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  • This dataset is the first dedicated SMOS Sea Surface Salinity (SSS) product for the Baltic basin to enhance the science capabilities in the Baltic region and help to fill the gaps and grand challenges identified by the scientific community. These new product has been created under the funded ESA project ITT Baltic+ Salinity dynamics (4000126102/18/I-BG). This basin is one of the most challenging regions for the satellite SSS retrieval. The available EO-based SSS products are quite limited in terms of spatio-temporal coverage and quality. This is mainly due to technical limitations that strongly affect the brightness temperatures (TB), such as the high contamination by interferences and the contamination close to land and ice edges. Moreover, the sensitivity of TB to SSS changes is very low and dielectric models present limitations in this low salinity regime. Baltic+ L4 SSS product comprises 9 years (2011-2019) of daily maps at 0.05 degrees. A detailed explanation of the product algorithms and validation can be found at http://bec.icm.csic.es/doc/BEC_PD_SSS_Baltic_L3_L4.pdf and in the publication: Gonzalez-Gambau et al., “First SMOS Sea Surface Salinity dedicated products over the Baltic Sea“, Earth System Science Data, 2021 We present here the seasonal averaged Baltic+ L4 SSS products for the period 2011-2019. The daily Baltic+ L4 SSS products can be downloaded from the BEC FTP service (sftp://becftp.icm.csic.es) in the directory OCEAN/SSS/SMOS/Baltic/v1.0/L4/daily/

  • Regional hunting numbers for Grey seals 2011-2014.

  • 'Availability of deep water habitat, based on occurrence of H2S' layer describes the suitability of the bottom areas for the Baltic Sea biota, with regard to oxygen conditions of the near bottom waters. The data used to produce the layer was received from Leibniz-Institut für Ostseeforschung Warnemünde (IOW): - areas (polygons) with hydrogen sulfide (H2S) based on point measurements and modelling. Five time periods / year, for years 2011-2016 (altogether 30 layers). The polygons were converted to raster layers in a way, that for each time period (6 years, 5 time periods each year), areas with H2S got a value 0, other areas got the value 1. All layers were summed, (representing 6 years, 5 time periods each year, maximum value 30) and data was normalised. For more detailed information on the data used, please see Feistel et al. 2016.

  • Screening activities for component Hazardous wastes on the Leningrad and Kaliningrad Region territories have been fulfilled within the BALTHAZAR project. The main goal of the Project BALTHAZAR is assistance in protection of the Baltic Sea from pollution through reducing of loading caused by agricultural entities (AE) and hazardous wastes. The component Hazardous wastes is focused on inventory of large landfills and estimation of current regime in hazardous wastes management. The main task of screening was to study impact of large landfills on environment of the Leningrad Oblast and Kaliningrad Oblast and to reveal the landfills causing the main loading on the Baltic Sea with pollutants. Screening results report on Leningrad: http://www.helcom.fi/stc/files/Projects/BALTHAZAR/ScreeningReportForPublication-May2011.pdf Screening results report on Kaliningrad: http://www.helcom.fi/stc/files/Projects/BALTHAZAR/KaliningradScreeningResults-1.pdf

  • This dataset includes results of Chlorophyll-a indicator which evaluates the eutrophication status of the Baltic Sea area based on chlorophyll-a measurements. The measured average chlorophyll-a is a combined estimate of two types of data: 1) in-situ measurements from oceanographic monitoring data (surface water 0-10 m) and 2) earth observation data. More detailed description on methodology can be found at http://www.helcom.fi/baltic-sea-trends/indicators/chlorophyll-a/ and http://www.helcom.fi/Documents/Eutrophication%20assessment%20manual.pdf This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 open sea sub-basins and division of coastal areas to WFD water types or water bodies). The open sea areas have been assessed based on HELCOM Monitoring data and earth observation data for year 2011 (ENVISAT/MERIS instrument observations with FUB bio-optical model). Results for coastal areas are based on national WFD results. Attribute information: “Code” = Code of the Helcom scale 4 assessment unit "Description" = Name of the Helcom scale 4 assessment unit” “Name” = Name of indicator “Season” = Season of the indicator (Summer = June-September) “Period” = Assessment unit period start and end year (20112015 = 2011 – 2015) “ES” = Indicator value calculated for the assessment unit “STD” = Standard deviation of data used for calculating ES “N” = Number of samples “ET” = Commonly agreed thershold value “ER” = Ratio between ES and ET (in case of indicator with positive response to eutrophication) "ES_SCORE” = Confidence based on the data used for calculating ES "ET_SCORE” = Confidence of target-setting procedure I_SCORE” = Confidence (%) = average of ES-Score and ET-Score "I_SCORE” = Confidence (%) = average of ES-Score and ET-Score “STATUS” = Status of the indicator (“Good”, “Not good” or “Not assessed”) “CONFIDENCE” = Confidence of result based on I-SCORE (“High”, “Moderate” or “Low”)

  • Screening activities for component Hazardous wastes on the Leningrad and Kaliningrad Region territories have been fulfilled within the BALTHAZAR project. The main goal of the Project BALTHAZAR is assistance in protection of the Baltic Sea from pollution through reducing of loading caused by agricultural entities (AE) and hazardous wastes. The component Hazardous wastes is focused on inventory of large landfills and estimation of current regime in hazardous wastes management. The main task of screening was to study impact of large landfills on environment of the Leningrad Oblast and Kaliningrad Oblast and to reveal the landfills causing the main loading on the Baltic Sea with pollutants. Screening results report on Leningrad: http://www.helcom.fi/stc/files/Projects/BALTHAZAR/ScreeningReportForPublication-May2011.pdf Screening results report on Kaliningrad: http://www.helcom.fi/stc/files/Projects/BALTHAZAR/KaliningradScreeningResults-1.pdf

  • This indicator evaluates the eutrophication status of the Baltic Sea area based on water clarity measured by secchi depth during summer. The measured average secchi depth (in meters) is based n in-situ measurements from oceanographic monitoring data for 2011-2015 summer months (June-September). More detailed description on methodology can be found at HELCOM Core indicator report (http://www.helcom.fi/baltic-sea-trends/indicators/water-clarity) and HELCOM Eutrophication assessment manual (http://www.helcom.fi/Documents/Eutrophication%20assessment%20manual.pdf) This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 open sea sub-basins and division of coastal areas to WFD water types or water bodies). The open sea areas have been assessed based on HELCOM Monitoring data and results for coastal areas are based on national WFD results. Some of the open sea areas have not been assessed due to lack of commonly agreed threshold value. Attribute information: “Code” = Code of the Helcom scale 4 assessment unit "Description" = Name of the Helcom scale 4 assessment unit” “Name” = Name of indicator “Season” = Season of the indicator (Summer = June-September) “Period” = Assessment unit period start and end year (20112015 = 2011 – 2015) “ES” = Indicator value calculated for the assessment unit “STD” = Standard deviation of data used for calculating ES “N” = Number of samples “ET” = Commonly agreed thershold value “ER” = Ratio between ES and ET (in case of indicator with positive response to eutrophication) ES_SCORE” = Confidence based on the data used for calculating ES ET_SCORE” = Confidence of target-setting procedure I_SCORE” = Confidence (%) = average of ES-Score and ET-Score “STATUS” = Status of the indicator (“Good”, “Not good” or “Not assessed”) “CONFIDENCE” = Confidence of result based on I-SCORE (“High”, “Moderate” or “Low”)

  • This indicator evaluates the eutrophication status of the Baltic Sea area based on dissolved inorganic nitrogen (DIN) concentration. The measured average DIN is based on in-situ measurements from oceanographic monitoring data for winter period (December-February) 2011-2015 for NO2 + NO3 + NH4 concentration (umol/l), surface water (0-10 m). More detailed description on methodology can be found at HELCOM Core indicator report (http://www.helcom.fi/baltic-sea-trends/indicators/dissolved-inorganic-nitrogen) and HELCOM Eutrophication assessment manual (http://www.helcom.fi/Documents/Eutrophication%20assessment%20manual.pdf) This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 open sea sub-basins and division of coastal areas to WFD water types or water bodies). The open sea areas have been assessed based on HELCOM Monitoring data and results for coastal areas are based on national WFD results. Attribute information: “Code” = Code of the Helcom scale 4 assessment unit "Description" = Name of the Helcom scale 4 assessment unit” “Name” = Name of indicator “Season” = Season of the indicator (Summer = June-September) “Period” = Assessment unit period start and end year (20112015 = 2011 – 2015) “ES” = Indicator value calculated for the assessment unit “STD” = Standard deviation of data used for calculating ES “N” = Number of samples “ET” = Commonly agreed thershold value “ER” = Ratio between ES and ET (in case of indicator with positive response to eutrophication) ES_SCORE” = Confidence based on the data used for calculating ES ET_SCORE” = Confidence of target-setting procedure I_SCORE” = Confidence (%) = average of ES-Score and ET-Score “STATUS” = Status of the indicator (“Good”, “Not good” or “Not assessed”) “CONFIDENCE” = Confidence of result based on I-SCORE (“High”, “Moderate” or “Low”)

  • Regional hunting numbers for Ringed seals 2011-2014.

  • Digitized from Mariners’ Routeing Guide Baltic Sea ISBN 978-3-89871-771-7 (http://www.helcom.dk/map/). The line features are divided in categories, indicated by the the ZONE_TYPE attribute: 0 - Deep water route areas; 1 - Deep water route center line; 4 - Recommended route center; 6 - Traffic separation line; and 7 - Traffic separation scheme.