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Article(id=1322506651639337606, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322506501562937604, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2024.12.550, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1733068800000, receivedDateStr=2024-12-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793239756735, onlineDateStr=2026-10-29, pubDate=1765728000000, pubDateStr=2025-12-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793239756735, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793239756735, creator=13701087609, updateTime=1793239756735, updator=13701087609, issue=Issue{id=1322506501562937604, tenantId=1146029695717560320, journalId=1281212831689347082, year='2025', volume='45', issue='12', pageStart='1211', pageEnd='1316', issueExtLink='null', onlineDate='null', pubDate='1765728000000', pubDateStr='2025-12-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793239720954, creator='13701087609', updateTime=1793239720954, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1253, endPage=1259, ext={EN=ArticleExt(id=1322506651962299015, articleId=1322506651639337606, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=Influence of Topographic Factors on Co-Seismic Deformation of the 2024 MW7.0 Earthquake in Wushi, Xinjiang, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To simulate the impact of terrain on co-seismic deformation, this paper established three different terrain models. The results show that compared with flat terrain, convex terrain reduces the amount of horizontal displacement, while concave terrain significantly increases the amount of horizontal displacement. The terrain difference in the epicentral area of the 2024 Wushi, Xinjiang MW7.0 earthquake is significant, and the impact of the real terrain on the co-seismic deformation of this earthquake is not yet clear. This paper uses the spectral element method to simulate the co-seismic deformation of the Wushi earthquake and compares it with the co-seismic displacement field of D-InSAR. The results indicate that the impact of terrain factors on co-seismic deformation can reach 8.5%, 26.9%, and 6.8% in the E, N, and U directions, respectively.

, authors=Hurong DUAN1, Qi ZHANG1, *, Baopeng XIE1, Yerui ZHANG1, Wei WANG1, authorsList=Hurong DUAN, Qi ZHANG, Baopeng XIE, Yerui ZHANG, Wei WANG, authorCompany=null, correspAuthors=Qi ZHANG, authorNote=

DUAN Hurong, associate professor, majors in geodetic inversion, E-mail:

, correspAuthorsNote=null, copyrightStatement=All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322506656144020120, articleId=1322506651639337606, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=地形因素对2024年新疆乌什MW7.0地震同震形变的影响, columnId=1322506193558422163, journalTitle=大地测量与地球动力学, columnName=地震地质, runingTitle=null, highlight=null, articleAbstract=

为模拟地形对同震形变的影响，建立3种不同的地形模型。结果显示，与平坦地形相比，凸起地形使平面位移量减少，而凹陷地形使平面位移量显著增加。2024年新疆乌什MW7.0地震震中区域地形差异较大，真实地形对此次地震同震形变的影响尚不明确。采用谱元法模拟此次乌什地震的同震形变，并将其与D-InSAR同震位移场进行对比。结果表明，在E、N、U方向，地形因素对同震形变的影响分别可达8.5%、26.9%、6.8%。

, authors=段虎荣1, 张琦1, *, 谢宝鹏1, 张晔瑞1, 王巍1, authorsList=段虎荣, 张琦, 谢宝鹏, 张晔瑞, 王巍, authorCompany=null, correspAuthors=张琦, authorNote=

段虎荣，副教授，主要从事大地测量反演研究，E-mail：

, correspAuthorsNote=

张琦，硕士生，主要从事地震位错研究，E-mail：

ZHANG Qi, postgraduate, majors in seismic dislocation research, E-mail:

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DUAN Hurong, associate professor, majors in geodetic inversion, E-mail:

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DUAN Hurong, associate professor, majors in geodetic inversion, E-mail:

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段虎荣，副教授，主要从事大地测量反演研究，E-mail：

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段虎荣，副教授，主要从事大地测量反演研究，E-mail：

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Ω为模型域，∂Ω为自由边界面，Γ为吸收边界面，$\hat{\boldsymbol{n}}$为自由表面的法向量，Σ为断层面，$\hat{\boldsymbol{v}}$为断层面法向量

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红色沙滩球表示2024年乌什Mw7.0地震震源机制, 蓝色沙滩球表示GCMT收录的研究区附近历史上发生的超过5级地震的震源机制

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Sentinel-1A satellite data used in this paper

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卫星轨道 轨道编号 主影像时间 辅影像时间 极化方式 时间基线/d
升轨 T56 2024-01-14 2024-01-26 VV 12
降轨 T34 2024-01-13 2024-01-25 VV 12
), ArticleFig(id=1322506665958691538, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322506651639337606, language=CN, label=表1, caption=

本文使用的Sentinel-1A卫星数据

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卫星轨道 轨道编号 主影像时间 辅影像时间 极化方式 时间基线/d
升轨 T56 2024-01-14 2024-01-26 VV 12
降轨 T34 2024-01-13 2024-01-25 VV 12
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地形因素对2024年新疆乌什MW7.0地震同震形变的影响
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段虎荣 1 , 张琦 1, * , 谢宝鹏 1 , 张晔瑞 1 , 王巍 1
大地测量与地球动力学 | 地震地质 2025,45(12): 1253-1259
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大地测量与地球动力学 |地震地质 2025 , 45 (12) : 1253 -1259
地形因素对2024年新疆乌什MW7.0地震同震形变的影响
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段虎荣1 , 张琦1, * , 谢宝鹏1, 张晔瑞1, 王巍1
作者信息
  • 1 西安科技大学测绘科学与技术学院, 西安市雁塔中路58号, 710054
通讯作者:

张琦，硕士生，主要从事地震位错研究，E-mail：

ZHANG Qi, postgraduate, majors in seismic dislocation research, E-mail:

作者简介:

段虎荣，副教授，主要从事大地测量反演研究，E-mail：

Influence of Topographic Factors on Co-Seismic Deformation of the 2024 MW7.0 Earthquake in Wushi, Xinjiang
Hurong DUAN1 , Qi ZHANG1, * , Baopeng XIE1, Yerui ZHANG1, Wei WANG1
Affiliations
  • 1 College of Geomatics, Xi'an University of Science and Technology, 58 Mid-Yanta Road, Xi'an 710054, China

    • DUAN Hurong, associate professor, majors in geodetic inversion, E-mail:

出版时间: 2025-12-15 doi: 10.14075/j.jgg.2024.12.550
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摘要
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为模拟地形对同震形变的影响，建立3种不同的地形模型。结果显示，与平坦地形相比，凸起地形使平面位移量减少，而凹陷地形使平面位移量显著增加。2024年新疆乌什MW7.0地震震中区域地形差异较大，真实地形对此次地震同震形变的影响尚不明确。采用谱元法模拟此次乌什地震的同震形变，并将其与D-InSAR同震位移场进行对比。结果表明，在E、N、U方向，地形因素对同震形变的影响分别可达8.5%、26.9%、6.8%。

位错理论  /  地形因素  /  同震形变  /  谱元法  /  乌什MW7.0地震

To simulate the impact of terrain on co-seismic deformation, this paper established three different terrain models. The results show that compared with flat terrain, convex terrain reduces the amount of horizontal displacement, while concave terrain significantly increases the amount of horizontal displacement. The terrain difference in the epicentral area of the 2024 Wushi, Xinjiang MW7.0 earthquake is significant, and the impact of the real terrain on the co-seismic deformation of this earthquake is not yet clear. This paper uses the spectral element method to simulate the co-seismic deformation of the Wushi earthquake and compares it with the co-seismic displacement field of D-InSAR. The results indicate that the impact of terrain factors on co-seismic deformation can reach 8.5%, 26.9%, and 6.8% in the E, N, and U directions, respectively.

dislocation theory  /  topographic factor  /  co-seismic deformation  /  spectral element method  /  Wushi MW7.0 earthquake
段虎荣, 张琦, 谢宝鹏, 张晔瑞, 王巍. 地形因素对2024年新疆乌什MW7.0地震同震形变的影响. 大地测量与地球动力学, 2025 , 45 (12) : 1253 -1259 . DOI: 10.14075/j.jgg.2024.12.550
Hurong DUAN, Qi ZHANG, Baopeng XIE, Yerui ZHANG, Wei WANG. Influence of Topographic Factors on Co-Seismic Deformation of the 2024 MW7.0 Earthquake in Wushi, Xinjiang[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (12) : 1253 -1259 . DOI: 10.14075/j.jgg.2024.12.550
正文
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新疆中部地处天山构造带，受印度板块与欧亚板块近南北向挤压作用影响，构造活动显著[1]。2024-01-23新疆阿克苏地区乌什县发生MW7.0地震(43.15°N，78.65°E)，造成严重的人员伤亡和财产损失[2]。基于D-InSAR技术获得的同震形变场，学者们采用矩形位错模型反演了断层参数与滑动分布[3-6]，其几何参数虽具有一致性，但滑动分布呈现明显差异性(最大滑动量2.7~4.3 m)[3, 5]。值得注意的是，震区位于塔里木盆地北缘与天山南麓交界带，地形高差超过4 km，而现有反演研究尚未系统考虑复杂地形对位错模型的潜在影响。
为深入研究复杂地形情况下地震波的传播特性，学者们运用了很多先进的数值模拟技术[7]。其中，谱元法(SEM)兼顾有限元法网格的灵活性和伪谱法的高精度、快速收敛特性，能够基于波动方程的弱形式引入地形[8]。但不同学者对地形因素在同震形变中的影响持有不同观点：Lin等[9]发现汶川地震中地形对同震位移的影响达9.05%；林晓光等[10]指出东京大地震垂直向位移的92%受地形控制；Langer等[11]通过谱元法模拟证实尼泊尔地震位移场显著地受局部地形调制。然而，Trasatti等[12]和Williams等[13]认为，在平缓地形区地形效应可忽略不计，其影响量级低于地壳异质性。SPECFEM-X软件基于谱元法框架，实现了地震形变场的高效模拟[14]。王金驰等[8]应用该软件分析芦山地震同震形变，发现地形对断层两侧位移的影响分别为16.8%(沿断层面)和19.2%(垂直断层面)。但该研究存在GNSS数据密度不足、影响量化公式不完善[10]等问题，特别是位移比计算中未建立统一的参照基准(断层两侧位移未独立归一化处理)，导致结果可靠性受限。
本文以2024年乌什MW7.0地震为研究对象，基于多源反演模型[3-6]构建三维断层系统，结合高精度地形数据，采用改进的谱元法数值模型模拟同震形变场。通过建立修正的位移影响量化公式(以同侧最大位移为归一化基准)，系统分析D-InSAR观测数据与数值模拟结果的时空关联性，定量评估地形因素对断层参数反演的调制效应，为复杂构造区地震机理研究提供新的分析范式。
1 矩密度张量震源模型
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基于谱元法计算同震形变，本质为求解与震源相关的运动方程。本文使用矩密度张量法建立矩形均匀滑动断层模拟震源模型。在非均匀各向异性介质空间(图 1)，弹性动力学方程描述了震源断层运动与观测点位移之间的关系：
$\rho \frac{\partial^2}{\partial t^2} \boldsymbol{u}-{{\nabla}} \cdot \boldsymbol{\sigma}=f$
式中，ρ为质量；u为位移张量；σ为应力张量；▽=$\left(\frac{\partial}{\partial x}, \frac{\partial}{\partial y}, \frac{\partial}{\partial z}\right)$；f为等效面力密度函数。σ可由胡克定律表示为：
$\boldsymbol\sigma=\boldsymbol{C}: \boldsymbol\varepsilon$
式中，C为刚度张量；ε为应变张量，且在模型自由边界∂Ω满足σ·$\hat{\boldsymbol{n}}$=0, $\hat{\boldsymbol{n}}$为模型自由表面的法向量。
震源由断层面上的滑动矢量Δs定义为：
$\Delta \boldsymbol{s}=\boldsymbol{s}^{+}-\boldsymbol{s}^{-}$
断层相对运动位移矢量的法向分量在断层上必须连续，即$\hat{\boldsymbol{v}}$Δs=0。给定滑动矢量Δs和断层面法向量$\hat{\boldsymbol{v}}$，矩密度张量 m由下式给定：
$\boldsymbol{m}=\boldsymbol{C}: \hat{\boldsymbol{v}} \Delta s$
矩密度张量是对称的，即m=mT。因为滑动仅限于断层面，可用狄拉克函数表示震源：
$f(\boldsymbol{x})=-\boldsymbol{m}\left(\boldsymbol{x}_{\mathit\Sigma}\right) \cdot \nabla \mathsf{δ}\left(\boldsymbol{x}-\boldsymbol{x}_{\mathit\Sigma}\right)$
式中，xΣ为断层面上定义滑动的位置。
2 数值模拟
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在弹性半空间均匀介质中构建3种具有小山、平地和盆地特征的模型，尺寸均为40 km× 40 km×20 km，单元格网的平均长度为1 km。小山与盆地模型的地表曲面函数关于z=0对称，3种模型的最值点对应的高程分别为4 km、0 km和－4 km，包含的格网单元分别为24 480个、27 880个和24 480个。模型的泊松比为0.24，杨氏弹性模量为5.60 GPa，具体见图 2，图中红色矩形表示嵌入模型的5 km×5 km垂直断层，该断层走向平行于x轴，深度为5.5 km(以断层上边缘为参考，与无地形表面的距离)。
为体现地形的影响特征，本文将断层运动设定为纯左旋走滑，走滑量为10 m。利用谱元法模拟的同震位移结果见图 3，从图中第1列可以看出，3种模型的E向分量均呈四象限分布，位移场的正负波瓣形态相似，且数值具有对称性。然而，盆地模型的E向分量数值明显大于其他2种模型，在第2列和第3列中也可观察到相同的趋势。从盆地、平地到小山模型，3个轴向的形变图中位移波瓣的轮廓逐渐变得更圆润，且相邻波瓣之间的距离增大。与平地模型相比，小山模型E向、N向位移分量的中心有2个多余的小波瓣。
为进一步探讨地形因素对同震形变的局部放大效应，选择图 3中各子图的对角线位置的剖面进行分析，剖面线起始点为(－20 km，－20 km)，终止点为(20 km，20 km)。由图 4(a)和4(b)可知，E向、N向的位移剖面关于原点中心对称。当－7.5 km < x < 0 km时，在x=－2.5 km处，盆地模型达到位移最大值，而小山模型在该位置达到位移最小值。盆地模型的位移值远大于平地模型，平地模型的位移值大于小山模型，这主要是因为盆地模型的地表中心距震源断层最近，而小山模型最远。当－20 km < x < －7.5 km时，3种地形之间的位移差异逐渐缩小。由图 4(c)可知，U向的位移剖面关于纵坐标轴对称。当－7.5 km < x < 0 km时，盆地模型的位移值大于平地与小山模型；当－20 km < x < －7.5 km时，3种地形同震位移量的差异逐渐缩小。
综上，相对于平坦地形，凸起地形使位移场形态分散，位移量的绝对值减少；凹陷地形使位移场形态聚集，位移量的绝对值增加。
3 基于谱元法获取2024年乌什MW7.0地震同震形变
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3.1 研究区概况
天山山脉位于中亚地区，整体呈EW向延展，随着新生代印度板块与欧亚板块的碰撞，天山岩体向盆地扩展，并在推覆体根部逐渐形成迈丹-沙依拉姆断裂[1]。新疆阿克苏地区乌什县地处塔里木盆地西北边缘、天山南麓，三面环山，周围发育有迈丹-沙依拉姆断裂和温宿北断裂。在这些断裂带两侧，海拔高度从约6 km急剧下降至约2 km，地形高差超过4 km。历史上，该区域发生过多次逆冲型地震，包括1987年MW6.1、1998年MW5.1、2005年MW5.1、2009年MW5.3和2020年MW5.4地震(图 5)。北京时间2024-01-23 02:09乌什县发生MW7.0地震，震源深度22 km，此次地震震中的地形差异为研究地形因素对地震同震形变的影响提供了良好的条件。
3.2 模型构建
为研究地形因素对地震同震形变的影响，分别建立平均高程平面模型和地形模型(图 6)。2种模型包含的地下介质均为4层(模型的介质信息参考Crust1.0数据集)，由上到下的深度分别为0~23 km、23~44 km、44~53 km、53~78 km；材料泊松比分别为0.24、0.24、0.26、0.28；杨氏模量分别为8.59 GPa、9.24 GPa、11.83 GPa、17.14 GPa；地形数据选取ETOPO1，空间分辨率约为2 km。平面与地形模型的尺寸为171 km×222 km×78 km，使用六面体单元离散化，平均网格间距为4 km；平面模型共有44 688个网格单元，56 373个节点；地形模型有43 688个网格单元，49 020个节点。地震发生后，许多学者基于D-InSAR数据反演该地震的断层滑动分布[3-4, 6]，结果均表明此次地震的断层滑动以逆冲为主，且伴有少量右旋走滑，断层最大滑动量为3.5~4.3 m，深度为5~20 km，在0~5 km深度的滑动量接近0 m。综合上述研究成果，设置断层长度为30 km，宽度为15 km，断层上边缘距地表为5 km，走向为230°，倾角为57°，断层面所有单元网格的倾滑量均为3.7 m，走滑量均为－0.4 m。
3.3 结果分析
基于谱元法计算平面模型与地形模型的同震形变，结果见图 7。可以看出，2种模型在E向、N向和U向位移分布的整体形态大致相似，但仍存在差异。以E向位移图中第一象限黄色波瓣为例，平面模型的波瓣比地形模型的波瓣更大且更加规则、圆润。地形因素也会改变同震位移的大小。地形模型在UTM坐标系下，E向位移范围为－350~314 mm，N向位移范围为－815~238 mm，U向位移范围为－497~655 mm。地形模型相对于平面模型而言，E向位移变化范围为－27~27 mm，N向位移变化范围为－60~64 mm，U向位移变化范围为－30~34 mm。
从力学角度分析，地应力场的变化受构造应力、重力应力和地形起伏三者的共同影响。从地形因素来看，本次地震发生在南天山与塔里木盆地之间，二者间存在显著的高差。断层北侧的天山地形对塔里木盆地西北边缘的水平地应力起到了增强作用，地形差异导致了应力的局部积聚[15]。从构造应力因素来看，震中附近压应力轴呈近SN向的水平挤压，最优主应力轴则呈现近垂直的拉张状态[1]。塔里木盆地的俯冲作用促使天山山脉隆起，导致该地区的应力场呈现逆冲型特征。此构造背景使得该区域的应力分布复杂，为地震的发生提供了条件。总之，天山和塔里木盆地之间的地形差异及构造应力的作用共同影响了该地区的应力场，从而导致地震的发生，这也解释了谱元法模拟结果中N向位移差异最大的原因。
4 讨论
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4.1 D-InSAR与谱元法获取的同震位移对比
为验证谱元法模拟同震形变的有效性，本文收集了图 5方框范围的Sentinel-1升轨和降轨雷达影像，详细信息见表 1。使用二轨差分干涉技术获取2024-01-23乌什MW7.0地震升降轨LOS向形变场。为确保配准精度，采用特征点匹配方法对SAR影像进行配准，同时对影像在距离向和方位向按10:2进行多视处理，以减少相位噪声。在干涉处理过程中，使用NASA提供的SRTM 30 m分辨率数字高程模型减弱复杂地形引起的相位差异；利用欧洲航空局提供的精密轨道数据去除与平地效应相关的相位差。完成干涉处理后，使用Goldstein方法对图像进行滤波，采用64像素×64像素的窗口对图像进行平滑处理，以进一步减少噪声。此外，使用GACOS数据对大气延迟进行校正，相位解缠通过最小费用流法实现，当像元的相干性系数大于0.3时，获取其绝对相位。最后，将解缠后的相位结果转化为WGS84坐标系中的同震位移值。为便于与谱元法模拟结果进行对比，本文将基于谱元法计算的同震形变场转化为LOS向位移。
图 8展示了谱元法与Sentinel-1获取的LOS向升轨与降轨同震位移场，图中靠近雷达卫星的地表位移为正值，远离雷达卫星的地表位移为负值。升轨情况下，在断层北侧，3种方法的位移均为正值，发生了抬升，且形态分布一致。Sentinel-1的最大位移为0.80 m，基于谱元法的最大位移为0.77 m。在断层南侧，位移为负值，发生了沉降。谱元法的最大位移为－0.35 m，Sentinel-1的最大位移为－0.12 m。降轨情况下，2种方法在靠近断层北侧的位移均为正值。Sentinel-1的最大位移为0.37 m，谱元法的最大位移为0.47 m。综上，Sentinel-1与谱元法获取的LOS向同震位移的分布形态一致，能较好地反映地震形变，但两者存在一定的量值差异，主要与观测精度、模型假设和处理方法相关。
4.2 改进后的同震形变影响公式
采用林晓光等[10]提出的评价指标衡量地形因素对同震形变的影响：
$\text { Percentage }=\frac{|\Delta i|}{\left|j_{\max }\right|} \times 100 \%$
式中，|Δi|为地形模型与平面模型同震位移之差的绝对值；|jmax|为考虑地形因素后同震位移绝对值的最大值。在本文中，式(6)无法凸显断层两侧形变的差异信息，使用该公式会导致计算结果不准确。本文对式(6)进行改进，分别计算断层北侧与南侧形变的地形影响幅度。对于断层北侧，用该侧同震位移差异的最值Δi除以地形模型下该侧同震位移的最值jmax；断层南侧也采用类似的方法，取两者中的较大数值作为最终结果。
$\text { Percentage }=\left|\frac{ \pm \Delta i}{ \pm j_{\max }}\right| \times 100 \%$
以图 7中N向位移场为例，利用式(6)计算地形影响幅度，差异图中同震位移绝对值的最大值为64 mm，地形模型同震位移绝对值的最大值为815 mm，地形因素影响幅度的百分比为7.9%。利用式(7)计算地形影响幅度，差异图中断层南侧位移的最大值为64 mm，地形模型同侧区域位移量的最大值为238 mm，地形因素影响幅度的百分比为26.9%；差异图中断层北侧位移的最小值为－60 mm，地形模型同侧区域位移量的最小值为－815 mm，地形因素影响幅度的百分比为7.4%。2种方法计算的地形影响结果差异显著。类似地，可以得到E向、U向的地形影响幅度分别为8.5%、6.8%。综上，在UTM坐标系下，地形因素在E向、N向、U向对同震形变的影响可达8.5%、26.9%、6.8%。
5 结语
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谱元法因其快速收敛性和能够自然引入真实地形特性的优势，被广泛应用于地震数值模拟中。本文使用谱元法计算了小山模型、盆地模型和平地模型的地表同震位移场，发现凸起地形使位移场形态分散，位移量的绝对值减少；凹陷地形使位移场形态聚集，位移量的绝对值增加。2024年新疆乌什MW7.0地震震中两侧区域高差显著，这为研究地形因素对地震同震形变的影响提供了良好条件。本文构建了震中区域的地形分层模型和无地形分层模型，以探讨地形因素对同震形变的影响。结果表明，地形因素在E向、N向、U向对同震形变的影响可达8.5%、26.9%、6.8%。为验证谱元法在模拟同震形变中的有效性，本文将震区的D-InSAR同震形变场与谱元法结果进行了对比。结果表明，2种方法的同震位移分布形态一致，但存在一定的量值差异。该差异主要源于观测精度、模型假设和处理方法的不同，此外余震贡献和模型断层滑动分布的不均匀性也可能对此产生影响。今后将考虑在模拟中加入余震分量，并将模型断层划分为多个子断层，赋予不同的滑动参数，以获取更精细的位移结果。
基金
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  • 中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室开放研究基金(SKLGED2022-5-2)
文献
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能懿菡, 韩炳权, 刘振江, 等. InSAR观测揭示的2024年新疆乌什MW7.0地震地表形变及发震断层模型[J]. 武汉大学学报: 信息科学版, 2025, 50 (2): 368- 376
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2025年第45卷第12期
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doi: 10.14075/j.jgg.2024.12.550
  • 接收时间：2024-12-02
  • 首发时间：2026-10-29
  • 出版时间：2025-12-15
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  • 收稿日期：2024-12-02
基金
Open Research Fund of State Key Laboratory of Geodesy and Earth's Dynamics, Innovation Academy for Precision Measurement Science and Technology, CAS(SKLGED2022-5-2)
中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室开放研究基金(SKLGED2022-5-2)
作者信息
    1 西安科技大学测绘科学与技术学院, 西安市雁塔中路58号, 710054

通讯作者:

张琦，硕士生，主要从事地震位错研究，E-mail：

ZHANG Qi, postgraduate, majors in seismic dislocation research, E-mail:

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
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红菇属 Russula 17 8.13
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