POSC Specifications
Version 3.0
Epicentre Standard Values
ref_processing_indicator

ref_processing_indicator

Standard Instance Values

identifier description source version status
      ref _version .identifier  
stack - bin node Creating a composite trace by "averaging" the samples on traces which have the same bin node. POSC epicentre 2.1 current
normal moveout correction Removal of the time delay caused by the source to receiver separation. POSC epicentre 2.1 current
migration - time Two dimensional time migration. POSC epicentre 2.1 current
migration - depth Two dimensional depth migration. POSC epicentre 2.1 current
migration - 3d time Three dimensional time migration. POSC epicentre 2.1 current
migration - 3d depth Three dimensional depth migration. POSC epicentre 2.1 current
migration - double 2d time Two dimensional time migration performed first in one direction then in the other. POSC epicentre 2.1 current
migration - double 2d depth Two dimensional depth migration performed first in one direction then in the other. POSC epicentre 2.1 current
dip moveout Dip moveout is a process that creates apparent common-reflection-point gathers by a convolution applied to adjacent common midpoint gathers, with the feature that the normal moveout for reflectors from a dipping bed no longer depends on the dip angle. (R. E. Sheriff, "Encyclopedic Dictionary of Exploration Geophysics", Third Edition) POSC epicentre 2.1 current
stack- vertical Combining of the records from several sources at nearly the same location without correcting for static or offset differences. (R. E. Sheriff, "Encyclopedic Dictionary of Exploration Geophysics", Third Edition) POSC epicentre 2.1 current
statics - residual field Application of a static correction which attempts to adjust for errors in the "statics - field" values. POSC epicentre 2.1 current
statics - field Corrections applied to seismic data to compensate for the effects of variations in elevation, weathering thickness, weathering velocity, or reference to a datum. (R. E. Sheriff, "Encyclopedic Dictionary of Exploration Geophysics", Third Edition) These may be based on uphole times, refraction information or other sources. POSC epicentre 2.1 current
filter - notch Application of a notch filter (e.g., 60 hz). POSC epicentre 2.1 current
filter - band pass Application of a band pass filter. POSC epicentre 2.1 current
muting Zeroing of data within mute windows. POSC epicentre 2.1 current

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