Abstract
Teleseismic waveforms recorded by ocean-bottom seismometers (OBSs) are affected by water reverberations. In this case, conventional methods, i.e., deconvolution of horizontal-component records by vertical-component records, fail to calculate receiver functions (RFs) correctly since the source wavelets cannot be approximated by the vertical-component records. We formulate a frequency filter termed the water-layer filter (WLF), which represents the impulse response of the water layer. With the inverse of the filter, we can remove the water reverberations from the vertical-component records. We demonstrate the effectiveness of the new method by conducting synthetic experiments.
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Akuhara, T. (2018). Inverse Water-Layer Filter Method. In: Fluid Distribution Along the Nankai-Trough Megathrust Fault off the Kii Peninsula. Springer Theses. Springer, Singapore. https://doi.org/10.1007/978-981-10-8174-3_2
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DOI: https://doi.org/10.1007/978-981-10-8174-3_2
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