other:python:maps_by_jyp
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other:python:maps_by_jyp [2019/09/13 11:39] jypeter |
other:python:maps_by_jyp [2019/09/13 16:02] jypeter Finished adding the megabiome example |
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| * Summary: Plot two megabiome maps based on 2 versions of the IPSL model (CM5 and CM6), and compare them to a map with observations | * Summary: Plot two megabiome maps based on 2 versions of the IPSL model (CM5 and CM6), and compare them to a map with observations | ||
| - | * Authors: Raj Rani-Singh & Jean-Yves Peterschmitt | + | * Authors: Raj Rani & Jean-Yves Peterschmitt |
| * Date: September 2019 | * Date: September 2019 | ||
| * Script: ''~jypeter/CDAT/Progs/Devel/pasb/PMIP4/Press_Conference_1909/mh_CM6_CM5_megabiome.py | * Script: ''~jypeter/CDAT/Progs/Devel/pasb/PMIP4/Press_Conference_1909/mh_CM6_CM5_megabiome.py | ||
| '' | '' | ||
| + | {{:other:python:mh_cm6_cm5_megabiome.png?direct&300 |}} | ||
| * Load the NetCDF model data with ''cdms2'', and the xlsx observations' data with ''pandas'' | * Load the NetCDF model data with ''cdms2'', and the xlsx observations' data with ''pandas'' | ||
| * Use ''matplotlib''+''cartopy'' to create the plot | * Use ''matplotlib''+''cartopy'' to create the plot | ||
| Line 35: | Line 35: | ||
| * Use a square (''figsize=(8, 8)'') figure size in order to improve the page layout | * Use a square (''figsize=(8, 8)'') figure size in order to improve the page layout | ||
| * Use the same color scale for both the model data (plotted with ''pcolormesh'') and the observation data (plotted with ''scatter'') | * Use the same color scale for both the model data (plotted with ''pcolormesh'') and the observation data (plotted with ''scatter'') | ||
| + | * Use a //dictionary trick// for easily using the same gridlines parameters for all the maps | ||
| * Use a common //listed colormap// to plot the discrete megabiome values (with a //norm// associated with the megabiome values) and the observations (with a **different //norm//** associated with the observations) | * Use a common //listed colormap// to plot the discrete megabiome values (with a //norm// associated with the megabiome values) and the observations (with a **different //norm//** associated with the observations) | ||
| + | * The three plots have the same colormap, but we create a standalone colormap (created with ''mpl.colorbar.ColorbarBase'') in the Bottom Left quadrant. We use ''UR_plot.get_position().bounds'' to determine the exact location of the Upper Right and Lower Left plots, and combine the coordinates to create the axis (with ''my_page.add_axes'') where the colorbar will be plotted | ||
| /* standard page footer */ | /* standard page footer */ | ||
other/python/maps_by_jyp.txt · Last modified: 2020/02/19 09:32 by jypeter
