def simple_model(output_dir):
start_time = "2018-09-20T12:00"
model = gs.Model(
start_time=start_time,
duration=gs.days(1),
time_step=gs.minutes(30),
name="test model for tideflats",
)
model.map = MapFromBNA(bna_file)
model.movers += gs.constant_wind_mover(10, 300, "m/s")
model.spills += gs.surface_point_line_spill(
num_elements=100,
start_position=(5.4, 53.38, 0),
end_position=(5.8, 53.4, 0),
release_time=start_time,
)
model.outputters += gs.Renderer(
output_timestep=gs.hours(1),
map_filename=bna_file,
output_dir=output_dir,
formats=['gif'], # ['gif', 'png']
image_size=(800, 400),
# viewport=((4.5, 53.0),
# (5.5, 53.5)),
)
return model
def make_model():
print 'initializing the model'
model = gs.Model(duration=gs.days(5))
print 'adding outputters'
budget_file = os.path.join(base_dir, 'GNOME_oil_budget.csv')
model.outputters += gs.OilBudgetOutput(budget_file)
print 'adding a spill'
# We need a spill at the very least
spill = gs.point_line_release_spill(num_elements=10, # no need for a lot of elements for a instantaneous release
start_position=(0.0, 0.0, 0.0),
release_time=model.start_time,
amount=1000,
substance='ALASKA NORTH SLOPE (MIDDLE PIPELINE, 1997)',
units='bbl')
model.spills += spill
print 'adding a RandomMover:'
model.movers += gs.RandomMover()
print 'adding a wind mover:'
model.movers += gs.constant_wind_mover(speed=10, direction=0, units="m/s")
model.environment += gs.Water(25, units={"temperature": "C"})
waves = gs.Waves()
model.environment += waves
print 'adding the standard weatherers'
model.add_weathering()
return model
def make_model(images_dir=os.path.join(base_dir, 'images')):
# create the maps:
print 'creating the maps'
mapfile = gs.get_datafile(os.path.join(base_dir, './MassBayMap.bna'))
gnome_map = gs.MapFromBNA(
mapfile,
refloat_halflife=1, # hours
raster_size=2048 * 2048 # about 4 MB
)
renderer = gs.Renderer(mapfile,
images_dir,
image_size=(800, 800),
projection_class=GeoProjection)
print 'initializing the model'
# start_time = datetime(2013, 3, 12, 10, 0)
start_time = "2013-03-12T10:00"
# 15 minutes in seconds
# Default to now, rounded to the nearest hour
model = gs.Model(time_step=gs.minutes(15),
start_time=start_time,
duration=gs.days(1),
map=gnome_map,
uncertain=True)
print 'adding outputters'
model.outputters += renderer
netcdf_file = os.path.join(base_dir, 'script_boston.nc')
gs.remove_netcdf(netcdf_file)
model.outputters += gs.NetCDFOutput(netcdf_file, which_data='all')
model.outputters += gs.KMZOutput(
os.path.join(base_dir, 'script_boston.kmz'))
print 'adding a RandomMover:'
model.movers += gs.RandomMover(diffusion_coef=100000)
print 'adding a wind mover:'
# series = np.zeros((2, ), dtype=datetime_value_2d)
# series[0] = (start_time, (5, 180))
# series[1] = (start_time + timedelta(hours=25), (5, 180))
# w_mover = WindMover(Wind(timeseries=series, units='m/s'))
# model.movers += w_mover
# model.environment += w_mover.wind
w_mover = gs.constant_wind_mover(5, 180, units='m/s')
model.movers += w_mover
print 'adding a cats shio mover:'
curr_file = gs.get_datafile(os.path.join(base_dir, r"./EbbTides.cur"))
tide_file = gs.get_datafile(os.path.join(base_dir, r"./EbbTidesShio.txt"))
c_mover = gs.CatsMover(curr_file, tide=gs.Tide(tide_file))
# this is the value in the file (default)
c_mover.scale_refpoint = (-70.8875, 42.321333)
c_mover.scale = True
c_mover.scale_value = -1
model.movers += c_mover
# TODO: cannot add this till environment base class is created
# model.environment += c_mover.tide
print 'adding a cats ossm mover:'
# ossm_file = get_datafile(os.path.join(base_dir,
# r"./MerrimackMassCoastOSSM.txt"))
curr_file = gs.get_datafile(
os.path.join(base_dir, "MerrimackMassCoast.cur"))
tide_file = gs.get_datafile(
os.path.join(base_dir, "MerrimackMassCoastOSSM.txt"))
c_mover = gs.CatsMover(curr_file, tide=gs.Tide(tide_file))
# but do need to scale (based on river stage)
c_mover.scale = True
c_mover.scale_refpoint = (-70.65, 42.58333)
c_mover.scale_value = 1.
model.movers += c_mover
model.environment += c_mover.tide
print 'adding a cats mover:'
curr_file = gs.get_datafile(os.path.join(base_dir, "MassBaySewage.cur"))
c_mover = gs.CatsMover(curr_file)
# but do need to scale (based on river stage)
c_mover.scale = True
c_mover.scale_refpoint = (-70.78333, 42.39333)
# the scale factor is 0 if user inputs no sewage outfall effects
c_mover.scale_value = .04
model.movers += c_mover
# pat1Angle 315;
# pat1Speed 19.44; pat1SpeedUnits knots;
# pat1ScaleToValue 0.138855
#
# pat2Angle 225;
# pat2Speed 19.44; pat2SpeedUnits knots;
# pat2ScaleToValue 0.05121
#
# scaleBy WindStress
print "adding a component mover:"
component_file1 = gs.get_datafile(os.path.join(base_dir, "WAC10msNW.cur"))
component_file2 = gs.get_datafile(os.path.join(base_dir, "WAC10msSW.cur"))
comp_mover = gs.ComponentMover(component_file1, component_file2,
w_mover.wind)
# todo: callback did not work correctly below - fix!
# comp_mover = ComponentMover(component_file1,
# component_file2,
# Wind(timeseries=series, units='m/s'))
comp_mover.scale_refpoint = (-70.855, 42.275)
comp_mover.pat1_angle = 315
comp_mover.pat1_speed = 19.44
comp_mover.pat1_speed_units = 1
comp_mover.pat1ScaleToValue = .138855
comp_mover.pat2_angle = 225
comp_mover.pat2_speed = 19.44
comp_mover.pat2_speed_units = 1
comp_mover.pat2ScaleToValue = .05121
model.movers += comp_mover
print 'adding a spill'
end_time = gs.asdatetime(start_time) + gs.hours(12)
spill = gs.point_line_release_spill(num_elements=100,
start_position=(-70.911432, 42.369142,
0.0),
release_time=start_time,
end_release_time=end_time)
model.spills += spill
return model
Wind = {"speed": 10, "direction": 270, "units": "m/s"}
SpillPosition = (5.122382, 53.327899, 0) # tussen VL en TX
# SpillPosition = (5.210218, 53.231510, 0) # route Harlingen Terschelling
# SpillPosition = (4.834194, 52.936454, 0)
# Model Parameters:
base_dir = os.path.dirname(__file__)
newpath = os.path.join(base_dir, out_dir)
if not os.path.exists(newpath):
os.makedirs(newpath)
print 'init model'
model = gs.Model(start_time=start_time,
duration=model_duration,
time_step=gs.minutes(1))
print 'Loading current'
topology = {'grid_type': 'rgrid', 'node_lon': 'x', 'node_lat': 'y'}
current = gs.GridCurrent.from_netCDF(os.path.join(data_dir, currentfile),
grid_topology=topology)
angle = TimeseriesData.constant(name='angle', data=17.0, units='degrees')
current.angle = angle
current_mover = PyCurrentMover(current=current)
print 'Adding map'
tideflat = Matroos_Mudflats(os.path.join(data_dir, currentfile),
grid_topology=topology)
# define base directory
base_dir = os.path.dirname(__file__)
images_dir = os.path.join(base_dir, 'images')
WINDAGE = 0.03
print "running with windage:", WINDAGE
# gs.set_verbose('info')
# pf = gs.PrintFinder()
rel_time = "2019-04-18T21:00:00"
model = gs.Model(
name='Whale Drift',
time_step=3600,
start_time=rel_time,
duration=gs.days(3),
)
mapfile = gs.get_datafile(os.path.join(base_dir, 'coast.bna'))
model.map = gs.MapFromBNA(mapfile, refloat_halflife=float("inf"))
# nam = gs.PyWindMover("NAM_5K.nc")
# nam.active_range = (gs.MinusInfTime(),
# gs.asdatetime("2019-04-19T22:00"))
# model.movers += nam
# gfs = gs.PyWindMover("GFS_Global_0p5deg-4-18.nc")
# model.movers += gfs
def make_model(images_dir=os.path.join(base_dir, 'images')):
print 'initializing the model'
start_time = "1985-01-01T13:31"
model = gs.Model(start_time=start_time,
duration=gs.days(2),
time_step=gs.hours(1))
mapfile = gs.get_datafile(os.path.join(base_dir, 'ak_arctic.bna'))
print 'adding the map'
model.map = gs.MapFromBNA(mapfile, refloat_halflife=0.0) # seconds
print 'adding outputters'
renderer = gs.Renderer(mapfile, images_dir, image_size=(1024, 768))
renderer.set_viewport(((-165, 69), (-161.5, 70)))
# model.outputters += renderer
netcdf_file = os.path.join(base_dir, 'script_ice.nc')
gs.remove_netcdf(netcdf_file)
model.outputters += gs.NetCDFOutput(netcdf_file, which_data='all')
print 'adding a spill'
# For a subsurfce spill, you would need to add vertical movers:
# - gs.RiseVelocityMover
# - gs.RandomVerticalMover
spill1 = gs.point_line_release_spill(num_elements=1000,
start_position=(-163.75, 69.75, 0.0),
release_time=start_time)
model.spills += spill1
print 'adding the ice movers'
fn = [
gs.get_datafile('arctic_avg2_0001_gnome.nc'),
gs.get_datafile('arctic_avg2_0002_gnome.nc'),
]
gt = {'node_lon': 'lon', 'node_lat': 'lat'}
ice_aware_curr = gs.IceAwareCurrent.from_netCDF(filename=fn,
grid_topology=gt)
ice_aware_wind = gs.IceAwareWind.from_netCDF(
filename=fn,
grid=ice_aware_curr.grid,
)
method = 'RK2'
i_c_mover = gs.PyCurrentMover(current=ice_aware_curr,
default_num_method=method)
i_w_mover = gs.PyWindMover(wind=ice_aware_wind, default_num_method=method)
# shifting to -360 to 0 longitude
ice_aware_curr.grid.node_lon = ice_aware_curr.grid.node_lon[:] - 360
model.movers += i_c_mover
model.movers += i_w_mover
print 'adding an Ice RandomMover:'
model.movers += IceAwareRandomMover(
ice_concentration=ice_aware_curr.ice_concentration,
diffusion_coef=50000)
# to visualize the grid and currents
# renderer.add_grid(ice_aware_curr.grid)
# renderer.add_vec_prop(ice_aware_curr)
return model
def make_model():
"""
Set up a GNOME simulation that uses TAMOC
Set up a spill scenario in GNOME that uses TAMOC to simulate a subsurface
blowout and then pass the TAMOC solution to GNOME for the far-field
particle tracking
"""
# Set up the directory structure for the model
base_dir, images_dir, outfiles_dir = set_directory_structure()
# Set up the modeling environment
print '\n-- Initializing the Model --'
start_time = "2019-06-01T12:00"
model = gs.Model(start_time=start_time,
duration=gs.days(3),
time_step=gs.minutes(30),
uncertain=False)
# Add a map
print '\n-- Adding a Map --'
model.map = gs.GnomeMap()
# Add image output
print '\n-- Adding Image Outputters --'
renderer = gs.Renderer(output_dir=images_dir,
image_size=(1024, 768),
output_timestep=gs.hours(1),
viewport=((-0.15, -0.35), (0.15, 0.35)))
model.outputters += renderer
# Add NetCDF output
print '\n-- Adding NetCDF Outputter --'
if not os.path.exists(outfiles_dir):
os.mkdir(outfiles_dir)
netcdf_file = os.path.join(outfiles_dir, 'script_tamoc.nc')
gs.remove_netcdf(netcdf_file)
file_writer = gs.NetCDFOutput(netcdf_file,
which_data='all',
output_timestep=gs.hours(2))
model.outputters += file_writer
# Add a spill object
print '\n-- Adding a Point Spill --'
end_release_time = model.start_time + gs.hours(12)
point_source = ts.TamocSpill(num_elements=100,
start_position=(0.0, 0.0, 1000.),
release_duration=gs.hours(24),
release_time=start_time,
substance='AD01554',
release_rate=20000.,
units='bbl/day',
gor=500.,
d0=0.5,
phi_0=-np.pi / 2.,
theta_0=0.,
windage_range=(0.01, 0.04),
windage_persist=900,
name='Oil Well Blowout')
model.spills += point_source
# Create an ocean environment
water, wind, waves = base_environment(water_temp=273.15 + 21.,
wind_speed=5.,
wind_dir=225.)
# Add a uniform current in the easterly direction
print '\n-- Adding Currents --'
uniform_current = gs.SimpleMover(velocity=(0.1, 0.0, 0.))
model.movers += uniform_current
# Add a wind mover
wind_mover = gs.WindMover(wind)
model.movers += wind_mover
# Add particle diffusion...note, units are in cm^2/s
print '\n-- Adding Particle Diffusion --'
particle_diffusion = gs.RandomMover3D(
horizontal_diffusion_coef_above_ml=100000.,
horizontal_diffusion_coef_below_ml=10000.,
vertical_diffusion_coef_above_ml=100.,
vertical_diffusion_coef_below_ml=10.,
mixed_layer_depth=15.)
model.movers += particle_diffusion
# Add rise velocity for droplets
print '\n-- Adding Particle Rise Velocity --'
# fixme: we do have code for rise velocity:
# gnome.movers.RiseVelocityMover
# let's test that later
slip_velocity = gs.SimpleMover(velocity=(0.0, 0.0, -0.1))
model.movers += slip_velocity
# Add dissolution
print '\n-- Adding Weathering --'
evaporation = Evaporation(water=water, wind=wind)
model.weatherers += evaporation
dissolution = Dissolution(waves=waves, wind=wind)
model.weatherers += dissolution
return model