The CLIVAR Program

So I have talked a lot about what I am doing out on the ocean but I want to clarify what exactly I am a part of. CLIVAR (Climate and Ocean: Variability, Predictability and Change) is a repeat hydrography program whose mission is to understand the dynamics, the interaction, and the predictability of the coupled ocean-atmosphere system. To this end it facilitates observations, analysis and predictions of changes in the Earth’s climate system, enabling better understanding of climate variability and dynamics, predictability, and change, to the benefit of society and the environment in which we live. What that means is this. Ships are sent out every 10 years to follow the same track and collect water samples. These samples are analyzed to determine the changes in their chemical and physical properties that have occurred in the last decade. From these changes, we can track climate change, observe the circulation of water in the ocean, and see the effects of humans on the global oceans. 

The CLIVAR lines. Ours (P16) is the white highlighted line. I got on at Hawaii and headed north to Alaska. 

54.9N 145.8W

The End of the Line

We did it! (fire confetti cannon) The Ronald H. Brown and all of its crew and scientists have made it to the end of the P16N line. The line ends at 56.44N 153.342W, just a couple of miles south of Kodiak, Alaska. All of the scientists are thrilled to have accomplished this goal. We have sampled 76 stations and take up over 20064L (5300 gallons) of water to sample from the ocean at depths of up to 5900m (19357ft). We have battled strong winds, heavy rain, thick fog, exhaustion and cold in order to analyze the chemical and physical properties of the ocean... and it has all been worth it. The data we have collected in the last 4 weeks will be used by hundreds of scientists from around the world to better understand our oceans and how they are changing. And I can not be more proud to be a part of such an endeavor. I have gotten a chance to work with an amazing group of individuals, all of whom excel in their fields. I have gotten to spend 4 weeks out on the open ocean and see some amazing things. And the best part is, ITS NOT OVER YET!

(Most of) The terrific science crew from P16N leg 2

Yes thats right, completing the P16N line was the primary objective of this cruise, but we have another week and a half before we are due in Seattle. We are now going to begin our occupation of the P17 line that crosses the Gulf of Alaska. This track hasn't been sampled in 20 years and so it will be fascinating to see how things have changed. With any luck, we will be able to complete the 16 stations of this line and get back to Seattle without any trouble. Everyone aboard the cruise is now a veteran and we are running like a well oiled machine (which is ironic because the ship is constantly leaking oil). I am looking forward to this last week on the Brown and to getting back to dry land. The push to the end has just begin.

Just another sunset

Shrink Cup

Shrink Cup! No its not a drinking game. Its what happens when scientists do arts and crafts. The principle is pretty simple. Styrofoam is a polymer chain material that is filled with air holes creating a substance that is light but sturdy. However, due to the air pockets, the styrofoam is not actually as solid as it may seem. When you, say, apply 5000 dbars (725,000 psi) of pressure to a styrofoam cup, it forces the air out of the cup and shrinks the styrofoam. One of the many traditions on oceanographic cruises, is to use this principle to shrink decorated cups by attaching them to our CTD and sending them to the bottom of the ocean. It is a tradition that I have been looking forward to all crusie. Styrofoam cups are decorated using sharpies and put into a laundry bag. The bag is then attached to the CTD and poof, shrink cup! The Cups often get misshapen in the process but the result is still pretty cool. I had everyone in the science party sign my cup before sending it down. Check out the results.

Shrink Cup results. The blue line is for scale

You can also make an octopus by cutting the top of the cup into strips. 

Weather update: Well we are still surrounded by fog. Today, for the first time, we had about 45 minutes of sunlight and blue skies before the fog closed back in. It is so thick now, it feels as if we are in a cloud. We are all hoping it clears up tonight before we get to Kodiak, Alaska because everyone is hoping for some sights of land.

The fog

Moral is up as we wind down the last stations of P16N. We are approching our most northern station. After tonight, we will have a 15 hour steam back down south before we pick up the P17 line the cuts across the Gulf of Alaska.

56N 153W

Safety Drills

In school, we have all had to be part of fire drills. And most of a time, they are kind of a waste. Everyone knows how to walk downstairs and go outside when an alarm rings. But, what do you do if there is an emergency at sea. Today we had our weekly abandon ship and fire drills. And I am, for the first time ever, quite glad of the drills. Because at sea, you can't simply go downstairs and walk outside in case of a fire. The fire department can't send a truck over in five minutes to put out a fire. So it is important that you know where to go and what to do incase of an emergency at sea. Of course the ship is adequately equipped with life rafts. But with the nearest point of land being 650 nautical miles (748 miles) away, there is more to do then just hop in a dingy. In the cold waters of the North Pacific, a full body immersion suit must be worn to protect against hypothermia. These immersion or "gumby" suites are a process to get into and so, as part of the drill, we practice putting them on. An abandon ship call would only be made if the ship was sinking. Fire crew are trained to put out fires on the ship and most other emergencies can be solved without needing the crew to abandon the ship. All the same, it is good to know what to do.

Ben in a "gumby" suit

We have been beset with fog today. It has been so thick that we have been sounding our whistle once a minute to alert any ships of our presence. Its eerie because you cannot tell where the sun is. Everything is the same color of grey. Even the water is grey. But in a way it is peaceful. All of the veteran sailers are saying we have been amazingly lucky with the weather. We are passing through the middle of a storm track but we seem to have slipped between two storms and so should continue to have good weather for a while. Everyone is hoping this will last. As exciting as a storm would be, 15m waves do not sound pleasant.

54N 152W

Some More About the Science

So on top of the CTD cast water samples we collect and analyze, there are a number of other fascinating pieces of science we are performing on the cruise. Every night, a special net known as a bongo net (because it looks like two bongo drums) is deployed over the sides to collect plankton. As we move farther north, the plankton species have changed greatly. We have collected krill, copepods, arthropoda, shrimp and crab larvae, fish larvae, and many other species of plankton. The bongo nets are always deployed at night because plankton migrate to the surface at night to feed in the cover of darkness.

Jessie preparing her bongo net. Each net collects plankton of different sizes.

Another unique instrument we have on board is the Underwater Vision Profiler (UVP). This automated camera is attached to the CTD and photographs organisms that drift by as we deploy the CTD to the depths. The UVP brings back some amazing photos of small organisms that look like aliens from another world. The photos are analyzed and used to determine the extent and variety of plankton present at different depths along the cruise track. The distribution of plankton can tell us a lot about the components of the seawater and the properties of the ecosystems in the North Pacific.

A collage of some of the images taken by the UVP.

As we steam along, we are also deploying ARGO floats. These autonomous oceanographic vehicles (AOVs) have an inflatable bladder that allows them to sink to 1000m and collect data. They float with the current and track water movement. Once every 2 or 3 days, the AOVs surface and relay their position to the ARGO satellites allowing researchers to track ocean currents and in situ water properties.

Mar preparing to throw the ARGO float overboard. 

51N 152W

Halfway Day!

We are officially half way! Today marks our 17th day at sea. And with that marker, the crew has been reflecting on the cruise so far. Everyone agrees that this has been a great trip. Good people, fair weather, science. What more can you ask for? At the same time, it is becoming clear that the exciting adventure spirit that accompanied everyone at the beginning of the cruise has been replaced with a more mellow attitude. On day one, everyone was jittery with anticipation of getting underway. Today, the science party is in the groove of collecting and analyzing. That's not to say that we are tired and worn down. Quite the opposite. Spirits are high. We have come up with fun little activities to pass the time. We have had some fashion days such as denim day and hawaiian shirt day. In the gym, we are attempting to burn a man (burn a combined 150,000 calories). We even had a 2km rowing contest on the erg. I have also been using this time to catch up on some reading I was unable to accomplish during the school year. Additionally, I've gotten quite good at sudoku.
We are spending less time outside due to the cooler and rainier weather. No more sunny afternoons in the pool. But everyone still heads outside to watch the sunset and we are still hoping to see a whale. We have a couple other exciting events to look forward to but more on that later.

46N 152W

Red Sky at Morning...

An update:

We are now thoroughly entrenched in our work. As we approach the halfway point in the cruise, all of the scientists and cruise have settled into the daily routine of sampling and analyzing, eating, staying fit, sleeping, and having a bit of fun. And yet, even with every day consisting of the same basic elements, every day also brings new sights and adventures. A couple mornings ago, I was sampling at about 4:00 and the sun was just starting to rise. The result was this amazing red sky, so crimson it looked unnatural. Sunrises and sunsets on the Pacific are usually a pretty amazing sight but this red was special.

Sampling 24/7 also allows for some great stargazing. Last night, the moon rose quite late allowing for several hours of amazing starry displays. You can clearly see the Milky Way galaxy out here and shooting stars are not uncommon as well. We have yet to see an aurora borealis  but we are hopeful. Along with last nights stars, came a flock of storm petrels. These small pelagic birds swarmed around the boat, feasting on small fish that were schooling at the surface. A couple of the pedrals even took a rest on the boat.

The winch at night

Our nice warm Hawaii weather has changed a bit. As we move farther north, the seas are getting rougher and the skies are more cloudy. We have yet to hit a major storm but today, for the first time, we had significant swells that buffeted the boat. Accompanied by a light rain, sampling was not quite as luxurious as it had been further south, but spirits are still high. One amazing benefit about being on the open ocean is you can watch the storm fronts roll in from a distance. I took this photo a couple days ago showing a wall of clouds moving from the east. This massive front stretched from horizon to horizon and looked to be a thousand feet tall.

Some 5ft white caps

A large front moving in. The dip was due to the boat movement. 

We have also had some more friends come to say hello. On Monday, two sea lions found our ship and circled around it while we sampled. They played with each other and jumped at the boat a couple of times. We were amazed to see these animals so far from land but it goes to show how amazing they are at swimming.

Two curious sea lions

Tomorrow we reach the halfway point in the cruise. It is clear that everyone has their eyes set on Seattle and land but everyone is in good spirits and having a good time. We are hopeful that the weather will remain manageable but we will take whatever comes our way.

44.5N 152W