Technical Information

Baltic Sea Ice Code (BSIC)
International Station Network for Ice Reports in BSIC
- Tabular form of national fairway sections and areas
- Geographical distribution of fairway sections and areas
  - Denmark
    - Baltic Sea
    - Kattegat
  - Estonia
  - Finland
  - Germany
    - North Sea
    - Baltic Sea
  - Latvia
  - Lithuania
  - The Netherlands
  - Norway
  - Poland
  - Russia
  - Sweden
Sea Ice Terminology
- Baltic terms I PDF in English, Dutch, German, Norwegian, Polish and Russian
- Baltic terms II PDF in English, Danish, Estonian, Finnish, Latvian and Swedish
- WMO Nomenclature I, terms and description, many languages
- WMO Nomenclature II, PDF, fewer languages but with annotated glossary and description of sea ice symbols

News

We are updating the Website and in the process some features may not work and or look strange.

BSIM

BSIM-29 will be held in the week 13-17. October 2025 in Berlin, also commemorating 100 Years of collaboration between Baltic ice services.
The last BSIM-28 was in 2023 in Tallin, Estonia

Ice Information

German statistics »

International statistics »

Weekly sea surface temperature »

Latest ice chart »

Actual situation »

News Archive ⇒

The Baltic Sea Ice Services (BSIS) is an ad-hoc working group of the sea ice services of the Baltic Sea and the North Sea. The common website is hosted and administered by the German Ice Service at the BSH (Bundesamt für Seeschifffahrt und Hydrographie). More Information is available in the Background Tab.