First full week of experiments ended successfully! :-)

As you see, we have increased the rotation rate of the tank! From 1 rotation in 50 seconds to now 1 rotation in 30 seconds. Which means that at the edge of the platform, where we get on and off, the difference in speed between the room and the moving platform is 5,6 km/h. For security reasons we don’t have any movies of people getting on or off: people really need to concentrate on where they are going! And even though Elin recently said that we don’t get sick by the rotation of the platform (link), I can say confidently that that doesn’t hold for all of us any more 😉

But with two days and nights per minute now, it’s not surprising that time flies! Our first full week of experiments is over, and it was quite a success! We’ve been in Grenoble for 1.5 weeks out of our 2 months now, and it’s time for some changes in the team: Elin and I are going to leave for a while (we’ll be back soon!) and Nadine and Lucie will be joined by new team members soon! But of course, we will keep you updated on what is happening here in Grenoble!

For now: Happy weekend, everybody!

Your team in Grenoble — for the first 1.5 weeks: Mirjam, Elin, Lucie and Nadine (from left to right). Photo: Samuel Viboud

Rotating a whole swimming pool!

We have arrived at the Coriolis platform in Grenoble and it is seriously impressive. When you have heard us talk about a 13-meter-diameter swimming pool that is being rotated, you could not have possibly imagined this GIANT 13 METER DIAMETER SWIMMING POOL THAT WILL BE PUT INTO ROTATION! At least I know that even though I theoretically knew the dimensions, I had absolutely no idea of how massive the structure would actually be when you stand in front of it or even climb in.

Let me show you around a little.

This is what the whole thing looks like when seen from the outside. It’s very difficult to imagine the scale of it all, but you can see the dark floor at the bottom of the tank, then on the left, there is a second level, and a little further up a third one. Those are all normal floors — on the second level there even is a little office!

When we climb down as low as possible, we see how the whole tank rests on all kinds of very heavy duty structures. And it must be, considering that it is supporting not only a lot of moving water, but also an office! I can’t wait to see everything rotating! Here you can maybe gauge the scale a little from the stair cases and handrails?

Below, the green metal wall (inside of that black-and-yellow striped zone, which is what will be turning, and the black safety guard) is the outside of the actual tank, that will contain the water later.

This is the office space on the second floor I talked about: you can kinda imagine the size of the tank underneath from the curvature of this room. And this will be rotating with the tank!

And here you see Elin down in the tank. The clear structure to her feet is the topography of Antarctica that we will use in the first experiment (more on that later).

When you look up from the tank, you see a lot of scaffolding and two very nice technicians (can you spot both?) installing fancy camera equipment for us (more on what we are going to do with those in later posts).

So this is where we’ll be for the next couple of weeks!

The first thing we did today was to measure the topography so we have a reference for what is actually in the water later (rather than what we thought there should be). You see Elin (on the left) sitting on the bottom of the tank, and Nadine (on the right) climbing on the topography.

And now we are busy sorting out all the things like access to the servers so we can see the data we’ll be measuring, VPN connections so Matlab finds its licence back home, and all the other fun stuff. But we will obviously keep you informed of every exciting new development, the super awesome science, and we are hoping to start calibrating the cameras later today! 🙂

Welcome!

Welcome (back) to my blog! You’re all invited to join me for a new oceanographic adventure, which will be very different from the ones I’ve share with you previously (Antarktisbloggen)! This time I’m not going to Antarctica, I’m not even going on a ship. Instead, I and my colleagues will meet up in Grenoble, France – far away from any ocean or sea (but close to smelly cheese and “croissants” :-)) . So, why go to Grenoble to study oceanography?

The reason is this tank:

The Coriolis tank. from: http://www.legi.grenoble-inp.fr/web/spip.php?rubrique175

It is a very special tank – not only is it big (13 meter in diameter), but it is rotating… sort of like a combined merry-go-round and a swimming pool! If you want to know what we are doing and why… then follow the blog!

And while you wait for us to give you a real tour of the laboratory and the tank (we’re not travelling down until next week) you can go on a virtual one here:

http://www.legi.grenoble-inp.fr/web/spip.php?rubrique175

Cheers for now, Elin

Ps… this time the blog will be in English only… This is because I’ll get help from my collegues in Grenoble to write and because this time we will address adults … but we are already planning more blog projects for children, schools and teachers.  They will be in Norwegian (and possibly English, Swedish, German…) and feature the cute little penguin below! Stay tuned!

Nadine, Elin, Olaug and Mirjam (little square) planning blogs on skype. You’ll hear more from Nadine and Mirjam later – they will join me in Grenoble!