source: anuga_work/production/sydney_2006/run_sydney_slide.py @ 4056

Last change on this file since 4056 was 4056, checked in by sexton, 17 years ago

update sydney script based on survey data

File size: 8.4 KB
Line 
1"""Script for running a tsunami inundation scenario for Sydney, NSW, Australia.
2
3Source data such as elevation and boundary data is assumed to be available in
4directories specified by project_slide.py
5The output sww file is stored in project_slide.outputtimedir
6
7The scenario is defined by a triangular mesh created from project_slide.polygon,
8the elevation data and a tsunami wave generated by s submarine mass failure.
9
10Ole Nielsen and Duncan Gray, GA - 2005 and Nick Bartzis, GA - 2006
11"""
12
13#-------------------------------------------------------------------------------
14# Import necessary modules
15#-------------------------------------------------------------------------------
16
17# Standard modules
18import os
19import time
20from shutil import copy
21from os.path import dirname, basename
22from os import mkdir, access, F_OK, sep
23import sys
24
25# Related major packages
26from anuga.shallow_water import Domain, Reflective_boundary, Dirichlet_boundary
27from anuga.shallow_water.data_manager import convert_dem_from_ascii2netcdf, dem2pts
28from anuga.geospatial_data.geospatial_data import *
29from anuga.abstract_2d_finite_volumes.util import start_screen_catcher, copy_code_files
30
31# Application specific imports
32import project_slide              # Definition of file names and polygons
33
34#-------------------------------------------------------------------------------
35# Copy scripts to time stamped output directory and capture screen
36# output to file
37#-------------------------------------------------------------------------------
38
39# creates copy of code in output dir
40copy_code_files(project_slide.outputtimedir,__file__,dirname(project_slide.__file__)+sep+ project_slide.__name__+'.py' )
41myid = 0
42numprocs = 1
43start_screen_catcher(project_slide.outputtimedir, myid, numprocs)
44
45print 'USER:    ', project_slide.user
46
47#-------------------------------------------------------------------------------
48# Preparation of topographic data
49#
50# Convert ASC 2 DEM 2 PTS using source data and store result in source data
51#-------------------------------------------------------------------------------
52
53# filenames
54on_offshore25_dem_name = project_slide.on_offshore25_dem_name
55on_offshore100_dem_name = project_slide.on_offshore100_dem_name
56nsw_dem_name = project_slide.nsw_dem_name
57meshname = project_slide.meshname+'.msh'
58
59# creates DEM from asc data
60convert_dem_from_ascii2netcdf(on_offshore25_dem_name, use_cache=True, verbose=True)
61convert_dem_from_ascii2netcdf(on_offshore100_dem_name, use_cache=True, verbose=True)
62convert_dem_from_ascii2netcdf(nsw_dem_name, use_cache=True, verbose=True)
63
64#creates pts file for onshore DEM
65dem2pts(on_offshore25_dem_name,
66        easting_min=project_slide.eastingmin25,
67        easting_max=project_slide.eastingmax25,
68        northing_min=project_slide.northingmin25,
69        northing_max= project_slide.northingmax25,
70        use_cache=True, verbose=True)
71dem2pts(on_offshore100_dem_name,
72        easting_min=project_slide.eastingmin100,
73        easting_max=project_slide.eastingmax100,
74        northing_min=project_slide.northingmin100,
75        northing_max= project_slide.northingmax100,
76        use_cache=True, verbose=True)
77dem2pts(nsw_dem_name,
78        easting_min=project_slide.eastingmin_nsw,
79        easting_max=project_slide.eastingmax_nsw,
80        northing_min=project_slide.northingmin_nsw,
81        northing_max= project_slide.northingmax_nsw,
82        use_cache=True, verbose=True)
83
84print 'create offshore'
85G1 = Geospatial_data(file_name = project_slide.offshore_dem_name1 + '.xya')+\
86     Geospatial_data(file_name = project_slide.offshore_dem_name2 + '.xya')+\
87     Geospatial_data(file_name = project_slide.offshore_dem_name3 + '.xya')+\
88print 'create onshore'
89G2 = Geospatial_data(file_name = project_slide.on_offshore25_dem_name + '.pts')
90G3 = Geospatial_data(file_name = project_slide.on_offshore100_dem_name + '.pts')
91G4 = Geospatial_data(file_name = project_slide.nsw_dem_name + '.pts')
92print 'add'
93G = G1.clip(Geospatial(project_slide.poly_surveyclip)) +\
94    G2.clip(Geospatial_data(project_slide.poly_25mclip)) +\
95    G3.clip(Geospatial_data(project_slide.poly_origsyd)) +\
96    (G4.clip(Geospatial_data(project_slide.polyAll))).clip_outside(Geospatial_data(project_slide.poly_surveyclip))
97print 'export points'
98G.export_points_file(project_slide.combined_dem_name + '.pts')
99#G.export_points_file(project_slide.combined_dem_name + '.xya')
100
101#----------------------------------------------------------------------------
102# Create the triangular mesh based on overall clipping polygon with a tagged
103# boundary and interior regions defined in project_slide.py along with
104# resolutions (maximal area of per triangle) for each polygon
105#-------------------------------------------------------------------------------
106
107from anuga.pmesh.mesh_interface import create_mesh_from_regions
108remainder_res = 125000.
109local_res = 30000.
110coast_res = 500.
111interior_regions = [[project_slide.poly_syd1, local_res],
112                    [project_slide.poly_coast, coast_res]]
113
114from caching import cache
115_ = cache(create_mesh_from_regions,
116          project_slide.polyAll,
117           {'boundary_tags': {'e0': [0], 'e1': [1], 'e2': [2],
118                              'e3': [3], 'e4':[4]},
119           'maximum_triangle_area': remainder_res,
120           'filename': meshname,
121           'interior_regions': interior_regions},
122          verbose = True, evaluate=False)
123print 'created mesh'
124
125#-------------------------------------------------------------------------------                                 
126# Setup computational domain
127#-------------------------------------------------------------------------------                                 
128domain = Domain(meshname, use_cache = True, verbose = True)
129
130print 'Number of triangles = ', len(domain)
131print 'The extent is ', domain.get_extent()
132print domain.statistics()
133
134domain.set_name(project_slide.basename)
135domain.set_datadir(project_slide.outputtimedir)
136domain.set_quantities_to_be_stored(['stage', 'xmomentum', 'ymomentum'])
137domain.set_minimum_storable_height(0.01)
138
139#-------------------------------------------------------------------------------                                 
140# Setup initial conditions
141#-------------------------------------------------------------------------------
142
143tide = 0.0
144domain.set_quantity('stage', tide)
145domain.set_quantity('friction', 0.0) 
146domain.set_quantity('elevation', 
147                    filename = project_slide.combined_dem_name + '.pts',
148                    use_cache = True,
149                    verbose = True,
150                    alpha = 0.1
151                    )
152
153#-------------------------------------------------------------------------------
154# Set up scenario (tsunami_source is a callable object used with set_quantity)
155#-------------------------------------------------------------------------------
156from smf import slide_tsunami
157
158tsunami_source = slide_tsunami(length=project_slide.bulli_length,
159                               width=project_slide.bulli_width,
160                               depth=project_slide.bulli_depth,
161                               slope=project_slide.bulli_slope,
162                               thickness=project_slide.bulli_thickness, 
163                               x0=project_slide.slide_origin_b[0], 
164                               y0=project_slide.slide_origin_b[1], 
165                               alpha=project_slide.bulli_alpha, 
166                               domain=domain)
167
168#-------------------------------------------------------------------------------                                 
169# Setup boundary conditions
170#-------------------------------------------------------------------------------
171print 'Available boundary tags', domain.get_boundary_tags()
172
173Br = Reflective_boundary(domain)
174Bd = Dirichlet_boundary([tide,0,0])
175
176domain.set_boundary( {'e0': Bd,  'e1': Bd, 'e2': Bd, 'e3': Bd, 'e4': Bd} )
177
178
179#-------------------------------------------------------------------------------                                 
180# Evolve system through time
181#-------------------------------------------------------------------------------
182import time
183from Numeric import allclose
184from anuga.abstract_2d_finite_volumes.quantity import Quantity
185
186t0 = time.time()
187
188for t in domain.evolve(yieldstep = 30, finaltime = 480): 
189    domain.write_time()
190    domain.write_boundary_statistics(tags = 'e2')
191    stagestep = domain.get_quantity('stage') 
192
193    if allclose(t, 30):
194        slide = Quantity(domain)
195        slide.set_values(tsunami_source)
196        domain.set_quantity('stage', slide + stagestep)
197   
198print 'That took %.2f seconds' %(time.time()-t0)
199
200print 'finished'
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