INTERNATIONAL HYDROGRAPHIC REVIEW 
MAY 2020 
79 
Table 2: National reference frames and services complying with BSCD2000 (as of May 2020, without 
responsibility for correctness). 
Country 
3-D position 
Physical height 
Height ref. surface 
GNSS pos. 
service 
Denmark 
EUREF89 
DVR90 
DKgeoid12 
GPSnet.dk, 
SmartNet 
Estonia 
EUREF-EST97 
EH2000 
EST-GEOID2017 
ESTPOS 
Finland 
EUREF-FIN 
N2000 
FIN2005N00 
FinnRef 
Germany 
ETRS89/DREF91 
Realization 2016 
DHHN2016 
GCG2016 
SAPOS 
Latvia 
LKS92 
LAS2000.5 
LV14 
LatPOS 
Lithuania 
LKS94 
LAS07 
LIT15G 
LitPOS 
Norway 
EUREF89 
NN2000 
HREF2018B_NN2000 
SATREF 
Poland 
PL-ETRF2000 
PL-EVRF2007-NH 
PL-geoid-2011 
ASG-EUPOS 
Sweden 
SWEREF 99 
RH2000 
SWEN17_RH2000 
SWEPOS 
5. Summary and Outlook 
So far, several countries around the Baltic Sea are using BSCD2000 as the common reference 
level for nautical charts as well as for water level information. According to the time schedule and 
the roadmap (http://www.bshc.pro/media/documents/CDWG/CDWG+RoadMap.pdf), the plan is to 
implement the common reference level until 2023. Almost all countries have taken the necessary 
decisions to move further in the implementation process, however this ambitious goal will most 
probably not be reached by all countries. For paper charts, the implementation will take longer 
time and there will be a significant transition period that will last for several years after 2023. 
Hydrographic offices will publish information concerning the national plans and progress of imple 
mentation since there will be differences in schedules of publication of charts and water level 
information between countries. 
There are many benefits to be achieved with the implementation of BSCD2000. All depth and 
water level information will be provided in the same datum within the whole Baltic Sea. This elimi 
nates the confusion between different chart datums and makes data transfer between national 
Hydrographic Offices and other organizations safer and easier, thereby contributing to safety of 
navigation in the highly frequented Baltic Sea. Further, on it enhances wider and easier use of 
depth data and promotes utilization of future navigation systems based on International 
Hydrographic Organization (IHO) S-10X standards. 
BSCD2000 is based on the common European Vertical Reference System to which many national 
height systems are linked. Thus, depths on sea and heights on land will be referenced to the 
same reference system, facilitating e.g. offshore engineering in the sensitive coastal zones of the 
Baltic Sea. BSCD2000 can be used with GNSS applications by means of a consistent height 
reference surface, which will be realized by a high-resolution geoid model. The computation of 
this model was promoted by the EU co-financed project FAMOS and is now being finalized. It is