Identification

Title

Monthly averages and overall average (2005-2009) of the light attenuation coefficient in the water column for photosynthetically available radiation (KPAR)

Abstract

GeoTiff datasets of average coefficient of light attenuation for photosynthetically active radiation (KPAR) in the Greater North Sea and Celtic Seas. The dataset kPAR2005_ 2009_250.tif contains the average annual KPAR calculated over the years 2005-2009. All other datasets are monthly averages (for 2005-2009), Numbers in the GeoTiff names inficate the montha, e.g. the dataset kpar_month_01_250.tif contains monthly averages for the month of January, kpar_month_02_250.tif is for the month of February and so on. Raster cell size 250m. Values are dimensionless and fall between 0 and 1, with 0 being no attenuation (clear water) and 1 being full light attenuation (very turbid). Data was collected by the MERIS satellite. Additional information source: Saulquin, B, Hamdi, A., Gohin G., Populus, J., Mangin A., Fanton d'Andon, O. (2013). Estimation of the diffuse attenuation coefficient KdPAR using MERIS and application to seabed habitat mapping. Remote Sensing of Environment 128; 224–233.

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/47e6ceba-73c4-457a-ae9e-1cbb97441fe2-kpar-outputs.zip

name: kpar-outputs.zip

Unique resource identifier

code

47e6ceba-73c4-457a-ae9e-1cbb97441fe2

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Saulquin, B, Hamdi, A., Gohin G., Populus, J., Mangin A., Fanton d'Andon, O. (2013). Estimation of the diffuse attenuation coefficient KdPAR using MERIS and application to seabed habitat mapping. Remote Sensing of Environment 128; 224–233.

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Marine

Marine Physical Parameters

RM0686

Coefficient of light attenuation

Light

Photosynthetically active radiation

Geographic location

West bounding longitude

-10.9986

East bounding longitude

17.5026

North bounding latitude

63.0

South bounding latitude

46.9975

Temporal reference

Temporal extent

Begin position

2005

End position

2009

Dataset reference date

date type

publication

effective date

2012-12

Frequency of update

Quality and validity

Lineage

Produced by ACRI in 2012 contracted by IFREMER for the EMODnet Seabed Habitats Project, in 2012. Derived from the European Space Agency (ESA)'s MERIS FR product.

Conformity

Data format

name of format

Geospatial (GeoTiff)

version of format

Unknown

Constraints related to access and use

Constraint set

Use constraints

Available under the Open Government Licence 3.0’- Attribution statement: Data is freely available for research or commercial use providing that the originators (EMODnet Seabed Habitats) are acknowledged in any publications produced

Limitations on public access

no limitations

Responsible organisations

Responsible party

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

pointOfContact

Metadata date

2018-06-08

Metadata language