Our camp consists of nothing more than three Scott Tents, one Endurance Tent, scientific equipment, and the bare minimum of supplies to comfortably survive… or at least survive mildly comfortably. To minimize our camp footprint and lessen the use of helicopter dependency we decided on a greywater-free camp. Greywater is any sort of wastewater resulting from cleaning, cooking, or bathing. A few weeks in the field can lead to well over 100 gallons (or >1000 lbs) of wastewater which must then be helicoptered back to McMurdo and treated. My opinion is that it is much more environmental friendly (and saves us valuable helo hours) to not create greywater to begin with.

For the duration of the 5-6 week field season we do not have running water, shower, or wash with a nice warm wash cloth. If we feel dirty under our multiple layers of clothes we will simply wash ourselves with wet-wipes. Washing our hands is accomplished through instant hand sanitizer (i.e. Purell).

Mealtime can be a challenge in itself. Since wastewater cannot be produced we do not allow for excess water after cooking our pasta meals. (Thankfully we bring out dehydrated green peppers and onions just in case we added too much water to the pot). Cleaning pans, utensils, plates, and mugs consists of a quick wipe down with a dry paper towel. I like to think that the cold conditions that we live in keeps the dishes somewhat sanitary.

Tanner “Dishwashing” in Beacon Valley.

Urine is not considered greywater and is disposed of in 55 gallon drums (or “U-barrels”) at field camps. We are given 1-liter “pee bottles” to use during the day when we are away from camp. We carry these in our backpacks until we return to camp and deposit the urine into the U-barrel. Every year, someone will inevitably let their bottle freeze.

Two liters of urine brought back to camp to be poured into the 55 gallon urine barrels.

The Antarctic field experience would not be complete without the use of our camp toilet which is nothing more than a box with a trash bag lined 5 gallon bucket beneath it. As the bucket fills (weekly basis) the bag is tied, the bucket is sealed, and it returns to McMurdo on the next helicopter flight. For obvious reasons we search long and hard during camp put-in for a windless, private place for the box; but usually the view from the box is spectacular!

A typical field camp restroom in the Dry Valleys protected nicely from wind behind a huge rock.

The gorgeous view from our bathroom looking north towards the Taylor Glacier.

A small storm came in during the late afternoon and left a minor dusting of snow further down valley. Visibility quickly diminishes with the storm. Typically bad visibility in Antarctica is due to ground snow being blown around by the wind which can cause for a complete “white-out”. However this seems less common in the Dry Valleys where we work on a terrestrial landscape opposed to working on exposed ice which is often covered by a thin layer of snow. Finally, the camp experienced a beautiful late evening; one of many thus far in Beacon Valley this year!

We began drilling the glacier ice and despite the weather conditions the day started well as we were recovering beautiful, clean, bubbly glacier ice. But soon the borehole reached a small sandy-pebbly layer within the ice and the pace of drilling came to a crawl. Drilling sediment rich ice releases enough heat to melt the ice between the sand grains. When the drill slows down the ice quickly refreezes and makes a sand ice slurry (yes, I referred to it as “crap” in the video) which adheres to the auger like cement making cleaning an arduous process.

The round depression on the top of the recovered slurry core was caused by the down-hole vacuum which assists in removing broken up rock and ice cemented debris created during drilling. Material not removed by the vacuum is hopefully recovered via use of the core barrel as shown in this video. After a few more cleaning runs with the vacuum and core barrel, we were back into clean ice once again!

The edge of the sea ice viewed north from the helicopter just 30 minutes outside of McMurdo.

View from the helicopter during our trip up the Ferrar Valley.

The 90 minute helicopter flight to Beacon Valley allowed me to reflect on the conveniences one takes for granted such as running water, warm showers, and simple means of communicating back to one’s family and friends. I will miss that. I won’t have such niceties until I return to McMurdo but at the same time the thought of my science objectives and potential for discovery that will occur between now and the next time I set foot in McMurdo has me excited to begin the field season!

Helicopter “zero-eight-hotel” leaving our Beacon Valley camp after dropping us off at the start of the field season.

We arrived into Beacon Valley to one of the most eerie / thrilling experiences of the entire Antarctic adventure. After the helicopter drops you and your camp gear off and fades away in the distance you are left in a totally foreign and cold environment.

Total silence.

You realize you are very much isolated from what we call the “real world”.

Lead driller Tanner (blue jacket) and others looking for clean glacier ice for our initial drill site.

Initial drill site. Excavation down 20-30cm to the buried glacier ice. Note the unweathered rocks “coming out” of the ice surface. As the ice sublimates (evaporates) the material in the ice moves towards the surface.

The following day the field team excavated glacial sediment to expose buried iced in search for good drilling locations (i.e. regions of clean ice). Today the helicopter transported the drilling equipment to the site, we set up the drill, and we took our first core of beautiful glacial ice this afternoon. The drill is working perfectly and we are all in good spirits.

Drilling operations.

Field freezer. Our temporary repository for ice cores before being shipped back to McMurdo.

Standing in a polygon trough on a snowy day in Beacon Valley.

Helicopter day trip away from our main camp in Beacon Valley.

Coring of the underlying glacial ice, Beacon Valley.

Beacon Valley: home for the next 7 weeks.

Taking orientation of sand veins within the buried ice.

A collapse of the Antarctic ice sheets would raise global sea levels approximately 180 feet (60 m) with devastating consequences for near-shore and low-elevation communities. To better understand the response of the Antarctic ice sheets to future changes in climate, quantitative geomophologist Doug Kowalewski and colleagues from Boston University are working to understand the ancient climate of Antarctica and the corresponding stability of the glaciers and ice sheets. Buried alpine glacier ice was discovered two decades ago in the McMurdo Dry Valleys, a predominantly ice-free region roughly the size of Rhode Island. The buried glacier is allegedly the oldest on earth with an age of more than 8 million years; that would be almost ten times older than ice currently being cored from the Antarctic ice sheets.

If the ice is indeed that old, gases trapped within the buried glacier ice represent a potential archive of climate data stretching back to the time of the earliest hominids. Doug Kowalewski (UMass, Amherst) along with colleagues from Boston University, Brown University and Colgate spent October to December camped in Beacon Valley (77.859 S, 160.574 E) coring the alpine glacier ice. The ice cores were shipped to Boston and Princeton universities where analysis of the trapped gases will provide a more robust chronology for the glacier and provide insight about past atmospheric temperatures and precipitation.

To establish further evidence that buried glaciers can persist for over 8 million years in the dry, albeit cold environment of Antarctica, Doug conducted in-situ experiments and modeling studies to calculate the existing rate of glacier ice sublimation (the change of state from solid directly to gas, a process that slowly reduces the size of glacier and over time may eliminate the glacier completely). Doug also ran regional climate model simulations at the UMass Amherst Climate System Research Center to resolve whether sustained cold climate conditions necessary for long-term ice preservation occurred during the lifetime of the glacier specifically during warmer times in Earth’s history (episodes of higher atmospheric CO2 and increased solar radiation due to Earth’s orbital changes). For model input, Doug and his colleagues monitored atmospheric temperatures, wind speed, amount of solar radiation received, and relative humidity. Glacier ice temperatures and overlying rock and soil temperatures were monitored in Beacon Valley. These modeling efforts provide increased evidence that buried ice and a super-arid, cold-polar climate have sustained in parts of Antarctica for millions of years.

Doug Kowalewski’s field site, Beacon Valley (yellow square), sits at 1500 m in elevation and is in close proximity to the East Antarctic Ice Sheet (left of image).