Kirsten up close
    My friend, Kirsten and I underwater. Am I diving? Find out below!

    Smile
    Smile! 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 Squid
    Giant 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 Equip
    Dive equipment being tested… rebreathers, not designed for the cold conditions in Antarctica but in tests, these seemed to work okay.

    Head gear
    Head 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 Robson
    One 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 hole
    A close look at the diving hole! Must be kept warm or it will freeze up overnight!

    Michelle in dive suit
    Michelle, a native Wisconsinite, getting ready for her dive. She is part of the artists and writers group visiting Antarctica.

    Kirsten in dive suit
    Another new friend, Kirsten, is also suiting up for the dive. She is also an artist.
    3rd diver ready
    The 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 Heine
    John 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 ready
    Kirsten is almost ready to get in the -1.7˚ C water. Brrrrr.

    All three ready and waiting
    All three women are suited up and ready to dive in!

    Kirsten going down
    In goes Kirsten!

    Michelle going down
    There goes Michelle!

    Michelle in the hole
    Michelle will soon be under the ice.

    Ladder
    After the divers are safely in the water, a ladder is dropped in case someone needs to get out fast.

    Looking down
    Water is clear and beautiful.

    Looking through the dive hole
    Looking through the dive hole you can make out some sea animals.

    Sea anemones
    Sea anemones and coral-like critters as well as sponges are visible.

    Looking through
    How far down is it to the bottom? If memory serves correctly, I think I heard 40 ft or about 13 meters.

    Diver below
    One of the divers can be seen through the hole.

    In the ob tube
    No 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 Kirsten
    Another view of Kirsten from the ob tube!

    Side view in ob tube
    A side view of Kirsten and her camera from the ob tube.

    After the dive
    Rob 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 front
    Dive Hut and vehicle ready to take equipment back to the dive locker.

    Dive all done
    Dive 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 Cards
    Flat Lorax postcards for Gabby in 1st grade and Kailee a former APES student!

    Date
    Location
    McMurdo Station Dive Hut, Antarctica
    Weather Summary
    Mild, Sunny and Clear
    Temperature
    5˚ F
    Wind Speed
    14mph
    Wind Chill
    -12˚ F

    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: