1 | #!/usr/bin/env python |
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2 | # This software is licensed under the terms of the Apache Licence Version 2.0 |
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3 | # which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. |
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4 | # |
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5 | # Functionality provided: Simple tool for creating maps and time series of retrieved fields. |
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6 | # |
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7 | # Requirements: |
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8 | # in addition to a standard python 2.6 or 2.7 installation the following packages need to be installed |
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9 | # ECMWF WebMARS, gribAPI with python enabled, emoslib, ecaccess web toolkit, all available from https://software.ecmwf.int/ |
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10 | # dateutils |
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11 | # matplotlib (optional, for debugging) |
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12 | |
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13 | import datetime |
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14 | import time |
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15 | import os,inspect,sys,glob |
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16 | import socket |
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17 | # add path to submit.py to pythonpath so that python finds its buddies |
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18 | localpythonpath=os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))) |
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19 | if localpythonpath not in sys.path: |
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20 | sys.path.append(localpythonpath) |
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21 | |
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22 | from matplotlib.pylab import * |
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23 | import matplotlib.patches as mpatches |
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24 | from mpl_toolkits.basemap import Basemap,addcyclic |
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25 | import matplotlib.colors as mcolors |
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26 | from matplotlib.font_manager import FontProperties |
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27 | from matplotlib.patches import Polygon |
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28 | import matplotlib.cm as cmx |
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29 | import matplotlib.colors as colors |
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30 | from argparse import ArgumentParser,ArgumentDefaultsHelpFormatter |
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31 | |
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32 | from FlexpartTools import interpret_args_and_control,silentremove,product,Control |
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33 | from GribTools import GribTools |
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34 | from gribapi import * |
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35 | from rasotools.utils import stats |
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36 | |
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37 | def plot_retrieved(args,c): |
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38 | |
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39 | start = datetime.datetime.strptime(c.start_date,'%Y%m%d%H') |
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40 | end = datetime.datetime.strptime(c.end_date,'%Y%m%d%H') |
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41 | |
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42 | c.paramIds=asarray(c.paramIds,dtype='int') |
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43 | c.levels=asarray(c.levels,dtype='int') |
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44 | c.area=asarray(c.area) |
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45 | |
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46 | index_keys=["date","time","step"] |
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47 | indexfile=c.inputdir+"/date_time_stepRange.idx" |
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48 | silentremove(indexfile) |
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49 | files=glob.glob(c.inputdir+'/'+c.prefix+'*') |
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50 | grib=GribTools(files) |
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51 | iid=grib.index(index_keys=index_keys, index_file = indexfile) |
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52 | |
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53 | gdict=dict(Ni = 360, Nj = 181, iScansNegatively = 0, jScansPositively = 0, |
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54 | jPointsAreConsecutive = 0, alternativeRowScanning = 0, |
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55 | latitudeOfFirstGridPointInDegrees = 90, |
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56 | longitudeOfFirstGridPointInDegrees = 181, |
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57 | latitudeOfLastGridPointInDegrees = -90, |
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58 | longitudeOfLastGridPointInDegrees = 180, |
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59 | iDirectionIncrementInDegrees = 1, |
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60 | jDirectionIncrementInDegrees = 1 |
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61 | ) |
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62 | |
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63 | index_vals = [] |
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64 | for key in index_keys: |
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65 | key_vals = grib_index_get(iid,key) |
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66 | print key_vals |
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67 | |
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68 | index_vals.append(key_vals) |
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69 | |
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70 | fdict=dict() |
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71 | fmeta=dict() |
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72 | fstamp=dict() |
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73 | for p in c.paramIds: |
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74 | for l in c.levels: |
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75 | key='{:0>3}_{:0>3}'.format(p,l) |
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76 | fdict[key]=[] |
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77 | fmeta[key]=[] |
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78 | fstamp[key]=[] |
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79 | for prod in product(*index_vals): |
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80 | for i in range(len(index_keys)): |
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81 | grib_index_select(iid,index_keys[i],prod[i]) |
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82 | |
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83 | gid = grib_new_from_index(iid) |
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84 | # if gid is not None: |
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85 | |
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86 | while(gid is not None): |
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87 | date = grib_get(gid, 'date') |
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88 | fdate= datetime.datetime(date/10000,mod(date,10000)/100,mod(date,100)) |
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89 | gtime = grib_get(gid, 'time') |
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90 | step = grib_get(gid, 'step') |
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91 | fdatetime=fdate+datetime.timedelta(hours=gtime/100) |
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92 | # if fdatetime<start or fdatetime>end: |
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93 | # break |
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94 | gtype = grib_get(gid, 'type') |
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95 | paramId = grib_get(gid, 'paramId') |
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96 | parameterName = grib_get(gid, 'parameterName') |
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97 | level=grib_get(gid,'level') |
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98 | if step>=c.start_step and step <=c.end_step and fdatetime>=start and fdatetime<=end and paramId in c.paramIds and level in c.levels: |
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99 | key='{:0>3}_{:0>3}'.format(paramId,level) |
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100 | print key |
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101 | fdatetimestep=fdatetime+datetime.timedelta(hours=step) |
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102 | if len(fstamp)==0: |
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103 | fstamp[key].append(fdatetimestamp) |
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104 | fmeta[key].append((paramId,parameterName,gtype,fdatetime,gtime,step,level)) |
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105 | fdict[key].append(flipud(reshape(grib_get_values(gid),[gdict['Nj'],gdict['Ni']]))) |
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106 | else: |
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107 | i=0 |
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108 | inserted=False |
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109 | for i in range(len(fstamp[key])): |
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110 | if fdatetimestep<fstamp[key][i]: |
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111 | fstamp[key][i:i]=[fdatetimestep] |
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112 | fmeta[key][i:i]=[(paramId,parameterName,gtype,fdatetime,gtime,step,level)] |
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113 | fdict[key][i:i]=[flipud(reshape(grib_get_values(gid),[gdict['Nj'],gdict['Ni']]))] |
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114 | inserted=True |
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115 | break |
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116 | if not inserted: |
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117 | fstamp[key].append(fdatetimestep) |
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118 | fmeta[key].append((paramId,parameterName,gtype,fdatetime,gtime,step,level)) |
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119 | fdict[key].append(flipud(reshape(grib_get_values(gid),[gdict['Nj'],gdict['Ni']]))) |
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120 | |
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121 | |
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122 | grib_release(gid) |
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123 | gid = grib_new_from_index(iid) |
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124 | |
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125 | for k in fdict.keys(): |
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126 | fml=fmeta[k] |
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127 | fdl=fdict[k] |
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128 | |
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129 | for fd,fm in zip(fdl,fml): |
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130 | ftitle=fm[1]+' {} '.format(fm[-1])+datetime.datetime.strftime(fm[3],'%Y%m%d%H')+' '+stats(fd) |
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131 | pname='_'.join(fm[1].split())+'_{}_'.format(fm[-1])+datetime.datetime.strftime(fm[3],'%Y%m%d%H')+'.{:0>3}'.format(fm[5]) |
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132 | plotmap(fd, fm,gdict,ftitle,pname+'.eps') |
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133 | |
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134 | for k in fdict.keys(): |
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135 | fml=fmeta[k] |
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136 | fdl=fdict[k] |
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137 | fsl=fstamp[k] |
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138 | if fdl: |
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139 | fm=fml[0] |
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140 | fd=fdl[0] |
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141 | ftitle=fm[1]+' {} '.format(fm[-1])+datetime.datetime.strftime(fm[3],'%Y%m%d%H')+' '+stats(fd) |
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142 | pname='_'.join(fm[1].split())+'_{}_'.format(fm[-1])+datetime.datetime.strftime(fm[3],'%Y%m%d%H')+'.{:0>3}'.format(fm[5]) |
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143 | lat=-20 |
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144 | lon=20 |
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145 | plottimeseries(fdl,fml,fsl,lat,lon, gdict, ftitle, pname+'.eps') |
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146 | |
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147 | def plottimeseries(flist,fmetalist,ftimestamps,lat,lon,gdict,ftitle,filename): |
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148 | t1=time.time() |
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149 | latindex=(lat+90)*180/(gdict['Nj']-1) |
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150 | lonindex=(lon+179)*360/gdict['Ni'] |
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151 | farr=asarray(flist) |
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152 | ts=farr[:,latindex,lonindex] |
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153 | f=plt.figure(figsize=(12,6.7)) |
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154 | plt.plot(ftimestamps,ts) |
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155 | plt.title(ftitle) |
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156 | savefig(c.outputdir+'/'+filename) |
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157 | print 'created ',c.outputdir+'/'+filename |
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158 | plt.close(f) |
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159 | print time.time()-t1,'s' |
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160 | |
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161 | def plotmap(flist,fmetalist,gdict,ftitle,filename): |
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162 | t1=time.time() |
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163 | f=plt.figure(figsize=(12,6.7)) |
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164 | mbaxes = f.add_axes([0.05, 0.15, 0.8, 0.7]) |
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165 | m =Basemap(llcrnrlon=-180.,llcrnrlat=-90.,urcrnrlon=180,urcrnrlat=90.) |
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166 | #if bw==0 : |
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167 | #fill_color=rgb(0.6,0.8,1) |
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168 | #else: |
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169 | #fill_color=rgb(0.85,0.85,0.85) |
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170 | |
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171 | lw=0.3 |
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172 | m.drawmapboundary() |
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173 | parallels = arange(-90.,91,90.) |
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174 | # labels = [left,right,top,bottom] |
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175 | m.drawparallels(parallels,labels=[True,True,True,True],linewidth=lw) |
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176 | meridians = arange(-180.,181.,60.) |
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177 | m.drawmeridians(meridians,labels=[True,True,True,True],linewidth=lw) |
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178 | m.drawcoastlines(linewidth=lw) |
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179 | xleft=gdict['longitudeOfFirstGridPointInDegrees'] |
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180 | if xleft>180.0: |
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181 | xleft-=360. |
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182 | x=linspace(xleft,gdict['longitudeOfLastGridPointInDegrees'],gdict['Ni']) |
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183 | y=linspace(gdict['latitudeOfLastGridPointInDegrees'],gdict['latitudeOfFirstGridPointInDegrees'],gdict['Nj']) |
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184 | xx, yy = m(*meshgrid(x,y)) |
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185 | |
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186 | s=m.contourf(xx,yy, flist) |
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187 | title(ftitle,y=1.1) |
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188 | cbaxes = f.add_axes([0.9, 0.2, 0.04, 0.6]) |
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189 | cb=colorbar(cax=cbaxes) |
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190 | |
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191 | savefig(c.outputdir+'/'+filename) |
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192 | print 'created ',c.outputdir+'/'+filename |
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193 | plt.close(f) |
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194 | print time.time()-t1,'s' |
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195 | |
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196 | |
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197 | def interpret_plotargs(*args,**kwargs): |
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198 | |
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199 | parser = ArgumentParser(description='Retrieve FLEXPART input from ECMWF MARS archive', |
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200 | formatter_class=ArgumentDefaultsHelpFormatter) |
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201 | |
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202 | # the most important arguments |
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203 | parser.add_argument("--start_date", dest="start_date", |
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204 | help="start date YYYYMMDD") |
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205 | parser.add_argument( "--end_date", dest="end_date", |
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206 | help="end_date YYYYMMDD") |
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207 | |
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208 | parser.add_argument("--start_step", dest="start_step", |
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209 | help="start step in hours") |
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210 | parser.add_argument( "--end_step", dest="end_step", |
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211 | help="end_step in hours") |
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212 | |
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213 | # some arguments that override the default in the control file |
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214 | parser.add_argument("--levelist", dest="levelist",help="Vertical levels to be retrieved, e.g. 30/to/60") |
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215 | parser.add_argument("--area", dest="area", help="area defined as north/west/south/east") |
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216 | parser.add_argument("--paramIds", dest="paramIds", help="parameter IDs") |
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217 | parser.add_argument("--prefix", dest="prefix",default='EN', help="output file name prefix") |
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218 | |
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219 | # set the working directories |
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220 | parser.add_argument("--inputdir", dest="inputdir",default=None, |
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221 | help="root directory for storing intermediate files") |
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222 | parser.add_argument("--outputdir", dest="outputdir",default=None, |
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223 | help="root directory for storing output files") |
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224 | parser.add_argument("--flexpart_root_scripts", dest="flexpart_root_scripts", |
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225 | help="FLEXPART root directory (to find grib2flexpart and COMMAND file)\n\ |
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226 | Normally flex_extract resides in the scripts directory of the FLEXPART distribution") |
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227 | |
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228 | parser.add_argument("--controlfile", dest="controlfile",default='CONTROL.temp', |
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229 | help="file with control parameters") |
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230 | args = parser.parse_args() |
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231 | |
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232 | try: |
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233 | c=Control(args.controlfile) |
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234 | except IOError: |
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235 | try: |
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236 | c=Control(localpythonpath+args.controlfile) |
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237 | |
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238 | except: |
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239 | print 'Could not read control file "'+args.controlfile+'"' |
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240 | print 'Either it does not exist or its syntax is wrong.' |
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241 | print 'Try "'+sys.argv[0].split('/')[-1]+' -h" to print usage information' |
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242 | exit(1) |
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243 | |
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244 | if args.levelist: |
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245 | c.levels=args.levelist.split('/') |
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246 | else: |
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247 | c.levels=[0] |
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248 | if args.area: |
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249 | c.area=args.area.split('/') |
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250 | else: |
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251 | c.area='[0,0]' |
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252 | |
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253 | c.paramIds=args.paramIds.split('/') |
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254 | if args.start_step: |
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255 | c.start_step=int(args.start_step) |
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256 | else: |
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257 | c.start_step=0 |
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258 | if args.end_step: |
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259 | c.end_step=int(args.end_step) |
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260 | else: |
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261 | c.end_step=0 |
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262 | |
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263 | c.start_date=args.start_date |
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264 | c.end_date=args.end_date |
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265 | c.prefix=args.prefix |
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266 | c.inputdir=args.inputdir |
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267 | if args.outputdir: |
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268 | c.outputdir=args.outputdir |
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269 | else: |
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270 | c.outputdir=c.inputdir |
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271 | |
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272 | return args,c |
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273 | |
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274 | if __name__ == "__main__": |
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275 | |
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276 | args,c=interpret_plotargs() |
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277 | plot_retrieved(args,c) |
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