"""Script for running a tsunami inundation scenario for Cairns, QLD Australia. Source data such as elevation and boundary data is assumed to be available in directories specified by project.py The output sww file is stored in directory named after the scenario, i.e slide or fixed_wave. The scenario is defined by a triangular mesh created from project.polygon, the elevation data and a tsunami wave generated by a submarine mass failure. Geoscience Australia, 2004-present """ #------------------------------------------------------------------------------ # Import necessary modules #------------------------------------------------------------------------------ # Standard modules import os import time import sys # Related major packages import anuga # Application specific imports import project # Definition of file names and polygons #------------------------------------------------------------------------------ # Preparation of topographic data # Convert ASC 2 DEM 2 PTS using source data and store result in source data #------------------------------------------------------------------------------ # Create DEM from asc data anuga.asc2dem(project.demname, use_cache=True, verbose=True) # Create pts file for onshore DEM anuga.dem2pts(project.demname, use_cache=True, verbose=True) #------------------------------------------------------------------------------ # Create the triangular mesh and domain based on # overall clipping polygon with a tagged # boundary and interior regions as defined in project.py #------------------------------------------------------------------------------ domain = anuga.create_domain_from_regions(project.bounding_polygon, boundary_tags={'top': [0], 'ocean_east': [1], 'bottom': [2], 'onshore': [3]}, maximum_triangle_area=project.default_res, mesh_filename=project.meshname, interior_regions=project.interior_regions, use_cache=True, verbose=True) # Print some stats about mesh and domain print 'Number of triangles = ', len(domain) print 'The extent is ', domain.get_extent() print domain.statistics() #------------------------------------------------------------------------------ # Setup parameters of computational domain #------------------------------------------------------------------------------ domain.set_name('cairns_' + project.scenario) # Name of sww file domain.set_datadir('.') # Store sww output here domain.set_minimum_storable_height(0.01) # Store only depth > 1cm #------------------------------------------------------------------------------ # Setup initial conditions #------------------------------------------------------------------------------ tide = 0.0 domain.set_quantity('stage', tide) domain.set_quantity('friction', 0.0) domain.set_quantity('elevation', filename=project.demname + '.pts', use_cache=True, verbose=True, alpha=0.1) #------------------------------------------------------------------------------ # Setup information for slide scenario (to be applied 1 min into simulation #------------------------------------------------------------------------------ if project.scenario == 'slide': # Function for submarine slide tsunami_source = anuga.slide_tsunami(length=35000.0, depth=project.slide_depth, slope=6.0, thickness=500.0, x0=project.slide_origin[0], y0=project.slide_origin[1], alpha=0.0, domain=domain, verbose=True) #------------------------------------------------------------------------------ # Setup boundary conditions #------------------------------------------------------------------------------ print 'Available boundary tags', domain.get_boundary_tags() Bd = anuga.Dirichlet_boundary([tide, 0, 0]) # Mean water level Bs = anuga.Transmissive_stage_zero_momentum_boundary(domain) # Neutral boundary if project.scenario == 'fixed_wave': # Huge 50m wave starting after 60 seconds and lasting 1 hour. Bw = anuga.Time_boundary(domain=domain, function=lambda t: [(60