def test_SubdividedPlaneFault_make_dtopo(save=False):
r""""""
# get a unit source fault plane as starting point:
sift_slip = {'acsza1': 1.}
fault = dtopotools.SiftFault(sift_slip)
fault_plane = fault.subfaults[0]
# Mo = fault_plane.Mo()
# print "original Mo = ",Mo
fault2 = dtopotools.SubdividedPlaneFault(fault_plane, nstrike=5, ndip=3)
# print "new Mo = ",fault2.Mo()
#fault2.plot_subfaults(slip_color=True)
assert abs(fault2.Mw() - 6.83402) < 1e-4, \
"*** Mw is wrong: %g" % fault.Mw()
xlower = 162.
xupper = 168.
ylower = 53.
yupper = 59.
# dtopo parameters:
points_per_degree = 4 # 15 minute resolution
dx = 1. / points_per_degree
mx = int((xupper - xlower) / dx + 1)
xupper = xlower + (mx - 1) * dx
my = int((yupper - ylower) / dx + 1)
yupper = ylower + (my - 1) * dx
x = numpy.linspace(xlower, xupper, mx)
y = numpy.linspace(ylower, yupper, my)
times = [1.]
dtopo = fault2.create_dtopography(x, y, times)
test_data_path = os.path.join(testdir, "data",
"SubdividedFaultPlane_test_data.tt3")
if save:
dtopo.write(test_data_path, dtopo_type=3)
compare_data = dtopotools.DTopography(path=test_data_path)
compare_data.read(path=test_data_path, dtopo_type=3)
assert dtopo.dZ.shape == compare_data.dZ.shape, \
"dtopo.dZ.shape is %s, should be %s" \
% (dtopo.dZ.shape, compare_data.dZ.shape)
assert numpy.allclose(compare_data.dZ, dtopo.dZ)
def test_read_sift_make_dtopo(save=False):
r"""Test reading and making of a SIFT subfault speficied dtopo"""
sift_slip = {'acsza1': 2, 'acszb1': 3}
fault = dtopotools.SiftFault(sift_slip)
assert abs(fault.Mw() -
7.966666666667) < 1e-4, "*** Mw is wrong: %g" % fault.Mw()
xlower = 162.
xupper = 168.
ylower = 53.
yupper = 59.
# dtopo parameters:
points_per_degree = 4 # 15 minute resolution
dx = 1. / points_per_degree
mx = int((xupper - xlower) / dx + 1)
xupper = xlower + (mx - 1) * dx
my = int((yupper - ylower) / dx + 1)
yupper = ylower + (my - 1) * dx
x = numpy.linspace(xlower, xupper, mx)
y = numpy.linspace(ylower, yupper, my)
times = [1.]
dtopo = fault.create_dtopography(x, y, times)
test_data_path = os.path.join(testdir, "data", "sift_test_data.tt3")
if save:
dtopo.write(test_data_path, dtopo_type=3)
compare_data = dtopotools.DTopography(path=test_data_path)
compare_data.read(path=test_data_path, dtopo_type=3)
assert dtopo.dZ.shape == compare_data.dZ.shape, \
"dtopo.dZ.shape is %s, should be %s" \
% (dtopo.dZ.shape, compare_data.dZ.shape)
assert numpy.allclose(compare_data.dZ, dtopo.dZ)
def test_subdivided_plane_fault(verbose=False, plot=False):
r"""Test SubdividedPlaneFault class"""
# get a unit source fault plane as starting point:
sift_slip = {'acsza1': 1.}
fault = dtopotools.SiftFault(sift_slip)
fault_plane = fault.subfaults[0]
Mo = fault_plane.Mo()
if verbose:
print("original Mo = ", Mo)
fault2 = dtopotools.SubdividedPlaneFault(fault_plane, nstrike=5, ndip=3)
if verbose:
print("new Mo = ", fault2.Mo())
if plot:
import matplotlib.pyplot as plt
fault2.plot_subfaults(slip_color=True)
plt.show()
slip_function = lambda xi, eta: xi * (1 - xi) * eta
fault2 = dtopotools.SubdividedPlaneFault(fault_plane,
nstrike=5,
ndip=3,
slip_function=slip_function,
Mo=Mo)
if verbose:
print("new Mo = ", fault2.Mo())
if plot:
fault2.plot_subfaults(slip_color=True)
plt.show()
fault2.subdivide(nstrike=20, ndip=10, slip_function=slip_function, Mo=Mo)
if verbose:
print("with finer resolution, Mo = ", fault2.Mo())
if plot:
fault2.plot_subfaults(slip_color=True)
plt.show()
import matplotlib.pyplot as plt
from clawpack.geoclaw import dtopotools
slip = {}
slip['kiszb24'] = 4.66
slip['kiszb25'] = 12.23
slip['kiszb26'] = 21.27
slip['kisza26'] = 26.31
slip['kiszb27'] = 4.98
slip['kisza27'] = 22.75
f = dtopotools.SiftFault(slip)
# create x-y arrays with 1' resolution and 1 degree buffer around bounding box
x, y = f.create_dtopo_xy(dx=1 / 60., buffer_size=1)
dtopo = f.create_dtopography(x, y, times=[0, 1.], verbose=True)
if 0:
fname = 'tohoku_sift.tt3'
dtopo.write(fname, dtopo_type=3)
print "Created ", fname
# shift longitude to East:
dtopo.x = dtopo.x - 360.
dtopo.X = dtopo.X - 360.
if 1:
fname = 'tohoku_sift_E.tt3'
dtopo.write(fname, dtopo_type=3)
print "Created ", fname
