Gallery of use-cases

A collection of use-cases of the epygram library.

This place is dedicated to grow with users, please contribute with more use-cases, provided it could be of interest to colleagues !

A.1 - H2D Plots

1. A simplest plot with default options

2. Different plot methods from Matplotlib

3. Handle figure and axes in cartoplot() method

4. Using a different projection for the plot

5. Choose NaturalEarth features to be added to plot

6. Customize parallels and meridians

7. Global Lon/Lat grids: rotate/shift center

8. Superposition of 2 fields

9. Plot wind with barbs, wind speed or both

10. Define and use a home-made colormap

11. Superpose an observation point onto a field plot

A.2 - Other plots

1. Plot profile(s)

2. Plot a section

3. Comparison of 2 fields through a scatter-plot

4. Histogram of field(s)

B - Dimensions

1. Aggregate model-level fields to 3D

2. Aggregate fields temporally (manually)

3. Aggregate fields temporally (using meta_resource)

4. Aggregate H2D fields to 4D

5. Extract a H2D field at a certain level from 3D

6. Extract a Point and/or get value

7. Extract a V1D profile from a 3D field

8. Extract a V2D section from a 3D field

9. Reduce time dimension of a field

C - Data

1. Decumulate rain fields

2. Spectral filtering & spectra plots for rectangular domains

3. Spectral filtering & spectra plots for global domains

4. Modify field data

5. Apply a mask using another field

6. Recompute u/v from psi/khi (Arpege)

7. Compute vor/div from u/v

8. Shaving: cut values over a threshold down to this threshold

9. Morphing: apply local deformation

D.1 - Horizontal Geometry

1. Extract a zoom

2. Extract a sub-array from a Rectangular domain, keeping projection properties

3. Resample: project/interpolate a field onto another geometry using resampling

4. Resample on an “on-the-fly created” regular lon/lat geometry

5. Get Gauss grid resolution

D.2 - Vertical Geometry

1. Get 3D pressure field at all hybrid-pressure levels

2. Convert profiles vertical coordinate from Hybrid-Pressure to Pressure

3. Convert profiles vertical coordinate from Hybrid-Pressure to Altitude

4. Plot the z/p characteristics of a Hybrid-Pressure vertical coordinate

E - Formats specificities

1. GRIB specificities

2. netCDF specificities

F - Applications

G - Settings