Day 4 already? How did that happen??
I’m happy to report ALL our instruments are now in the water and happily recording marine mammals in the Catalina Basin (lots I hope!).
Day 1 we did some testing at SWFSC, and got everything prepped for our transit out to the basin. Testing went as planned, and so we loaded the boat and had some time to kill at the harbor. Ate good seafood and hung out in the sun. I got sunburned already of course.
At about 7 pm we departed San Diego Bay for our overnight transit out to the basin. We decided (we?? it was Holger’s idea…) to get up and start deploying instruments as soon as we arrived on site, which was scheduled to be 4 AM. Yup. Moonlight deployment. That was a first, but fortunately the moon was full.
The currents in this area can be complicated, so we had come with somewhat of a plan, but knew we would have to play it by ear. So when we first arrived we deployed one of Jay Barlow’s floating drifters (DASBR) and watched its drift for about an hour. We deployed the first mini-HARP at its planned location, and then after assessing the drifting buoy, we went to deploy the second mini-HARP. Fortunately we deployed it right where we thought we would! That made things for the glider much easier. After getting both HARPs in, we picked up the first DASBR and drove back south to deploy a whole array of 4 DASBRs. This is how we will localize the animals, by using triangulation of calls recorded on the different instruments.
While this was going on, I got to work prepping the QUEphone, and this is where things finally started to NOT go perfectly as planned. The first QUEphone just would not sink! Weird…wanting an expensive piece of electronic equipment to sink, but that is exactly what we wanted. The QUEphone is designed to sink up to 2000 m, and drift along with the currents for 24 hours, then come back up to the surface and check in. Well, when it stays at the surface we can’t record anything, and that is not what we want. So we brought that one back on board. Lucky for us we brought a second QUEphone just in case. Unlucky for us, it also had issues, but it had communication issues. We tried deploying this one as well, waited a while, and ended up recovering it when it too wouldn’t dive and was having iridium communication problems.
And last, but certainly not least, we deployed my beloved glider, SG607, aka Will. Will got a new sticker before deployment, and this deployment went super smoothly! In large part due to the big swim step on the back of the boat where we could carefully lower the glider and hold it off while we did some final tests, and also with many thanks to Anatoli Erofeev, a glider pilot in CEOAS at OSU who has basically taught me everything I know about glider piloting that isn’t in the pilot binder (which is possibly more valuable when it comes to troubleshooting 🙂
After all those (mostly) successful deployments, we headed to Wrigley Marine Science Center, where we will be based for the next two weeks. We arrived earlier than we had planned (thanks to our 4 am start…) but that was good because, well, we had A LOT of gear to unload and unpack.
So, this post is turning out to be more about Day 2 then Day 4 huh?
Well Day 3, a field team of Danielle, Jay, and Dave went out to move the 4 DASBRs back down south (They had drifted a perfect 12 km NE and needed to be reset) and deployed two more.
Day 4, Dave, Jay, and I went out and recovered/redeployed 6 DASBRs and deployed 2 more. PLUS we deployed the QUEphone – yay!!!! It worked, I’m stoked, but also very tired, and will write another post about this tomorrow.