European Directory of Marine Environmental Data (EDMED)

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Data set name

Oceanographic data collected by anchored multi-parametric buoys in Aegean and Ionian Seas (1999 - present)

Data holding centreHellenic Centre for Marine Research, Institute of Oceanography (HCMR/IO)
CountryGreece  Greece
ProjectPOSEIDON - Marine Environmental Monitoring Forecasting and Information System for Greek Waters; Operational use, maintenance and co-operation of the POSEIDON system; A Second Generation Monitoring and Forecasting system for the Eastern Mediterranean Sea: POSEIDON-II
Time periodSince 1999 - present
Geographical area

Saronikos Gulf (Central Greece), Lesvos island, close to mount Athos peninsula, Skyros isl., Skiathos isl., Mykonos isl., Santorini isl., Cretan Sea, Messiniakos gulf, close to Pylos (Southern Ionian), Zakynthos isl.


Transmittance and attenuance of the water column; Chlorophyll pigment concentrations in water bodies; Dissolved oxygen parameters in the water column; Wind strength and direction; Wave direction; Salinity of the water column; Horizontal velocity of the water column (currents); Temperature of the water column; Wave height and period statistics


Data are collecting through the operational oceanography monitoring buoy network that operates in the Greek Seas since 1999. The system is implemented in two phases: during the first implementation period the geographical coverage of the network was focused in the area of Aegean Sea while the measuring capabilities of the buoys were focused mainly on the surface layers (down to 50meters depth). During the second implementation period the network was geographically extended to cover also the Ionian Sea while buoys with deep monitoring capabilities (down to 1000 meters) were added to the network.

OriginatorsHellenic Centre for Marine Research, Institute of Oceanography (HCMR/IO)
Data web site
OrganisationHellenic Centre for Marine Research, Institute of Oceanography (HCMR/IO)
ContactDr L. Perivoliotis

Hellenic Centre for Marine Research, Institute of Oceanography (HCMR/IO)
46.7 km Athinon-Souniou Av. P.O.Box 712


Collating centreHellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC)
Local identifier6052003
Global identifier1396
Last revised2015-07-22