Journal Entry
Kirsten up closeMy friend, Kirsten and I underwater. Am I diving? Find out below! SmileSmile! Kirsten and I take pics of each other.

New experiences claimed my day. Starting bright and early at 7am, there was a fire drill for our residence hall. Yes, we have to practice those just like everyone else. Thank goodness the temp wasn't brutally cold as I left my room in pj pants and my big red coat. Thankfully, I had left my hiking boots next to my bed so I could quickly get them on. My research colleague did not fair as well coming out in open toe Birks! Yikes, that must have been cold!

Giant SquidGiant Squid display in the dive locker! Clearly someone has a sense of humor here!

In the lab I got to run the power saw and take fun pics of thin sections of ice I was able to cut. More to come on that later in the month. The truly exciting part of my day entailed heading to the dive locker and serving as a dive tender and getting some time in the observation tube. I will do another journal on the observation tube tomorrow! Today's focus is on the diving.

Dive EquipDive equipment being tested… rebreathers, not designed for the cold conditions in Antarctica but in tests, these seemed to work okay. Head gearHead gear for diving.

A big thanks to Rob Robbins who allowed me to come along as a dive tender despite not being "signed" up to do so. Rob is a master diver and married to a fabulous woman, Robbie, that I was lucky enough to meet in Alaska during my training. Rob has made well over 1500 dives into the icy Antarctic waters. He is super friendly and encouraged me from my first week to come down and check out the diving!

Rob RobsonOne dive was finishing and another about to get started. Here, Rob Robbins, in yellow and black suit, heads back to the dive locker as Brenda Konar heads to the dive hut.

Assisting on the dive today is another legend in Antarctic diving, Brenda Konar. Her dive tender is another great, John Heine, a diver for over 45 years – which is longer than I have been alive! The other divers for today are newcomers to Antarctica, like myself. Both currently live in Hawaii and are artists. Michelle and Kirsten have become wonderful new friends and allowed me to assist them as their secondary dive tender. They actually had a bonafide dive tender, Jess, another Wisconsinite from Mequon! Jess serves on the janitorial staff here and turns out, she had Mr. Heibler as a science teacher who I know as a result of APES, crazy small world!

Close look at the holeA close look at the diving hole! Must be kept warm or it will freeze up overnight! Michelle in dive suitMichelle, a native Wisconsinite, getting ready for her dive. She is part of the artists and writers group visiting Antarctica. Kirsten in dive suitAnother new friend, Kirsten, is also suiting up for the dive. She is also an artist. 3rd diver readyThe last of the threesome, Brenda Konar is ready to go in. She is a master diver with over 30 years of experience and is there to assist Michelle and Kirsten.

The pics below will speak for themselves. I have a lot to show. It was so fun! The water was crystal clear and I got to see some sweet invertebrates. I am not a diver, in fact, I haven't even snorkeled, and after watching the ladies go through their routine just to get into the water, I am thinking it may never be in my wheelhouse! I envy their ability to see and get close to the undersea life, but I am pretty content to see it from the observation tube!

John HeineJohn Heine, another legend of diving with 45 years of diving experience, is serving as one of the dive tenders and turning on some O2. Kirsten is readyKirsten is almost ready to get in the -1.7˚ C water. Brrrrr. All three ready and waitingAll three women are suited up and ready to dive in! Kirsten going downIn goes Kirsten! Michelle going downThere goes Michelle! Michelle in the holeMichelle will soon be under the ice. LadderAfter the divers are safely in the water, a ladder is dropped in case someone needs to get out fast. Looking downWater is clear and beautiful. Looking through the dive holeLooking through the dive hole you can make out some sea animals. Sea anemonesSea anemones and coral-like critters as well as sponges are visible. Looking throughHow far down is it to the bottom? If memory serves correctly, I think I heard 40 ft or about 13 meters. Diver belowOne of the divers can be seen through the hole. In the ob tubeNo diving for me. I am in the observation tube and Kirsten is waving. The Ob tube will be another journal topic up and coming! Ob Tube KirstenAnother view of Kirsten from the ob tube! Side view in ob tubeA side view of Kirsten and her camera from the ob tube. After the diveRob Robbins, out of his wet suit, has come back to pick up equipment from the gals' dive. Brenda is already up and out! Dive Hut with vehicle out frontDive Hut and vehicle ready to take equipment back to the dive locker. Dive all doneDive is complete. The three ladies are out of the water and out on the ice. Get your penguin suits on, the ice is slippery! Dive hut 19 is in the background.

Flat Lorax would probably agree with me on this! Today's cards are from Gabby in first grade and Kailee, a former APES student!

Flat Lorax Post CardsFlat Lorax postcards for Gabby in 1st grade and Kailee a former APES student!

Comments

Terri Marks

I'm confused :) you are drilling ice cores but there is water open for diving. Can you explain how that works? I'm loving your journal entries! Thank you for "taking us along" on this marvelous journey.

Jennifer Bault

Hi,
Thanks for the question, it's a good one! We finished our field work
component, that is, we are no longer out in the middle of the sea ice
but are back in "town". On the coastline of McMurdo base they have a
dive hut and observation tube. I would estimate the distance to be
about a football field or 2 away from the shoreline depending on which
direction you are coming from. We are now working in the lab cutting
the ice cores into thin sections and am doing all of that work in the
cold room. You can only be in there for so long. So, in the time that
I am not cutting ice, I take small trips to see the other science going
on at McMurdo. Many scientists come to dive for the biology and
chemistry beneath the ice. It apparently is some of the best diving in
the world due to the clarity of the water I am told.

So, to get to your question, how is there open water and sea ice long
enough for 2.4 meters of ice? Well, the ice floats on top of the water
and freezes top down. Towards the bottom of the ice is a very mushy,
slushy layer of ice called platelet ice. Below that, is open water.
Close to the coastline the total depth is about 40 ft with about 6-8 ft
of that covered in ice. Out in the middle of the Ross Sea where we were
doing ice cores, the depth of the ice is about 2.2-2.4 meters (roughly
6-8ft) but underneath lies a much deeper body of water up to 900 meters
deep.

I hope this answers your question. Again, thanks for following. I
really appreciate it and love the questions. Please keep them coming!

Jennifer

On 11/9/17 5:58 PM, PolarTREC wrote:

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