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LIAO Guang-hong, ZHU Xiao-hua, YANG Cheng-hao, XU Xiao-hua. Numerical simulation study on inversion of two dimensional flow field using acoustic ray travel time[J]. Haiyang Xuebao, 2009, 31(2): 8-16.
Citation: LIAO Guang-hong, ZHU Xiao-hua, YANG Cheng-hao, XU Xiao-hua. Numerical simulation study on inversion of two dimensional flow field using acoustic ray travel time[J]. Haiyang Xuebao, 2009, 31(2): 8-16.

Numerical simulation study on inversion of two dimensional flow field using acoustic ray travel time

  • Received Date: 2008-08-15
  • Rev Recd Date: 2008-12-13
  • On the basis of the stream function field computed using diagnostic model in the South China Sea during the summer 1998, in the area east to Vietnam where the dipole often occurs, the acoustic tomography observation stations were deployed.By using the acoustic ray traveltime information, the inversion problem of two dimensional flow field was studied, and the affection for inversion results from random errors also been discussed.The results displays that the stream function can be restructured by inversion method using only 19 acoustic tomography observation stations in the 833 km×833 km area.Spatial resolution is 63.7 km, and the aco ustical tomography system can monitor the area with eddy-resolving scales.The traditional observation method, such as Current Measurement (CM) or Acoustic Doppler Current Profiler (ADCP) can not do this.The observation technology and method can be used to remote monitor the flow field structure in real time, and obtain the real time data for study of coastal environmental monitor and study.
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