Meanwhile, on the beach...

The second part of our bachelor thesis is a groundwater study between Ria the Aveiro and the sea. Before we could start this study we had to find out where the best place along the coast is, where the dunes and the lagune are not too far from each other and where’s space enough to use the Electro-Magnetic methods. We had to wait for the bus of Maarten and Boris with all the materials. And this seems to be the perfect place.

Andreas, Jeremy and Roos-Anne. Fieldwork = hard working...
To find out where the fresh water is and how the fresh and salt groundwater move during the tides we drilled two piezometers, one near a freshwater well in a field next to the dunes and one near the river.

Roos-Anne drilling a hole for the piezometer near the freshwater well.
These piezometers can be used for different kind of measurements this year, but also next year, the year after etc. We make two more piezometers this week to find out where the fresh water comes from.

Finishing a piezometer near the Ria.
With the EM-39, an electromagnetic method, the conductivity of the water is measured. The EM-39 had to be calibrated.

Maarten as the Statue of Liberty, calibrating the EM-39.
Tomorrow we probably will do a measurement at the beach with Boris, so we can make a profile of the groundwater from the beach to the dunes, the field ending at the river. Still enough research to do...

Ciao, Roos-Anne & Inge