| 1 | #------------------------------------------------------------------------------# |
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| 2 | # This file is part of the PALM model system. |
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| 3 | # |
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| 4 | # PALM is free software: you can redistribute it and/or modify it under the |
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| 5 | # terms of the GNU General Public License as published by the Free Software |
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| 6 | # Foundation, either version 3 of the License, or (at your option) any later |
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| 7 | # version. |
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| 8 | # |
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| 9 | # PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 10 | # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 11 | # A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 12 | # |
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| 13 | # You should have received a copy of the GNU General Public License along with |
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| 14 | # PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 15 | # |
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| 16 | # Copyright 1997-2019 Leibniz Universitaet Hannover |
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| 17 | #------------------------------------------------------------------------------# |
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| 18 | |
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| 19 | import math |
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| 20 | from netCDF4 import Dataset |
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| 21 | import numpy as np |
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| 22 | import datetime |
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| 23 | |
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| 24 | |
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| 25 | class StaticDriver: |
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| 26 | """ This is an example script to generate static drivers for PALM. |
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| 27 | |
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| 28 | You can use it as a starting point for creating your setup specific |
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| 29 | driver. |
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| 30 | """ |
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| 31 | |
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| 32 | |
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| 33 | def __init__(self): |
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| 34 | """ Open the static driver as NetCDF4 file. Here, you have to give the |
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| 35 | full path to the static driver that shall be created. Existing file |
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| 36 | with same name is deleted. |
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| 37 | """ |
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| 38 | print('Opening file...') |
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| 39 | self.nc_file = Dataset('path/to/file.nc', 'w', format='NETCDF4') |
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| 40 | |
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| 41 | |
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| 42 | def write_global_attributes(self): |
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| 43 | """ Write global attributes to static driver. """ |
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| 44 | print("Writing global attributes...") |
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| 45 | |
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| 46 | # mandatory global attributes |
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| 47 | self.nc_file.origin_lon = 55.0 # used to initialize coriolis parameter |
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| 48 | self.nc_file.origin_lat = 0.0 # (overwrite initialization_parameters) |
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| 49 | self.nc_file.origin_time = '2000-06-21 12:00:00 +00' |
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| 50 | self.nc_file.origin_x = 308124 |
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| 51 | self.nc_file.origin_y = 6098908 |
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| 52 | self.nc_file.origin_z = 0.0 |
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| 53 | self.nc_file.rotation_angle = 0.0 |
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| 54 | |
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| 55 | # optional global attributes |
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| 56 | self.nc_file.author = 'Your Name' |
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| 57 | self.nc_file.comment = 'Miscellaneous information about the data ' \ |
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| 58 | 'or methods to produce it.' |
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| 59 | self.nc_file.creation_date = str(datetime.datetime.now()) |
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| 60 | self.nc_file.institution = 'Institut of Meteorology and Climatology,' \ |
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| 61 | 'Leibniz University Hannover' |
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| 62 | self.nc_file.history = '' |
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| 63 | self.nc_file.palm_revision = '' |
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| 64 | self.nc_file.title = 'Static driver for some arbitrary PALM setup' |
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| 65 | |
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| 66 | |
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| 67 | def define_dimensions(self): |
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| 68 | """ Set dimensions on which variables are defined. """ |
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| 69 | print("Writing dimensions...") |
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| 70 | |
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| 71 | # specify general grid parameters |
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| 72 | # these values must equal those set in the initialization_parameters |
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| 73 | self.nx = 39 |
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| 74 | self.ny = 39 |
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| 75 | self.nz = 40 |
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| 76 | dx = 50 |
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| 77 | dy = 50 |
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| 78 | dz = 50 |
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| 79 | |
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| 80 | # create soil grid (only relevant if land surface module is used) |
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| 81 | dz_soil = np.array((0.01, 0.02, 0.04, 0.06, 0.14, 0.26, 0.54, 1.86)) |
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| 82 | zsoil_fullLayers = np.zeros_like(dz_soil) |
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| 83 | zsoil_fullLayers = np.around([np.sum(dz_soil[:zs]) for zs in np.arange(1,len(dz_soil)+1)],2) |
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| 84 | zsoil_array = zsoil_fullLayers - dz_soil/2. |
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| 85 | |
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| 86 | # create plant canopy grid (only relevant of plant canopy module is used) |
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| 87 | zlad_array = np.arange(0,10,1) |
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| 88 | |
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| 89 | # mandatory dimensions |
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| 90 | self.nc_file.createDimension('x' ,self.nx+1) |
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| 91 | self.x = self.nc_file.createVariable('x', 'f8', ('x',)) |
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| 92 | self.x.units = 'm' |
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| 93 | self.x.standard_name = 'x coordinate of cell centers' |
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| 94 | self.x[:] = np.arange(0,(self.nx+1)*dx,dx) |
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| 95 | |
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| 96 | self.nc_file.createDimension('xu', self.nx) |
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| 97 | self.xu = self.nc_file.createVariable('xu', 'f8', ('xu',)) |
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| 98 | self.xu.units = 'm' |
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| 99 | self.xu.standard_name = 'x coordinate of cell edges' |
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| 100 | self.xu[:] = np.arange(dx/2.,self.nx*dx,dx) |
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| 101 | |
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| 102 | self.nc_file.createDimension('y', self.ny+1) |
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| 103 | self.y = self.nc_file.createVariable('y', 'f8', ('y',)) |
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| 104 | self.y.units = 'm' |
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| 105 | self.y.standard_name = 'y coordinate of cell centers' |
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| 106 | self.y[:] = np.arange(0,(self.ny+1)*dy,dy) |
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| 107 | |
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| 108 | self.nc_file.createDimension('yv', self.ny) |
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| 109 | self.yv = self.nc_file.createVariable('yv', 'f8', ('yv',)) |
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| 110 | self.yv.units = 'm' |
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| 111 | self.yv.standard_name = 'y coordinate of cell edges' |
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| 112 | self.yv[:] = np.arange(dy/2.,self.ny*dy,dy) |
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| 113 | |
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| 114 | # if your simulation uses a stretched vertical grid, you need to |
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| 115 | # modify the z and zw coordinates, |
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| 116 | # e.g. z_array = (...) and zw_array = (...) |
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| 117 | z_array = np.append(0, np.arange(dz/2,(self.nz+1)*dz,dz)) |
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| 118 | self.nc_file.createDimension('z',self.nz+2) |
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| 119 | self.z = self.nc_file.createVariable('z', 'f8', ('z',)) |
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| 120 | self.z.units = 'm' |
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| 121 | self.z.standard_name = 'z coordinate of cell centers' |
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| 122 | self.z[:] = z_array |
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| 123 | |
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| 124 | zw_array = np.arange(0,(self.nz+2)*dz,dz) |
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| 125 | self.nc_file.createDimension('zw', self.nz+2) |
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| 126 | self.zw = self.nc_file.createVariable('zw', 'f8', ('zw',)) |
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| 127 | self.zw.units = 'm' |
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| 128 | self.zw.standard_name = 'z coordinate of cell edges' |
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| 129 | self.zw[:] = zw_array |
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| 130 | |
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| 131 | # optional dimensions, uncomment if needed |
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| 132 | #self.nc_file.createDimension('zsoil', len(zsoil_array)) |
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| 133 | #self.zsoil = self.nc_file.createVariable('zsoil', 'f8', ('zsoil',)) |
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| 134 | #self.zsoil.positive = 'down' |
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| 135 | #self.zsoil.units = 'm' |
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| 136 | #self.zsoil.standard_name = 'depth below land' |
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| 137 | #self.zsoil[:] = zsoil_array |
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| 138 | |
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| 139 | #self.nc_file.createDimension('zlad', len(zlad_array)) |
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| 140 | #self.zlad = self.nc_file.createVariable('zlad', 'f8', ('zlad',)) |
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| 141 | #self.zlad.units = 'm' |
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| 142 | #self.zlad.standard_name = 'z coordinate of resolved plant canopy' |
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| 143 | #self.zlad[:] = zlad_array |
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| 144 | |
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| 145 | #self.nc_file.createDimension('nalbedo_pars', 3) |
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| 146 | #self.nalbedo_pars = self.nc_file.createVariable( |
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| 147 | #'nalbedo_pars', 'i1', ('nalbedo_pars',)) |
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| 148 | #self.nalbedo_pars[:] = np.arange(0,3) |
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| 149 | |
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| 150 | #self.nc_file.createDimension('nbuilding_pars', 46) |
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| 151 | #self.nbuilding_pars = self.nc_file.createVariable( |
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| 152 | #'nbuilding_pars', 'i4', ('nbuilding_pars',)) |
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| 153 | #self.nbuilding_pars[:] = np.arange(0,46) |
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| 154 | |
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| 155 | #self.nc_file.createDimension('nsoil_pars', 8) |
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| 156 | #self.nsoil_pars = self.nc_file.createVariable( |
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| 157 | #'nsoil_pars', 'i1', ('nsoil_pars',)) |
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| 158 | #self.nsoil_pars[:] = np.arange(0,8) |
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| 159 | |
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| 160 | #self.nc_file.createDimension('nsurface_fraction', 3) |
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| 161 | #self.nsurface_fraction = self.nc_file.createVariable( |
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| 162 | #'nsurface_fraction', 'i1', ('nsurface_fraction',)) |
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| 163 | #self.nsurface_fraction[:] = np.arange(0,3) |
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| 164 | |
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| 165 | #self.nc_file.createDimension('nvegetation_pars', 12) |
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| 166 | #self.nvegetation_pars = self.nc_file.createVariable( |
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| 167 | #'nvegetation_pars', 'i1', ('nvegetation_pars',)) |
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| 168 | #self.nvegetation_pars[:] = np.arange(0,12) |
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| 169 | |
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| 170 | #self.nc_file.createDimension('npavement_pars', 4) |
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| 171 | #self.npavement_pars = self.nc_file.createVariable( |
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| 172 | #'npavement_pars', 'i1', ('npavement_pars',)) |
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| 173 | #self.npavement_pars[:] = np.arange(0,4) |
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| 174 | |
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| 175 | #self.nc_file.createDimension('npavement_subsurface_pars', 2) |
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| 176 | #self.npavement_subsurface_pars = self.nc_file.createVariable( |
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| 177 | #'npavement_subsurface_pars', 'i1', ('npavement_subsurface_pars',)) |
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| 178 | #self.npavement_subsurface_pars[:] = np.arange(0,2) |
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| 179 | |
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| 180 | #self.nc_file.createDimension('nwater_pars', 6) |
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| 181 | #self.nwater_pars = self.nc_file.createVariable( |
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| 182 | #'nwater_pars', 'i1', ('nwater_pars',)) |
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| 183 | #self.nwater_pars[:] = np.arange(0,6) |
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| 184 | |
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| 185 | |
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| 186 | def add_variables(self): |
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| 187 | """ Uncomment variables below as you like. |
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| 188 | |
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| 189 | Be aware that some variables depend on others. For a description of |
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| 190 | each variable, please have a look at the documentation at |
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| 191 | palm.muk.uni-hannover.de/trac/wiki/doc/app/iofiles/pids/static |
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| 192 | |
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| 193 | An example of how you modify the variables is given below: |
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| 194 | |
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| 195 | building_2d_array = np.ones((self.ny+1,self.nx+1)) * -9999.9 |
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| 196 | south_wall, north_wall, left_wall, right_wall = 20, 25, 20, 25 |
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| 197 | building_2d_array[south_wall:north_wall,left_wall:right_wall] = 50 |
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| 198 | nc_buildings_2d = self.nc_file.createVariable( |
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| 199 | 'buildings_2d', 'f4', ('y','x'),fill_value=-9999.9) |
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| 200 | nc_buildings_2d.lod = 1 |
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| 201 | nc_buildings_2d[:,:] = building_2d_array |
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| 202 | """ |
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| 203 | print("Writing variables...") |
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| 204 | |
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| 205 | ## topography variables |
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| 206 | #nc_buildings_2d = self.nc_file.createVariable( |
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| 207 | #'buildings_2d', 'f4', ('y','x'), fill_value=-9999.9) |
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| 208 | #nc_buildings_2d.lod = 1 |
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| 209 | #nc_buildings_2d[:,:] = -9999.9 |
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| 210 | |
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| 211 | #nc_buildings_3d = self.nc_file.createVariable( |
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| 212 | #'buildings_3d', 'i1', ('z','y','x'),fill_value=-127) |
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| 213 | #nc_buildings_3d.lod = 2 |
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| 214 | #nc_buildings_3d[:,:,:] = -127 |
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| 215 | |
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| 216 | #nc_building_id = self.nc_file.createVariable( |
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| 217 | #'building_id', 'i1', ('y','x'), fill_value=-127) |
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| 218 | #nc_building_id[:,:] = -127 |
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| 219 | |
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| 220 | #nc_zt = self.nc_file.createVariable( |
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| 221 | #'zt', 'f4', ('y','x'), fill_value=-9999.9) |
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| 222 | #nc_zt.long_name = 'orography' |
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| 223 | #nc_zt.units = 'm' |
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| 224 | #nc_zt[:,:] = -9999.9 |
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| 225 | |
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| 226 | ## surface variables |
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| 227 | #nc_albedo_pars = self.nc_file.createVariable( |
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| 228 | #'albedo_pars', 'f4', ('nalbedo_pars','y','x'), fill_value=-9999.9) |
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| 229 | #nc_albedo_pars.long_name = 'albedo parameters' |
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| 230 | #nc_albedo_pars[:,:,:] = -9999.9 |
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| 231 | |
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| 232 | #nc_albedo_type = self.nc_file.createVariable( |
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| 233 | #'albedo_type', 'f4', ('y','x'), fill_value=-9999.9) |
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| 234 | #nc_albedo_type[:,:] = -9999.9 |
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| 235 | |
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| 236 | #nc_building_pars = self.nc_file.createVariable( |
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| 237 | #'building_pars', 'f4', ('nbuilding_pars','y','x'), fill_value=-9999.9) |
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| 238 | #nc_building_pars.long_name = 'building parameters' |
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| 239 | #nc_building_pars[:,:,:] = -9999.9 |
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| 240 | |
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| 241 | #nc_building_type = self.nc_file.createVariable( |
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| 242 | #'building_type', 'i1', ('y','x'), fill_value=-127) |
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| 243 | #nc_building_type[:,:] = -127 |
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| 244 | |
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| 245 | #nc_pavement_pars = self.nc_file.createVariable( |
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| 246 | #'pavement_pars', 'f4', ('npavement_pars','y','x'), fill_value=-9999.9) |
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| 247 | #nc_pavement_pars[:,:,:] = -9999.9 |
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| 248 | |
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| 249 | #nc_pavement_subsurface_pars = self.nc_file.createVariable( |
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| 250 | #'pavement_subsurface_pars', 'i1', |
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| 251 | #('npavement_subsurface_pars','zsoil','y','x'), fill_value=-9999.9) |
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| 252 | #nc_pavement_subsurface_pars[:,:,:,:] = -9999.9 |
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| 253 | |
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| 254 | #nc_pavement_type = self.nc_file.createVariable( |
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| 255 | #'pavement_type', 'i1', ('y','x'), fill_value=-127) |
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| 256 | #nc_pavement_type[:,:] = -127 |
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| 257 | |
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| 258 | #nc_soil_pars = self.nc_file.createVariable( |
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| 259 | #'soil_pars', 'f', ('nsoil_pars','zsoil','y','x'), fill_value=-9999.9) |
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| 260 | #nc_soil_pars.long_name = 'soil parameters' |
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| 261 | #nc_soil_pars.lod = 2 # if set to 1, adjust dimensions of soil_pars |
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| 262 | #nc_soil_pars[:,:,:,:] = -9999.9 |
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| 263 | |
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| 264 | #nc_soil_type = self.nc_file.createVariable( |
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| 265 | #'soil_type', 'i1', ('zsoil','y','x'), fill_value=-127) |
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| 266 | #nc_soil_type.lod = 2 # if set to 1, adjust dimensions of soil_type |
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| 267 | #nc_soil_type[:,:,:] = -127 |
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| 268 | |
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| 269 | ## required, if several surface types are defined at the same location |
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| 270 | #nc_surface_fraction = self.nc_file.createVariable( |
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| 271 | #'surface_fraction', 'f', ('nsurface_fraction','y','x'), fill_value=-9999.9) |
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| 272 | #nc_surface_fraction[0,:,:] = -9999.9 # vegetation fraction |
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| 273 | #nc_surface_fraction[1,:,:] = -9999.9 # pavement fraction |
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| 274 | #nc_surface_fraction[2,:,:] = -9999.9 # water fraction |
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| 275 | |
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| 276 | #nc_vegetation_pars = self.nc_file.createVariable( |
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| 277 | #'vegetation_pars', 'f', ('nvegetation_pars','y','x'), fill_value=-9999.9) |
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| 278 | #nc_vegetation_pars.long_name = 'vegetation parameters' |
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| 279 | #nc_vegetation_pars[:,:,:] = -9999.9 |
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| 280 | |
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| 281 | #nc_vegetation_type = self.nc_file.createVariable( |
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| 282 | #'vegetation_type', 'i1', ('y','x'), fill_value=-127) |
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| 283 | #nc_vegetation_type[:,:] = -127 |
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| 284 | |
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| 285 | #nc_street_type = self.nc_file.createVariable( |
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| 286 | #'street_type', 'i1', ('y','x'), |
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| 287 | #fill_value=-127) |
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| 288 | #nc_street_type[:,:] = -127 |
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| 289 | |
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| 290 | #nc_water_pars = self.nc_file.createVariable( |
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| 291 | #'water_pars', 'i1', ('nwater_pars','y','x'), fill_value=-9999.9) |
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| 292 | #nc_water_pars[:,:,:] = -9999.9 |
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| 293 | |
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| 294 | #nc_water_type = self.nc_file.createVariable( |
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| 295 | #'water_type', 'i1',('y','x'), fill_value=-127) |
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| 296 | #nc_water_type[:,:] = -127 |
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| 297 | |
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| 298 | ## resolved plant canopy |
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| 299 | #nc_lad = self.nc_file.createVariable( |
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| 300 | #'lad', 'f4', ('zlad','y','x'), fill_value=-9999.9) |
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| 301 | #nc_lad.long_name = 'leaf area density' |
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| 302 | #nc_lad[:,:,:] = -9999.9 |
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| 303 | |
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| 304 | #nc_root_area_dens_s = self.nc_file.createVariable( |
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| 305 | #'root_area_dens_s', 'f4', ('zsoil','y','x'), fill_value=-9999.9) |
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| 306 | #nc_root_area_dens_s.long_name = 'parameterized root area density' |
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| 307 | #nc_root_area_dens_s.units = '1/m' |
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| 308 | #nc_root_area_dens_s[:,:,:] = -9999.9 |
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| 309 | |
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| 310 | |
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| 311 | def finalize(self): |
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| 312 | """ Close file """ |
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| 313 | print("Closing file...") |
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| 314 | |
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| 315 | self.nc_file.close() |
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| 316 | |
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| 317 | |
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| 318 | if __name__ == '__main__': |
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| 319 | driver = StaticDriver() |
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| 320 | driver.write_global_attributes() |
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| 321 | driver.define_dimensions() |
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| 322 | driver.add_variables() |
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| 323 | driver.finalize() |
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| 324 | |
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