|Good morning Michel!|
So what have we done since last week? The day after the excursion, we decided to install the water level loggers in the streams as the weather forecast said it would rain.
|Bob and Robbert installing the water level sensor in the Presa Velha stream|
Other students tried to maximize their efficiency by driving as close as possible to their Presa Velha River discharge outlet in their rental car, that is not supposed to go off road. This is all very nice when the Cretaceous clay (C5 formation for insiders) is dry, but not when it starts raining and the clay decides to turn into a slippery surface, steering the driver (not Rosa!) into a ditch.
|Digging was no good, so friendly farmers had to pull out a student's car while Rosa shouted out her joy in her best Portuguese|
|Joris programming a 1990s VU made water level logger, the best you can get!|
|Looking into an old well to fish and a frog.|
|Thomas having a go at cleaning VU4 piezometer|
|Mesas group with their first piezometer still to be decapitated.|
|Patricia, Maartje and Louise working on the meteorology tower|
|Seife and Corne installing the tipping bucket rainfall recorder - kids play - just practice for the real thing...|
|After practicing on the rain gauge, Seife manages to put the casing into the soil without using his hands, while Patricia and Louise look on in admiration...|
|Wind vane should point to the North.|
Finally, let's not forget our BSc students who were still busy on their tiny island, working away with the VU spiral auger to find and sample fresh water. For the connoisseurs, they found a shallow layer with an electrical conductivity of 825 microSiemens/cm, which is drinking water quality!
|Marijn and Valerie in pursuit of fresh water|