Bottom types

The dataset consists of over 62 000 data points, obtained during hydrographic surveys in fjords and coastal areas of Norway from Barents Sea in north to Oslofjord in south. Data points provide an indication of which type of sediment can be expected on the bottom (for example, whether it is coarse grained or fine grained). The distribution of seabed sediments is closely related to the physical conditions and tells about the submarine landscape, currents, waves and sedimentary processes.

Date (Creation): 0001-01-01

Date (Publication): 0001-01-01

Date (Revision): 2017-07-04

Code: bunntyper_fra_sjomaling

Purpose: The purpose of this data set is to provide an indication of which type of sediment can be expected on the bottom and the distribution of sediments on the seabed.

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	Reidulv Bøe	reidulv.boe@ngu.no	Owner

Maintenance and update frequency: As needed

Nasjonal inndeling i geografiske initiativ og SDI-er

Norway Digital
Modellbaserte vegprosjekter
fellesDatakatalog

Nasjonal tematisk inndeling (DOK-kategori)

Geologi
Kyst og fiskeri

Place

Norske kystområder
Svalbard

Theme

sediment
grain size
marine
coastal
sea floor
fjord
sjømåling
Kartverket

Specific usage: The bottom type is of great importance in many aspects. The distribution of sediments on the bottom is closely linked to the physical conditions and tells about the submarine landscape, bottom currents, wave-wash and sedimentary processes.

The level of detail in the data set indicates use within the map scale: 1: 5,000 to 1: 50,000

User contact info

Organisation name	Individual name	Electronic mail address	Role
			Owner

Use limitation: Detaljnivået på datasettet tilsier bruk innenfor kartmålestokken: 1:5 000 - 1:50 000.

Access constraints: Other restrictions

Other constraints: Åpne data

Use constraints: Other restrictions

Other constraints: Norsk lisens for offentlige data (NLOD)

Spatial representation type: Vector

Denominator: 10000

Language: Norwegian

Topic category

Geoscientific information

Supplemental Information: Sediment samples are obtained during hydrographic surveys in fjords and costal areas of Norway over many years. There might occur some uncertainties in Geographic accuracy of sampling locations and geological information.

Unique resource identifier: EPSG:25832

Unique resource identifier: EPSG:25833

Unique resource identifier: EPSG:25835

Unique resource identifier: EPSG:32632

Unique resource identifier: EPSG:32633

Unique resource identifier: EPSG:32635

Unique resource identifier: EPSG:4326

Distribution format

Name	Version
FGDB	10.2
Shape	10.2
SOSI	4.5
Shape

OnLine resource

Protocol	Linkage	Name
WWW:DOWNLOAD-1.0-http--download	http://geo.ngu.no/download/order?dataset=709

Hierarchy level: Dataset

Statement: Data points in the data set are digitized from analogue charts by the Mapping Authority. The Geological Survey of Norway (NGU) has further processed the data by entering new attribute fields, where the original bottom type and other information are described with SOSI standard codes.