As the tow depths are decreased, the sea surface ghost reflection notch filter effect is raised to higher frequencies, preserving a wider usable signal bandwidth. This wider bandwidth produces high resolution images, providing the bandwidth is preserved during the recording and processing stages. In suitable areas, a two to three times resolution improvement over conventional data is possible. The Seismic Acquisition Modeling system determines the acquisition response of different configurations. Input parameters include gun depth, streamer depth, water depth, sea floor reflectivity, source wavelet type and bandwidth.
All photographers understand the importance of resolution.
Geophysicists are learning this too. The source and streamer tow depths are the main acquisition parameters affecting seismic resolution. The source pulse, sampling interval, recording filters and other parameters must also be tailored to the desired acquisition bandwidth. The Acquisition Parameter Input Form. The filtering effect of the source depth, streamer depth and water layer reverberation can be modeled.