Air Date: Week of November 16, 2007
Aquarius with the gazebo - the location where the divers can fill their air tanks when they're running low.(Photo: DJ Roller/Liquid Pictures)
A group of marine biologists are living and working deep beneath the surface of the sea in a research station off the coast of Florida. They're studying the health of nearby coral reefs and broadcasting their findings live to students all over the world. Dr. Mark Patterson is the chief scientist of the mission. He joins us from 20,000 millimeters under the sea.
CURWOOD: Studying the effects that a changing climate has on our oceans is exactly what a team of scientists is doing off the coast of Florida. They're actually living beneath the surface of the sea in a laboratory called Aquarius. This team of Aquanauts—that’s right, Aquanauts—is studying coral reefs round the clock for five days, and broadcasting live ‘underwater classroom’ sessions to students across the world via the Web.
[DIVER TAKES A BREATH AND ANNOUNCES ‘I’M BACK OUT HERE ON CONCH REEF AND I WANT TO SHOW YOU SOMETHING THAT MAKES AQUARIUS SPECIAL IS THAT WE CAN DO EXPERIMENTS FROM THE SEA FLOOR’]
CURWOOD: Aquanaut Dr. Mark Patterson is the chief scientist for the Project SeaCAMEL mission. He’s on the line from Aquarius. Hello from those of us above the water, Mark.
CURWOOD: Or it’s about 60 some odd feet, in other words.
PATTERSON: Yeah, the base is down at 60 feet and then the hatch that we—the moon pool that we enter and leave the habitat from is about 50 feet deep. And we can range as deep as 130 feet deep around the habitat.
CURWOOD: So, tell me what it’s like living down there and what’s the most difficult thing about living in something that’s what—maybe the size of a school bus?
CURWOOD: Wait a second—underwater weather?
PATTERSON: Yeah, we see the ebb and flow and the tides and the currents. We get to see how the ocean changes in a way that you don’t appreciate unless you’re living here.
CURWOOD: How does living in Aquarius offer better research as opposed to doing daily dives?
PATTERSON: There’s two aspects. One is that we can dive a full workday and not have to worry about decompression illness when we go to the surface. So we can get done in ten days what might take us six months or more diving from the surface. The second advantage to doing science here is that we have power from the habitat and we’ve got computers inside the habitat so we can do more sophisticated types of experiments.
PATTERSON: Oh, it’s an ever-changing show at night so there have been some missions in Aquarius where they specifically look at aspects of the biology or the chemistry of the reef that change in the dark hours.
CURWOOD: Now, tell me about your helper there. In particular you have a robotic fish named ‘Fetch?’
PATTERSON: That’s right. Fetch is a free-swimming computer. It’s got no tether, so you program the robot on a mission and then send it off swimming and it surveys what’s going on in the water column over the reef and it can also survey the animals living right on the bottom.
CURWOOD: So what are your specific goals for research while you’re living in Aquarius?
PATTERSON: Well I’m a veteran user. This is my seventh time here. And in the past I’ve used Aquarius to do experiments on how motion in the ocean affects the physiology of the corals and their allies that live on the reef. So, I’ve set up specialized equipment to investigate how the speed of the water moving past the surface of the corals affects their respiration rate and since they’re half plants with symbiotic algae living inside them, corals also photosynthesize during the day so we’ve investigated photosynthesis.
This particular mission—Project SeaCAMEL—is a short mission, where we’re actually trying to do teaching at the university level from the bottom of the sea.
CURWOOD: Dr. Mark Patterson is the chief scientist for the project SeaCAMEL. CAMEL stands for Classroom Aquarius Marine Education Live, teaching students from 60 feet underneath the ocean. Thank you so much, Dr. Patterson.
PATTERSON: Oh, it’s my pleasure. Thank you.
CURWOOD: For a link to the Project SeaCAMEL website, where you can watch the archived undersea classroom broadcasts, go to our website: loe.org.
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