震相

单台地震观测报告震相数据的验证方法探讨

Study on Method for Verifying Seismic Phase Data in Earthquake Observation Report Got by Single Station

用SP′震相计算乌鲁木齐台附近地壳厚度和地壳内纵波速度

Using seismic phase SF to estimate the crustal depth and crustal compressional velocity near Urumqi station

用Sp震相测定甘肃局部地区地壳厚度

Using s_p phase to determing the crustal thickness in some areas of Gansu Province

文章还给出了分析实际地震记录中震相偏振特性的PP（PolarizationPosition）图方法及震相识别和相位对比中的最佳分量追踪法。

Tracking component in phase correlation and polarization position in polarization analysis were given in this paper .

井下记录的PP和SS震相

PP and SS seismic phases recorded from borehole

PKP震相包含了下地幔底部P波速度结构的重要信息。

Seismic PKP arrivals are sensitive to P velocity structure in the lowermost mantle .

PL波震相特征及其应用综述

An overview of the characteristics of PL wave phase and Its Applications

用Sc震相测定永登地区地壳中间层界面的深度

Using Sc phase to determine the depth of C discontinuity in crust in Yongdeng region

本文归纳总结出人工地震测深中利用垂直向记录识别S波震相的几个准则，提出了P波和S波联合反演地壳结构的方法。

Several rules to distinguish S-wave phase of vertical records in DSS and a method to inverse simultaneously crustal structure by P-and S-wave have been put forward and sumed up .

根据射线理论对二维盆地型场地与P波波列特征的关系、波列中震相的性质及其产生的原因等进行了研究。

The relationship between site structures and the characteristics of P-wave-trains , and the nature of the coda waves in P-wave-trains are studied in this paper according to asymptotic ray theory .

带时间参量t~产的Fourier变换只能分辨不同震相的子波频谱，但不能从根本上把不同的子波分开。

Fourier transform with time parameter t favours identifying the wavelet frequency spectra of different phases , but fails to part different wavelets .

中国多重ScS震相衰减和走时的区域变化

Regional variation of attenuation and travel time in China from analysis of multiple-ScS phases

台湾琉球地区Lg波的震相特征

Characteristics of seismic phase of lg-wave in Taiwan and Ryukyu area

P波定位方法是针对网内及网缘发生较大震级地震时，地震波记录限幅S难以辩认的情况，而编写的单震相定位程序。

Seismic location by P wave is realized by means of locating program of single phase when a larger shock occurred in or near the seismic station network and S wave was limited signal .

台湾海峡南部一次5.0级地震的sPn震相分析

SPn seismic phase analysis for a M_L5.0 earthquake in southern Taiwan Strait

sPn震相的多台同时测定法

Simultaneous determination of the phase sPn with multiple station records

用sPn震相测定近震震源深度

Determination of focal depth with the sPn phase

数字台网观测资料中sPn震相的测定与应用

Determination and application of the phase sPn in the observation of digital seismic network

使用的资料是多个台站记录到的多个地震，所用的震相是Moho面的反射波P11和首波Pn。

ACCURATE ESTIMATION FOR ARRIVAL TIME OF SEISMIC WAVE A great deal of events recorded by several stations arc used , mainly the reflected wave Pn and head wave Pn from Moho .

本文介绍将位移主方向分析法和偏振滤波法应用于PS转换波震相的分析。

In this paper the methods of analysis of the principal direction of the displacement and polorization filtration are used for recognition of the PS converted waves .

根据P波和S波震相的频率特征，小尺度上的小波分解系数对应信号的噪声部分，计算特征函数时可以不考虑这些系数。

According to the frequency features of the P wave and the S wave , we think that the wavelet decomposition coefficient at the smaller scale is corresponding to the noise and should be omitted when calculating the characteristic function .

McNamara&Owens（1993）率先利用接收函数Moho面Ps转换震相的分裂现象研究了地壳介质的各向异性。

McNamara & Owens ( 1993 ) studied the crustal anisotropy utilizing the Ps converted phase on the Moho of the receiver functions .

本文利用PS转换波与初至P波的到时差，提出一种不需要拾取P波和转换波震相的转换界面偏移成像方法。

To avoid the difficulty of picking up transmitted P-wave and converted wave phases , this paper proposed a converted wave migration method by estimating the travel time difference between PS converted wave and PP transmitted wave .

详细推导了弱各向异性介质的地震波速，在此基础上介绍了用Pn震相研究上地幔各向异性的几种具体算法；

Based on the detail derivation of seismic wave velocity in weak anisotropy medium , some calculation methods using Pn phase to upper mantle anisotropy are introduced ;

利用FK扫描技术实现上海地震台阵资料的特殊震相识别

Identification of the special seismic phases in the data recorded by Shanghai seismic array with FK scan technology

利用新疆32个地震台站记录到的1336次MS≥2.0地震的22704条P波和S波震相读数资料，经重新定位后得到其中1133次地震的基本参数。

We used 22 704 pieces of phase data about wave P and S of 1 336 earthquakes with M_S ≥ 2.0 recorded by 32 stations of Xinjiang . By relocating them , we got the basic parameters of 1 133 earthquakes .

对震中距25°~35°且记录良好的5次地震的ScS震相，采用旋转相关函数法反演了岩石圈的剪切波分裂参数。

The approach of rotated correction function is applied to five satisfactory ScS wave recordings at distance of 25 °~ 35 ° to inverse shear wave splitting parameters of lithosphere .

初步的物理解释是：i震相可解释成为（Ps）或（Sp）转换波。该转换波发生在台站下面的低速松散沉积层的底部。

The primary physical explanation is that the i-phase can be interpreted as P-to-S ( Ps ) or S-to-P ( Sp ) converted waves generated at the bottom of the low velocity unconsolidated sediments under station .

和Lg′2、Lg〃2四种震相，不同震区各震相的记录特征明显不同，鲜明地反映出地壳结构由大陆型向海洋型过渡的特点。

The recording characteristics of seismic phase in different area were obvious different , which indicated the transformation of the crustal structure from continental type to marine one .

对于上地幔顶部，在莫霍界面发生临界折射而沿界面传播的Pn和Sn震相是研究该处体波速度结构的关键资料。

For the uppermost mantle , the Pn and Sn phases which critically refract at the Moho surface and propagate along the uppermost mantle are the best choice to study the velocity and anisotropy structure of the uppermost mantle .