地震波雷达研究展望:用人工震源探测大陆地壳结构
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摘要
综述了地震波雷达三个方面的研究进展:将20世纪后20年发展起来的海洋气枪技术向大陆的移植;电磁波雷达理论和信息处理技术向地震学的应用;新型地震台阵观测技术的出现.我们进行的野外实验表明,建立照亮105km2大陆地区地下结构(深至Moho面)的地震波雷达已经具备了可能性.
Three aspects of the progress in the seismic wave radar research were summarized: the transplantation of air gun technique,developed over the last 20 years of the 20th century,from the Marine to the mainland,the applications of the electromagnetic wave radar theory and information technology to seismology,and the new seismic array observation technique that lately emerged.Finally the field experiments were presented.The experimental results show that it is possible to establish the seismic wave radar that can illuminate 105 km2 of continental areas under ground(deep to Moho).
Three aspects of the progress in the seismic wave radar research were summarized: the transplantation of air gun technique,developed over the last 20 years of the 20th century,from the Marine to the mainland,the applications of the electromagnetic wave radar theory and information technology to seismology,and the new seismic array observation technique that lately emerged.Finally the field experiments were presented.The experimental results show that it is possible to establish the seismic wave radar that can illuminate 105 km2 of continental areas under ground(deep to Moho).
引文
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[2]陈颙,周华伟,葛洪魁.华北地震台阵探测计划[J].大地测量与地球动力学,2005,25(4):1-5.
[3]陈颙,张尉,陈汉林,等.地震雷达[J].地球物理学进展,2006,21(1):1-5.
[4]陈颙,朱日祥.发展“地震雷达”的设想[M]//中国地球物理学会年刊.长春:吉林大学出版社,2005:10-11.
[5]Kulhanek.The structure and interpretation ofseismograms[M]//International Handbook ofEarthquake and Engineering Seismology.AcademicPress,2002:333-348.
[6]Jeffrey Park,Kent Anderson,Richard Aster,et al.Global seismograms network records the greatSumatra-Andaman Earthquake,EOS[J].Transactions,American Geophysical Union,2005,86(6):57,60-61.
[7]Ni S,Kanamori H,Helmberger D.Energy radiationfrom the Sumatra earthquake[J].Nature,2005,434:582.
[8]Alekseev A S,Chichinin I S,Korneev V A.Powerfullow-frequency vibrators for active seismology[J].BullSeismol Soc Am,2005,95:1-17.doi:10.1785/012003026.
[9]Baeten G,Ziolkowski A.The Vibroseis Source[M].Oxford:Elsevier,1990.
[10]Dekorp Research Group.Wide-angle vibroseis datafrom the western Rhenish Massif[J].Tectonophysics,1990,173:83-93.
[11]Yamaoka K,Kunitomo T,Miyakawa K,et al.A trialfor monitoring temporal variation of seismic velocityusing and ACROSS system[J].The Island Arc,2001,10:336-347.
[12]Ikuta R,Yamaoka K,Miyakawa K,et al.Continuousmonitoring of propagation velocity of seismic waveusing ACROSS[J].Geophys Res Lett,2002,29:doi:10.1029/2001GL013974.
[13]Dragoset W.Introduction to air guns and air-gunarrays[J].The Leading Edge,2000,19(8):892-987.
[14]Ronen S.Psi,pascal,bars,and decibels[J].TheLeading Edge,2002,21(1):60-62.
[15]Caldewll J,Dragoset W.A brief overview of seismicair-gun arrays[J].The Leading Edge,2000,19(8):898-902.
[16]陈颙,张先康,丘学林,等.陆地人工激发地震波的一种新方法[J].科学通报,2007,已投稿.
[17]周宝华,刘威北.气枪震源的发展与使用分析(上)[J].物探装备,1998,8(1):1-6.
[18]周宝华,刘威北.气枪震源的发展与使用分析(下)[J].物探装备,1998,8(2):1-5.
[19]罗桂纯,王宝善,葛洪魁,等.气枪震源在地球深部结构探测中的应用研究进展[J].地球物理学进展,2006,21:400-407.
[20]Maurice G B.Pulse Coding in Seismology[M].Boston:International Human Resources DevelopmentCorporation,1982.
[21]Okaya D,Henrys S,Stem T.Double-side onshore-offshore seismic i maging of a plate boundary:“super-gathers”across South Island,New Zealand[J].Tectonophysics,2002,255:247-263.
[22]Nazareth J J,Clayton R W.Crustal structure of theBorderland-Continent Transition Zone of southernCalifornia adjacent to Los Angeles[J].J Geophys Res,2003,108(B8).2404,doi:10.1029/2001JB000223.
[23]van Avendonk HJ A,Holbrook WS,Okaya D,et al.Continental crust under compression:a seismicrefraction study of South Island Geophysical TransectI,South Island,New Zealand[J].J Geophys Res,2004,109.B06302,doi:10.1029/2003JB002790.
[24]McIntosh K,Nakamura Y,Wang T K,et al.Crustal-scale seismic profiles across Tai wan and the westernPhilippine Sea[J].Tectonophysics,2005,401:23-54.
[25]Melhuish A,Holbrook WS,Davey F,et al.Crustaland upper mantle seismic structure of the AustralianPlate,South Island,New Zealand[J].Tectonophysics,2005,395:113-135.
[26]Cheng W B,Wang C,Shyu C T,et al.Crustalstructure of the convergent plate-boundary zone,eastern Tai wan,assessed by seismic tomography[J].Geological Society of America,2002,358(special):163-177.
[27]Qiu X,Ye S,Wu S,et al.Crustal structure across theXisha Trough,northwestern South China Sea[J].Tectonophysics,2001,341:179-193.
[28]葛洪魁,林建民,王宝善,等.编码震源提高地震探测能力的野外实验研究[J].地球物理学报,2006,49(3):864-870.
[29]Reasenberg P,Aki K.A precise,continuousmeasurement of seismic velocity for monitoring in situstress[J].J Geophys Res,1974,79:399-406.
[30]Schaff D P,Richards P G.Repeating seismic events inChina[J].Science,2004,303:1 176-1 178.
[31]Yamamura K,Sano O,Utada H,et al.Long-termobservation of in situ seismic velocity and attenuation[J].J Geophys Res,2003,108.2317,doi:10.1029/2002JB002005.
[32]Silver P G,Daley T M,Niu F et al.Active sourcemonitoring of crosswell seismic travel ti me for stressinduced changes[J].Bull Seismol Soc Am,2007,inpress.
[33]Karageorgi E,Clymer R,McEvilly T V.Seismologicalstudies at Parkfield.Ⅱ:search for temporal variationsin wave propagation using vibroseis[J].Bull SeismolAm,1992,82:1 388-1 415.
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