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poseidon system skip to main content english greek english greek main navigation home components observing components buoys cabled seabed observatory repeated cruises ferrybox system argo floats gliders hf radar tide gauges forecasting components hydrodynamics waves meteo ecosystem oil spill model data center operational center data flow tools supporting facilities calibration lab buoys lab gliders lab services ocean data in situ data database apis satellite maps forecast weather forecast sea state forecast sea level forecast ocean forecast ecosystem forecast static version forecasts previous forecasts mobile app outreach news media about us evolution projects eu infrastructures publications our team contact download poseidon app search poseidon system monitoring forecasting and information system for the greek seas read about record breaking waves across the long term warming μarine new research on marine heatwaves literature review on med marine reanalyses a time first ferrybox based co2 interview on the lack of funding students in ocean current data forecasts weather wind air temperature 8 parameters ocean sea temperature circulation 4 parameters waves waves height direction 2 parameters ecosystem chlorophyll a nitrates 11 parameters sea level elevation 3 parameters models documentation 7 models forecasts observations observations the online data page is offering access to the most recent data recorded by the satellites and in situ platforms in the mediterranean sea poseidon monitoring network satellite maps activities projects εu infrastructures initiatives poseidon team represents hcmr at several eu infrastructures and initiatives in the operational oceanography field emso the european multidisciplinary seafloor and water column observatory emso is a distributed research infrastructure consisting of fixed seafloor and water column observatory no emso euroargo the euro argo research infrastructure organizes and federates european contribution to argο network and it is part of the european esfri roadmap on large research infrastructures euroargo copernicus the copernicus marine environment monitoring service cmems is one of the six pillar services of the eu european union copernicus programme the cmems provides regular and systematic reference information on the physical and biogeochemical ocean and sea ice state for the global ocean and the european regional seas copernicus himiofots the hellenic integrated marine inland water observing forecasting and offshore technology system himiofots is a national scale research infrastructure ri which includes integrated approaches in marine observation and forecasting systems coastal monitoring and an innovative hydro environmental monitoring and information network himiofots eurogoos eurogoos is an association of national governmental agencies research organizations and private companies committed to oceanography within the context of the intergovernmental global ocean observing system goos eurogoos mongoos the mediterranean operational network for the global ocean observing system mongoos has been established in 2012 to further develop operational oceanography in the mediterranean sea mongoos download poseidon app download the app to get the interactive map of meteorological wave hydrodynamic and ecosystem forecasts the forecasts are covering the next five days links eurogoos mongoos copernicus cmems in situ bigdataocean oceangliders links euroargo greekargo emso eric himiofots ego poseidon services weather forecast data base insitu data apis contact info poseidon system 46 7 km athens sounio anavyssos attika 19013 greece poseidon hcmr gr copyright poseidon system 2026 all rights reserved terms of use cookies policy