History of the Site:

Operated since February 2007. Atmospheric and ocean datasets since 2007. Bottom platform added in 2008.

Parameters measured:

Atmospheric:

Parameter	Depth (m)	Sensor	Frequency
Wind speed/dir	surface buoy	Young 04106-19, JR MA	3hrs
Air pressure	surfsace buoy	Vaisala PTB 220A	3hrs
Wave height	surface buoy	Fugro OCEANOR Wavesense	3hrs
Air temperature	surface buoy	Omega	3hrs

Ocean:

Parameter	Depth (m)	Sensor	Frequency

Temperature	Surface, 20,50,75,100,250,400,500m	Aanderaa 3919A/Seabird 16plus-IMP C-T/Seabird 37 IM C-T	3hrs
Salinity	Surface, 20,50,75,100,250,400,500m	Aanderaa 3919A/Seabird 16plus-IMP C-T/Seabird 37 IM C-T	3hrs
Currents	1m	Nortek Aquadopp	3hrs
Pressure	250m	Seabird 37 IM C-T	3hrs

Seafloor: 1670m

A bottom platform was added through the EuroSITES programme in 2008 with Termperature and Salinity datasets since 2008 and Oxygen time-series since 2009.

Parameter	Depth (m)	Sensor	Frequency
Tsunami Bottom Platform Temperature	1670m	Seabird 16plus-IMP C-T	3hrs
Tsunami Bottom Platform Pressure	1670m	Seabird 16plus-IMP C-T	3hrs
Tsunami Bottom Platform Diss. Oxygen	1670m	Aanderaa Optode	3hrs

Enhancement/Modifications planned within EuroSITES:

Enhancement: CT sensors at depths > 100m. Dissolved oxygen to bottom platform.

Contacts:

Principal Investigator: Dr. Kostas Nittis and Dr. Vasilis Lykousis HCMR, Athens, Greece

Links to related websites:

Data: http://www.poseidon.hcmr.gr/eurosites/pylos_data.php

Related EuroSITES (Poseidon E1-M3A) observatory in the Aegean: http://www.poseidon.hcmr.gr/eurosites/E1M3A_data.php

EuroSITES is a FP7 Collaborative Project coordinated by the
National Oceanography Centre, Southampton, UK

Call FP7-ENV-2007-1, grant agreement N° 202955
Sub-Activity 6.4.1. Earth Observation; Monitoring the ocean interior, seafloor, and subseafloor