ERDDAP > info > NorthEastAtlantic_Chl_3D_2a14_1a57_1841

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
data			graph	M		Northeast Atlantic Ocean, DIVA 4D 6-year analysis of Water body chlorophyll-a 1972/2020 v2021 [time][lat][lon], 0.1deg, 1975-2018		F   I   M	background			IFREMER, SISMER, ...	NorthEastAtlantic_Chl_3D_2a14_1a57_1841

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	abstract	String	Moving 6-year analysis of Water body chlorophyll-a in the NorthEast Atlantic for each season: - winter: January-March, - spring: April-June, - summer: July-September, - autumn: October-December. Every year of the time dimension corresponds to the 6-year centred average of each season. 6-year periods span from 1971/1976 until 2016/2021. Observation data span from 1971 to 2021. High-frequency observation trails were filtered to a 3h temporal resolution. Depth levels (IODE standard depths): [0.0, 5.0, 10.0, 20.0, 30.0, 40.0, 50.0, 75.0, 100.0, 125.0, 150.0, 200.0, 250.0, 300.0]. Data sources: observational data from SeaDataNet/EMODNet Chemistry Data Network. Descrption of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.4, using GEBCO 30 sec topography for the spatial connectivity of water masses. The horizontal resolution of the produced DIVAnd maps is 0.1 degrees. Horizontal correlation length varies from 200km in open sea regions to 50km at the coast. Vertical correlation length is defined as twice the vertical resolution. Signal-to-noise ratio was fixed to 1 for vertical profiles and 0.1 for time series to account for the redundancy in the time series observations. A logarithmic transformation (DIVAnd.loglin) was applied to the data prior to the analysis. Background field: a vertically-filtered profile of the seasonal data mean value (including all years) is substracted from the data. Detrending of data: no, advection constraint applied: no. Units: mg/m3.
attribute	NC_GLOBAL	Acknowledgements	String	Aggregated data products are generated by EMODnet Chemistry under the support of DG MARE Call for Tenders EASME/2020/OP/0006 (EASME/EMFF/2020/3.1.11/Lot 5/SI2.846161).
attribute	NC_GLOBAL	area_keywords	String	Northeast Atlantic Ocean (40W)
attribute	NC_GLOBAL	area_keywords_urn	String	SDN:C19::SVX00015
attribute	NC_GLOBAL	author_e_mail	String	Nolwenn PAGES <nolwenn.pages@ifremer.fr> Delphine LEROY <delphine.leroy@ifremer.fr> Julie GATTI <julie.gatti@ifremer.fr>
attribute	NC_GLOBAL	Author_email	String	Quitterie CAZENAVE <quitterie.cazenave@ifremer.fr> Julie GATTI <julie.gatti@ifremer.fr>
attribute	NC_GLOBAL	bathymetry_source	String	resolution: 0.1 degree, based on the global GEBCO Digital Atlas, 30 sec, 2014
attribute	NC_GLOBAL	cdm_data_type	String	Grid
attribute	NC_GLOBAL	citation	String	Usage is subject to mandatory citation: "This resource was generated in the framework of EMODnet Chemistry, under the support of DG MARE Call for Tender EASME/EMFF/2020/3.1.11/European Marine Observation and Data Network (EMODnet) - Lot 5 - Chemistry"
attribute	NC_GLOBAL	Conventions	String	CF-1.6, COARDS, ACDD-1.3
attribute	NC_GLOBAL	creator_name	String	IFREMER, SISMER, Scientific Information Systems for the SEA
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://wwz.ifremer.fr/
attribute	NC_GLOBAL	date	String	2023-05-16T16:39:44.282
attribute	NC_GLOBAL	DIVA_references	String	Barth, A., Beckers, J.-M., Troupin, C., Alvera-Azcarate, A., and Vandenbulcke, L. (2014): divand-1.0: n-dimensional variational data analysis for ocean observations, Geosci. Model Dev., 7, 225-241, doi: 10.5194/gmd-7-225-2014
attribute	NC_GLOBAL	DIVAnd_code_doi	String	10.5281/zenodo.7016823
attribute	NC_GLOBAL	DIVAnd_references	String	Barth, A.; Beckers, J.-M.; Troupin, C.; Alvera-Azcarate, A & Vandenbulcke, L. divand-1.0: n-dimensional variational data analysis for ocean observations. Geoscientific Model Development, 2014, 7, 225-241. DOI: 10.5194/gmd-7-225-2014
attribute	NC_GLOBAL	DIVAnd_source	String	https://github.com/gher-uliege/DIVAnd.jl
attribute	NC_GLOBAL	DIVAnd_version	String	v2.7.9
attribute	NC_GLOBAL	doi	String	https://doi.org/10.13120/a3461fb1-d209-440e-a49f-7acff7731395
attribute	NC_GLOBAL	Easternmost_Easting	double	-0.1
attribute	NC_GLOBAL	file_name	String	Water_body_chlorophyll-a.4Danl.nc
attribute	NC_GLOBAL	geospatial_lat_max	double	47.9
attribute	NC_GLOBAL	geospatial_lat_min	double	25.0
attribute	NC_GLOBAL	geospatial_lat_resolution	double	0.09999999999999999
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-0.1
attribute	NC_GLOBAL	geospatial_lon_min	double	-42.0
attribute	NC_GLOBAL	geospatial_lon_resolution	double	0.09999999999999999
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	history	String	Fri Sep 1 10:35:26 2023: ncks -O Water_body_chlorophyll-a.4Danl.nc Water_body_chlorophyll-a.4Danl.nc
attribute	NC_GLOBAL	id	String	DatasetScan/emodnet-domains/By_sea_regions/Northeast_Atlantic_Ocean/Water_body_chlorophyll-a.4Danl.nc
attribute	NC_GLOBAL	infoUrl	String	http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Northeast_Atlantic_Ocean/Water_body_chlorophyll-a.4Danl.nc.html
attribute	NC_GLOBAL	institution	String	IFREMER, SISMER, Scientific Information Systems for the SEA
attribute	NC_GLOBAL	institution_urn	String	SDN:EDMO::486
attribute	NC_GLOBAL	keywords	String	6-year, analysis, atlantic, body, chemistry, chla, chlorophyll, chlorophyll-a, concentration, concentration_of_chlorophyll_in_sea_water, data, diva, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, exploitation, francais, ifremer, information, institut, latitude, longitude, mer, northeast, ocean, oceans, pour, recherche, science, scientific, sea, seawater, sismer, systems, time, v2021, water, Water_body_chlorophyll_a_deepest, Water_body_chlorophyll_a_deepest_L1, Water_body_chlorophyll_a_deepest_L2, year
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
attribute	NC_GLOBAL	NCO	String	netCDF Operators version 4.9.9 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)
attribute	NC_GLOBAL	Northernmost_Northing	double	47.9
attribute	NC_GLOBAL	parameter_keyword	String	Water body chlorophyll-a
attribute	NC_GLOBAL	parameter_keyword_urn	String	SDN:P35::EPC00105
attribute	NC_GLOBAL	product_code	String	Atlantic-Water_body_chlorophyll-a-v2023-ANA
attribute	NC_GLOBAL	product_id	String	a3461fb1-d209-440e-a49f-7acff7731395
attribute	NC_GLOBAL	product_version	String	3
attribute	NC_GLOBAL	project	String	EMODNET Chemistry - Phase 5
attribute	NC_GLOBAL	search_keywords	String	Chlorophyll pigment concentrations in water bodies
attribute	NC_GLOBAL	search_keywords_urn	String	SDN:P02::CPWC
attribute	NC_GLOBAL	source	String	observational data from SeaDataNet/EMODnet Chemistry Data Network
attribute	NC_GLOBAL	sourceUrl	String	http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Northeast_Atlantic_Ocean/Water_body_chlorophyll-a.4Danl.nc
attribute	NC_GLOBAL	Southernmost_Northing	double	25.0
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	summary	String	Northeast Atlantic Ocean - DIVA 4D 6-year analysis of Water body chlorophyll-a 1972/2020 v2021. Every year of the time dimension corresponds to a 6-year running average for Winter (January - March), Spring (April - June), Summer (July - September) or Automn (October - December). Horizontal resolution 0.1° X 0.1°.
attribute	NC_GLOBAL	time_coverage_end	String	2090-11-15T00:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2045-02-15T00:00:00Z
attribute	NC_GLOBAL	title	String	Northeast Atlantic Ocean, DIVA 4D 6-year analysis of Water body chlorophyll-a 1972/2020 v2021 [time][lat][lon], 0.1deg, 1975-2018
attribute	NC_GLOBAL	Westernmost_Easting	double	-42.0
dimension	time		double	nValues=184, evenlySpaced=false, averageSpacing=91 days 7h 20m 39s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	2.3707296E9, 3.8143872E9
attribute	time	axis	String	T
attribute	time	calendar	String	standard
attribute	time	climatology	String	climatology_bounds
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Time
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
dimension	latitude		double	nValues=230, evenlySpaced=true, averageSpacing=0.09999999999999999
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	double	25.0, 47.9
attribute	latitude	axis	String	Y
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
dimension	longitude		double	nValues=420, evenlySpaced=true, averageSpacing=0.09999999999999999
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	double	-42.0, -0.1
attribute	longitude	axis	String	X
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	Water_body_chlorophyll_a_deepest		float	time, latitude, longitude
attribute	Water_body_chlorophyll_a_deepest	_FillValue	float	9.96921E36
attribute	Water_body_chlorophyll_a_deepest	colorBarMaximum	double	30.0
attribute	Water_body_chlorophyll_a_deepest	colorBarMinimum	double	0.03
attribute	Water_body_chlorophyll_a_deepest	colorBarScale	String	Log
attribute	Water_body_chlorophyll_a_deepest	long_name	String	Deepest values of Water body chlorophyll-a
attribute	Water_body_chlorophyll_a_deepest	missing_value	float	9.96921E36
attribute	Water_body_chlorophyll_a_deepest	standard_name	String	concentration_of_chlorophyll_in_sea_water
attribute	Water_body_chlorophyll_a_deepest	units	String	mg/m3
variable	Water_body_chlorophyll_a_deepest_L1		float	time, latitude, longitude
attribute	Water_body_chlorophyll_a_deepest_L1	_FillValue	float	9.96921E36
attribute	Water_body_chlorophyll_a_deepest_L1	cell_methods	String	time: mean within years time: mean over years
attribute	Water_body_chlorophyll_a_deepest_L1	colorBarMaximum	double	50.0
attribute	Water_body_chlorophyll_a_deepest_L1	colorBarMinimum	double	0.0
attribute	Water_body_chlorophyll_a_deepest_L1	long_name	String	Deepest values of Water body chlorophyll-a masked using relative error threshold 0.3
attribute	Water_body_chlorophyll_a_deepest_L1	missing_value	float	9.96921E36
attribute	Water_body_chlorophyll_a_deepest_L1	standard_name	String	water_body_chlorophyll-a
attribute	Water_body_chlorophyll_a_deepest_L1	units	String	mg/m3
variable	Water_body_chlorophyll_a_deepest_L2		float	time, latitude, longitude
attribute	Water_body_chlorophyll_a_deepest_L2	_FillValue	float	9.96921E36
attribute	Water_body_chlorophyll_a_deepest_L2	cell_methods	String	time: mean within years time: mean over years
attribute	Water_body_chlorophyll_a_deepest_L2	colorBarMaximum	double	50.0
attribute	Water_body_chlorophyll_a_deepest_L2	colorBarMinimum	double	0.0
attribute	Water_body_chlorophyll_a_deepest_L2	long_name	String	Deepest values of Water body chlorophyll-a masked using relative error threshold 0.5
attribute	Water_body_chlorophyll_a_deepest_L2	missing_value	float	9.96921E36
attribute	Water_body_chlorophyll_a_deepest_L2	standard_name	String	water_body_chlorophyll-a
attribute	Water_body_chlorophyll_a_deepest_L2	units	String	mg/m3

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.