TRAVEL Fund Request for Invited Speakers and Junior Scientists to attend seismic imaging conference in Hainan, China

这是为14名来自美国的初级科学家(大部分是研究生，还有一些博士后研究人员)前往海南三亚参加中国地球物理成像研讨会的研讨会提供的旅行支持。中国的国家科学基金会有一些共同资金来支持被邀请的演讲者的当地住宿，以及注册和其他会议费用。国际地震学和地球物理协会？S内部(IASPEI)、SEG(勘探地球物理学家协会)和EAGE(欧洲地球科学家和工程师协会)已经认可并将该研讨会列为他们的正式研讨会或工作坊。地球物理成像是地下构造圈定、目标探测和属性反演的关键。它在地下资源勘探、地壳地幔结构、地震破裂过程与断裂构造、浅层目标探测等方面有着广泛的应用。由于油气勘探和其他成像目标的地质环境日益复杂，如用于监测二氧化碳的封存和污染控制，以及新的采集系统收集的数据量爆炸性增加，对高分辨率、高保真和高效率的成像方法提出了很高的要求。对于高分辨率、高保真的成像，我们需要更多的相空间信息，如局部能量通量的主方向、波场的瞬时频率，而不是直接的空域解。换句话说，我们需要准确和高效的相空间局部化传播子。这种相空间信息在现代真幅度、真反射成像和参数反演中是至关重要的。利用相空间局部化波传播算子--局域AVA(幅度随角度变化)，可以对储集层参数进行局域反演，建立成像与反演的紧密联系。近年来出现的利用快波束、快波包等局域波进行地震成像的方法，引起了人们对局域波成像研究的广泛兴趣。相关的研究已经扩展到物理学、声学、地震学、工程学和数学的许多分支。这次研讨会与其他地球物理会议和研讨会不同的是，它的范围广，学科间的互动。密集的特邀演讲作为不同领域专家的介绍性讲座。

This is workshop travel support for 14 junior scientists (mostly graduate students, with a few postdoctoralresearchers) from the USA to travel to Sanya, Hainan China for the Symposium in geophysicalimaging. The NSF of China has some co-funding to support the local accommodations for theinvited speakers, and for the registrations and other conference expenses. IASPEI (InternationalAssociation of Seismology and Physics of the Earth?s Interior), SEG (Society of ExplorationGeophysicists) and EAGE (European Association of Geoscientists and Engineers) have endorsedand listed the Symposium as their formal symposium or workshop.Geophysical imaging is the key for subsurface structural delineation, target detection andproperty inversion. It has a wide range of applications to subsurface resources exploration, crustand mantle structures, earthquake rapture process and fault structure, and shallow targetdetection. Due to the increasingly high complexity of the geological environments for oil/gasexploration and other imaging targets, such as for monitoring CO2 sequestration and pollutioncontrol, and the explosively increased data amount collected by the new acquisition system, highresolution,high-fidelity and high-efficiency imaging methods are highly in demanding. For highresolution,high-fidelity imaging, we need much more phase-space information, such as the maindirection of the local energy flux, instant frequency of the wavefield, rather than a straightforwardspace-domain solution. In other words, we need accurate and efficient propagators with phasespacelocalizations. Such phase-space information is crucial in modern true-amplitude, truereflectionimaging and parameter inversion. With phase-space localized wave propagators, localAVA (amplitude variation with angle), local inversion for reservoir parameters can be performedand the close link between imaging and inversion can be established. Recently emerged seismicimaging methods using fast beam, fast wavepacket and other localized waves, such as beamlet,curvelet, have brought up broad interests in the study of imaging using localized waves. Therelevant researches have been spread to many branches of physics, acoustics, seismology,engineering and mathematics.The symposium is different from othergeophysical conferences and workshops in its broad scope and interdisciplinary interactions. Theintensive invited speeches serves as introductory lectures by the experts of different fields.