GPS-determination of along-strike variation in Cascadia margin kinematics: mplications for relative plate motion, subduction zone coupling, and perman

For this
study, daily and seasonal irregularities in the global
reference frame were minimized using a regional stabilization
based on subtracting average common-mode
position variations at six sites (ALBH, CABL, DRAO,
GOBS, PABH, and QUIN, Plate 1). This technique
[Bock et al., 1997; Wdowinski et al., 1997] is particularly
useful in cases where the length of observations i s
short, and hence the relative effect of uncorrected seasonal
noise is potentially large.