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0.01 degree

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    Water body silicate - Seasonal Climatology for Gulf of Riga for the period 1995-2021. Four seasons (March-May, June-August, September-November, December-February). Analyses for depths (m) (HELCOM standard depths): 0, 5, 10, 15, 20, 25, 30, 40, 50. Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network. Description of DIVAnd analysis: Geostatistical data analysis by DIVA (Data-Interpolating Variational Analysis) tool. GEBCO_04 Grid (30 arc-seconds) topography is used for the contouring preparation. Files contain analysed fields, error fields and combined field with the deepest value for each grid point selected. Also pre-masked fields using relative error threshold 0.3 and 0.5 are included. In the analyses the horizontal correlation length is fixed to 25 km and decreasing towards the coastline, the vertical correlation length is varying with depth. Signal to noise ratio were fixed to 1.0. Log transformation was used in the analyses. No detrending, advection constraints or weighting are applied. The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees. Unit is umol/l.

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    Water body dissolved inorganic nitrogen - Seasonal Climatology for Gulf of Riga for the period 1995-2021. Four seasons (March-May, June-August, September-November, December-February). Analyses for depths (m) (HELCOM standard depths): 0, 5, 10, 15, 20, 25, 30, 40, 50. Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network. Description of DIVAnd analysis: Geostatistical data analysis by DIVA (Data-Interpolating Variational Analysis) tool. GEBCO_04 Grid (30 arc-seconds) topography is used for the contouring preparation. Files contain analysed fields, error fields and combined field with the deepest value for each grid point selected. Also pre-masked fields using relative error threshold 0.3 and 0.5 are included. In the analyses the horizontal correlation length is fixed to 25 km and decreasing towards the coastline, the vertical correlation length is varying with depth. Signal to noise ratio were fixed to 1.0. Log transformation was used in the analyses. No detrending, advection constraints or weighting are applied. The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees. Unit is umol/l.

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    Water body chlorophyll-a - Seasonal Climatology for Gulf of Riga for the period 2001-2021. Four seasons (March-May, June-August, September-November, December-February). Analyses for depths (m) (HELCOM standard depths): 0, 5, 10, 15, 20, 25, 30, 40. Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network. Description of DIVAnd analysis: Geostatistical data analysis by DIVA (Data-Interpolating Variational Analysis) tool. GEBCO_04 Grid (30 arc-seconds) topography is used for the contouring preparation. Files contain analysed fields, error fields and combined field with the deepest value for each grid point selected. Also pre-masked fields using relative error threshold 0.3 and 0.5 are included. In the analyses the horizontal correlation length is fixed to 25 km and decreasing towards the coastline, the vertical correlation length is varying with depth. Signal to noise ratio were fixed to 1.0. Log transformation was used in the analyses. No detrending, advection constraints or weighting are applied. The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees. Unit is mg/m3.

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    Water body phosphate - Seasonal Climatology for Gulf of Riga for the period 1995-2021. Four seasons (March-May, June-August, September-November, December-February). Analyses for depths (m) (HELCOM standard depths): 0, 5, 10, 15, 20, 25, 30, 40, 50. Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network. Description of DIVAnd analysis: Geostatistical data analysis by DIVA (Data-Interpolating Variational Analysis) tool. GEBCO_04 Grid (30 arc-seconds) topography is used for the contouring preparation. Files contain analysed fields, error fields and combined field with the deepest value for each grid point selected. Also pre-masked fields using relative error threshold 0.3 and 0.5 are included. In the analyses the horizontal correlation length is fixed to 25 km and decreasing towards the coastline, the vertical correlation length is varying with depth. Signal to noise ratio were fixed to 1.0. Log transformation was used in the analyses. No detrending, advection constraints or weighting are applied. The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees. Unit is umol/l.

  • Categories  

    Water body dissolved oxygen concentration - Seasonal Climatology for Gulf of Riga for the period 1995-2021. Four seasons (March-May, June-August, September-November, December-February). Analyses for depths (m) (HELCOM standard depths): 0, 5, 10, 15, 20, 25, 30, 40, 50. Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network. Description of DIVAnd analysis: Geostatistical data analysis by DIVA (Data-Interpolating Variational Analysis) tool. GEBCO_04 Grid (30 arc-seconds) topography is used for the contouring preparation. Files contain analysed fields, error fields and combined field with the deepest value for each grid point selected. Also pre-masked fields using relative error threshold 0.3 and 0.5 are included. In the analyses the horizontal correlation length is fixed to 25 km and decreasing towards the coastline, the vertical correlation length is varying with depth. Signal to noise ratio were fixed to 1.0. Log transformation was used in the analyses. No detrending, advection constraints or weighting are applied. The horizontal resolution of the produced DIVAnd maps grids is 0.01 degrees. Unit is umol/l.

  • Categories  

    Water body chlorophyll-a - Seasonal Climatology for NW Black Sea (region in front of Danube Delta months) for the period 2000-2019 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: mg/m^3. 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 2.7.9, 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 11 depth levels: 0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 15.0, 20.0, 25.0, 30.0, 40.0m. 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).

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    Water body silicate - 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 2.7.9, 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, 100.0m. 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).

  • Categories  

    Water body dissolved inorganic nitrogen - Seasonal Climatology for NW Black Sea (region in front of Danube Delta months) for the period 1980-2019 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 2.7.9, 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 14 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, 70.0m. 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).

  • Categories  

    Water body phosphate - 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 2.7.9, 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, 100.0m. 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).

  • Categories  

    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 2.7.9, 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, 100.0m. 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).