GfsInitOkada

From Gerris

GfsInitOkada initialises a field with the vertical displacement solution of Okada's rectangular fault model.

The syntax in parameter files is

[ GfsInit ] D {
  x = -171.8 y = -15.8
  strike = 7 dip = 72 rake = 116
  depth = 5e3
  length = 100e3 width = 50e3 U = 8.
}

where D is the name of the variable to be initialised (it will be created if it doesn't exist) and

x, y

coordinates of the fault's centroid,

strike, dip, rake

strike, dip and rake (slip) angles (degrees) of the fault,

depth

depth (metres) of the top edge of the rectangular fault,

length, width, U

length, width and displacement (metres) of the rectangular fault.

An alternative syntax is

[ GfsInit ] D {
  x = -171.8 y = -15.8
  strike = 7 dip = 72
  depth = 5e3
  length = 100e3 width = 50e3
  U1 = -3.506 U2 = 7.190 U3 = 0
}

which specifies the coordinates (in Okada's reference frame) of the displacement vector.