Exemple #1
0
def write_3d_netcdf(infile, var, varname, description, source, \
                    var_units, lons, lats, sdate):
    """write netcdf files"""
    rootgrp = nc4_dataset(infile, 'w', format='NETCDF4')
    longitude = rootgrp.createDimension('lon', len(lons))
    latitude = rootgrp.createDimension('lat', len(lats))
    time = rootgrp.createDimension('time', None)
    longitudes = rootgrp.createVariable('lon', 'f4', ('lon', ))
    latitudes = rootgrp.createVariable('lat', 'f4', ('lat', ))
    times = rootgrp.createVariable('time', 'f8', ('time', ))
    # two dimensions unlimited.
    varname = rootgrp.createVariable(varname, 'f4', \
                                     ('time', 'lat', 'lon'), \
                                     fill_value=-9999., zlib=True)
    #import time
    rootgrp.description = description
    rootgrp.history = 'Created ' + t_ctime(t_time())
    rootgrp.source = source
    latitudes.units = 'degrees_north'
    longitudes.units = 'degrees_east'
    varname.units = var_units
    string_date = datetime.strftime(sdate, "%Y-%m-%d")
    times.units = 'days since ' + string_date
    times.calendar = 'gregorian'
    latitudes[:] = lats
    longitudes[:] = lons
    varname[:, :, :] = var
    times[:] = nc4_date2num(sdate, units=times.units, calendar=times.calendar)
    rootgrp.close()
def write_bc_netcdf(outfile, var, varname, description, source, var_units, \
var_standard_name, lons, lats, sdate, dates, sig_digit, north_east_corner_lat, \
north_east_corner_lon, south_west_corner_lat, south_west_corner_lon, \
resolution_x, resolution_y, time_increment):
    """write netcdf"""
    rootgrp = nc4_dataset(outfile, 'w', format='NETCDF4_CLASSIC')
    time = rootgrp.createDimension('time', None)
    longitude = rootgrp.createDimension('lon', len(lons))
    latitude = rootgrp.createDimension('lat', len(lats))

    longitudes = rootgrp.createVariable('lon', 'f4', ('lon', ))
    latitudes = rootgrp.createVariable('lat', 'f4', ('lat', ))
    times = rootgrp.createVariable('time', 'f4', ('time', ))

    # two dimensions unlimited.
    varname = rootgrp.createVariable(varname, 'f4', ('time', 'lat', \
    'lon',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    rootgrp.missing_value = -9999
    rootgrp.description = description
    rootgrp.zenith_interp = "true,false,"
    rootgrp.MAP_PROJECTION = "EQUIDISTANT CYLINDRICAL"
    rootgrp.conventions = "CF-1.6"
    rootgrp.south_west_corner_lat = float(south_west_corner_lat)
    rootgrp.south_west_corner_lon = float(south_west_corner_lon)
    rootgrp.north_east_corner_lat = float(north_east_corner_lat)
    rootgrp.north_east_corner_lon = float(north_east_corner_lon)
    rootgrp.DX = resolution_x
    rootgrp.DY = resolution_y
    rootgrp.history = 'Created ' + t_ctime(t_time())
    rootgrp.source = source
    latitudes.units = 'degrees_north'
    longitudes.units = 'degrees_east'
    varname.units = var_units
    varname.standard_name = var_standard_name
    string_date = datetime.strftime(sdate, "%Y-%m-%d %H:%M:%S")
    times.units = 'minutes since ' + string_date
    times.time_increment = time_increment
    times.begin_date = datetime.strftime(sdate, "%Y%m%d")
    times.begin_time = '000000'
    times.calendar = 'gregorian'
    latitudes[:] = lats
    longitudes[:] = lons
    varname[:, :, :] = var
    times[:] = nc4_date2num(dates, units=times.units, calendar=times.calendar)
    rootgrp.close()
def write_bc_netcdf(outfile, var, varname, description, source, var_units, \
var_standard_name, lons, lats, sdate, dates, sig_digit, north_east_corner_lat, \
north_east_corner_lon, south_west_corner_lat, south_west_corner_lon, \
resolution_x, resolution_y, time_increment):
    """write netcdf"""
    rootgrp = nc4_dataset(outfile, 'w', format='NETCDF4_CLASSIC')
    time = rootgrp.createDimension('time', None)
    longitude = rootgrp.createDimension('longitude', len(lons))
    latitude = rootgrp.createDimension('latitude', len(lats))

    longitudes = rootgrp.createVariable('longitude', 'f4', ('longitude', ))
    latitudes = rootgrp.createVariable('latitude', 'f4', ('latitude', ))
    times = rootgrp.createVariable('time', 'f4', ('time', ))

    # two dimensions unlimited.
    varname1 = rootgrp.createVariable(varname[0], 'f4', ('time', \
    'latitude', 'longitude',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    varname2 = rootgrp.createVariable(varname[1], 'f4', ('time', \
    'latitude', 'longitude',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    varname3 = rootgrp.createVariable(varname[2], 'f4', ('time', \
    'latitude', 'longitude',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    varname4 = rootgrp.createVariable(varname[3], 'f4', ('time', \
    'latitude', 'longitude',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    varname5 = rootgrp.createVariable(varname[4], 'f4', ('time', \
    'latitude', 'longitude',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    varname6 = rootgrp.createVariable(varname[5], 'f4', ('time', \
    'latitude', 'longitude',), fill_value=-9999, zlib=True, \
    least_significant_digit=sig_digit)
    rootgrp.missing_value = -9999
    rootgrp.description = description
    rootgrp.zenith_interp = "true,false,"
    rootgrp.MAP_PROJECTION = "EQUIDISTANT CYLINDRICAL"
    rootgrp.conventions = "CF-1.6"
    rootgrp.SOUTH_WEST_CORNER_LAT = float(south_west_corner_lat)
    rootgrp.SOUTH_WEST_CORNER_LON = float(south_west_corner_lon)
    rootgrp.NORTH_EAST_CORNER_LAT = float(north_east_corner_lat)
    rootgrp.NORTH_EAST_CORNER_LON = float(north_east_corner_lon)
    rootgrp.DX = resolution_x
    rootgrp.DY = resolution_y
    #rootgrp.history = 'Created ' + time.ctime(time.time())
    rootgrp.history = 'Created ' + t_ctime(t_time())
    rootgrp.source = source
    latitudes.units = 'degrees_north'
    longitudes.units = 'degrees_east'
    ### Assigning units for each variables
    varname1.units = var_units[0]
    varname2.units = var_units[1]
    varname3.units = var_units[2]
    varname4.units = var_units[3]
    varname5.units = var_units[4]
    varname6.units = var_units[5]
    ### Assigning standard names for each variables
    varname1.standard_name = var_standard_name[0]
    varname2.standard_name = var_standard_name[1]
    varname3.standard_name = var_standard_name[2]
    varname4.standard_name = var_standard_name[3]
    varname5.standard_name = var_standard_name[4]
    varname6.standard_name = var_standard_name[5]

    string_date = datetime.strftime(sdate, "%Y-%m-%d %H:%M:%S")
    times.units = 'minutes since ' + string_date
    times.time_increment = time_increment
    times.begin_date = datetime.strftime(sdate, "%Y%m%d")
    times.begin_time = '000000'
    times.calendar = 'gregorian'
    latitudes[:] = lats
    longitudes[:] = lons
    ## Passing on values
    varname1[:, :, :] = var[0, ]
    varname2[:, :, :] = var[1, ]
    varname3[:, :, :] = var[2, ]
    varname4[:, :, :] = var[3, ]
    varname5[:, :, :] = var[4, ]
    varname6[:, :, :] = var[5, ]
    times[:] = nc4_date2num(dates, units=times.units, calendar=times.calendar)
    rootgrp.close()