NorKyst-800 Average current speed and direction WCS

The data set originates from 10 years' average values (2013-2022) of current direction and speed at the surface, respectively, in the water masses (intervals for 5m, 15m, 30m, 50m, 100m, 150m, 200m and 250m), as well as at the seabed. The distance from the seabed with the current model setup ranges from a few cm in shallow water and up to 1.5m when the total depth is 100m or more.

The dataset is available as WMS and WCS services, as well as for download via the Institute of Marine Research's Geoserver https://kart.hi.no/data - select Layer preview and search for the dataset for more download options.

The coastal model NorKyst-800 is a calculation model that simulates, among other things, current, salinity and temperature with 800 meter spatial resolution, in several vertical levels and with high resolution in time for the entire Norwegian coast, based on the model system ROMS (Regional Ocean Modeling System, http://myroms.org). NorKyst-800 has been developed by the Norwegian Institute of Marine Research in collaboration with the Meteorological Institute and Niva ( https://brage.bibsys.no/xmlui/handle/11250/116053).

Identification info

Date (Creation): 2024-04-26

Date (Publication): 2024-04-26

Date (Revision): 2024-04-26

Purpose: Presentation of 10 years' average current direction and speed on the sea surface, in certain intervals in the water bodies (5m, 15m, 30m, 50m, 100m, 150m, 200m and 250m), and on the seabed.

Status: Completed

Publisher

Institute of Marine Research - Marte L. Strømme

Owner

Institute of Marine Research - Jon Albretsen

Maintenance and update frequency: As needed

GEMET - INSPIRE themes, version 1.0

Havområder
Oseanografiske geografiske forhold

Nasjonal tematisk inndeling (DOK-kategori)

Natur

Place

Kysten og norske kystnære havområder

Theme

Strømhastighet
havstrømmer
havbunn
retning
Norkyst 800
Oseanografi
modellert
ROMS

COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata, Part D 4, Classification of Spatial Data Services

infoCoverageAccessService

Spatial scope

Regional

Specific usage: Research and management

Owner

Access constraints: Other restrictions

Other constraints: Åpne data

Use constraints: Other restrictions

Other constraints: Creative Commons BY 4.0 (CC BY 4.0)

Classification: Unclassified

Service Type: download

Begin date: 0001-01-01

Coupling Type: Tight

Contains Operations

No information provided.

Unique resource identifier: EPSG:32633

Distribution format

OGC:WCS ()

Units of distribution: landsfiler

OnLine resource: oseanografi:NorKyst-800_strom_retning_hastighet_XXm_dybde ( OGC:WCS )

Hierarchy level: Service

Other: service

Statement: Havstrøm retning og hastighet er hentet ut fra en ti år lang simulering med ROMS, en tredimensjonal, hydrodynamisk strømmodell. Simuleringsperioden er en dekade fra 2013-2022. Basert på timesverdier er det beregnet middelverdi.

Datasettet er basert på strømvektorer (u_eastward og v_northward), reformatert fra NetCDF med rotasjon til en standard WGS84 UTM33 GeoTIFF-fil ved NMD på HI. Deretter er det beregnet punkter per pixel (ca. 800x800 m), og for hver av disse strømhastighet (wspd = sqrt( u^2 + v ^2) ) og strømretning (wdir = atand(v/(u+0.0001)). Deretter:

if u >= 0.

wdir = 90. - wdir;

else

wdir = 270. - wdir;

end

Dette gir følgende definisjon av strømretning: Strøm mot: N:wdir=0/360, NE:wdir=45, E:wdir=90, SE:wdir=135, S:wdir=180, SW:wdir=225, W:wdir=270, NW:wdir=315).

Script og nærmere beskrivelse er tilgjengelig ved henvendelse til datahjelp@hi.no. datahjelp@hi.no Script og nærmere beskrivelse er tilgjengelig ved henvendelse til datahjelp@hi.no.