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 data       graph  M    Black Sea, Danube Delta, DIVAnd 4D seasonal analysis of Water body dissolved oxygen
concentration 1970/2022 v2025 [time][depth][lat][lon], 0.01deg, 1996 		   ?   F   I   M   background (external link) RSS Subscribe
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oceanbrowser_opendap_147b_ee8c_9d8c

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL abstract String Water body dissolved oxygen concentration - Seasonal Climatology for NW Black Sea (region in front of Danube Delta months) for the period 1970-2019 on the domain: Lon E28.5-30.5°E, Lat N43.7-45.6°N.
Season definition: winter: December-February, - spring: March-May, - summer: June-August, - autumn: September-November.
Units: umol/l.
Data Sources: observational data from SeaDataNet/EMODNet Chemistry Data Network.
Description of DIVA analysis: The computation was done with the DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.13, using GEBCO 30sec topography for the spatial connectivity of water masses. Horizontal correlation length of 47.73km and vertical correlation length of 45m were applied.
The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees.
The vertical resolution is 17 depth levels: 0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 15.0, 20.0, 25.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0 m.
The error variance (epsilon2): 1
An anamorphosis transformation was applied to the data: threshold value=200.
The mean value was used as background analysis field.
Quality control of the observations was applied using the interpolated field: QCMETHOD=3 and visual inspection (Observations with residuals outside the minimum and maximum values of the 99% quantile were discarded from the analysis after thoroughly visual inspection).
attribute NC_GLOBAL acknowledgement 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 Black Sea
attribute NC_GLOBAL area_keywords_urn String SDN:C19::3_3
attribute NC_GLOBAL Author_e_mail String Gheorghe Sarbu <ghesarbu@gmail.com>, Luminita Buga <lbuga@web.de>
attribute NC_GLOBAL Bathymetry_source String The GEBCO Digital Atlas published by the British Oceanographic Data Centre on behalf of IOC and IHO, 2003. Resolution used for the analysis: 30 arc-second
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL Conventions String CF-1.60, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_name String National Institute for Marine Research and Development "Grigore Antipa"
attribute NC_GLOBAL creator_url String http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/Coastal_areas-water_body/Black_Sea_-_Danube_Delta/Water_body_dissolved_oxygen_concentration.nc.html (external link)
attribute NC_GLOBAL date String 2025-09-30T13:47:47
attribute NC_GLOBAL DIVA_code_doi String 10.5281/zenodo.7016823
attribute NC_GLOBAL DIVA_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 (external link)
attribute NC_GLOBAL DIVAnd_version String v2.7.13
attribute NC_GLOBAL doi String 10.13120/3d65faa7-674d-4fc9-a57b-5993c9317c14
attribute NC_GLOBAL Easternmost_Easting double 30.5
attribute NC_GLOBAL file_name String Coastal_areas/Black_Sea_-_Danube_Delta/Water_body_dissolved_oxygen_concentration.nc
attribute NC_GLOBAL geospatial_lat_max double 45.6
attribute NC_GLOBAL geospatial_lat_min double 43.7
attribute NC_GLOBAL geospatial_lat_resolution double 0.009999999999999993
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 30.5
attribute NC_GLOBAL geospatial_lon_min double 28.5
attribute NC_GLOBAL geospatial_lon_resolution double 0.01
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String Mon Oct 13 10:38:35 2025: ncks -7 -O -L 5 --baa=4 --ppc default=3 /home/ctroupin/data/EMODnet-Chemistry/Eutrophication2024/Results/Coastal_areas-water_body/Black_Sea-_Danube_Delta//Coastal_areas_Black_Sea_-_Danube_Delta_Water_body_dissolved_oxygen_concentration.nc /home/ctroupin/data/EMODnet-Chemistry/Eutrophication2024/Results/Coastal_areas-water_body/Black_Sea-_Danube_Delta//Coastal_areas_Black_Sea_-_Danube_Delta_Water_body_dissolved_oxygen_concentration.nc
attribute NC_GLOBAL id String DatasetScan/emodnet-projects/v2025/Coastal_areas-water_body/Black_Sea_-_Danube_Delta/Water_body_dissolved_oxygen_concentration.nc
attribute NC_GLOBAL infoUrl String http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/Coastal_areas-water_body/Black_Sea_-_Danube_Delta/Water_body_dissolved_oxygen_concentration.nc.html (external link)
attribute NC_GLOBAL institution String National Institute for Marine Research and Development "Grigore Antipa"
attribute NC_GLOBAL institution_urn String SDN:EDMO::697
attribute NC_GLOBAL keywords String analysis, antipa, black, body, chemistry, concentration, control, danube, data, delta, depth, development, dissolved, divand, earth, Earth Science > Oceans > Ocean Chemistry > Oxygen, error, grigore, institute, latitude, longitude, marine, masked, mole, mole_concentration_of_dissolved_molecular_oxygen_in_sea_water, molecular, national, O2, ocean, oceans, oxygen, quality, relative, research, science, sea, seasonal, seawater, threshold, time, using, v2025, water, Water_body_dissolved_oxygen_concentration, Water_body_dissolved_oxygen_concentration_L1, Water_body_dissolved_oxygen_concentration_L2, Water_body_dissolved_oxygen_concentration_relerr
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 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 Northernmost_Northing double 45.6
attribute NC_GLOBAL parameter_keyword String Water body dissolved oxygen concentration
attribute NC_GLOBAL parameter_keyword_urn String SDN:P35::EPC00002
attribute NC_GLOBAL product_code String Black_Sea-Danube_Delta-Water_body_dissolved_oxygen_concentration-v2025-ANA
attribute NC_GLOBAL product_id String 3d65faa7-674d-4fc9-a57b-5993c9317c14
attribute NC_GLOBAL product_version String 1.0
attribute NC_GLOBAL project String EMODnet-Chemistry
attribute NC_GLOBAL search_keywords String Dissolved oxygen parameters in the water column
attribute NC_GLOBAL search_keywords_urn String SDN:P02::DOXY
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/Black_Sea_-_Danube_Delta/Water_body_dissolved_oxygen_concentration.nc (external link)
attribute NC_GLOBAL Southernmost_Northing double 43.7
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String Black Sea - Danube Delta - DIVAnd 4D seasonal analysis of Water body dissolved oxygen concentration 1970/2022 v2025. Water body dissolved oxygen concentration - Seasonal Climatology for NW Black Sea (region in front of Danube Delta months) for the period 1970-2019 on the domain: Lon E28.5-30.5DegE, Lat N43.7-45.6degN.
Season definition: winter: December-February, - spring: March-May, - summer: June-August, - autumn: September-November.
Units: umol/l.
Data Sources: observational data from SeaDataNet/EMODNet Chemistry Data Network.
Description of DIVA analysis: The computation was done with the DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.13, using GEBCO 30sec topography for the spatial connectivity of water masses. Horizontal correlation length of 47.73km and vertical correlation length of 45m were applied.
The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees.
The vertical resolution is 17 depth levels: 0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 15.0, 20.0, 25.0, 30.0, 40.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0 m.
The error variance (epsilon2): 1
An anamorphosis transformation was applied to the data: threshold value=200.
The mean value was used as background analysis field.
Quality control of the observations was applied using the interpolated field: QCMETHOD=3 and visual inspection (Observations with residuals outside the minimum and maximum values of the 99% quantile were discarded from the analysis after thoroughly visual inspection).
attribute NC_GLOBAL time_coverage_end String 1996-10-16T00:00:00Z
attribute NC_GLOBAL time_coverage_start String 1996-01-16T00:00:00Z
attribute NC_GLOBAL title String Black Sea, Danube Delta, DIVAnd 4D seasonal analysis of Water body dissolved oxygen concentration 1970/2022 v2025 [time][depth][lat][lon], 0.01deg, 1996
attribute NC_GLOBAL WEB_visualisation String https://emodnet.ec.europa.eu/geoviewer/ (external link)
attribute NC_GLOBAL Westernmost_Easting double 28.5
dimension time   double nValues=4, evenlySpaced=false, averageSpacing=91 days 8h 0m 0s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 8.217504E8, 8.45424E8
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 depth   double nValues=17, evenlySpaced=false, averageSpacing=6.25
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth actual_range double 0.0, 100.0
attribute depth axis String Z
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
dimension latitude   double nValues=191, evenlySpaced=true, averageSpacing=0.009999999999999993
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double 43.7, 45.6
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=201, evenlySpaced=true, averageSpacing=0.01
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double 28.5, 30.5
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_dissolved_oxygen_concentration   float time, depth, latitude, longitude
attribute Water_body_dissolved_oxygen_concentration _FillValue float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration cell_methods String time: mean within years time: mean over years
attribute Water_body_dissolved_oxygen_concentration colorBarMaximum double 500.0
attribute Water_body_dissolved_oxygen_concentration colorBarMinimum double 0.0
attribute Water_body_dissolved_oxygen_concentration long_name String Oxygen
attribute Water_body_dissolved_oxygen_concentration lossy_compression String compression_info
attribute Water_body_dissolved_oxygen_concentration lossy_compression_nsd int 3
attribute Water_body_dissolved_oxygen_concentration missing_value float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration QuantizeGranularBitRoundNumberOfSignificantDigits int 3
attribute Water_body_dissolved_oxygen_concentration standard_name String mole_concentration_of_dissolved_molecular_oxygen_in_sea_water
attribute Water_body_dissolved_oxygen_concentration units String umol/l
variable Water_body_dissolved_oxygen_concentration_L1   float time, depth, latitude, longitude
attribute Water_body_dissolved_oxygen_concentration_L1 _FillValue float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration_L1 colorBarMaximum double 50.0
attribute Water_body_dissolved_oxygen_concentration_L1 colorBarMinimum double 0.0
attribute Water_body_dissolved_oxygen_concentration_L1 long_name String Oxygen masked using relative error threshold 0.3
attribute Water_body_dissolved_oxygen_concentration_L1 lossy_compression String compression_info
attribute Water_body_dissolved_oxygen_concentration_L1 lossy_compression_nsd int 3
attribute Water_body_dissolved_oxygen_concentration_L1 missing_value float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration_L1 QuantizeGranularBitRoundNumberOfSignificantDigits int 3
attribute Water_body_dissolved_oxygen_concentration_L1 standard_name String mole_concentration_of_dissolved_molecular_oxygen_in_sea_water
attribute Water_body_dissolved_oxygen_concentration_L1 units String umol/l
variable Water_body_dissolved_oxygen_concentration_L2   float time, depth, latitude, longitude
attribute Water_body_dissolved_oxygen_concentration_L2 _FillValue float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration_L2 colorBarMaximum double 50.0
attribute Water_body_dissolved_oxygen_concentration_L2 colorBarMinimum double 0.0
attribute Water_body_dissolved_oxygen_concentration_L2 long_name String Oxygen masked using relative error threshold 0.5
attribute Water_body_dissolved_oxygen_concentration_L2 lossy_compression String compression_info
attribute Water_body_dissolved_oxygen_concentration_L2 lossy_compression_nsd int 3
attribute Water_body_dissolved_oxygen_concentration_L2 missing_value float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration_L2 QuantizeGranularBitRoundNumberOfSignificantDigits int 3
attribute Water_body_dissolved_oxygen_concentration_L2 standard_name String mole_concentration_of_dissolved_molecular_oxygen_in_sea_water
attribute Water_body_dissolved_oxygen_concentration_L2 units String umol/l
variable Water_body_dissolved_oxygen_concentration_relerr   float time, depth, latitude, longitude
attribute Water_body_dissolved_oxygen_concentration_relerr _FillValue float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration_relerr colorBarMaximum double 0.1
attribute Water_body_dissolved_oxygen_concentration_relerr colorBarMinimum double 0.0
attribute Water_body_dissolved_oxygen_concentration_relerr long_name String Oxygen relative error
attribute Water_body_dissolved_oxygen_concentration_relerr lossy_compression String compression_info
attribute Water_body_dissolved_oxygen_concentration_relerr lossy_compression_nsd int 3
attribute Water_body_dissolved_oxygen_concentration_relerr missing_value float 9.96921E36
attribute Water_body_dissolved_oxygen_concentration_relerr QuantizeGranularBitRoundNumberOfSignificantDigits int 3
attribute Water_body_dissolved_oxygen_concentration_relerr units String 1
attribute Water_body_dissolved_oxygen_concentration_relerr valid_max float 1.0
attribute Water_body_dissolved_oxygen_concentration_relerr valid_min float 0.0

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.


 
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