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#Metview Macro
# **************************** LICENSE START ***********************************
#
# Copyright 2019 ECMWF. This software is distributed under the terms
# of the Apache License version 2.0. In applying this license, ECMWF does not
# waive the privileges and immunities granted to it by virtue of its status as
# an Intergovernmental Organization or submit itself to any jurisdiction.
#
# ***************************** LICENSE END ************************************
#
# read pressure level data
g = read("avg_tuv.grib")
# filter v (meridional component)
v = read(data: g, param: 'v')
# define horizontal axis
horiz_axis = maxis(
axis_tick_label_height: 0.4
)
# define vertical axis
vertical_axis = maxis(
axis_orientation : "vertical",
axis_type : "position_list",
axis_tick_position_list : [1000,925,850,700,500,400,300,250,200,150,100,70,50],
axis_tick_label_height: 0.4
)
# define averaging area - one half of the Northern Hemisphere
area = [90,-90,0,90] #N,W,S,E
# define average view for meridional mean
view = maverageview(
top_level : 50,
bottom_level : 1000,
vertical_scaling : "log",
area : area,
direction : "ns",
horizontal_axis : horiz_axis,
vertical_axis : vertical_axis
)
# define isoline shading for u
cont_v = mcont(
legend : "on",
contour_line_colour : "charcoal",
contour_highlight : "off",
contour_max_level : 30,
contour_min_level : -30,
contour_level_count : 22,
contour_label : "off",
contour_shade : "on",
contour_shade_colour_method : "palette",
contour_shade_method : "area_fill",
contour_shade_palette_name : "eccharts_black_red_21"
)
title = mtext(text_font_size: 0.4)
# define the output plot file
setoutput(pdf_output(output_name : 'meridional_average'))
# generate plot
plot(view, v, cont_v, title)
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import metview as mv
# **************************** LICENSE START ***********************************
#
# Copyright 2019 ECMWF. This software is distributed under the terms
# of the Apache License version 2.0. In applying this license, ECMWF does not
# waive the privileges and immunities granted to it by virtue of its status as
# an Intergovernmental Organization or submit itself to any jurisdiction.
#
# ***************************** LICENSE END ************************************
#
# read pressure level data
g = mv.read("avg_tuv.grib")
# filter v (meridional component)
v = mv.read(data=g, param='v')
# define horizontal axis
horiz_axis = mv.maxis(
axis_tick_label_height=0.4
)
# define vertical axis
vertical_axis = mv.maxis(
axis_orientation = "vertical",
axis_type = "position_list",
axis_tick_position_list = [1000,925,850,700,500,400,300,250,200,150,100,70,50],
axis_tick_label_height = 0.4
)
# define averaging area - one half of the Northern Hemisphere
area = [90,-90,0,90] #N,W,S,E
# define average view for meridional mean
view = mv.maverageview(
top_level = 50,
bottom_level = 1000,
vertical_scaling = "log",
area = area,
direction = "ns",
horizontal_axis = horiz_axis,
vertical_axis = vertical_axis
)
# define isoline shading for v
cont_v = mv.mcont(
legend = "on",
contour_line_colour = "charcoal",
contour_highlight = "off",
contour_max_level = 30,
contour_min_level = -30,
contour_level_count = 22,
contour_label = "off",
contour_shade = "on",
contour_shade_colour_method = "palette",
contour_shade_method = "area_fill",
contour_shade_palette_name = "eccharts_black_red_21"
)
title = mv.mtext(text_font_size=0.4)
# define the output plot file
mv.setoutput(mv.pdf_output(output_name='meridional_average'))
# generate plot
mv.plot(view, v, cont_v, title)
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