ERDDAP > info > oceanbrowser_opendap_fc56_eba4_f5a0

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			Northeast Atlantic Ocean, Loire River, DIVAnd 4D seasonal analysis of Water body silicate 1950/2024 v2025 [observations]		M	background			IFREMER, SISMER, ...	oceanbrowser_opendap_fc56_eba4_f5a0

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	abstract	String	Seasonal climatology of Water body silicate for Loire river for the period 1950-2024 and for the following seasons: - winter: January-March, - spring: April-June, - summer: July-September, - autumn: October-December. Observation data span from 1950 to 2024. Depth levels (m): [0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 15.0, 20.0, 25.0, 30.0, 35.0, 40.0, 45.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0, 110.0, 120.0, 130.0]. Data sources: observational data from SeaDataNet/EMODNet Chemistry Data Network. Description of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.12, using GEBCO 15 sec topography for the spatial connectivity of water masses. The horizontal resolution of the produced DIVAnd maps is 0.01 degrees. Horizontal correlation length is defined seasonally (in meters): 133000 (winter), 180000 (spring), 150000 (summer), 210000 (autumn). Vertical correlation length was optimized and vertically filtered and a seasonally-averaged profile was used (DIVAnd.fitvertlen). 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: the vertically-filtered data mean profile is substracted from the data. Detrending of data: no, advection constraint applied: no. Units: umol/l.
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_email	String	Gaëlle HERBERT <gaelle.herbert@ifremer.fr> Julie GATTI <julie.gatti@ifremer.fr>
attribute	NC_GLOBAL	bathymetry_source	String	resolution: 0.01°, based on the global GEBCO Digital Atlas, 15 sec, 2019
attribute	NC_GLOBAL	cdm_data_type	String	Grid
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	2025-10-16T18:14:56.535
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	v2.7.12
attribute	NC_GLOBAL	doi	String	https://doi.org/10.13120/45ade511-7cf2-415a-9c45-4126aa24ce61
attribute	NC_GLOBAL	file_name	String	Water_body_silicate.nc
attribute	NC_GLOBAL	history	String	Thu Nov 6 15:59:49 2025: ncks -7 -O -L 5 --baa=4 --ppc default=3 /media/ctroupin/T7 Shield/data/EMODnet-Chemistry/Eutrophication2024/Results/Coastal_areas-water_body/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_silicate.nc /media/ctroupin/T7 Shield/data/EMODnet-Chemistry/Eutrophication2024/Results/Coastal_areas-water_body/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_silicate.nc
attribute	NC_GLOBAL	id	String	DatasetScan/emodnet-projects/v2025/Coastal_areas-water_body/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_silicate.nc
attribute	NC_GLOBAL	infoUrl	String	http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/Coastal_areas-water_body/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_silicate.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	analysis, atlantic, body, data, depth, divand, exploitation, francais, ifremer, information, institut, latitude, loire, longitude, mer, northeast, obsdepth, observations, obslat, obslon, obstime, ocean, pour, recherche, river, scientific, sea, seasonal, seawater, silicate, sismer, systems, time, v2025, water
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 5.2.1 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco, Citation = 10.1016/j.envsoft.2008.03.004)
attribute	NC_GLOBAL	parameter_keyword	String	Water body silicate
attribute	NC_GLOBAL	parameter_keyword_urn	String	SDN:P35::EPC00008
attribute	NC_GLOBAL	product_code	String	Loire-Water_body_silicate-v2025-ANA
attribute	NC_GLOBAL	product_id	String	45ade511-7cf2-415a-9c45-4126aa24ce61
attribute	NC_GLOBAL	product_version	String	1
attribute	NC_GLOBAL	project	String	EMODNET Chemistry â€" Phase 5
attribute	NC_GLOBAL	search_keywords	String	Silicate concentration parameters in the water column
attribute	NC_GLOBAL	search_keywords_urn	String	SDN:P02::SLCA
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-projects/v2025/Coastal_areas-water_body/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_silicate.nc
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	summary	String	Northeast Atlantic Ocean - Loire River - DIVAnd 4D seasonal analysis of Water body silicate 1950/2024 v2025. Seasonal climatology of Water body silicate for Loire river for the period 1950-2024 and for the following seasons: - winter: January-March, - spring: April-June, - summer: July-September, - autumn: October-December. Observation data span from 1950 to 2024. Depth levels (m): [0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 15.0, 20.0, 25.0, 30.0, 35.0, 40.0, 45.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0, 110.0, 120.0, 130.0]. Data sources: observational data from SeaDataNet/EMODNet Chemistry Data Network. Description of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.12, using GEBCO 15 sec topography for the spatial connectivity of water masses. The horizontal resolution of the produced DIVAnd maps is 0.01 degrees. Horizontal correlation length is defined seasonally (in meters): 133000 (winter), 180000 (spring), 150000 (summer), 210000 (autumn). Vertical correlation length was optimized and vertically filtered and a seasonally-averaged profile was used (DIVAnd.fitvertlen). 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: the vertically-filtered data mean profile is substracted from the data. Detrending of data: no, advection constraint applied: no. Units: umol/l.
attribute	NC_GLOBAL	title	String	Northeast Atlantic Ocean, Loire River, DIVAnd 4D seasonal analysis of Water body silicate 1950/2024 v2025 [observations]
dimension	observations		int	nValues=5697, evenlySpaced=true, averageSpacing=1.0
attribute	observations	actual_range	int	0, 5696
attribute	observations	long_name	String	Observations
attribute	observations	units	String	count
variable	obsdepth		double	observations
attribute	obsdepth	colorBarMaximum	double	8000.0
attribute	obsdepth	colorBarMinimum	double	-8000.0
attribute	obsdepth	colorBarPalette	String	TopographyDepth
attribute	obsdepth	long_name	String	depth of the observations
attribute	obsdepth	positive	String	down
attribute	obsdepth	standard_name	String	depth
attribute	obsdepth	units	String	meters
variable	obslat		double	observations
attribute	obslat	colorBarMaximum	double	90.0
attribute	obslat	colorBarMinimum	double	-90.0
attribute	obslat	long_name	String	latitude of the observations
attribute	obslat	standard_name	String	latitude
attribute	obslat	units	String	degrees_north
variable	obslon		double	observations
attribute	obslon	colorBarMaximum	double	180.0
attribute	obslon	colorBarMinimum	double	-180.0
attribute	obslon	long_name	String	longitude of the observations
attribute	obslon	standard_name	String	longitude
attribute	obslon	units	String	degrees_east
variable	obstime		double	observations
attribute	obstime	ioos_category	String	Time
attribute	obstime	long_name	String	time of the observations
attribute	obstime	standard_name	String	time
attribute	obstime	time_origin	String	01-JAN-1970 00:00:00
attribute	obstime	units	String	seconds since 1970-01-01T00:00:00Z

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.