AROME-Arctic is a convection-permitting deterministic atmosphere ensemble model covering Svalbard, the Norwegian and Barents Seas. It is run in operational routine at Meteorologisk institutt (MET Norway). The model code is the same framework as MEPS; based on HARMONIE cy38h1.2. HARMONIE (Hirlam Aladin Regional/Meso-scale Operational NWP In Europe) is a cooperation including Meteo-France and their Aladin partners, the Hirlam group and also ECMWF with their IFS (Integrated Forecasting System) model. HARMONIE-AROME is a particular configuration of the Harmonie system suited for the highest resolutions. The version currently used is based on cycle 38h1.2. This model version is described in Muller et al. (2017). A major upgrade from cy38h1.2 to cy40h1.1 for AROME-Arctic is planned by 3rd quarter 2017. Cy40h1.1 is described by Bengtsson et al. (2017) and the most important change is a new treatment of the turbulent processes giving less low clouds and fog in the latest model version. AROME-Arctic has horizontal resolution of 2.5 km and has 65 vertical levels. It is ran up to 66 hours four times daily (00,06,12,18) with three-hourly cycling for data assimilation (3D-VAR). Lateral boundary data is from ECMWF HRES. The model system is routinely evaluated against observed weather and quarterly summaries for Norway are published at https://met.no/Forskning/Publikasjoner/MET_info/ From termin time (00, 06, 12 and 18UTC) we use XXhr and XXminutes to receive and process all available observations, approximately XX minutes to run the AROME-Arctic system on the High Performance Computer capacity and the rest of the time to post-process forecast parameters further and process and distribute all data.

The map shows where the ice edge is now, meaning the boundary between solid ice and floating ice. The Norwegian Meteorological Institute updates the map every working day, Monday to Friday.

Carbonate in surface sediments.

The North Atlantic current (red arrows) originates in the hot and salty Gulf Stream which flows out of the Mexican gulf and follows the east coast of the USA. When this current leaves the continental shelf and moves across the North Atlantic itâs often called the North Atlantic current. The North Atlantic current provides a significant amount of heat transport to northern Europe. This heat transport is greatest in winter because the current velocity is greater in that part of the year. The North Atlantic current keeps a very constant temperature and salinity throughout the year. It gradually looses heat and salinity as it flows towards the north east and gets mixed with colder and less salty water. At the south western part of the map where the current leaves the American continental shelf the surface temperature is 15-20 oC and the salinity is approximately 36. When it reaches the inlet to the Barents Sea the surface temperature is reduced to 5 oC in the winter and 10 oC in the summer, while the salinity stays at 35 throughout the year.The North Atlantic current continues into the Polar seas through the Fram Strait west of Svalbard and into the Barents Sea (pink arrows). When it reaches these areas its quickly chilled to 2-3 oC and the salinity sinks towards 34.7.The cooling of the North Atlantic current happens when it comes into contact with the colder and less salty Arctic current (blue arrows) that flows south west towards Svalbardâs east coast, south out of the Fram Strait and south out of the Davids Strait between Greenland and Canada. This current has salinity below 34 and the temperature is between -2 oC and +2 oC. In the same way as the North Atlantic current cools on the way north east the Arctic current heats up on its way towards the south west. The Arctic current does however give a significant colder climate around the coast of Greenland and along the Canadian Labrador- and Newfoundland-coasts compared to Europe coasts.Close to the coasts both on the eastern and western side of the North Atlantic there are lighter coastal currents with salinity between 25 and 34 (green arrows). In these areas both the temperature and salinity varies greatly throughout the season. They are warmer then the North Atlantic current during the summer and colder during the winter. In the same way the salinity varies greatly throughout the year because of the varying freshwater runoffs from land.

Kartet viser utbredelsen av steinkobbe. Latin name: Phoca vitulina. Family: Phocidae. Distribution: Sub Arctic waters along the east and west coasts of both the North Atlantic and north Pacific. In Norway they occur in colonies along the Norwegian mainland coast and on Prins Karls Forland in Svalbard. The harbour seals occur mainly in nearshore areas that are protected against wave action.

Kartet viser utbredelsen av nordøstarktisk hyse. For mer informasjon se: http://www.imr.no/temasider/fisk/hyse/nordostarktisk_hyse/nb-no

Sea Ice Frequency charts display the percentage of days with more than 15 % ice coverage for each month over a 30 years periode.

Deep arctic sponge aggregations. This habitat can be described as a type of deep-sea sponge aggregation (sensu OSPAR 2010) occurring only in the deeper, colder water (Arctic modified, and Norwegian Sea Deep Water), where glass sponges (class Hexactinellida) are typical and other strictly deep-sea sponges are common. One of the most common species of glass sponge is the Caulophacus arcticus, which is generally found on hard sea bottoms on the lower part of the continental slope.

The data set shows data on ship traffic in the period 1 July 2016 to 30 June 2017 distributed in a grid of 250 x 250 meters. The data show all ships with class A AIS transponders. The data source is Havbase. The stronger the color the more passes of the route in the period. This provides a good overview of the large traffic flows.

Met Norway's operational numerical wave model MyWaveWam is run on a 4 km grid covering Europe and the Arctic. The model is run twice daily with ECMWF and AROME atmospheric forcing to give forecasts to +66 hrs