Academic Activities - Joomla 2.5简体中文版 //www.lotudent.com/index.php/zh-CN/res/aca 2024-10-18T10:24:03+00:00 demo2.5 admin@admin.com Joomla! - Open Source Content Management Jeffrey T. Freymueller Visited College of Earth Sciences - 2012-05-14T16:00:00+00:00 2012-05-14T16:00:00+00:00 //www.lotudent.com/index.php/zh-CN/res/aca/12026-sgzsyoyouk8imsum luwang@gucas.ac.cn admin@admin.com <div> </div> <p align=center><img alt="" src="//www.lotudent.com//upload/images/20151030/Jeffrey T. Freymueller.jpg"></p> <div> <div><span style="font-size:10.5pt" lang=EN-US><font size=2 face=Verdana>Jeffrey T. Freymueller Visited College of Earth Sciences and gave a talk titled &quot;Separating hydrologic, cryospheric and tectonic deformation: Examples from Alaska and the Tibetan Plateau&quot; in meeting room of Key Laboratory of Computational Geodynamics,CAS on Dec. 20,2011.</font></span></div></div> <div> </div> <p align=center><img alt="" src="//www.lotudent.com//upload/images/20151030/Jeffrey T. Freymueller.jpg"></p> <div> <div><span style="font-size:10.5pt" lang=EN-US><font size=2 face=Verdana>Jeffrey T. Freymueller Visited College of Earth Sciences and gave a talk titled &quot;Separating hydrologic, cryospheric and tectonic deformation: Examples from Alaska and the Tibetan Plateau&quot; in meeting room of Key Laboratory of Computational Geodynamics,CAS on Dec. 20,2011.</font></span></div></div> Araya Akito visited College of Earth Sciences 2012-05-14T16:00:00+00:00 2012-05-14T16:00:00+00:00 //www.lotudent.com/index.php/zh-CN/res/aca/12027-vg8ilquk2uclehtn luwang@gucas.ac.cn admin@admin.com <p align=center><img alt="" src="//www.lotudent.com//upload/images/20151030/新谷昌人.bmp"></p> <div> </div> <div> </div> <div> <div><font size=2 face=Verdana>Professor Araya Akito visited College of Earth Sciences and gave a talk titled &quot;Broadband geophysical observation using a laser interferometer&quot; in 704 in teaching building on Mar. 1st, 2012.</font></div> <div> </div> <div><font size=2 face=Verdana></font></div> <div><font size=2 face=Verdana>A laser interferometer is widely used in physics, engineering, astronomy, metrology, and so on, for precise measurements. It is useful also in geophysics because it provides precise standard of length which can be used for measurements of crustal deformation. A couple of its geophysical application, a laser strainmeter and a compact absolute gravimeter, will be presented. The laser strainmeter is in operation at Kamioka mine located 1000-m underground, and measures long-term strain changes as well as seismic motion of the ground. We have observed several coseismic strain steps with the resolution of ~10^{-10} in strain, and they can be used for determining seismic moment geodetically even for deep or ocean earthquakes. An absolute gravimeter is used for determining gravity acceleration which gives information on ground density distribution and movement of underground mass. We have been developing a compact absolute gravimeter for the purpose of volcanic observation detecting motion of magma. Current performance of the instrument and its observation before and after the Tohoku earthquake are introduced.</font></div></div> <p align=center><img alt="" src="//www.lotudent.com//upload/images/20151030/新谷昌人.bmp"></p> <div> </div> <div> </div> <div> <div><font size=2 face=Verdana>Professor Araya Akito visited College of Earth Sciences and gave a talk titled &quot;Broadband geophysical observation using a laser interferometer&quot; in 704 in teaching building on Mar. 1st, 2012.</font></div> <div> </div> <div><font size=2 face=Verdana></font></div> <div><font size=2 face=Verdana>A laser interferometer is widely used in physics, engineering, astronomy, metrology, and so on, for precise measurements. It is useful also in geophysics because it provides precise standard of length which can be used for measurements of crustal deformation. A couple of its geophysical application, a laser strainmeter and a compact absolute gravimeter, will be presented. The laser strainmeter is in operation at Kamioka mine located 1000-m underground, and measures long-term strain changes as well as seismic motion of the ground. We have observed several coseismic strain steps with the resolution of ~10^{-10} in strain, and they can be used for determining seismic moment geodetically even for deep or ocean earthquakes. An absolute gravimeter is used for determining gravity acceleration which gives information on ground density distribution and movement of underground mass. We have been developing a compact absolute gravimeter for the purpose of volcanic observation detecting motion of magma. Current performance of the instrument and its observation before and after the Tohoku earthquake are introduced.</font></div></div> Weijia Kuang was Invited to Give A Seminar 2012-04-15T16:00:00+00:00 2012-04-15T16:00:00+00:00 //www.lotudent.com/index.php/zh-CN/res/aca/12025-xa6xfkarfh2tkswv luwang@gucas.ac.cn admin@admin.com <div> <p align=center><font size=2 face=Verdana><img alt="" src="//www.lotudent.com//upload/images/20151030/匡伟佳.bmp"></font></p> <div><font size=2 face=Verdana></font> </div> <div><font size=2 face=Verdana>Doctor Weijia Kuang was invited to give a talk &quot;<span style="color:black" lang=EN-US><span style="font-weight:normal" lang=EN-US>Geomagnetic Variability and Predictability</span></span>&quot; in meeting room of Key Laboratory of Computational Geodynamics,CAS on Feb. 22, 2012.</font></div> <div> </div> <div><font size=2 face=Verdana></font> </div> <div><font size=2 face=Verdana><strong>Weijia Kuang </strong><br>Research</font></div> <div><font size=2 face=Verdana>* Origins of Earth and planetary magnetic fields (geodynamo and planetary dynamo theories): numerical simulation of dynamical processes in the Earth's and planetary cores, and planetary magnetic evolution;<br>* Geomagnetic data assimilation: combining surface observations and dynamical models to predict geomagnetic secular variation, and to estimate the core state;<br>* Geomagnetic/geodynamo applications: time-varying geodetic observables (gravity field, Earth's angular momentum) arising from solid Earth and liquid core interactions;<br>* General computational fluid dynamics and nonlinear differential equations: numerical algorithm development, parallel and grid computation, ensemble analysis.<br><br>Positions and Appointments<br>12/02 - Present Geophysicist/Applied Mathematician, NASA GSFC<br>12/02 - Present Fellow, JCET, University of Maryland, Baltimore County<br>06/98 - 11/02 Research Associate Professor, JCET/UMBC<br>04/92 - 05/97 Research Associate/Post doctoral fellow, Harvard University<br><br>Education<br>Ph.D., Applied Mathematics, University of California, Los Angeles, 1992<br>M.Sc., Physics, Wuhan University, China, 1985 (Honor)<br>B.Sc., Space Engineering Science, Changsha Institute of Technology, China,1982</font></div></div> <div> <p align=center><font size=2 face=Verdana><img alt="" src="//www.lotudent.com//upload/images/20151030/匡伟佳.bmp"></font></p> <div><font size=2 face=Verdana></font> </div> <div><font size=2 face=Verdana>Doctor Weijia Kuang was invited to give a talk &quot;<span style="color:black" lang=EN-US><span style="font-weight:normal" lang=EN-US>Geomagnetic Variability and Predictability</span></span>&quot; in meeting room of Key Laboratory of Computational Geodynamics,CAS on Feb. 22, 2012.</font></div> <div> </div> <div><font size=2 face=Verdana></font> </div> <div><font size=2 face=Verdana><strong>Weijia Kuang </strong><br>Research</font></div> <div><font size=2 face=Verdana>* Origins of Earth and planetary magnetic fields (geodynamo and planetary dynamo theories): numerical simulation of dynamical processes in the Earth's and planetary cores, and planetary magnetic evolution;<br>* Geomagnetic data assimilation: combining surface observations and dynamical models to predict geomagnetic secular variation, and to estimate the core state;<br>* Geomagnetic/geodynamo applications: time-varying geodetic observables (gravity field, Earth's angular momentum) arising from solid Earth and liquid core interactions;<br>* General computational fluid dynamics and nonlinear differential equations: numerical algorithm development, parallel and grid computation, ensemble analysis.<br><br>Positions and Appointments<br>12/02 - Present Geophysicist/Applied Mathematician, NASA GSFC<br>12/02 - Present Fellow, JCET, University of Maryland, Baltimore County<br>06/98 - 11/02 Research Associate Professor, JCET/UMBC<br>04/92 - 05/97 Research Associate/Post doctoral fellow, Harvard University<br><br>Education<br>Ph.D., Applied Mathematics, University of California, Los Angeles, 1992<br>M.Sc., Physics, Wuhan University, China, 1985 (Honor)<br>B.Sc., Space Engineering Science, Changsha Institute of Technology, China,1982</font></div></div> Zuyuan He was Invited to Give A Seminar 2012-02-14T16:00:00+00:00 2012-02-14T16:00:00+00:00 //www.lotudent.com/index.php/zh-CN/res/aca/12024-zeqz8ir5i3laxn1x 系统帐户 admin@admin.com <p align=center><img alt="" src="//www.lotudent.com//upload/images/20151030/东京大学专家何祖源作报告.bmp"></p> <div> </div> <div>Professor Zuyuan He was invited to give a talk &quot;Distributed optical fiber sensing technology and its application in the crustal deformation monitoring&quot; in meeting room of Key Laboratory of Computational Geodynamics,CAS on Feb. 28, 2012.</div> <p align=center><img alt="" src="//www.lotudent.com//upload/images/20151030/东京大学专家何祖源作报告.bmp"></p> <div> </div> <div>Professor Zuyuan He was invited to give a talk &quot;Distributed optical fiber sensing technology and its application in the crustal deformation monitoring&quot; in meeting room of Key Laboratory of Computational Geodynamics,CAS on Feb. 28, 2012.</div>