Tutorial 4 - Geophysics (Seismology): Add JN (#8)

* Add JN for geophysics with basic structure
* Improve introduction cell | Add section 'Addional comments'
* code for grdcontour, project, and grdtrack, need to add note
* lack of xyz2grd, and need to add last part note
* pygmt.xyz2grd finish
* Make argument for yshift flexible
* Add section for adding beachball
* Move beachball part at the end of the script
* material for seismicity
* add seismicity code, need to add note
* Improve coding style | Use SC by Crameri
* Use colormap with was not flipped between SC versions | TEST Comment 'fig.show'
* TEST Add 'Figure.show' back
* Introduce variable for resoultion of displayed images
* Use correct color in comment
* Add comment for low resolution of images within JN
* Use resolution of 150 dpi for images displayed in JN
* Show only final images within JN
* Improve 'Plotting additional feature' section
* Add section 'Orientation / suggestion for 4.1'
* Add links to PyGMT
* Add variables 'fig*'
* Add color-coding for profil | Update and Improve comments
* Flip order of '4.1seismicity' and '4.2 beachball'
* Add subsections for section 3 to improve structur
* Use name instead of number for font
* Write 'Note' consistently the same
* Add code and docs for 'shading' parameter
* add tutorial 3 link
* EQ catalog smaller, and modify the searching criteria and period

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Co-authored-by: jhtong33 <[email protected]>
Co-authored-by: Wei Ji <[email protected]>

book/_toc.yml

@@ -16,6 +16,7 @@ parts:
   - file: tut01_firstfigure
   - file: tut02_spe_pd_gpd
   - file: tut03_spe_xarray
+  - file: tut04_geophysics
   - file: tut05_topography
   - file: tut06_animation
     sections: