WMS 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). 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 Frederic Leclercq VLIZ ERDDAP administrator postal

7 Wandelaarkaai.

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