Title

9496-25-DTM - Site Survey of Dogger Bank Tranche C Offshore Wind Farm Area by Gardline Geosurvey Ltd

Alternate title

43_9496-25-DTM

Date (Creation)

2022-03-09

Date (Revision)

2022-03-09

Citation identifier

9496-25-DTM

Abstract

Gardline Geosurvey Limited was contracted to survey the Dogger Bank Offshore Wind Farm (OWF) Area between 04-Apr-2013 and 02-Aug-2013, comprising the Tranche C zonal surveys. The aim of the surveys was to carry out a geophysical investigation that would broadly assess the entire developable area of the zone. Seabed information was required to inform the site selection process and enable preliminary foundation design to be undertaken. The geological data acquisition programme was carried out on M.V. Sea Surveyor, which sailed from Hull and returned to Blyth, and M.V. Vigilant which sailed from, and returned to, Great Yarmouth upon completion of survey operations. The Crown Estate is the data owner and copyright holder.

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Gardline Geosurvey Ltd		geophysical.web@gardline.com	Product manager
British Oceanographic Data Centre		enquiries@bodc.ac.uk	Production center

Project name

• EMODNet Bathymetry

SeaDataNet device categories

• multi-beam echosounders

Parameter Discovery Vocabulary (P02)

• Bathymetry and Elevation

GEMET - INSPIRE themes, version 1.0

• Hydrography

Access constraints

Creative Commons Attribution 4.0 International

Use constraints

Creative Commons Attribution 4.0 International

Use limitation

Not for navigation

Spatial representation type

Grid

Distance

3.75  Arc second

Language

English

Character set

UTF8

Topic category

• Oceans

Begin date

2013-04-04

End date

2013-08-02Before

Description

Map projection parameters, values and units :

Axes units :

Codespace

EPSG

Version

7.4

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 7.4

Reference system identifier

WGS 84 / UTM zone 31N (EPSG:32631) /

Number of dimensions

3

Dimension name

Column

Dimension size

1168

Dimension name

Row

Dimension size

320

Dimension name

Time

Dimension size

1

Cell geometry

Point

Transformation parameter availability

Checkpoint Availability

Point in Pixel

• Center

Distribution format

Name	Version
ASCII XYZ

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Oceanographic Data Centre		enquiries@bodc.ac.uk	Dissemination Unit

OnLine resource

Protocol	Linkage	Name
WWW:LINK	https://www.marinedataexchange.co.uk/details/2487/2013-zone-3-dogger-bank-tranche-c-gardline-geosurvey-ltd-geophysical-survey/packages	Gardline Geosurvey's original survey datasets

Hierarchy level

Dataset

Statement

no information

Hierarchy level

Feature

Dataset

accuracy

Hierarchy level

Software

Other

software

Hierarchy level

Property type

Description

parameters of data processing

Statement

Data were processed by Gardline Geosurvey Limited using Caris HIPS and SIPS software (v7.1). A 25m resolution DTM file was produced and made available to the British Oceanographic Data Centre (BODC). The 25m DTM file was then converted by BODC using Globe software (v1.18.18) to the EMODnet Bathymetry standard DTM.NC format at 3.75 arc seconds resolution.

Description

The bathymetric survey data from both vessels were acquired using Kongsberg Simrad EM710 multibeam echo-sounders, one per vessel. A transducer frequency range of 70-100 kHz was used on the M.V. Sea Surveyor, whereas a 95 kHz transducer frequency was used on the M.V. Vigilant. The EM710 achieved an angular coverage of 68deg/68deg with 400 beams on both vessels.

Hierarchy level

Dataset

Horizontal Quality Indicator

3 - < 20 m

Vertical Quality Indicator

2 - MBES low frequency (lower than 100kHz) (similar than 1+2%d)

Purpose Quality Indicator

2 - Bathymetric/morphologic survey

Metadata

File identifier

SDN_CPRD_43_9496-25-DTM

Metadata language

English

Character set

UTF8

Hierarchy level name

Product record

Date stamp

2022-04-05T08:41:11.675Z

Metadata standard name

ISO 19115:2003/19139 - EMODNET - BATHYMETRY

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
British Oceanographic Data Centre		enquiries@bodc.ac.uk	Author