Exemplo n.º 1
0
def hovmoller(array, lat_array, lon_array, latmin, latmax, lonmin,
              lonmax, mean):

    """Calcula a media meridional ou zonal
    :param array:
    :param lat_array:
    :param lon_array:
    :param latmin:
    :param latmax:
    :param lonmin:
    :param lonmax:
    :param mean:
    """

    latmin, lonmin, ilatmin, ilonmin = Dg.gridpoint(lat_array, lon_array,
                                                    latmin, lonmin)
    latmax, lonmax, ilatmax, ilonmax = Dg.gridpoint(lat_array, lon_array,
                                                    latmax, lonmax)

    lat = lat_array[ilatmin:ilatmax + 1]
    lon = lon_array[ilonmin:ilonmax + 1]

    if mean == 'lat':
        hov = np.nanmean(array[:, ilatmin:ilatmax + 1, ilonmin:ilonmax + 1],
                         axis=1)
    elif mean == 'lon':
        hov = np.nanmean(array[:, ilatmin:ilatmax + 1, ilonmin:ilonmax + 1],
                         axis=2)

    return hov, lat, lon
Exemplo n.º 2
0
def cut2region(indata, inlat, inlon, minlat, minlon, maxlat, maxlon):
    """Cut input data to the region of interest

    :param indata: 3d data array that will be cut
    :type indata: numpy array
    :param inlat: 1d lat array that will be latitude
    :type inlat: numpy array
    :param inlon: 1d lon array that will be longitude
    :type inlon: numpy array
    :param minlat: value of the minimun latitude
    :type minlat: float
    :param minlon: value of the minimun longitude
    :type minlon: float
    :param maxlat: value of the maximum latitude
    :type maxlat: float
    :param maxlon: value of the maxium longitude
    :type maxlon: float
    :return: Return data array cut, lon array cut and lat array cut to
    the region of interest
    """

    min_lat, min_lon, min_lat_index, min_lon_index = Dg.gridpoint(inlat, inlon,
                                                                  minlat,
                                                                  minlon)
    max_lat, max_lon, max_lat_index, max_lon_index = Dg.gridpoint(inlat, inlon,
                                                                  maxlat,
                                                                  maxlon)
    cut_data = indata[..., min_lat_index:max_lat_index,
                      min_lon_index:max_lon_index]
    cut_lat = inlat[min_lat_index:max_lat_index]
    cut_lon = inlon[min_lon_index:max_lon_index]

    return cut_data, cut_lat, cut_lon
Exemplo n.º 3
0
esi_st = []
spi_st = []

for year in range(2003, 2015 + 1):

    for month in mes_esi:

        print year, month

        # Declaring variables
        name1 = 'esi_4WK_SMN_{0:04d}_SA.nc'.format(year)
        data1 = netCDF4.Dataset(str(path_in1) + name1)
        lat = data1.variables['latitude'][:]  # Declaring latitude
        lon = data1.variables['longitude'][:]  # Declaring longitude

        min_lat, min_lon, min_lat_index, min_lon_index = Dg.gridpoint(
            lat, lon, -22., -48.0)
        max_lat, max_lon, max_lat_index, max_lon_index = Dg.gridpoint(
            lat, lon, -6., -36.)
        lats = lat[min_lat_index:max_lat_index]
        lons = lon[min_lon_index:max_lon_index]

        aux_in1 = data1.variables['esi'][
            dic_esi[month], min_lat_index:max_lat_index, min_lon_index:
            max_lon_index]  # Declaring variable under study to calculate the thiessen aux_in
        time_esi = data1.variables['time']
        aux_in1 = np.expand_dims(aux_in1, axis=0)
        aux_in1 = ma.masked_where(aux_in1 <= -6., aux_in1)
        aux_in1 = ma.masked_where(aux_in1 >= 6., aux_in1)

        print "esi_sao_francisco"
        Dmasked1 = caso_shape(aux_in1[:, :, :], lats, lons,
Exemplo n.º 4
0
    print season

    for ANO in range(2003, 2016 + 1):

        print ANO, dic_esi[season]

        name = 'esi_4WK_SMN_{0:4d}_SA.nc'.format(ANO)
        data = netCDF4.Dataset(str(path_in) + name)
        aux_in = data.variables['esi'][dic_esi[season], :, :]
        aux_in = np.expand_dims(aux_in, axis=0)

        lat = data.variables['latitude'][:]  # Declaring latitude
        lon = data.variables['longitude'][:]  # Declaring longitude

        min_lat, min_lon, min_lat_index, min_lon_index = Dg.gridpoint(
            lat, lon, -20., -50.0)
        max_lat, max_lon, max_lat_index, max_lon_index = Dg.gridpoint(
            lat, lon, 0., -34.)

        lats = lat[min_lat_index:max_lat_index]
        lons = lon[min_lon_index:max_lon_index]

        aux_in = data.variables['esi'][dic_esi[season],
                                       min_lat_index:max_lat_index,
                                       min_lon_index:max_lon_index]
        aux_in = np.expand_dims(aux_in, axis=0)

        aux_in = ma.masked_where(aux_in <= -6., aux_in)
        aux_in = ma.masked_where(aux_in >= 6., aux_in)

        txtbox(u'Fonte: NOAA/ESSIC and USDA-ARS\nElaboração: FUNCEME', 0.46,
Exemplo n.º 5
0
# lats = read_fcst_file.variables['lat'][:]
# lons = read_fcst_file.variables['lon'][:]
# read_fcst_file.close()

# hind_file = "/home/marcelo/FSCT-ECHAM46/APR2015_HIND89-08-1DG/pcp-daily-total-ec4amip_89-08MJJ.1.0dg.fix.nc"
# read_hind_file = pupynere.NetCDFFile(hind_file, 'r')
# hind = read_hind_file.variables['pcp'][:, :, :]
# read_hind_file.close()
#
# obs_file = "/home/marcelo/FSCT-ECHAM46/APR2015_HIND89-08-1DG/cmap.89-08-MJJ-1.0dg.fix.nc"
# read_obs_file = pupynere.NetCDFFile(obs_file, 'r')
# obs = read_obs_file.variables['pcp'][:, :, :]
# read_obs_file.close()

if myopt == "p":
    n_lon, n_lat, i_lon, i_lat = dg.gridpoint(lons, lats, mylon, mylat)
    myfcst = fsct[0, i_lat, i_lon]
    myhind = hind[:, i_lat, i_lon]
    myobs = obs[:, i_lat, i_lon]
    below, normal, above, fsignal, fstd, opad = cs.compute_probability(myfcst, myhind, myobs)
    fsignal = np.expand_dims(fsignal, axis=0)
    figname = "curve_prob_%s_%s.png" % (mylon, mylat)
    pm.plotnorm(fsignal, fstd, opad, fig_name=figname, fig_title='')

elif myopt == "a":
    print 't1'
    pass

else:
    print 't2'
    pass