def test_sp_discharges_new():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_discharge_new.txt')
inputs = ModelParameterDictionary(input_str)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([
5., 5., 0., 5., 5., 5., 2., 1., 2., 5., 5., 3., 2., 3., 5., 5., 4., 4.,
4., 5., 5., 5., 5., 5., 5.
])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
sp.run_one_step(dt)
z_tg = np.array([
5.00000000e+00, 5.00000000e+00, 0.00000000e+00, 5.00000000e+00,
5.00000000e+00, 5.00000000e+00, 1.29289322e+00, 1.00000000e-06,
1.29289322e+00, 5.00000000e+00, 5.00000000e+00, 2.29289322e+00,
1.00000000e+00, 2.29289322e+00, 5.00000000e+00, 5.00000000e+00,
3.29289322e+00, 3.00000000e+00, 3.29289322e+00, 5.00000000e+00,
5.00000000e+00, 5.00000000e+00, 5.00000000e+00, 5.00000000e+00,
5.00000000e+00
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_storms():
input_file_string = os.path.join(_THIS_DIR, 'drive_sp_params_storms.txt')
inputs = ModelParameterDictionary(input_file_string)
nrows = inputs.read_int('nrows')
ncols = inputs.read_int('ncols')
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
time_to_run = inputs.read_float('run_time')
uplift = inputs.read_float('uplift_rate')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node')
mg['node']['topographic__elevation'] = z + np.random.rand(len(z)) / 1000.
mg.add_zeros('water__unit_flux_in', at='node')
precip = PrecipitationDistribution(input_file=input_file_string)
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
for (interval_duration, rainfall_rate) in \
precip.yield_storm_interstorm_duration_intensity():
if rainfall_rate != 0.:
mg.at_node['water__unit_flux_in'].fill(rainfall_rate)
mg = fr.route_flow()
sp.run_one_step(dt)
mg.at_node['topographic__elevation'][
mg.core_nodes] += uplift * interval_duration
def test_sp_discharges_new():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_discharge_new.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([5., 5., 0., 5., 5.,
5., 2., 1., 2., 5.,
5., 3., 2., 3., 5.,
5., 4., 4., 4., 5.,
5., 5., 5., 5., 5.])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
sp.run_one_step(dt)
z_tg = np.array([5. , 5. , 0. , 5. ,
5. , 5. , 1.47759225, 0.43050087,
1.47759225, 5. , 5. , 2.32883687,
1.21525044, 2.32883687, 5. , 5. ,
3.27261262, 3.07175015, 3.27261262, 5. ,
5. , 5. , 5. , 5. ,
5. ])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_discharges_new():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_discharge_new.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([
5., 5., 0., 5., 5., 5., 2., 1., 2., 5., 5., 3., 2., 3., 5., 5., 4., 4.,
4., 5., 5., 5., 5., 5., 5.
])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
sp.run_one_step(dt)
z_tg = np.array([
5., 5., 0., 5., 5., 5., 1.47759225, 0.43050087, 1.47759225, 5., 5.,
2.32883687, 1.21525044, 2.32883687, 5., 5., 3.27261262, 3.07175015,
3.27261262, 5., 5., 5., 5., 5., 5.
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_storms():
input_file_string = os.path.join(_THIS_DIR, 'drive_sp_params_storms.txt')
inputs = ModelParameterDictionary(input_file_string)
nrows = inputs.read_int('nrows')
ncols = inputs.read_int('ncols')
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
time_to_run = inputs.read_float('run_time')
uplift = inputs.read_float('uplift_rate')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node')
mg['node']['topographic__elevation'] = z + np.random.rand(len(z)) / 1000.
mg.add_zeros('water__unit_flux_in', at='node')
precip = PrecipitationDistribution(input_file=input_file_string)
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
for (interval_duration, rainfall_rate) in \
precip.yield_storm_interstorm_duration_intensity():
if rainfall_rate != 0.:
mg.at_node['water__unit_flux_in'].fill(rainfall_rate)
mg = fr.route_flow()
sp.run_one_step(dt)
mg.at_node['topographic__elevation'][
mg.core_nodes] += uplift * interval_duration
def test_sp_voronoi():
nnodes = 100
np.random.seed(0)
x = np.random.rand(nnodes)
np.random.seed(1)
y = np.random.rand(nnodes)
mg = VoronoiDelaunayGrid(x, y)
np.random.seed(2)
z = mg.add_field('node', 'topographic__elevation',
np.random.rand(nnodes) / 10000., copy=False)
fr = FlowRouter(mg)
spe = StreamPowerEroder(mg, os.path.join(_THIS_DIR,
'drive_sp_params_voronoi.txt'))
for i in range(10):
z[mg.core_nodes] += 0.01
fr.route_flow()
spe.erode(mg, 1.)
z_tg = np.array([4.35994902e-05, 2.59262318e-06, 5.49662478e-05,
6.56738615e-03, 4.20367802e-05, 1.21371424e-02,
2.16596169e-02, 4.73320898e-02, 6.00389761e-02,
5.22007356e-02, 5.37507115e-02, 5.95794752e-02,
5.29862904e-02, 6.76465914e-02, 7.31720024e-02,
6.18730861e-02, 8.53975293e-05, 5.32189275e-02,
7.34302556e-02, 8.07385044e-02, 5.05246090e-05,
4.08940657e-02, 7.39971005e-02, 3.31915602e-02,
6.72650419e-02, 5.96745309e-05, 4.72752445e-02,
3.60359567e-02, 7.59432065e-02, 7.24461985e-02,
7.80305760e-02, 4.93866869e-02, 8.69642467e-02,
7.21627626e-02, 8.96368291e-02, 4.65142080e-02,
6.07720217e-02, 8.83372939e-02, 2.35887558e-02,
7.97616193e-02, 8.35615355e-02, 4.61809032e-02,
6.34634214e-02, 9.25711770e-02, 4.11717225e-03,
7.24493623e-02, 7.97908053e-02, 9.10375623e-02,
9.13155023e-02, 7.10567915e-02, 7.35271752e-02,
6.13091341e-02, 9.45498463e-02, 8.48532386e-02,
8.82702021e-02, 7.14969941e-02, 2.22640943e-02,
8.53311932e-02, 7.49161159e-02, 3.48837223e-02,
9.30132692e-02, 6.01817121e-05, 3.87455443e-02,
8.44673586e-02, 9.35213577e-02, 6.76075824e-02,
1.58614508e-02, 8.51346837e-02, 8.83645680e-02,
8.69944117e-02, 5.04000439e-05, 5.02319084e-02,
8.63882765e-02, 5.00991880e-02, 7.65156630e-02,
5.07591983e-02, 6.54909962e-02, 6.91505342e-02,
7.33358371e-02, 5.30109890e-02, 2.99074601e-02,
2.55509418e-06, 8.21523907e-02, 8.09368483e-02,
4.35073025e-02, 3.04096109e-02, 3.26298627e-02,
4.92259177e-02, 5.48690358e-02, 6.44732130e-02,
6.28133567e-02, 4.17977098e-06, 5.37149677e-02,
4.32828136e-02, 1.30559903e-02, 2.62405261e-02,
2.86079272e-02, 6.61481327e-05, 1.70477133e-05,
8.81652236e-05])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_voronoi():
nnodes = 100
np.random.seed(0)
x = np.random.rand(nnodes)
np.random.seed(1)
y = np.random.rand(nnodes)
mg = VoronoiDelaunayGrid(x, y)
np.random.seed(2)
z = mg.add_field('node', 'topographic__elevation',
np.random.rand(nnodes) / 10000., copy=False)
fr = FlowRouter(mg)
spe = StreamPowerEroder(mg, os.path.join(_THIS_DIR,
'drive_sp_params_voronoi.txt'))
for i in range(10):
z[mg.core_nodes] += 0.01
fr.route_flow()
spe.erode(mg, 1.)
z_tg = np.array([4.35994902e-05, 2.59262318e-06, 5.49662478e-05,
4.36094902e-05, 4.20367802e-05, 2.16664196e-03,
1.23484520e-02, 4.07654109e-02, 5.69974645e-02,
4.71086393e-02, 5.55056467e-02, 5.53655860e-02,
4.87984556e-02, 6.62132007e-02, 7.33132951e-02,
6.10003971e-02, 8.53975293e-05, 4.90709812e-02,
7.84728490e-02, 8.26091298e-02, 5.05246090e-05,
3.69289510e-02, 7.56743264e-02, 2.52850671e-02,
6.80517443e-02, 5.96745309e-05, 3.86335644e-02,
4.12526935e-02, 7.78476139e-02, 7.18165632e-02,
7.62359762e-02, 6.65702961e-02, 9.04684278e-02,
7.37203974e-02, 9.16862054e-02, 4.11168411e-02,
4.36498947e-02, 9.04430763e-02, 1.42123575e-02,
8.02734138e-02, 8.34895711e-02, 4.51564589e-02,
6.47124169e-02, 9.52317640e-02, 6.01917122e-05,
7.11667309e-02, 8.00463179e-02, 9.40668605e-02,
9.33247720e-02, 7.34011920e-02, 7.30924467e-02,
6.21387674e-02, 9.66278589e-02, 8.64266637e-02,
9.06100497e-02, 7.19991365e-02, 1.07162442e-02,
8.68685360e-02, 7.40515066e-02, 2.73264483e-02,
9.55406046e-02, 6.01817121e-05, 3.28663723e-02,
8.60706344e-02, 9.56285286e-02, 4.24741937e-02,
5.64139004e-03, 8.72373392e-02, 9.04304841e-02,
8.83708170e-02, 5.04000439e-05, 6.47845229e-02,
8.77304766e-02, 4.40894724e-02, 8.08029139e-02,
4.52732792e-02, 6.35806712e-02, 6.71004941e-02,
7.32682350e-02, 4.88067087e-02, 2.14920377e-02,
2.55509418e-06, 8.25346959e-02, 8.12610977e-02,
3.75778123e-02, 2.20818912e-02, 2.45940192e-02,
4.43365163e-02, 4.93255141e-02, 6.23517572e-02,
5.99594648e-02, 4.17977098e-06, 4.96450779e-02,
3.72952724e-02, 2.26332108e-03, 1.69925430e-02,
1.99835635e-02, 6.61481327e-05, 1.70477133e-05,
8.81652236e-05] )
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_new():
"""
Tests new style component instantiation and run.
"""
input_str = os.path.join(_THIS_DIR, 'drive_sp_params.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = inputs.read_int('nrows')
ncols = inputs.read_int('ncols')
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
time_to_run = inputs.read_float('run_time')
uplift = inputs.read_float('uplift_rate')
init_elev = inputs.read_float('init_elev')
mg = RasterModelGrid((nrows, ncols), spacing=(dx, dx))
mg.set_closed_boundaries_at_grid_edges(False, False, True, True)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
numpy.random.seed(0)
mg['node']['topographic__elevation'] = z + \
numpy.random.rand(len(z)) / 1000.
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
elapsed_time = 0.
while elapsed_time < time_to_run:
if elapsed_time + dt > time_to_run:
dt = time_to_run - elapsed_time
fr.route_flow()
sp.run_one_step(dt)
mg.at_node['topographic__elevation'][mg.core_nodes] += uplift * dt
elapsed_time += dt
z_trg = numpy.array([5.48813504e-04, 7.15189366e-04, 6.02763376e-04,
5.44883183e-04, 4.23654799e-04, 6.45894113e-04,
1.02783376e-02, 9.66667235e-03, 6.15060782e-03,
3.83441519e-04, 7.91725038e-04, 1.00905776e-02,
8.98955843e-03, 5.32836181e-03, 7.10360582e-05,
8.71292997e-05, 9.96377080e-03, 9.63738797e-03,
7.31213677e-03, 8.70012148e-04, 9.78618342e-04,
1.02124693e-02, 8.78386002e-03, 4.88161060e-03,
1.18274426e-04, 6.39921021e-04, 1.00377580e-02,
9.54340293e-03, 6.05173814e-03, 4.14661940e-04,
2.64555612e-04, 1.02160196e-02, 8.61600088e-03,
4.77005225e-03, 1.87898004e-05, 6.17635497e-04,
9.30445558e-03, 9.48713993e-03, 7.25689742e-03,
6.81820299e-04, 3.59507901e-04, 5.79161813e-03,
6.83777542e-03, 6.18063842e-03, 6.66766715e-04,
6.70637870e-04, 2.10382561e-04, 1.28926298e-04,
3.15428351e-04, 3.63710771e-04])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_trg)
def test_sp_voronoi():
nnodes = 100
np.random.seed(0)
x = np.random.rand(nnodes)
np.random.seed(1)
y = np.random.rand(nnodes)
mg = VoronoiDelaunayGrid(x, y)
np.random.seed(2)
z = mg.add_field('node',
'topographic__elevation',
np.random.rand(nnodes) / 10000.,
copy=False)
fr = FlowRouter(mg)
spe = StreamPowerEroder(
mg, os.path.join(_THIS_DIR, 'drive_sp_params_voronoi.txt'))
for i in range(10):
z[mg.core_nodes] += 0.01
fr.route_flow()
spe.erode(mg, 1.)
z_tg = np.array([
4.35994902e-05, 2.59262318e-06, 5.49662478e-05, 4.36094902e-05,
4.20367802e-05, 2.16664196e-03, 1.23484520e-02, 4.07654109e-02,
5.69974645e-02, 4.71086393e-02, 5.55056467e-02, 5.53655860e-02,
4.87984556e-02, 6.62132007e-02, 7.33132951e-02, 6.10003971e-02,
8.53975293e-05, 4.90709812e-02, 7.84728490e-02, 8.26091298e-02,
5.05246090e-05, 3.69289510e-02, 7.56743264e-02, 2.52850671e-02,
6.80517443e-02, 5.96745309e-05, 3.86335644e-02, 4.12526935e-02,
7.78476139e-02, 7.18165632e-02, 7.62359762e-02, 6.65702961e-02,
9.04684278e-02, 7.37203974e-02, 9.16862054e-02, 4.11168411e-02,
4.36498947e-02, 9.04430763e-02, 1.42123575e-02, 8.02734138e-02,
8.34895711e-02, 4.51564589e-02, 6.47124169e-02, 9.52317640e-02,
6.01917122e-05, 7.11667309e-02, 8.00463179e-02, 9.40668605e-02,
9.33247720e-02, 7.34011920e-02, 7.30924467e-02, 6.21387674e-02,
9.66278589e-02, 8.64266637e-02, 9.06100497e-02, 7.19991365e-02,
1.07162442e-02, 8.68685360e-02, 7.40515066e-02, 2.73264483e-02,
9.55406046e-02, 6.01817121e-05, 3.28663723e-02, 8.60706344e-02,
9.56285286e-02, 4.24741937e-02, 5.64139004e-03, 8.72373392e-02,
9.04304841e-02, 8.83708170e-02, 5.04000439e-05, 6.47845229e-02,
8.77304766e-02, 4.40894724e-02, 8.08029139e-02, 4.52732792e-02,
6.35806712e-02, 6.71004941e-02, 7.32682350e-02, 4.88067087e-02,
2.14920377e-02, 2.55509418e-06, 8.25346959e-02, 8.12610977e-02,
3.75778123e-02, 2.20818912e-02, 2.45940192e-02, 4.43365163e-02,
4.93255141e-02, 6.23517572e-02, 5.99594648e-02, 4.17977098e-06,
4.96450779e-02, 3.72952724e-02, 2.26332108e-03, 1.69925430e-02,
1.99835635e-02, 6.61481327e-05, 1.70477133e-05, 8.81652236e-05
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_new():
"""
Tests new style component instantiation and run.
"""
input_str = os.path.join(_THIS_DIR, 'drive_sp_params.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = inputs.read_int('nrows')
ncols = inputs.read_int('ncols')
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
time_to_run = inputs.read_float('run_time')
uplift = inputs.read_float('uplift_rate')
init_elev = inputs.read_float('init_elev')
mg = RasterModelGrid((nrows, ncols), spacing=(dx, dx))
mg.set_closed_boundaries_at_grid_edges(False, False, True, True)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
numpy.random.seed(0)
mg['node']['topographic__elevation'] = z + \
numpy.random.rand(len(z)) / 1000.
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
elapsed_time = 0.
while elapsed_time < time_to_run:
if elapsed_time + dt > time_to_run:
dt = time_to_run - elapsed_time
fr.route_flow()
sp.run_one_step(dt)
mg.at_node['topographic__elevation'][mg.core_nodes] += uplift * dt
elapsed_time += dt
z_trg = numpy.array([5.48813504e-04, 7.15189366e-04, 6.02763376e-04,
5.44883183e-04, 4.23654799e-04, 6.45894113e-04,
1.01830760e-02, 9.58036770e-03, 6.55865452e-03,
3.83441519e-04, 7.91725038e-04, 1.00142749e-02,
8.80798884e-03, 5.78387585e-03, 7.10360582e-05,
8.71292997e-05, 9.81911417e-03, 9.52243406e-03,
7.55093226e-03, 8.70012148e-04, 9.78618342e-04,
1.00629755e-02, 8.49253798e-03, 5.33216680e-03,
1.18274426e-04, 6.39921021e-04, 9.88956320e-03,
9.47119567e-03, 6.43790696e-03, 4.14661940e-04,
2.64555612e-04, 1.00450743e-02, 8.37262908e-03,
5.21540904e-03, 1.87898004e-05, 6.17635497e-04,
9.21286940e-03, 9.34022513e-03, 7.51114450e-03,
6.81820299e-04, 3.59507901e-04, 6.19166921e-03,
7.10456176e-03, 6.62585507e-03, 6.66766715e-04,
6.70637870e-04, 2.10382561e-04, 1.28926298e-04,
3.15428351e-04, 3.63710771e-04])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_trg)
def test_sp_new():
"""
Tests new style component instantiation and run.
"""
input_str = os.path.join(_THIS_DIR, 'drive_sp_params.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = inputs.read_int('nrows')
ncols = inputs.read_int('ncols')
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
time_to_run = inputs.read_float('run_time')
uplift = inputs.read_float('uplift_rate')
init_elev = inputs.read_float('init_elev')
mg = RasterModelGrid((nrows, ncols), spacing=(dx, dx))
mg.set_closed_boundaries_at_grid_edges(False, False, True, True)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
numpy.random.seed(0)
mg['node']['topographic__elevation'] = z + \
numpy.random.rand(len(z)) / 1000.
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
elapsed_time = 0.
while elapsed_time < time_to_run:
if elapsed_time + dt > time_to_run:
dt = time_to_run - elapsed_time
fr.route_flow()
sp.run_one_step(dt)
mg.at_node['topographic__elevation'][mg.core_nodes] += uplift * dt
elapsed_time += dt
z_trg = numpy.array([
5.48813504e-04, 7.15189366e-04, 6.02763376e-04, 5.44883183e-04,
4.23654799e-04, 6.45894113e-04, 1.01830760e-02, 9.58036770e-03,
6.55865452e-03, 3.83441519e-04, 7.91725038e-04, 1.00142749e-02,
8.80798884e-03, 5.78387585e-03, 7.10360582e-05, 8.71292997e-05,
9.81911417e-03, 9.52243406e-03, 7.55093226e-03, 8.70012148e-04,
9.78618342e-04, 1.00629755e-02, 8.49253798e-03, 5.33216680e-03,
1.18274426e-04, 6.39921021e-04, 9.88956320e-03, 9.47119567e-03,
6.43790696e-03, 4.14661940e-04, 2.64555612e-04, 1.00450743e-02,
8.37262908e-03, 5.21540904e-03, 1.87898004e-05, 6.17635497e-04,
9.21286940e-03, 9.34022513e-03, 7.51114450e-03, 6.81820299e-04,
3.59507901e-04, 6.19166921e-03, 7.10456176e-03, 6.62585507e-03,
6.66766715e-04, 6.70637870e-04, 2.10382561e-04, 1.28926298e-04,
3.15428351e-04, 3.63710771e-04
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_trg)
def test_sp_new():
"""
Tests new style component instantiation and run.
"""
input_str = os.path.join(_THIS_DIR, 'drive_sp_params.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = inputs.read_int('nrows')
ncols = inputs.read_int('ncols')
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
time_to_run = inputs.read_float('run_time')
uplift = inputs.read_float('uplift_rate')
init_elev = inputs.read_float('init_elev')
mg = RasterModelGrid((nrows, ncols), spacing=(dx, dx))
mg.set_closed_boundaries_at_grid_edges(False, False, True, True)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
numpy.random.seed(0)
mg['node']['topographic__elevation'] = z + \
numpy.random.rand(len(z)) / 1000.
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
elapsed_time = 0.
while elapsed_time < time_to_run:
if elapsed_time + dt > time_to_run:
dt = time_to_run - elapsed_time
fr.route_flow()
sp.run_one_step(dt)
mg.at_node['topographic__elevation'][mg.core_nodes] += uplift * dt
elapsed_time += dt
z_trg = numpy.array([
5.48813504e-04, 7.15189366e-04, 6.02763376e-04, 5.44883183e-04,
4.23654799e-04, 6.45894113e-04, 1.02783376e-02, 9.66667235e-03,
6.15060782e-03, 3.83441519e-04, 7.91725038e-04, 1.00905776e-02,
8.98955843e-03, 5.32836181e-03, 7.10360582e-05, 8.71292997e-05,
9.96377080e-03, 9.63738797e-03, 7.31213677e-03, 8.70012148e-04,
9.78618342e-04, 1.02124693e-02, 8.78386002e-03, 4.88161060e-03,
1.18274426e-04, 6.39921021e-04, 1.00377580e-02, 9.54340293e-03,
6.05173814e-03, 4.14661940e-04, 2.64555612e-04, 1.02160196e-02,
8.61600088e-03, 4.77005225e-03, 1.87898004e-05, 6.17635497e-04,
9.30445558e-03, 9.48713993e-03, 7.25689742e-03, 6.81820299e-04,
3.59507901e-04, 5.79161813e-03, 6.83777542e-03, 6.18063842e-03,
6.66766715e-04, 6.70637870e-04, 2.10382561e-04, 1.28926298e-04,
3.15428351e-04, 3.63710771e-04
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_trg)
def test_sp_widths():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_widths.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
widths = np.ones(mg.number_of_nodes, dtype=float)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([5., 5., 0., 5., 5.,
5., 2., 1., 2., 5.,
5., 3., 2., 3., 5.,
5., 4., 4., 4., 5.,
5., 5., 5., 5., 5.])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, use_W=widths, **inputs)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
sqrt_A = mg.at_node['drainage_area']**0.5
widths[mg.core_nodes] = sqrt_A[mg.core_nodes]/sqrt_A[
mg.core_nodes].mean()
# so widths has mean=1.
# note the issue with drainage_area not defined at perimeter => nans
# if not careful...
sp.run_one_step(dt)
z_tg = np.array([ 5. , 5. , 0. , 5. ,
5. , 5. , 1.37222369, 0.36876358,
1.37222369, 5. , 5. , 2.17408606,
1.07986038, 2.17408606, 5. , 5. ,
3.08340277, 2.85288049, 3.08340277, 5. ,
5. , 5. , 5. , 5. ,
5. ])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_discharges_old():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_discharge.txt')
inputs = ModelParameterDictionary(input_str)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([
5., 5., 0., 5., 5., 5., 2., 1., 2., 5., 5., 3., 2., 3., 5., 5., 4., 4.,
4., 5., 5., 5., 5., 5., 5.
])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, input_str)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
my_Q = mg.at_node['water__volume_flux'] * 1.
sp.erode(mg,
dt,
node_drainage_areas='drainage_area',
slopes_at_nodes='topographic__steepest_slope',
Q_if_used=my_Q)
z_tg = np.array([
5.00000000e+00, 5.00000000e+00, 0.00000000e+00, 5.00000000e+00,
5.00000000e+00, 5.00000000e+00, 1.29289322e+00, 1.00000000e-06,
1.29289322e+00, 5.00000000e+00, 5.00000000e+00, 2.29289322e+00,
1.00000000e+00, 2.29289322e+00, 5.00000000e+00, 5.00000000e+00,
3.29289322e+00, 3.00000000e+00, 3.29289322e+00, 5.00000000e+00,
5.00000000e+00, 5.00000000e+00, 5.00000000e+00, 5.00000000e+00,
5.00000000e+00
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_discharges():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_discharge.txt')
inputs = ModelParameterDictionary(input_str)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([5., 5., 0., 5., 5.,
5., 2., 1., 2., 5.,
5., 3., 2., 3., 5.,
5., 4., 4., 4., 5.,
5., 5., 5., 5., 5.])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, input_str)
# perform the loop (once!)
for i in range(1):
fr.route_flow(method='D8')
my_Q = mg.at_node['water__volume_flux'] * 1.
sp.erode(mg, dt, node_drainage_areas='drainage_area',
slopes_at_nodes='topographic__steepest_slope',
Q_if_used=my_Q)
z_tg = np.array([5.00000000e+00, 5.00000000e+00, 0.00000000e+00,
5.00000000e+00, 5.00000000e+00, 5.00000000e+00,
1.29289322e+00, 1.00000000e-06, 1.29289322e+00,
5.00000000e+00, 5.00000000e+00, 2.29289322e+00,
1.00000000e+00, 2.29289322e+00, 5.00000000e+00,
5.00000000e+00, 3.29289322e+00, 3.00000000e+00,
3.29289322e+00, 5.00000000e+00, 5.00000000e+00,
5.00000000e+00, 5.00000000e+00, 5.00000000e+00,
5.00000000e+00])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_widths():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_widths.txt')
inputs = ModelParameterDictionary(input_str, auto_type=True)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
widths = np.ones(mg.number_of_nodes, dtype=float)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([
5., 5., 0., 5., 5., 5., 2., 1., 2., 5., 5., 3., 2., 3., 5., 5., 4., 4.,
4., 5., 5., 5., 5., 5., 5.
])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, use_W=widths, **inputs)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
sqrt_A = mg.at_node['drainage_area']**0.5
widths[mg.core_nodes] = sqrt_A[mg.core_nodes] / sqrt_A[
mg.core_nodes].mean()
# so widths has mean=1.
# note the issue with drainage_area not defined at perimeter => nans
# if not careful...
sp.run_one_step(dt)
z_tg = np.array([
5., 5., 0., 5., 5., 5., 1.37222369, 0.36876358, 1.37222369, 5., 5.,
2.17408606, 1.07986038, 2.17408606, 5., 5., 3.08340277, 2.85288049,
3.08340277, 5., 5., 5., 5., 5., 5.
])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
def test_sp_discharges_new():
input_str = os.path.join(_THIS_DIR, 'test_sp_params_discharge_new.txt')
inputs = ModelParameterDictionary(input_str)
nrows = 5
ncols = 5
dx = inputs.read_float('dx')
dt = inputs.read_float('dt')
mg = RasterModelGrid(nrows, ncols, dx)
mg.add_zeros('topographic__elevation', at='node')
z = np.array([5., 5., 0., 5., 5.,
5., 2., 1., 2., 5.,
5., 3., 2., 3., 5.,
5., 4., 4., 4., 5.,
5., 5., 5., 5., 5.])
mg['node']['topographic__elevation'] = z
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, **inputs)
# perform the loop (once!)
for i in range(1):
fr.route_flow()
sp.run_one_step(dt)
z_tg = np.array([5.00000000e+00, 5.00000000e+00, 0.00000000e+00,
5.00000000e+00, 5.00000000e+00, 5.00000000e+00,
1.29289322e+00, 1.00000000e-06, 1.29289322e+00,
5.00000000e+00, 5.00000000e+00, 2.29289322e+00,
1.00000000e+00, 2.29289322e+00, 5.00000000e+00,
5.00000000e+00, 3.29289322e+00, 3.00000000e+00,
3.29289322e+00, 5.00000000e+00, 5.00000000e+00,
5.00000000e+00, 5.00000000e+00, 5.00000000e+00,
5.00000000e+00])
assert_array_almost_equal(mg.at_node['topographic__elevation'], z_tg)
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node']['topographic__elevation'] = z + numpy.random.rand(len(z)) / 1000.
mg.add_zeros('node', 'water__unit_flux_in')
#make some K values in a field to test
#mg.at_node['K_values'] = 0.1+numpy.random.rand(nrows*ncols)/10.
mg.at_node['K_values'] = numpy.empty(nrows * ncols, dtype=float)
#mg.at_node['K_values'].fill(0.1+numpy.random.rand()/10.)
mg.at_node['K_values'].fill(0.001)
print('Running ...')
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, input_file_string)
#fsp = FastscapeEroder(mg, input_file_string)
precip = PrecipitationDistribution(input_file=input_file_string)
#load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, input_file_string)
try:
#raise NameError
mg = copy.deepcopy(mg_mature)
except NameError:
print('building a new grid...')
out_interval = 50000.
last_trunc = time_to_run #we use this to trigger taking an output plot
#run to a steady state:
#We're going to cheat by running Fastscape SP for the first part of the solution
mg = RasterModelGrid((nrows, ncols), xy_spacing=dx)
# create the fields in the grid
mg.add_zeros("topographic__elevation", at="node")
z = mg.zeros(at="node") + init_elev
mg["node"]["topographic__elevation"] = z + numpy.random.rand(len(z)) / 1000.
# make some K values in a field to test
mg.at_node["K_values"] = 0.1 + numpy.random.rand(nrows * ncols) / 10.
print("Running ...")
time_on = time.time()
# instantiate the components:
fr = FlowAccumulator(mg, flow_director="D8")
sp = StreamPowerEroder(mg, "./drive_sp_params.txt")
# load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, "./drive_sp_params.txt")
# perform the loop:
elapsed_time = 0. # total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.run_one_step()
# print 'Area: ', numpy.max(mg.at_node['drainage_area'])
# mg = fsp.erode(mg)
mg, _, _ = sp.erode(
mg,
rock_stress_param = inputs.read_float("rock_density") * 9.81
mg = RasterModelGrid(nrows, ncols, dx)
# create the fields in the grid
mg.add_zeros("topographic__elevation", at="node")
z = mg.zeros(at="node") + init_elev
mg["node"]["topographic__elevation"] = z + np.random.rand(len(z)) / 1000.
# make some surface load stresses in a field to test
mg.at_node["surface_load__stress"] = np.zeros(nrows * ncols, dtype=float)
# instantiate:
gf = gFlex(mg, "./coupled_SP_gflex_params.txt")
fsp = FastscapeEroder(mg, "./coupled_SP_gflex_params.txt")
sp = StreamPowerEroder(mg, "./coupled_SP_gflex_params.txt")
fr = FlowAccumulator(mg, flow_director="D8")
# perform the loop:
elapsed_time = 0. # total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.run_one_step()
# mg = fsp.erode(mg)
mg, _, _ = sp.erode(
mg,
dt,
node_drainage_areas="drainage_area",
rock_stress_param = inputs.read_float('rock_density')*9.81
mg = RasterModelGrid(nrows, ncols, dx)
#create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node'][ 'topographic__elevation'] = z + np.random.rand(len(z))/1000.
#make some surface load stresses in a field to test
mg.at_node['surface_load__stress'] = np.zeros(nrows*ncols, dtype=float)
#instantiate:
gf = gFlex(mg, './coupled_SP_gflex_params.txt')
fsp = FastscapeEroder(mg, './coupled_SP_gflex_params.txt')
sp = StreamPowerEroder(mg, './coupled_SP_gflex_params.txt')
fr = FlowRouter(mg)
#perform the loop:
elapsed_time = 0. #total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time+dt>time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.route_flow()
#mg = fsp.erode(mg)
mg,_,_ = sp.erode(mg, dt, node_drainage_areas='drainage_area', slopes_at_nodes='topographic__steepest_slope')
mg.at_node['surface_load__stress'] = (mg.at_node['topographic__elevation']+1000)*rock_stress_param
gf.flex_lithosphere()
mg.at_node['topographic__elevation'][mg.number_of_nodes//4:3.*mg.number_of_nodes//4] += uplift_perstep
#create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node']['topographic__elevation'] = z + numpy.random.rand(len(z)) / 1000.
#make some K values in a field to test
mg.at_node['K_values'] = 0.1 + numpy.random.rand(nrows * ncols) / 10.
mg.set_closed_boundaries_at_grid_edges(False, True, True, True)
print('Running ...')
time_on = time.time()
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, './drive_sp_params.txt')
#load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, './drive_sp_params.txt')
#perform the loop:
elapsed_time = 0. #total time in simulation
counter = 0.
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.route_flow(method='D8')
#print 'Area: ', numpy.max(mg.at_node['drainage_area'])
#mg = fsp.erode(mg)
mg, _, _ = sp.erode(mg,
mg = RasterModelGrid(nrows, ncols, dx)
# create the fields in the grid
mg.add_zeros("topographic__elevation", at="node")
z = mg.zeros(at="node") + init_elev
mg["node"]["topographic__elevation"] = z + numpy.random.rand(len(z)) / 1000.
# make some K values in a field to test
mg.at_node["K_values"] = 0.1 + numpy.random.rand(nrows * ncols) / 10.
print("Running ...")
time_on = time.time()
# instantiate the components:
fr = FlowAccumulator(mg, flow_director="D8")
sp = StreamPowerEroder(mg, "./drive_sp_params.txt")
# load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, "./drive_sp_params.txt")
# perform the loop:
elapsed_time = 0. # total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.run_one_step()
# print 'Area: ', numpy.max(mg.at_node['drainage_area'])
# mg = fsp.erode(mg)
mg, _, _ = sp.erode(
mg,
4.0,
5.0,
5.0,
5.0,
5.0,
5.0,
5.0,
]
)
mg["node"]["topographic__elevation"] = z
print("Running ...")
# instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, "./drive_sp_params_discharge.txt")
# load the Fastscape module too, to allow direct comparison
fsp = Fsc(mg, "./drive_sp_params_discharge.txt")
# perform the loop (once!)
for i in range(1):
fr.route_flow(method="D8")
my_Q = mg.at_node["water__discharge"] * 1.0
sp.erode(mg, dt, node_drainage_areas="drainage_area", slopes_at_nodes="topographic__steepest_slope", Q_if_used=my_Q)
# no uplift
# print the stream power that was calculated:
print("stream power values:")
print(mg.at_node["stream_power_erosion"])
# Finalize and plot
rock_stress_param = inputs.read_float("rock_density") * 9.81
mg = RasterModelGrid((nrows, ncols), xy_spacing=dx)
# create the fields in the grid
mg.add_zeros("topographic__elevation", at="node")
z = mg.zeros(at="node") + init_elev
mg["node"]["topographic__elevation"] = z + np.random.rand(len(z)) / 1000.
# make some surface load stresses in a field to test
mg.at_node["surface_load__stress"] = np.zeros(nrows * ncols, dtype=float)
# instantiate:
gf = gFlex(mg, "./coupled_SP_gflex_params.txt")
fsp = FastscapeEroder(mg, "./coupled_SP_gflex_params.txt")
sp = StreamPowerEroder(mg, "./coupled_SP_gflex_params.txt")
fr = FlowAccumulator(mg, flow_director="D8")
# perform the loop:
elapsed_time = 0. # total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.run_one_step()
# mg = fsp.erode(mg)
mg, _, _ = sp.erode(
mg,
dt,
node_drainage_areas="drainage_area",
#create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node'][ 'topographic__elevation'] = z + numpy.random.rand(len(z))/1000.
#make some K values in a field to test
mg.at_node['K_values'] = 1.e-6+numpy.random.rand(nrows*ncols)*1.e-8
mg.set_closed_boundaries_at_grid_edges(False, True, True, True)
print( 'Running ...' )
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, './drive_sp_params.txt')
fsp = Fsc(mg, './drive_sp_params.txt')
#load the Fastscape module too, to allow direct comparison
fsp = Fsc(mg, './drive_sp_params.txt')
#vid = VideoPlotter(mg, data_centering='node', step=2.5)
try:
mg = copy.deepcopy(mg_mature)
except NameError:
#run to a steady state:
#We're going to cheat by running Fastscape SP for the first part of the solution
elapsed_time = 0. #total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time+dt>time_to_run:
#create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
#z += mg.node_x*0.001
mg['node'][ 'topographic__elevation'] = z + numpy.random.rand(len(z))/1000.
#make some K values in a field to test
mg.at_node['K_values'] = 0.1+numpy.random.rand(nrows*ncols)/10.
print( 'Running ...' )
time_on = time.time()
#instantiate the components:
fr = FlowAccumulator(mg, flow_director='D8')
sp = StreamPowerEroder(mg, './drive_sp_params.txt')
lf = DepressionFinderAndRouter(mg)
#load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, './drive_sp_params.txt')
#perform the loop:
elapsed_time = 0. #total time in simulation
while elapsed_time < time_to_run:
#for i in range(10):
print(elapsed_time)
if elapsed_time+dt>time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.route_flow(method='D8')
lf.map_depressions()
#print 'Area: ', numpy.max(mg.at_node['drainage_area'])
#create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node']['topographic__elevation'] = z + numpy.random.rand(len(z)) / 1000.
#make some K values in a field to test
mg.at_node['K_values'] = 1.e-6 + numpy.random.rand(nrows * ncols) * 1.e-8
mg.set_closed_boundaries_at_grid_edges(False, True, True, True)
print('Running ...')
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, './drive_sp_params.txt')
fsp = Fsc(mg, './drive_sp_params.txt')
#load the Fastscape module too, to allow direct comparison
fsp = Fsc(mg, './drive_sp_params.txt')
#vid = VideoPlotter(mg, data_centering='node', step=2.5)
try:
mg = copy.deepcopy(mg_mature)
except NameError:
#run to a steady state:
#We're going to cheat by running Fastscape SP for the first part of the solution
elapsed_time = 0. #total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
# create the fields in the grid
mg.add_zeros("topographic__elevation", at="node")
z = mg.zeros(at="node") + init_elev
mg["node"]["topographic__elevation"] = z + numpy.random.rand(len(z)) / 1000.0
# make some K values in a field to test
mg.at_node["K_values"] = 1.0e-6 + numpy.random.rand(nrows * ncols) * 1.0e-8
mg.set_closed_boundaries_at_grid_edges(False, True, True, True)
print("Running ...")
# instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, "./drive_sp_params.txt")
fsp = Fsc(mg, "./drive_sp_params.txt")
# load the Fastscape module too, to allow direct comparison
fsp = Fsc(mg, "./drive_sp_params.txt")
# vid = VideoPlotter(mg, data_centering='node', step=2.5)
try:
mg = copy.deepcopy(mg_mature)
except NameError:
# run to a steady state:
# We're going to cheat by running Fastscape SP for the first part of the solution
elapsed_time = 0.0 # total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
from six.moves import range
from landlab import VoronoiDelaunayGrid
from landlab.components.flow_routing import FlowRouter
from landlab.components.stream_power import StreamPowerEroder
from landlab.plot.imshow import imshow_node_grid
import numpy as np
from matplotlib.pyplot import figure, show
nnodes = 10000
x, y = np.random.rand(nnodes), np.random.rand(nnodes)
mg = VoronoiDelaunayGrid(x,y)
z = mg.add_field('node', 'topographic__elevation', np.random.rand(nnodes)/10000., copy=False)
fr = FlowRouter(mg)
spe = StreamPowerEroder(mg, 'drive_sp_params_voronoi.txt')
for i in range(100):
z[mg.core_nodes] += 0.01
fr.route_flow()
spe.erode(mg, 1.)
imshow_node_grid(mg, 'topographic__elevation')
show()
mg = RasterModelGrid(nrows, ncols, dx)
#create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node']['topographic__elevation'] = z + numpy.random.rand(len(z)) / 1000.
#make some K values in a field to test
mg.at_node['K_values'] = 0.1 + numpy.random.rand(nrows * ncols) / 10.
print('Running ...')
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, './drive_sp_params.txt')
#load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, './drive_sp_params.txt')
#perform the loop:
elapsed_time = 0. #total time in simulation
while elapsed_time < time_to_run:
print(elapsed_time)
if elapsed_time + dt > time_to_run:
print("Short step!")
dt = time_to_run - elapsed_time
mg = fr.route_flow()
#print 'Area: ', numpy.max(mg.at_node['drainage_area'])
#mg = fsp.erode(mg)
mg = fsp.erode(mg, K_if_used='K_values')
#mg,_,_ = sp.erode(mg, dt, node_drainage_areas='drainage_area', slopes_at_nodes='topographic__steepest_slope')
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node'][ 'topographic__elevation'] = z + numpy.random.rand(len(z))/1000.
mg.add_zeros('node', 'water__unit_flux_in')
#make some K values in a field to test
#mg.at_node['K_values'] = 0.1+numpy.random.rand(nrows*ncols)/10.
mg.at_node['K_values'] = numpy.empty(nrows*ncols, dtype=float)
#mg.at_node['K_values'].fill(0.1+numpy.random.rand()/10.)
mg.at_node['K_values'].fill(0.001)
print( 'Running ...' )
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, input_file_string)
#fsp = FastscapeEroder(mg, input_file_string)
precip = PrecipitationDistribution(input_file=input_file_string)
#load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, input_file_string)
try:
#raise NameError
mg = copy.deepcopy(mg_mature)
except NameError:
print('building a new grid...')
out_interval = 50000.
last_trunc = time_to_run #we use this to trigger taking an output plot
#run to a steady state:
#We're going to cheat by running Fastscape SP for the first part of the solution
mg = RasterModelGrid(nrows, ncols, dx)
# create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = np.array([5., 5., 0., 5., 5.,
5., 2., 1., 2., 5.,
5., 3., 2., 3., 5.,
5., 4., 4., 4., 5.,
5., 5., 5., 5., 5.])
mg['node']['topographic__elevation'] = z
print('Running ...')
# instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, './drive_sp_params_discharge.txt')
# load the Fastscape module too, to allow direct comparison
fsp = Fsc(mg, './drive_sp_params_discharge.txt')
# perform the loop (once!)
for i in range(1):
fr.route_flow(method='D8')
my_Q = mg.at_node['water__volume_flux']*1.
sp.erode(mg, dt, node_drainage_areas='drainage_area',
slopes_at_nodes='topographic__steepest_slope',
Q_if_used=my_Q)
# no uplift
# print the stream power that was calculated:
print('stream power values:')
print(mg.at_node['stream_power_erosion'])
mg = RasterModelGrid(nrows, ncols, dx)
# create the fields in the grid
mg.add_zeros('topographic__elevation', at='node')
z = np.array([
5., 5., 0., 5., 5., 5., 2., 1., 2., 5., 5., 3., 2., 3., 5., 5., 4., 4., 4.,
5., 5., 5., 5., 5., 5.
])
mg['node']['topographic__elevation'] = z
print('Running ...')
# instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, './drive_sp_params_discharge.txt')
# load the Fastscape module too, to allow direct comparison
fsp = Fsc(mg, './drive_sp_params_discharge.txt')
# perform the loop (once!)
for i in range(1):
fr.route_flow(method='D8')
my_Q = mg.at_node['water__volume_flux'] * 1.
sp.erode(mg,
dt,
node_drainage_areas='drainage_area',
slopes_at_nodes='topographic__steepest_slope',
Q_if_used=my_Q)
# no uplift
# print the stream power that was calculated:
mg.add_zeros('topographic__elevation', at='node')
z = mg.zeros(at='node') + init_elev
mg['node'][ 'topographic__elevation'] = z + numpy.random.rand(len(z))/1000.
mg.add_zeros('node', 'water__unit_flux_in')
#make some K values in a field to test
#mg.at_node['K_values'] = 0.1+numpy.random.rand(nrows*ncols)/10.
mg.at_node['K_values'] = numpy.empty(nrows*ncols, dtype=float)
#mg.at_node['K_values'].fill(0.1+numpy.random.rand()/10.)
mg.at_node['K_values'].fill(0.001)
print( 'Running ...' )
#instantiate the components:
fr = FlowRouter(mg)
sp = StreamPowerEroder(mg, input_file_string)
#fsp = FastscapeEroder(mg, input_file_string)
precip = PrecipitationDistribution(input_file=input_file_string)
#load the Fastscape module too, to allow direct comparison
fsp = FastscapeEroder(mg, input_file_string)
try:
#raise NameError
mg = copy.deepcopy(mg_mature)
except NameError:
print('building a new grid...')
out_interval = 50000.
last_trunc = time_to_run #we use this to trigger taking an output plot
#run to a steady state:
#We're going to cheat by running Fastscape SP for the first part of the solution
