def topo(x, y):
"""
x = longitude, y = latitude in degrees
"""
import numpy as np
x0 = 0.0
y0 = 40.0
d = gcdist(x0, y0, x, y, Rearth)
z = shelf1(d)
d = gcdist(xisland, yisland, x, y, Rearth)
z = z + island1(d)
z = where(z > 200, 200, z) # cut off topo at 200 m above sea level
return z
def qinit(x, y):
"""
Gaussian hump:
"""
from numpy import where
x0 = 0.0
y0 = 40.0
d = gcdist(x0, y0, x, y, Rearth)
ze = -d**2 / 2.e9
z = where(ze > -100., 3.e0 * exp(ze), 0.)
return z