Fixing and updating bathymetry

Fixing and updating bathymetry#

The handling of bathymetry information is handled in the class GEBCO14Bathymetry from ceraux package.

We notice that in version 3 of CCI Sea State dataset there is a problem with negative longitudes:

../../_images/bathymetry_problem.png

It was found out that there was an error in the bathymetry grid vector decoding (read in -180°/180° convention instead of 0°/360° convention). Correcting for this shift in GEBCO14Bathymetry class, the problem is now resolved :

../../_images/bathymetry_resolution.png

In the mean time, a new version GEBCO 2024 was made available (this time -180°/180° convention!) with an improved 15’’ resolution (instead of 30’’) which is now used instead, through a new GEBCO24Bathymetry class in ceraux