Olkiluoto Biosphere Description 2006 (pdf) (4.1 MB) - Posiva

24Table 3-4. Potentially useful site data currently not available and identified possibleimprovements to the existing data sets.DomainDataClimate No identified lacks in data per se; however, the time series fromthe site are rather shortTopography No very detailed information (lines in 1 m and 5 m steps)Overburden Soil stratigraphy data does not cover whole Olkiluoto siteSoil water Data currently spatially and temporally sparse (two locations,years 2004–2005)Terrestrial ecosystems Vegetation inventories cover the main island only No vegetation cover analyses on shore meadows Mires are few, detailed analyses from Olkiluodonjärvi and somealder and spruce swamps only No site-specific biomass measurements No site-specific measurements of animal weights and contents Almost no site-specific data of fauna by different habitats Some fauna sectors essential for carbon balances have not beeninventoried at allSea sediments Acoustic-seismic line grid sparse and not covering the full studyarea Better data needed from shallow areas No site-specific data of the chemical composition of sediments Erosion/sedimentation areas not knownSea ecosystems Network of water quality, phytoplankton and faunameasurements sparse Phytoplankton data temporally sparse Network of macrophyte measurement lines sparse (located onlyin the target area 3a) Organic carbon has not been monitored Helophytes have not been inventoried No studies or monitoring of zooplankton Little data on currents No site-specific data on the nutrient load from land No site-specific data on the nutrient release from bottomsedimentsLimnic ecosystems Limnic ecosystems currently few, reference areas clearly neededconsidering the future development of the site (see Chapter 11)Land use Up-to-date polygons for exact area calculations on OlkiluotoIsland missing (however, needed tracking data exists butdesultorily), incomplete GIS data on the larger study area at themoment