Ice Navigation

Information gathering on current ice conditions is vital for the company's and the crew's risk assessment during voyage planning and prior to entering the affected area. Risk assessment will not necessarily provide precise answers to questions such as "how strong is strong enough?" or "how fast is too fast?" as we still lack some basic knowledge of how ships behave in ice.

Published 30 September 2024

Generally, though, approximate answers are good enough for planning as long as they are coupled with appropriately cautious operation. Hazard identification and relevant areas to discuss during risk assessment could involve:

  1. Environmental conditions, including understanding of the actual ice conditions

  2. The right approach to ship equipment, including awareness of own ice class and "winterization" required

  3. Experience, training and information to be provided to the ship's crew to match their actions to the requirements of the voyage

  4. Operational issues, including voyage planning, navigation and emergency response

Hence the focus should not be only on the vessel itself and her cargo, but should also include training the crew in preparedness for the extreme conditions they may encounter. Gard's advice is that, if there is the slightest possibility that the vessel will be directed to a port which may be ice-bound upon arrival or during stay, a suitable ICE clause should be inserted in the charterparty and the bills of lading.

Featured resources, including ice maps and alerts (external content)

Baltic and International Maritime Council (BIMCO) Gard's advice is for our members to sign up BIMCO's member's service on ‘Ice' - https://www.bimco.org/ships-ports-and-voyage-planning/ice-information. On this site members can find a specific description of the ice conditions your ship may encounter around the world, regulations by ice authorities, recommendations for vessels operating in the winter season and the different Ice Clauses. The site could be accessed through www.bimco.org and is a collection of data from all major ice affected regions.

Baltic Sea Ice Service The purpose of Baltic Sea Services (BSIS) is to create a harmonised range of ice information products and services for the Baltic Sea and adjacent waters which are tailored to the needs of users and provide a better basis for decision making, thus contributing to the safety of navigation. The latest ice conditions are collected on a daily basis for Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Norway, Poland, Russian Baltic ports and Sweden. For the current situation: http://www.bsis-ice.de/actualsituation.shtml

Japan Meteorological Agency Sea ice chart Far East - Okhotsk Sea, Sakhalin http://www.data.jma.go.jp/kaiyou/shindan/c_1/okhotsk_anl/okhotsk_anl.html

Polar view Polar view, the European Arctic Node, offers integrated monitoring and forecasting services in the Polar regions, as well as mid latitude areas, affected by ice and snow. The Polar view service includes enhanced sea ice information (charts and forecasts) as well as ice-edge and iceberg monitoring data. Areas Eastern Greenland, Svalbard, North and Baltic Sea and Barents Sea are included. https://cryo.met.no/en/latest-ice-charts

Swedish Ice ServiceThe ice service at Swedish Meteorlological and Hydrological Institute (SMHI) produce daily ice charts for the Baltic sea region and provide expertise to the ice breaking management at the Swedish Maritime Administration. Ice charts and reports are available free of charge for the Baltic region. http://www.smhi.se/oceanografi/istjanst/produkter/sstcolor.pdf

The Northern Sea Route Administration The main target for NSRA is to ensure safe navigation and protection of marine environment from the pollution in the water area of the Northern sea route. Relevant administrative- and operational information, such as weather and ice conditions, for the Northern Sea Route is available for all users at the current website. http://www.nsra.ru/en/home.html

Kongsberg Satellite Services AS KSAT is a Norwegian commercial operator and provider of satellite ground station services and satellite based maritime monitoring services. KSAT provides near real-time access to the satellite images for users operating in the high North. This enables users to receive real time information on the prevailing sea conditions and use it for navigation.

https://www.ksat.no/services/earth-observation-services/

Canadian Arctic:

Canadian Ice Service The Canadian Ice Service is the leading authority for information on ice in Canada's navigable waters. The Ice service provides the public with direct access to ice and iceberg information. The website contains a substantial amount of information on ice and iceberg conditions. Ice charts and ice bulletins can be downloaded from the website below. Area: Canadian waters, Eastern Arctic, Hudson Bay, Western Arctic among others). https://www.canada.ca/en/environment-climate-change/services/ice-forecasts-observations/latest-conditions.html

Transport Canada Centre Canadian regulations concerning ships operating in ice-covered waters. Includes:

- Information about mandatory and recommended publications to be onboard during winter transit in Canadian waters - Pre-arrival information requested concerning type of sea water cooling system found abroad ship

- Marine safety guide checklist for operation in ice infested waters.

Canadian Coast Guard publication:"Ice Navigation in Canadian Waters" This document provides Masters and watchkeeping crew of vessels transiting Canadian ice-covered waters with the necessary information to obtain an understanding of the hazards, navigation techniques, and responses of the vessel. The manual has been modified to assist ships operating in ice in all Canadian waters including the Arctic.

US:

National Weather Service (NWS) NWS provides weather, hydrologic and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas. The Anchorage forecast office is responsible for the southern portion of the state from the Canadian border just north of Yakutat and all the way west to the end of the Aleutian chain. Graphic analyses of sea surface temperatures and sea ice as well as five day sea ice forecast can be viewed at

https://www.weather.gov/afc/ice

Gard material on Ice Navigation