INTERNATIONAL HYDROGRAPHIC REVIEW 
MAY 2020 
69 
-0.02 -0.01 0.00 0.01 0.02 
e) Height differences going from the national height reference frame of Sweden (RH 2000) to zero-tide 
EVRF2019 (mean -7 mm; min. -19 mm; max. -2 mm) 
Keeping the aforementioned developments in mind, the common reference level Baltic Sea Chart 
Datum 2000 (BSCD2000) has been specified with the aim to 
=s> replace the existing variety of reference levels by a seamless chart datum definition for the 
entire Baltic Sea; 
=s> simplify the determination and use of bathymetric charts by using the existing European 
geodetic standards (European Terrestrial Reference System 1989 and European Vertical 
Reference System 2000) and to make the marine infrastructure of the Baltic Sea fully 
interoperable with the national geodetic infrastructure, namely the national satellite-based 
positioning services (e.g., SAPOS, SWEPOS, FinnRef) and the national height systems; 
thereby 
=s> provide an optimal support for current and future marine GNSS aided applications and 
=s> comply with future S-10X standards of the International Hydrographic Organization (IHO).