| 1 | """Script for running a tsunami inundation scenario for Sydney, NSW, Australia. |
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| 2 | |
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| 3 | Source data such as elevation and boundary data is assumed to be available in |
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| 4 | directories specified by project_slide.py |
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| 5 | The output sww file is stored in project_slide.outputtimedir |
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| 6 | |
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| 7 | The scenario is defined by a triangular mesh created from project_slide.polygon, |
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| 8 | the elevation data and a tsunami wave generated by s submarine mass failure. |
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| 9 | |
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| 10 | Ole Nielsen and Duncan Gray, GA - 2005 and Nick Bartzis, GA - 2006 |
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| 11 | """ |
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| 12 | |
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| 13 | #------------------------------------------------------------------------------- |
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| 14 | # Import necessary modules |
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| 15 | #------------------------------------------------------------------------------- |
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| 16 | |
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| 17 | # Standard modules |
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| 18 | import os |
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| 19 | import time |
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| 20 | from shutil import copy |
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| 21 | from os.path import dirname, basename |
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| 22 | from os import mkdir, access, F_OK, sep |
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| 23 | import sys |
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| 24 | |
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| 25 | # Related major packages |
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| 26 | from anuga.shallow_water import Domain, Reflective_boundary, Dirichlet_boundary |
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| 27 | from anuga.shallow_water.data_manager import convert_dem_from_ascii2netcdf, dem2pts |
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| 28 | from anuga.geospatial_data.geospatial_data import * |
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| 29 | from anuga.abstract_2d_finite_volumes.util import start_screen_catcher, copy_code_files |
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| 30 | |
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| 31 | # Application specific imports |
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| 32 | import project_slide # Definition of file names and polygons |
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| 33 | |
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| 34 | #------------------------------------------------------------------------------- |
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| 35 | # Copy scripts to time stamped output directory and capture screen |
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| 36 | # output to file |
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| 37 | #------------------------------------------------------------------------------- |
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| 38 | |
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| 39 | # creates copy of code in output dir |
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| 40 | copy_code_files(project_slide.outputtimedir,__file__,dirname(project_slide.__file__)+sep+ project_slide.__name__+'.py' ) |
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| 41 | myid = 0 |
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| 42 | numprocs = 1 |
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| 43 | start_screen_catcher(project_slide.outputtimedir, myid, numprocs) |
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| 44 | |
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| 45 | print 'USER: ', project_slide.user |
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| 46 | |
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| 47 | #------------------------------------------------------------------------------- |
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| 48 | # Preparation of topographic data |
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| 49 | # |
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| 50 | # Convert ASC 2 DEM 2 PTS using source data and store result in source data |
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| 51 | #------------------------------------------------------------------------------- |
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| 52 | |
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| 53 | # filenames |
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| 54 | on_offshore25_dem_name = project_slide.on_offshore25_dem_name |
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| 55 | on_offshore100_dem_name = project_slide.on_offshore100_dem_name |
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| 56 | nsw_dem_name = project_slide.nsw_dem_name |
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| 57 | meshname = project_slide.meshname+'.msh' |
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| 58 | |
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| 59 | # creates DEM from asc data |
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| 60 | convert_dem_from_ascii2netcdf(on_offshore25_dem_name, use_cache=True, verbose=True) |
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| 61 | convert_dem_from_ascii2netcdf(on_offshore100_dem_name, use_cache=True, verbose=True) |
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| 62 | convert_dem_from_ascii2netcdf(nsw_dem_name, use_cache=True, verbose=True) |
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| 63 | |
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| 64 | #creates pts file for onshore DEM |
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| 65 | dem2pts(on_offshore25_dem_name, |
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| 66 | easting_min=project_slide.eastingmin25, |
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| 67 | easting_max=project_slide.eastingmax25, |
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| 68 | northing_min=project_slide.northingmin25, |
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| 69 | northing_max= project_slide.northingmax25, |
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| 70 | use_cache=True, verbose=True) |
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| 71 | dem2pts(on_offshore100_dem_name, |
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| 72 | easting_min=project_slide.eastingmin100, |
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| 73 | easting_max=project_slide.eastingmax100, |
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| 74 | northing_min=project_slide.northingmin100, |
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| 75 | northing_max= project_slide.northingmax100, |
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| 76 | use_cache=True, verbose=True) |
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| 77 | dem2pts(nsw_dem_name, |
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| 78 | easting_min=project_slide.eastingmin_nsw, |
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| 79 | easting_max=project_slide.eastingmax_nsw, |
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| 80 | northing_min=project_slide.northingmin_nsw, |
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| 81 | northing_max= project_slide.northingmax_nsw, |
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| 82 | use_cache=True, verbose=True) |
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| 83 | |
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| 84 | print 'create offshore' |
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| 85 | G11 = Geospatial_data(file_name = project_slide.offshore_dem_name1 + '.xya')+\ |
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| 86 | Geospatial_data(file_name = project_slide.offshore_dem_name2 + '.xya')+\ |
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| 87 | Geospatial_data(file_name = project_slide.offshore_dem_name3 + '.xya') |
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| 88 | G12 = Geospatial_data(file_name = project_slide.offshore_dem_name4 + '.xya')+\ |
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| 89 | Geospatial_data(file_name = project_slide.offshore_dem_name5 + '.xya')+\ |
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| 90 | Geospatial_data(file_name = project_slide.offshore_dem_name6 + '.xya')+\ |
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| 91 | Geospatial_data(file_name = project_slide.offshore_dem_name7 + '.xya')+\ |
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| 92 | Geospatial_data(file_name = project_slide.offshore_dem_name8 + '.xya')+\ |
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| 93 | Geospatial_data(file_name = project_slide.offshore_dem_name9 + '.xya') |
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| 94 | print 'create onshore' |
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| 95 | G2 = Geospatial_data(file_name = project_slide.on_offshore25_dem_name + '.pts') |
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| 96 | G3 = Geospatial_data(file_name = project_slide.on_offshore100_dem_name + '.pts') |
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| 97 | G4 = Geospatial_data(file_name = project_slide.nsw_dem_name + '.pts') |
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| 98 | print 'add' |
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| 99 | G = G11.clip(Geospatial_data(project_slide.poly_surveyclip)) +\ |
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| 100 | G12.clip(Geospatial_data(project_slide.polyAll)) +\ |
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| 101 | G2.clip(Geospatial_data(project_slide.poly_25mclip)) +\ |
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| 102 | G3.clip(Geospatial_data(project_slide.poly_origsyd)) +\ |
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| 103 | (G4.clip(Geospatial_data(project_slide.polyAll))).clip_outside(Geospatial_data(project_slide.poly_surveyclip)).clip_outside(Geospatial_data(project_slide.poly_origsyd)) |
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| 104 | print 'export points' |
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| 105 | G.export_points_file(project_slide.combined_dem_name + '.pts') |
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| 106 | #G.export_points_file(project_slide.combined_dem_name + '.xya') |
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| 107 | |
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| 108 | #---------------------------------------------------------------------------- |
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| 109 | # Create the triangular mesh based on overall clipping polygon with a tagged |
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| 110 | # boundary and interior regions defined in project_slide.py along with |
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| 111 | # resolutions (maximal area of per triangle) for each polygon |
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| 112 | #------------------------------------------------------------------------------- |
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| 113 | |
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| 114 | from anuga.pmesh.mesh_interface import create_mesh_from_regions |
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| 115 | remainder_res = 1000000. |
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| 116 | local_res = 50000. |
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| 117 | coast_res = 50000. |
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| 118 | interior_regions = [[project_slide.poly_syd1, local_res], |
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| 119 | [project_slide.poly_coast, coast_res]] |
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| 120 | |
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| 121 | from caching import cache |
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| 122 | _ = cache(create_mesh_from_regions, |
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| 123 | project_slide.polyAll, |
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| 124 | {'boundary_tags': {'e0': [0], 'e1': [1], 'e2': [2], |
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| 125 | 'e3': [3], 'e4':[4]}, |
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| 126 | 'maximum_triangle_area': remainder_res, |
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| 127 | 'filename': meshname, |
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| 128 | 'interior_regions': interior_regions}, |
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| 129 | verbose = True, evaluate=False) |
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| 130 | print 'created mesh' |
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| 131 | |
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| 132 | #------------------------------------------------------------------------------- |
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| 133 | # Setup computational domain |
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| 134 | #------------------------------------------------------------------------------- |
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| 135 | domain = Domain(meshname, use_cache = True, verbose = True) |
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| 136 | |
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| 137 | print 'Number of triangles = ', len(domain) |
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| 138 | print 'The extent is ', domain.get_extent() |
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| 139 | print domain.statistics() |
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| 140 | |
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| 141 | domain.set_name(project_slide.basename) |
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| 142 | domain.set_datadir(project_slide.outputtimedir) |
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| 143 | domain.set_quantities_to_be_stored(['stage', 'xmomentum', 'ymomentum']) |
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| 144 | domain.set_minimum_storable_height(0.01) |
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| 145 | |
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| 146 | #------------------------------------------------------------------------------- |
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| 147 | # Setup initial conditions |
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| 148 | #------------------------------------------------------------------------------- |
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| 149 | |
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| 150 | tide = 0.0 |
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| 151 | domain.set_quantity('stage', tide) |
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| 152 | domain.set_quantity('friction', 0.0) |
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| 153 | domain.set_quantity('elevation', |
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| 154 | filename = project_slide.combined_dem_name + '.pts', |
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| 155 | use_cache = True, |
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| 156 | verbose = True, |
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| 157 | alpha = 0.1 |
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| 158 | ) |
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| 159 | |
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| 160 | #------------------------------------------------------------------------------- |
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| 161 | # Set up scenario (tsunami_source is a callable object used with set_quantity) |
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| 162 | #------------------------------------------------------------------------------- |
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| 163 | from eqf import earthquake_tsunami |
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| 164 | |
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| 165 | tsunami_source = earthquake_tsunami(length=1000.0, |
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| 166 | width=500., |
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| 167 | strike=10., |
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| 168 | dip=1.0, |
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| 169 | x0=project_slide.slide_origin_shovel_b[0], |
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| 170 | y0=project_slide.slide_origin_shovel_b[1], |
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| 171 | domain=domain, |
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| 172 | verbose=True) |
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| 173 | |
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| 174 | ##from smf import slide_tsunami |
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| 175 | ##tsunami_source = slide_tsunami(length=project_slide.shovel_length, |
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| 176 | ## width=project_slide.shovel_width, |
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| 177 | ## depth=project_slide.shovel_depth, |
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| 178 | ## slope=project_slide.shovel_slope, |
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| 179 | ## thickness=project_slide.shovel_thickness, |
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| 180 | ## x0=project_slide.slide_origin_shovel_b[0], |
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| 181 | ## y0=project_slide.slide_origin_shovel_b[1], |
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| 182 | ## alpha=project_slide.shovel_alpha, |
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| 183 | ## domain=domain) |
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| 184 | |
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| 185 | #------------------------------------------------------------------------------- |
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| 186 | # Setup boundary conditions |
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| 187 | #------------------------------------------------------------------------------- |
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| 188 | print 'Available boundary tags', domain.get_boundary_tags() |
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| 189 | |
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| 190 | Br = Reflective_boundary(domain) |
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| 191 | Bd = Dirichlet_boundary([tide,0,0]) |
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| 192 | |
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| 193 | domain.set_boundary( {'e0': Bd, 'e1': Bd, 'e2': Bd, 'e3': Bd, 'e4': Bd} ) |
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| 194 | |
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| 195 | |
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| 196 | #------------------------------------------------------------------------------- |
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| 197 | # Evolve system through time |
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| 198 | #------------------------------------------------------------------------------- |
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| 199 | import time |
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| 200 | from Numeric import allclose |
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| 201 | from anuga.abstract_2d_finite_volumes.quantity import Quantity |
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| 202 | |
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| 203 | t0 = time.time() |
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| 204 | |
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| 205 | for t in domain.evolve(yieldstep = 30, finaltime = 5000): |
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| 206 | domain.write_time() |
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| 207 | domain.write_boundary_statistics(tags = 'e2') |
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| 208 | stagestep = domain.get_quantity('stage') |
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| 209 | |
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| 210 | if allclose(t, 30): |
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| 211 | slide = Quantity(domain) |
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| 212 | slide.set_values(tsunami_source) |
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| 213 | domain.set_quantity('stage', slide + stagestep) |
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| 214 | |
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| 215 | print 'That took %.2f seconds' %(time.time()-t0) |
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| 216 | |
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| 217 | print 'finished' |
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