For preparations and running the simulation needed for this tutorial click here ...
To start this tutorial please enter folder 'forward'. |
First, we define the parameter and time step for the cross section then callĀ flexpart_filter() to extract the data. The result is a fieldset with units of "kg m**-3", which we scale explicitly to "ng m**-3" units for plotting.
dIn="result_fwd/" inFile=dIn & "conc_s001.grib" #Define parameter and step par="mdc" step=48 #Get fields for all levels for a given step g=flexpart_filter(source: inFile, param: par, levType: "hl", step: step) #Scale into ng/m3 units g=g*1E12 |
Next, we define the contouring:
#The contour levels cont_list=[1,10,50,100,150,200,250,500,750,1000,2000,5000,7000] #Define contour shading conc_shade = mcont( legend : "on", contour : "off", contour_level_selection_type : "level_list", contour_level_list : cont_list, contour_label : "off", contour_shade : "on", contour_shade_method : "area_fill", contour_shade_max_level_colour : "red", contour_shade_min_level_colour : "RGB(0.14,0.37,0.86)", contour_shade_colour_direction : "clockwise", contour_method: "linear" ) |
Then, we define the cross section view along this line:
xs_view = mxsectview( bottom_level : 0, top_level : 16000, line : [63.31,-25,63.31,9] ) |
and finally generate the plot:
plot(xs_view,g,conc_shade) |
Having run the macro we will get a plot like this: