The system is operational since March 2008, providing unique months-long time-series at high frequency (hourly and 15 min) of: Currents (every 80 cm along the water column); Water level; Water Quality: temperature, turbidity, dissolved oxygen, salinity, chlorophyll and pH

The data are available publicly at: http://doi.pangaea.de/10.1594/PANGAEA.845750

For detailed information, see:

• Garel E, Ferreira Ó, 2015. Multi-year high-frequency physical and environmental observations at the Guadiana Estuary. Earth System Science Data, 7(2), 299-309. |
• Garel E. & Ferreira Ó, 2011. Monitoring estuaries using non-permanent stations: practical aspects and data examples. Ocean Dynamics 61, 7, 891-902.
• Garel E. , Nunes S., Neto J. M. Fernandes R., Neves R., Marques J. C., Ferreira Ó., 2009.The autonomous Simpatico system for real-time continuous water-quality and current velocity monitoring: examples of application in three Portuguese estuaries. Geo-Marine Letters, 29, 5, 331-341.

Contact: Dr. Erwan Garel (egarel@ualg.pt)