| 1 | """Script for running a tsunami inundation scenario for Broome, WA, 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.py |
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| 5 | The output sww file is stored in project.outputtimedir |
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| 6 | |
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| 7 | The scenario is defined by a triangular mesh created from project.polygon, |
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| 8 | the elevation data and a tsunami wave generated by MOST. |
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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 import mkdir, access, F_OK |
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| 22 | import sys |
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| 23 | |
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| 24 | # Related major packages |
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| 25 | from anuga.shallow_water import Domain, Reflective_boundary, \ |
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| 26 | Dirichlet_boundary, Time_boundary, File_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.abstract_2d_finite_volumes.combine_pts import combine_rectangular_points_files |
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| 29 | from anuga.geospatial_data.geospatial_data import * |
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| 30 | from anuga.abstract_2d_finite_volumes.util import Screen_Catcher |
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| 31 | |
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| 32 | # Application specific imports |
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| 33 | import project # Definition of file names and polygons |
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| 34 | |
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| 35 | #------------------------------------------------------------------------------- |
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| 36 | # Copy scripts to time stamped output directory and capture screen |
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| 37 | # output to file |
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| 38 | #------------------------------------------------------------------------------- |
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| 39 | |
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| 40 | # creates copy of code in output dir if dir doesn't exist |
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| 41 | if access(project.outputtimedir,F_OK) == 0 : |
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| 42 | mkdir (project.outputtimedir) |
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| 43 | copy (project.codedirname, project.outputtimedir + project.codename) |
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| 44 | copy (project.codedir + 'run_broome.py', project.outputtimedir + 'run_broome.py') |
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| 45 | print'output dir', project.outputtimedir |
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| 46 | |
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| 47 | #normal screen output is stored in |
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| 48 | screen_output_name = project.outputtimedir + "screen_output.txt" |
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| 49 | screen_error_name = project.outputtimedir + "screen_error.txt" |
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| 50 | |
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| 51 | #used to catch screen output to file |
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| 52 | sys.stdout = Screen_Catcher(screen_output_name) |
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| 53 | sys.stderr = Screen_Catcher(screen_error_name) |
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| 54 | |
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| 55 | print 'USER: ', project.user |
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| 56 | |
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| 57 | #------------------------------------------------------------------------------- |
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| 58 | # Preparation of topographic data |
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| 59 | # |
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| 60 | # Convert ASC 2 DEM 2 PTS using source data and store result in source data |
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| 61 | #------------------------------------------------------------------------------- |
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| 62 | |
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| 63 | # filenames |
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| 64 | onshore_dem_name = project.onshore_dem_name |
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| 65 | coast_points = project.coast_dem_name |
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| 66 | meshname = project.meshname+'.msh' |
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| 67 | |
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| 68 | # creates DEM from asc data |
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| 69 | convert_dem_from_ascii2netcdf(onshore_dem_name, use_cache=True, verbose=True) |
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| 70 | |
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| 71 | #creates pts file for onshore DEM |
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| 72 | dem2pts(onshore_dem_name, use_cache=True, verbose=True) |
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| 73 | |
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| 74 | print 'create offshore' |
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| 75 | G1 = Geospatial_data(file_name = project.offshore_dem_name1 + '.xya')+\ |
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| 76 | Geospatial_data(file_name = project.offshore_dem_name2 + '.xya')+\ |
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| 77 | Geospatial_data(file_name = project.offshore_dem_name3 + '.xya')+\ |
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| 78 | Geospatial_data(file_name = project.offshore_dem_name4 + '.xya')+\ |
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| 79 | Geospatial_data(file_name = project.offshore_dem_name5 + '.xya')+\ |
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| 80 | Geospatial_data(file_name = project.offshore_dem_name6 + '.xya')+\ |
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| 81 | Geospatial_data(file_name = project.offshore_dem_name7 + '.xya')+\ |
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| 82 | Geospatial_data(file_name = project.offshore_dem_name8 + '.xya')+\ |
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| 83 | Geospatial_data(file_name = project.offshore_dem_name9 + '.xya')+\ |
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| 84 | Geospatial_data(file_name = project.offshore_dem_name10 + '.xya')+\ |
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| 85 | Geospatial_data(file_name = project.offshore_dem_name11 + '.xya')+\ |
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| 86 | Geospatial_data(file_name = project.offshore_dem_name12 + '.xya')+\ |
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| 87 | Geospatial_data(file_name = project.offshore_dem_name13 + '.xya')+\ |
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| 88 | Geospatial_data(file_name = project.offshore_dem_name14 + '.xya')+\ |
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| 89 | Geospatial_data(file_name = project.offshore_dem_name15 + '.xya')+\ |
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| 90 | Geospatial_data(file_name = project.offshore_dem_name16 + '.xya')+\ |
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| 91 | Geospatial_data(file_name = project.offshore_dem_name17 + '.xya')+\ |
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| 92 | Geospatial_data(file_name = project.offshore_dem_name18 + '.xya')+\ |
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| 93 | Geospatial_data(file_name = project.offshore_dem_name19 + '.xya')+\ |
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| 94 | Geospatial_data(file_name = project.offshore_dem_name20 + '.xya')+\ |
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| 95 | Geospatial_data(file_name = project.offshore_dem_name21 + '.xya')+\ |
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| 96 | Geospatial_data(file_name = project.offshore_dem_name22 + '.xya') |
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| 97 | print 'create onshore' |
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| 98 | G2 = Geospatial_data(file_name = project.onshore_dem_name + '.pts') |
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| 99 | print 'create coast' |
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| 100 | G3 = Geospatial_data(file_name = project.coast_dem_name + '.xya') |
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| 101 | print 'add' |
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| 102 | G = G1 + G2 + G3 |
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| 103 | print 'export points' |
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| 104 | G.export_points_file(project.combined_dem_name + '.pts') |
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| 105 | |
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| 106 | #---------------------------------------------------------------------------- |
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| 107 | # Create the triangular mesh based on overall clipping polygon with a tagged |
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| 108 | # boundary and interior regions defined in project.py along with |
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| 109 | # resolutions (maximal area of per triangle) for each polygon |
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| 110 | #------------------------------------------------------------------------------- |
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| 111 | |
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| 112 | from anuga.pmesh.mesh_interface import create_mesh_from_regions |
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| 113 | remainder_res = 750000 |
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| 114 | local_res = 25000 |
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| 115 | broome_res = 5000 |
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| 116 | coast_res = 500 |
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| 117 | beach_res = 500 |
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| 118 | interior_regions = [[project.poly_broome1, local_res], |
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| 119 | [project.poly_broome2, broome_res], |
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| 120 | [project.poly_broome3, coast_res], |
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| 121 | [project.poly_broome4, beach_res]] |
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| 122 | |
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| 123 | from project import number_mesh_triangles |
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| 124 | print 'estimate of number of triangles', \ |
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| 125 | number_mesh_triangles(interior_regions, project.polyAll, remainder_res) |
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| 126 | |
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| 127 | from caching import cache |
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| 128 | _ = cache(create_mesh_from_regions, |
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| 129 | project.polyAll, |
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| 130 | {'boundary_tags': {'e0': [0], 'e1': [1], 'e2': [2], |
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| 131 | 'e3': [3], 'e4':[4], 'e5': [5], |
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| 132 | 'e6': [6]}, |
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| 133 | 'maximum_triangle_area': remainder_res, |
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| 134 | 'filename': meshname, |
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| 135 | 'interior_regions': interior_regions}, |
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| 136 | verbose = True, evaluate=False) |
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| 137 | print 'created mesh' |
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| 138 | |
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| 139 | #------------------------------------------------------------------------------- |
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| 140 | # Setup computational domain |
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| 141 | #------------------------------------------------------------------------------- |
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| 142 | domain = Domain(meshname, use_cache = True, verbose = True) |
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| 143 | |
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| 144 | print 'Number of triangles = ', len(domain) |
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| 145 | print 'The extent is ', domain.get_extent() |
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| 146 | print domain.statistics() |
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| 147 | |
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| 148 | domain.set_name(project.basename) |
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| 149 | domain.set_datadir(project.outputtimedir) |
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| 150 | domain.set_quantities_to_be_stored(['stage', 'xmomentum', 'ymomentum']) |
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| 151 | domain.set_minimum_storable_height(0.01) |
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| 152 | |
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| 153 | #------------------------------------------------------------------------------- |
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| 154 | # Setup initial conditions |
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| 155 | #------------------------------------------------------------------------------- |
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| 156 | |
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| 157 | tide = 0.0 |
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| 158 | domain.set_quantity('stage', tide) |
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| 159 | domain.set_quantity('friction', 0.0) |
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| 160 | domain.set_quantity('elevation', |
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| 161 | filename = project.combined_dem_name + '.pts', |
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| 162 | use_cache = True, |
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| 163 | verbose = True, |
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| 164 | alpha = 0.1 |
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| 165 | ) |
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| 166 | |
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| 167 | #------------------------------------------------------------------------------- |
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| 168 | # Setup boundary conditions |
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| 169 | #------------------------------------------------------------------------------- |
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| 170 | ''' |
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| 171 | print 'start urs2sww' |
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| 172 | print '', project.boundary_basename |
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| 173 | from anuga.shallow_water.data_manager import urs2sww |
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| 174 | |
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| 175 | south = project.south |
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| 176 | north = project.north |
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| 177 | west = project.west |
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| 178 | east = project.east |
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| 179 | |
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| 180 | #note only need to do when an SWW file for the MOST boundary doesn't exist |
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| 181 | cache(urs2sww, |
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| 182 | (source_dir + project.boundary_basename, |
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| 183 | source_dir + project.boundary_basename), |
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| 184 | {'verbose': True, |
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| 185 | 'minlat': south, |
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| 186 | 'maxlat': north, |
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| 187 | 'minlon': west, |
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| 188 | 'maxlon': east, |
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| 189 | #'origin': domain.geo_reference.get_origin(), |
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| 190 | 'mean_stage': tide, |
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| 191 | 'zscale': 1, #Enhance tsunami |
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| 192 | 'fail_on_NaN': False, |
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| 193 | 'inverted_bathymetry': True}, |
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| 194 | #evaluate = True, |
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| 195 | verbose = True, |
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| 196 | dependencies = source_dir + project.boundary_basename + '.sww') |
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| 197 | |
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| 198 | ''' |
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| 199 | print 'Available boundary tags', domain.get_boundary_tags() |
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| 200 | |
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| 201 | #Bf = File_boundary(source_dir + project.boundary_basename + '.sww', |
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| 202 | # domain, verbose = True) |
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| 203 | Br = Reflective_boundary(domain) |
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| 204 | Bd = Dirichlet_boundary([tide,0,0]) |
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| 205 | |
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| 206 | # 7 min square wave starting at 1 min, 6m high |
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| 207 | Bw = Time_boundary(domain = domain, |
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| 208 | f=lambda t: [(60<t<480)*10, 0, 0]) |
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| 209 | |
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| 210 | domain.set_boundary( {'e0': Bd, 'e1': Bd, 'e2': Bd, 'e3': Bd, 'e4': Bd, |
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| 211 | 'e5': Bd, 'e6': Bd} ) |
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| 212 | |
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| 213 | |
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| 214 | #------------------------------------------------------------------------------- |
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| 215 | # Evolve system through time |
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| 216 | #------------------------------------------------------------------------------- |
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| 217 | import time |
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| 218 | t0 = time.time() |
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| 219 | |
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| 220 | for t in domain.evolve(yieldstep = 240, finaltime = 480): |
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| 221 | domain.write_time() |
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| 222 | domain.write_boundary_statistics(tags = 'e14') |
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| 223 | |
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| 224 | print 'That took %.2f seconds' %(time.time()-t0) |
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| 225 | |
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| 226 | print 'finished' |
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