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_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)
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_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_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_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_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_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_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)