Abbreviations

CSB - Crowdsourced bathymetry 

 CSV - Comma separated values 

 DCDB - IHO Data Centre for Digital Bathymetry 

 ECDIS - Electronic Chart Display and Information System 

 GEBCO - General Bathymetric Chart of the Ocean 

 GNSS - Global Navigation Satellite System 

 IHO - International Hydrographic Organization 

 NCEI - National Centers for Environmental Information 

 NMEA - National Marine Electronics Association 

 NOAA - National Oceanic and Atmospheric Administration