Depth data, Oslofjorden. Bathymetry model 1m-grid

The depth model is a regular bathymetry grid for the inner Oslofjord. The basis for the dataset is detailed depth data collected using interferometric sonar and multi-beam sonar.

Date (Creation): 2020-11-19

Date (Publication): 2009-07-13

Date (Revision): 2025-02-24

Code: batymetri_ngu

Purpose: The purpose of the dataset is to present depth and terrain variations in the Oslofjord. Based on the bathymetry model, other terrain parameters can be calculated.

Status: Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Geological Survey of Norway	Aave Lepland	Aave.Lepland@ngu.no	Publisher
Geological Survey of Norway	Aivo Lepland	Aivo.Lepland@ngu.no	Owner

Maintenance and update frequency: Not planned

GEMET - INSPIRE themes, version 1.0

Geologi
Havområder
Oseanografiske geografiske forhold

Nasjonal inndeling i geografiske initiativ og SDI-er

Norway Digital
MarineGrunnkart
Felles datakatalog

Nasjonal tematisk inndeling (DOK-kategori)

Høydedata
Landskap
Natur
Geologi
Kyst og fiskeri

Place

Oslofjorden
Inner Oslofjord
Oslo
Nesodden
Frogn
Bærum
Asker

Theme

Dybde
Dybdemodell
Terrengmodell
Batymetri
Havbunn
Relieff
Dybdeforhold
Dybdedata
Dyp
grid
Terreng
fjord

Keywords

NGU
Oslofjorden
Indre Oslofjord
GEOS

Spatial scope

Local

Specific usage: Bathymetry is closely linked to seabed geology and submarine processes, and is one of the most important parameters in the marine environment. Depth has a lot to say for water temperature, salinity, light conditions, currents, oxygen content, etc. which in turn affect biological and chemical processes in the ocean. Water depth and bottom relief are also of great importance for human activities at sea: transport, aquaculture, installations on the seabed, development, etc.

The data set can be used to present depth and terrain variations in the Oslofjorden for modeling and terrain analyzes, as a basis for area and environmental planning, habitat mapping, vulnerability analyzes, etc.

User contact info

Organisation name	Individual name	Electronic mail address	Role
			Owner

Access constraints: Other restrictions

Other constraints: Åpne data

Use constraints: Other restrictions

Other constraints: No conditions apply to access and use

Classification: Unclassified

Spatial representation type: Grid

Denominator: 10000

Language: Norwegian

Topic category

Oceans

Begin date: 2020-11-19

Supplemental Information: Although with good resolution (1m) the dataset is of rather poor quality. It is combined of several surveys and has holes and artefakts. Not suited for navigation. Best used at scales 1:100 000 - 1:10 000.

Unique resource identifier: EPSG:32632

Distribution format

Name	Version
GeoTIFF
GeoTIFF
GeoTIFF

Units of distribution: fylkesvis

OnLine resource

Protocol	Linkage	Name
GEONORGE:DOWNLOAD	https://nedlasting.ngu.no/api/capabilities/

Hierarchy level: Dataset

Completeness omission

Name of measure: Prosentvis dekning i forhold til datasettets utstrekning

Measure description: Datasettets faktiske kartlagte areal i forhold til datasettets spesifiserte utstrekning

Quantitative result

Value: 100

Completeness omission

Name of measure: Prosentvis oppfyllelse av FAIR-prinsipper

Measure description: Angir fullstendighet i forhold til krav fra FAIR-prinsippene (The FAIR Guiding Principles for scientific data management and stewardship)

Quantitative result

Value: 90

Statement: Data fra Oslofjorden ble samlet inn av Norges geologiske undersøkelse (NGU) og Forsvarets Forskningsinstitutt (FFI) i 2004-2008 som ledd i prosjektet Geologi i Osloregionen (GEOS). Dybdedata er innsamlet med GeoAcoustics 250 kHz GeoSwath interferometrisk sonar, prossesert vha. GeoSwath og ER Mapper programvare (filtrering, korreksjoner, gridding), og bearbeidet med ESRI ArcGIS verktøy.