Typology of Polish marine waters

Abstract The article presents results of expert work carried out within the frame of a contract between the Polish Ministry of Environment and the consortium of four scientific Institutes . The Maritime Branch of the Institute of Mete-orology and Water Management (IMWM MB) from Gdynia and Maritime Institute (MI) from Gdansk have been responsible for the typology of Polish marine waters. The analysis of data collected mainly during more than forty years of oceanographic activity of the IMWM MB allowed to discern the following water categories: -transitional waters including the entire areas of the Szczecin Lagoon, Vistula Lagoon and a part of the Gulf of Gdansk -the internal Puck Bay, called Puck Lagoon, as well as parts of the Gulf of Gdansk and Pomeranian Bay under significant influence of riverine plumes; -coastal waters comprising a band of water defined according to the article 2, par. 7, and taking into account art.2, par.1, of the Water Framework Directive (WFD), excluding the areas of transitional waters; -modified waters comprising waters within the rivers mouth areas along the central Polish coast and corresponding to the issue of internal marine waters in the Polish legislation on marine areas

Hypoxia is increasing in the coastal zone of the Baltic sea

Målet med examensarbetet är att svara på frågan: "Är det resurssparande att öka detaljeringsgraden i BIM-modellen genom virtuellt uppreglade gipsväggar?" Rapporten behandlar en BIM-laboration som genomförts i samarbete med NCC i projektet Signalfabriken i Sundbyberg. Med programmet Lindab Revit Tools (LRT) reglades gipsväggar upp virtuellt och adderades till projektets byggnadsinformationsmodell (BIM). Materialet kvalitetssäkrades vid samgranskningsmöten och användes för att generera A3-handlingar för test i produktion. Testet och handlingen diskuterades med representanter från olika delar av byggprocessen och en reviderad handling utvecklades samt godkändes. Laborationen upprepades med syftet att effektivisera processen och erfarenheterna från detta ledde till att frågeställningen fick följande svar: Ja, om endast komplicerade områden modelleras. Ja, för hela modellen om programvaran utvecklas.Nej, om LRT används för att virtuellt regla upp alla gipsväggar i projektet. Förutom dessa svar innehåller rapporten ett förslag på A3-handling som optimerats för användning i produktion. En lista på rekommenderade förändringar i programvaran. En beskrivning av hela processen för ett område där resursåtgången angetts i tid. Denna rapport riktar sig till läsare med byggingenjörsexamen eller motsvarande kunskapsnivå. This report aims to answer the question: "Can an increased level of detail in the Building Information Model by virtually constructed framing for drywalls save resources?" The report concerns a BIM laboration conducted in collaboration with NCC in the project Signalfabriken in Sundbyberg. Lindab Revit Tools (LRT) was used to virtually construct framing for drywalls that was added to the building information model of the project. The virtual material was subject to clash detection analysis and then used to generate A3-sheets for use in the production line. The result of this test and the quality of the sheet was discussed by representatives from different parts of the construction process. A revised sheet was formed from this discussion and then approved by NCC. The process was repeated to find the most efficient process and the experiences from this led to these answers for the original question: Yes, when only complex areas are modeledYes, if all areas are modeled and LRT is improvedNo, if LRT is used to virtually construct all dry walls in the project Besides these answers the report includes: a suggestion for a sheet optimized for use in the production line, a list of improvements for LRT and a description of the process in full for a curtain area together with the details of how much time resources were spent. This report is directed towards construction engineers and readers with equivalent level of knowledge

Hypoxia is increasing in the coastal zone of the Baltic sea

Hypoxia is a well-described phenomenon in the offshore waters of the Baltic Sea with both the spatial extent and intensity of hypoxia known to have increased due to anthropogenic eutrophication, however, an unknown amount of hypoxia is present in the coastal zone. Here we report on the widespread unprecedented occurrence of hypoxia across the coastal zone of the Baltic Sea. We have identified 115 sites that have experienced hypoxia during the period 1955-2009 increasing the global total to ca. 500 sites, with the Baltic Sea coastal zone containing over 20% of all known sites worldwide. Most sites experienced episodic hypoxia, which is a precursor to development of seasonal hypoxia. The Baltic Sea coastal zone displays an alarming trend with hypoxia steadily increasing with time since the 1950s effecting nutrient biogeochemical processes, ecosystem services, and coastal habitat

Hypoxia Is Increasing in the Coastal Zone of the Baltic Sea

Hypoxia is a well-described phenomenon in the offshore waters of the Baltic Sea with both the spatial extent and intensity of hypoxia known to have increased due to anthropogenic eutrophication, however, an unknown amount of hypoxia is present in the coastal zone. Here we report on the widespread unprecedented occurrence of hypoxia across the coastal zone of the Baltic Sea. We have identified 115 sites that have experienced hypoxia during the period 1955–2009 increasing the global total to ca. 500 sites, with the Baltic Sea coastal zone containing over 20% of all known sites worldwide. Most sites experienced episodic hypoxia, which is a precursor to development of seasonal hypoxia. The Baltic Sea coastal zone displays an alarming trend with hypoxia steadily increasing with time since the 1950s effecting nutrient biogeochemical processes, ecosystem services, and coastal habitat