def test_etopo1_topo(make_plot=False, save=False):
try:
import netCDF4
except:
raise nose.SkipTest("netCDF4 not installed, skipping test")
topo1 = topotools.read_netcdf('etopo1', extent=extent, verbose=True)
topo10 = topotools.read_netcdf('etopo1', extent=extent,
coarsen=10, verbose=True)
testdata_path = os.path.join(os.path.dirname(__file__), 'data', 'etopo1_10min.asc')
if save:
topo10.write(testdata_path, topo_type=3, Z_format='%.0f')
print('Created %s' % testdata_path)
topo10input = topotools.Topography()
topo10input.read(testdata_path, topo_type=3)
assert numpy.allclose(topo10.Z, topo10input.Z), \
"topo10.Z does not agree with archived data"
if make_plot:
import matplotlib.pyplot as plt
plt.figure(figsize=(12,5))
ax1 = plt.subplot(1,2,1)
topo1.plot(axes=ax1)
plt.title('1 minute etopo1 data')
ax10 = plt.subplot(1,2,2)
topo10.plot(axes=ax10)
plt.title('10 minute etopo1 data')
pname = 'etopo1_test_plot.png'
plt.savefig(pname)
print('Created %s' % pname)
def test_etopo1_xarray():
try:
import xarray
except:
raise nose.SkipTest("xarray not installed, skipping test")
topo10,topo10_xarray = topotools.read_netcdf('etopo1', extent=extent,
return_xarray=True,
coarsen=10, verbose=True)
testdata_path = os.path.join(testdir, 'data', 'etopo1_10min.asc')
topo10input = topotools.Topography()
topo10input.read(testdata_path, topo_type=3)
assert numpy.allclose(topo10_xarray['z'], topo10input.Z), \
"topo10_xarray['z'] does not agree with archived data"
def test_etopo1_xarray():
try:
import xarray
except ImportError:
raise nose.SkipTest("xarray not installed, skipping test")
try:
topo10, topo10_xarray = topotools.read_netcdf('etopo1',
extent=extent,
return_xarray=True,
coarsen=10,
verbose=True)
except (OSError, RuntimeError):
warnings.warn('Could not read etopo1 data, check if thredds server up')
raise nose.SkipTest("Reading etopo1 failed, skipping test")
testdata_path = os.path.join(testdir, 'data', 'etopo1_10min.asc')
topo10input = topotools.Topography()
topo10input.read(testdata_path, topo_type=3)
assert numpy.allclose(topo10_xarray['z'], topo10input.Z), \
"topo10_xarray['z'] does not agree with archived data"
from __future__ import print_function
from pylab import *
from clawpack.geoclaw import topotools
# read in slice of etopo1 topography data:
etopo1_url = 'https://www.ngdc.noaa.gov/thredds/dodsC/global/ETOPO1_Ice_g_gmt4.nc'
extent = [-128, -124, 44, 44.5]
print('Attempting to read etopo1 data from\n %s' % etopo1_url)
etopo = topotools.read_netcdf(path=etopo1_url, extent=extent)
#topodir = '/Users/rjl/topo/westport_topo/'
#etopo.read(topodir+'etopo1_-132_-122_42_50_1min.asc',3)
# select a single slice at the desired latitude:
yslice = 44.2
je = find(etopo.y < yslice).max()
print('Extracting slice at latitude %.6f' % etopo.y[je])
xe = etopo.x
Be = etopo.Z[je, :]
if 0:
je_shore = find(Be > 0).min()
xe_shore = xe[je_shore]
xe_to_shore = xe[:je_shore]
Be_to_shore = Be[:je_shore]
d = vstack((xe_to_shore, Be_to_shore)).T
from clawpack.geoclaw import dtopotools, topotools
import matplotlib as mpl
import matplotlib.pyplot as plt
import numpy as np
from clawpack.visclaw.plottools import plotbox
import os
from clawpack.visclaw import animation_tools
from IPython.display import HTML
# ## Load etopo1 topo and extract coastline for plotting
# In[ ]:
extent = [-130, -122, 39, 52]
topo = topotools.read_netcdf('etopo1', extent=extent)
# generate coast_xy from etopo1 data:
coast_xy = topo.make_shoreline_xy()
# ### Set up CSZ geometry
# In[ ]:
fault_geometry_file = './cascadia30.mshout'
print('Reading fault geometry from %s' % fault_geometry_file)
print('\nHeader:\n')
print(open(fault_geometry_file).readline())
# In[ ]:
# Fetch earthquake source model (dtopo file):
url_geoclaw = 'http://depts.washington.edu/clawpack/geoclaw/'
url = os.path.join(url_geoclaw, 'dtopo/tohoku/2011Tohoku_deformation.asc')
get_remote_file(url, output_dir='.', verbose=True)
# Read etopo1 topography data from NCEI thredds server:
# Portion east of -180 (date line):
etopo1_url = 'https://www.ngdc.noaa.gov/thredds/dodsC/global/ETOPO1_Ice_g_gmt4.nc'
extent = [-180, -110, 20, 60]
print('Attempting to read etopo1 data from\n %s' % etopo1_url)
etopo = topotools.read_netcdf(path=etopo1_url,
extent=extent,
coarsen=1,
verbose=True)
fname = 'etopo1_-180_-110_20_60_1min.asc'
etopo.write(fname, topo_type=3)
print('Created ', fname)
# Portion west of 180 (date line):
extent = [120, 180, 20, 60]
print('Attempting to read etopo1 data from\n %s' % etopo1_url)
etopo = topotools.read_netcdf(path=etopo1_url,
extent=extent,
coarsen=1,
verbose=True)
# shift longitude to agree with coordinates of first topo file (longitude West):
