Identification

Title

2000 - 2008 Centre for Environment, Fisheries & Aquaculture Science (Cefas) Natural bed disturbance modelling outputs

Abstract

This dataset consists of output from a computer model that attempts to predict annual seabed disturbance caused by waves and currents. Disturbance was taken to mean physical movement of the seedbed sediments and was quantified as a disturbance frequency (days per year disturbance occurred). For sandy regions the disturbance depth is also predicted (days per year disturbance occurred to a given depth below the seabed). For gravel and mud substrates the depth of disturbance was left unquantified. Format: Zipped ASCII (space delimited) files covering the period 2000-2008 inclusive.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/3772/

function: order

Unique resource identifier

code

CEFAS8b88cb3e-0a95-4f46-b47a-725445630f8a

codeSpace

http://www.cefas.co.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Additional information source

<span style="font-family: 'Calibri',sans-serif; font-size: 11pt;">...</span> <span style="font-family: 'Calibri',sans-serif; font-size: 11pt;">...</span>

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-12

East bounding longitude

10

North bounding latitude

59.5

South bounding latitude

48

Extent

Extent group

authority code

title

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

2000-01-01

End position

2008-12-31

Dataset reference date

date type

publication

effective date

2020-09-15

Frequency of update

notPlanned

Quality and validity

Lineage

Results come from computer modelling of currents and waves together with the seabed response and are calculated on a regular grid covering the European continental Shelf (48° N to 58.5° N and 10° W to 10° E) with a resolution of approximately 11 km. The disturbance frequency depends on waves and currents that differ from year to year. For each year, seperate result files with and without megaripple disturbance are given covering the period 2000-2008 inclusive. Results are expressed in probabilistic terms because of the uncertainty in predictive ability. That is, the probabilities represent an uncertainty in knowledge rather than an inherent randomness in nature. For example, many of the formulae used in the underlying calculations are based on smooth fits to scattered data. Thus any prediction is best regarded as yielding a range of possible values rather than a single deterministic one.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Constraint set

Limitations on public access

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Responsible organisations

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2020-09-15T12:06:28

Metadata language