We have been using obspy's differentiate method, which uses central differences. Differentiation is done in the frequency domain by the NGA projects and this is a source of inconsistency in the results. Central differences diminishes the high frequency content relative to the frequency domain differentiation. My plan is to make this a config option and default to frequency domain differentiation.
We have been using obspy's differentiate method, which uses central differences. Differentiation is done in the frequency domain by the NGA projects and this is a source of inconsistency in the results. Central differences diminishes the high frequency content relative to the frequency domain differentiation. My plan is to make this a config option and default to frequency domain differentiation.