light.
      
Soliton wall superlattice charge-density-wave phase in a magnetic field
      
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On the basis of experimental researches on normal reversal stress due to wave inside the protective armor of sloping breakwater, this paper presents an analysis of envelope curves of maximum reversal stress with the conclusion that the instability of the protective armor of sloping breakwater mostly occurs between breaker depth and striking point, where normal reversal stress of wave attains maximum value. The influences of relevant parameters such as wave height, wave steepness, relative depth as well as slope...

On the basis of experimental researches on normal reversal stress due to wave inside the protective armor of sloping breakwater, this paper presents an analysis of envelope curves of maximum reversal stress with the conclusion that the instability of the protective armor of sloping breakwater mostly occurs between breaker depth and striking point, where normal reversal stress of wave attains maximum value. The influences of relevant parameters such as wave height, wave steepness, relative depth as well as slope of breakwater upon envelope curve and relationship between wave phase and that of reversal stress are also discussed. Based upon the data taken in the laboratory, statistical method is used to deduce an empirical expression of envelope curve of reversal stresses and to give the extent of most disad vantageous loading on protective armor.

本文根据对斜坡堤铺砌块体护面上法向波浪反压力的试验研究,分析了斜坡上最大反压力包络图,指出护坡块体失稳首先发生在破碎水深与打击点之间,该处法向波浪反压力最大。文中探讨了波高、波坦、相对水深、堤坡坡度等参数对该包络图图形的影响;反压力与波面的相位关系等。根据测试数据,应用数理统计方法,给出了反压力包络图的经验表达式和护坡块体最不利受力区域的范围。

Using about 30000 long period seismic waveforms, which are associated with earthquakes M≥6.0 recorded by global digital seismic networks between 1980 and 1992, global Love and Rayleigh wave phase velocity variations in periods of 85s and 250s are obtained. All of waveforms are visually inspected in time and spectral domains, and the used phases are minor and major great circle phases Gl, R1, G2,and R2. Using the hybrid parameterization, in which final block inversion in higher regional resolution...

Using about 30000 long period seismic waveforms, which are associated with earthquakes M≥6.0 recorded by global digital seismic networks between 1980 and 1992, global Love and Rayleigh wave phase velocity variations in periods of 85s and 250s are obtained. All of waveforms are visually inspected in time and spectral domains, and the used phases are minor and major great circle phases Gl, R1, G2,and R2. Using the hybrid parameterization, in which final block inversion in higher regional resolution is embed in an aspherical reference model, and considering of the topography and crustal thickness variation, the inversions are performed with and without shallow layer corrections. Comparing with previous global phase velocity models, the l0ng wave length features are consistent both in magnitudes and variation patterns. The short period phase velocity variations are correlated with continental craton, middle cocean ridge, and tectonic activities,The correlation,however,decreases with period increases,And some oceanic hotspots are related to slow velocity anomalies.

从1980年到1992年间震级M≥6.0天然地震的全球数字地震台网记录,搜集约30000个长周期地震图波形数据,建立了周期为85-250s的全球Love波和Rayleish波相速度变化模型.全部地震图均通过时间域和频率域的质量控制,震相为短大圆弧和长大圆弧基频振型G1,R1,G2和R2.利用将区域高分辨率反演结果嵌入全球模型框架的混合反演参量化方法,以及地形、地貌和地壳厚度模型,得到校正前、后的两种反演结果.与已有全球相速度模型比较,长波分量的幅度和空间图像符合较好.短周期相速度异常反映了地表板块构造,与大陆地盾、大洋中脊和构造活动区相关;板块构造相关性随面波周期增大而逐渐消失;部分海洋热点与100-200s周期的低速异常相联系.

In the study of crustal and upper mantle velocity structure with teleseismic surface wave data, the great circle path and plane wave assumptions of conventional surface wave tomography are no longer valid. By means of the joint inversion method for wave field and velocity structUre developed by Friederich and Wielandt we made a preliminary study on the laterally inhomogeneous distribution of Love wave phase velocities in southern Germany, using Love wave data recorded by the German Regional Seismograph...

In the study of crustal and upper mantle velocity structure with teleseismic surface wave data, the great circle path and plane wave assumptions of conventional surface wave tomography are no longer valid. By means of the joint inversion method for wave field and velocity structUre developed by Friederich and Wielandt we made a preliminary study on the laterally inhomogeneous distribution of Love wave phase velocities in southern Germany, using Love wave data recorded by the German Regional Seismograph Network. The main features of the resulted phase velocity map at various Periods are stable, do not change with the selection of data. The phase velocity of 30 seconds Love wave is mainly affected by the crustal thickness, the phase velocity map correlates well with the known Moho depth distribution. From 39 to 66 seconds the velocity maps change gradually with periods to a pattern controled by tectonic activities in the lower part of lithosphere. T'he phase velocity maps betWeen 75 and 113 seconds indicate clear low velocity zones in Rhine graben and other tectonically active areas. In the tectonically stable area in the northeastern part of study region high velocity PersistS from 20 to 113 seconds Period.

在利用远震面波资料研究小区域内的地壳上地幔速度结构时,传统的面波层析成象所依据的大圆路径和平面波入射假设不能成立.本文利用德国区域地震台网记录的Love波资料,根据Friederich和Wielandt提出的面波波场和速度结构联合反演方法,对德国南部地区的Love波相速度横向不均匀分布作了初步研究.反演得到各个周期面波相速度分布的主要特征是稳定的,不随资料选取而改变.30s左右Love波相速度主要受地壳厚度控制,反演得到的相速度分布与该区域已知的莫霍面深度分布有很好的对应关系.39-66s周期的Love波相速度图像随周期逐渐改变,过渡到一个主要受岩石圈下部上地幔构造活动控制的格局.在75-113s周期范围内的相速度分布图像表明,莱茵地堑等构造活动区为明显的低速区.在研究区域东北部的构造稳定地区,从20-113s周期始终显示为高速区.

 
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