# Measuring and applying time-variant relative time shifts and amplitude corrections

# The data are supposed to be sorted so that the data from different vintages are present
# in the same ensemble. Different vintages are marked with header vintage=0,1,2, etc.,
# and differently-prefiltered components are differentiated by trace header 'kfilt'.


*call	wfcalib	1	measure	apply	select	vintage	0	kfilt

tvfilt	200		# length of time-variant filter for output 

tgate	above_reservoir	range	500.0	top	window	hanning	ok	# using Hanning (default) window
tshift	derive				dt1
scale	derive				dla1

tgate	caprock		zcross2	top		80	cos	ok	# using cosine window
tshift	derive				dt3
scale	derive				dla3

tgate	bottomrock	zcross2	bottom		80	cos	ok
tshift	derive				dt4
scale	derive				dla4

tgate	below_reservoir	range	bottom	1600.0	window		ok
tshift	derive				dt2
scale	derive				dla2