589069d3-ae5f-43f0-a0c9-716a1b8fa9bf
eng
series
Forewind Ltd
Data Manager
+44 (0)800 975 5636
Davidson House,
Forbury Square
Reading
RG1 3EU
United Kingdom
info@forewind.co.uk
http://www.forewind.co.uk/
pointOfContact
2011-09-27
MEDIN Discovery metadata standard
2.3.4
urn:ogc:def:crs:EPSG::32631
2013, EMU Ltd, Dogger Bank Offshore Wind Farm (Tranche A, Cable Route and Nearshore), Benthic Ecology Characterisation Survey
2013-02-21
publication
EMU 12/J/1/03/1794/1269 series
documentDigital
The survey of the Dogger Bank Tranche A area and the associated export cable corridor was undertaken by Gardline Environmental Limited (Gardline) between 07/05/2011 and 30/01/2012. The specific objective of the project was to provide characterisation of benthic ecological conditions specific to the site within the Dogger Bank Offshore Wind Farm Zone (hereafter referred to as the Dogger Bank Zone) to inform the
associated Environmental Impact Assessments (EIAs) for projects located within this Tranche.
This report and associated data fulfils this objective through characterisation of the benthic ecological conditions. However, no characterisation employing geophysical data has been undertaken, with this report detailing results up to and including a statistical interpretation of the data. Biotope classification has been undertaken, taking into account the results of both geophysical survey and the ground truthing, via grab samples and drop down camera work reported in this document (see Envision, 2012).
The approach to survey design and sample location is described in Envision (2012). Details of survey methods and the field report have been completed by Gardline and are reported separately.
To inform the associated Environmental Impact Assessments (EIAs) for projects located within Dogger Bank Tranche A.
EMU Ltd
+44 (0) 1489 860 050
1 Mill Court, The Sawmills
Southampton
SO32 2EJ
suzanne.flockhart@emulimmited.co.uk
marketing@emulimited.co.uk
processor
Forewind Ltd
+44 (0)800 975 5636
Davidson House,
Forbury Square
Reading
RG1 3EU
United Kingdom
info@forewind.co.uk
http://www.forewind.co.uk/
custodian
EMU Ltd
+44 (0) 1489 860 050
1 Mill Court, The Sawmills
Southampton
SO32 2EJ
suzanne.flockhart@emulimited.co.uk
originator
notPlanned
PDF
ESRI ArcGIS shapefile
10
Oceanographic geographical features
GEMET - INSPIRE themes, version 1.0
2008-01-06
revision
Marine Environmental Data and Information Network
Sediment benthos grab core
MEDIN Data Guidelines
2012-05-01
revision
3
Sediment grain size parameters
SeaDataNet Parameter Discovery Vocabulary
2013-08-02
revision
76
Grab
SeaDataNet Cruise Summary Report data categories
2011-12-09
revision
3
Benthic Habitat
Contaminants
Macrofauna
Global Change Master Directory Science Keyword variables
2007-04-18
revision
4
Marine Biodiversity
MEDIN Parameter Discipline Keywords
2012-06-09
revision
3
Video survey
MEDIN Data Guidelines
2012-05-01
revision
3
Marine Sediments
Global Change Master Directory Science Keyword terms
2007-04-18
revision
4
Seabed photography
SeaDataNet Parameter Discovery Vocabulary
2013-08-02
revision
76
Agreement for Lease Area
Offshore Cable Corridor
The Crown Estate Renewable Energy Development Areas
2012-05-15
revision
1
Consenting
The Crown Estate Renewable Energy Development Phases
2012-05-15
revision
1
copyright
copyright
1
eng
environment
geoscientificInformation
Charting Progress 2 Sea Areas
2009-06-18
creation
Southern North Sea
-0.28
2.49
53.94
55.18
2011-05-07
2012-01-30
http://www.marinedataexchange.co.uk/search?q=#fq=fq%3DProject%253Amde1r3z3db4205
download
https://www.marinedataexchange.co.uk/details/2478/summary
A link to the web service or dataset.
https://www.marinedataexchange.co.uk
A link to the general host site.
series
Data Specification on Hydrography - Draft Guidelines
2008-12-19
publication
See the referenced specification
true
Environmental seabed images were obtained using a Kongsberg 14-208 digital stills camera system with a dedicated strobe and video lamps, mounted within a stainless steel frame. An Ultra-short Baseline (USBL) positioning beacon was attached to the freshwater lens camera frame. Footage was viewed in real time via an umbilical, assisting in the control of the digital stills camera allowing for shot selection if a sediment change or feature was observed. A minimum of five seabed photographs were taken at each station using hover and drift technique, separated by a time gap of at least 10 seconds. The scale bar represents 1cm intervals.
Benthic faunal and sediment samples were recovered using a modified, galvanised steel 0.1 m2 Mini Hamon grab with a stainless steel bucket, constructed by Gardline. Methods used adhered to industry standard guidelines for benthic studies (Ware & Kenny 2011).
Sediment chemistry samples were recovered using a modified, stainless-steel 0.1 m2 Day grab constructed by Gardline. The grab carried extra weights to induce better penetration on impact and an extended bucket lip to reduce sediment washout. Storm feet and elastic straps were used to reduce the likelihood of the instrument pre-triggering in the water column during deployment.
PSD analysis was undertaken at EMU’s UKAS accredited sediment laboratory using in house methods based on BS1377: Parts 1 – 3: 1990 (dry sieving), and BS13320: 2009 (laser diffraction). The latter method was used when the fine fraction of sediment (<63 μm) comprised >5% of the total sample by weight.
Samples for contaminants analyses were sub-contracted to an experienced UKAS accredited chemistry laboratory. All tests were undertaken to relevant standards, and results certificates are provided as part of Appendix VII.
The macrofaunal analysis was undertaken at EMU’s marine laboratories.