1 | ''' |
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2 | Generate a test increments file |
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3 | and the SlaReference file |
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4 | |
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5 | Requires coordinates and depth file |
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6 | |
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7 | D. J. Lea Sep 2014 |
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8 | ''' |
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9 | |
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10 | import netCDF4 |
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11 | import numpy as np |
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12 | |
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13 | # example files to get lon and lat |
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14 | exdir='/hpc/data/nwp/ofrd/frld/FORCING/ORCA2_LIM_nemo_v3.6' |
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15 | exfile1='coordinates.nc' |
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16 | |
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17 | infile1=exdir+'/'+exfile1 |
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18 | fileid=netCDF4.Dataset(infile1, mode='r') |
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19 | nav_lon=fileid.variables['nav_lon'][:,:] |
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20 | nav_lat=fileid.variables['nav_lat'][:,:] |
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21 | fileid.close |
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22 | |
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23 | print np.shape(nav_lon) |
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24 | |
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25 | exfile2='data_1m_potential_temperature_nomask.nc' |
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26 | infile2=exdir+'/'+exfile2 |
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27 | fileid=netCDF4.Dataset(infile2, mode='r') |
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28 | nav_lev=fileid.variables['depth'][:] |
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29 | fileid.close() |
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30 | |
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31 | nshp=np.shape(nav_lon) |
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32 | ny=nshp[0] |
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33 | nx=nshp[1] |
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34 | nz=np.size(nav_lev) |
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35 | nt=1 |
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36 | |
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37 | #create a new file |
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38 | outdir='.' |
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39 | outfile='assim_background_increments_test.nc' |
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40 | |
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41 | print "creating: ",outfile |
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42 | ncfile=netCDF4.Dataset(outdir+'/'+outfile, mode='w', format='NETCDF3_CLASSIC') |
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43 | ncfile.createDimension('x',nx) |
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44 | ncfile.createDimension('y',ny) |
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45 | ncfile.createDimension('z',nz) |
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46 | ncfile.createDimension('t',size=0) |
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47 | ncnav_lat = ncfile.createVariable('nav_lat','f4',('y','x')) |
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48 | ncnav_lat[:,:]=nav_lat |
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49 | ncnav_lon = ncfile.createVariable('nav_lon','f4',('y','x')) |
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50 | ncnav_lon[:,:]=nav_lon |
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51 | ncnav_lev = ncfile.createVariable('nav_lev','f4',('z')) |
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52 | ncnav_lev[:]=nav_lev |
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53 | ncvar = ncfile.createVariable('bckineta','f8',('t','y','x')) |
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54 | ncvar[0,:,:]=0.1 |
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55 | ncvar = ncfile.createVariable('bckins','f8',('t','z','y','x')) |
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56 | ncvar[0,:,:,:]=0.1 |
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57 | ncvar = ncfile.createVariable('bckint','f8',('t','z','y','x')) |
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58 | ncvar[0,:,:,:]=0.1 |
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59 | ncvar = ncfile.createVariable('bckinu','f8',('t','z','y','x')) |
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60 | ncvar[0,:,:,:]=0.1 |
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61 | ncvar = ncfile.createVariable('bckinv','f8',('t','z','y','x')) |
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62 | ncvar[0,:,:,:]=0.1 |
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63 | ncvar = ncfile.createVariable('bckinseaice','f8',('t','y','x')) |
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64 | ncvar[0,:,:]=0.1 |
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65 | ncvar = ncfile.createVariable('bckinsshobias','f8',('t','y','x')) |
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66 | ncvar[0,:,:]=0.1 |
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67 | ncvar = ncfile.createVariable('time_counter','f8',('t')) |
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68 | ncvar[0]=0 |
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69 | ncvar = ncfile.createVariable('time','f8') |
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70 | ncvar[:]=10101 |
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71 | ncvar = ncfile.createVariable('z_inc_dateb','f8') |
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72 | ncvar[:]=10101 |
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73 | ncvar = ncfile.createVariable('z_inc_datef','f8') |
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74 | ncvar[:]=10102 |
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75 | |
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76 | |
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77 | ncfile.close() |
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78 | |
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79 | #create sla reference file |
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80 | outfile='slaReferenceLevel_test.nc' |
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81 | |
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82 | print "creating: ",outfile |
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83 | ncfile=netCDF4.Dataset(outdir+'/'+outfile, mode='w', format='NETCDF3_CLASSIC') |
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84 | ncfile.createDimension('x',nx) |
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85 | ncfile.createDimension('y',ny) |
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86 | ncnav_lat = ncfile.createVariable('nav_lat','f4',('y','x')) |
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87 | ncnav_lat[:,:]=nav_lat |
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88 | ncnav_lon = ncfile.createVariable('nav_lon','f4',('y','x')) |
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89 | ncnav_lon[:,:]=nav_lon |
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90 | ncvar = ncfile.createVariable('sossheig','f4',('y','x'),fill_value=1e20) |
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91 | ncvar[:,:]=0.01 |
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92 | |
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93 | ncfile.close() |
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