Stump’s Tent Camp

For field work in the Transantarctic Mountains, whether you are placed there by helicopter from McMurdo Station, operate within the perimeter of a remote helicopter and Twin Otter supported field camp, or are placed in the deep field by fixed-wing aircraft, you will be living in some sort of camp. The design of a field camp varies with the size and requirements of the party and with the personal preferences of the occupants.

On their southery traverse in 1902-03, Scott, Wilson, and Shackleton shared the pyramidal tent that has come to bear Scott's name. (Photo from Scott's book, The Voyage of the Discovery, 1905.)

This is how I like to set up a camp. The centerpiece of the camp is a Scott tent, that stalwart of design that has been with us since Scott used in during the 1901-04 “Discovery” expedition. With their four-sided pyramidal shape, the Scott tents of today cover a footprint 9x9 feet square with a similar height. The poles are heavy-duty, single-pieced aluminum tubes, hinged together at the top. The tent is double-walled without a bottom, but with a flap that extends out as an apron onto the snow. You cover this with snow blocks (or in the worst case, rocks) to hold the tent down, which works splendidly in the hardest winds. The poles extend about a foot into the snow beneath the level of the flaps. The tunnel entrance to the tent is a circular hole encircled by a tube of fabric that can be cinched down once a person has gone through. To me, the ideal number for a deep-field party is four. Each party member has their own sleeping tent and a Scott tent serves as the communal cook tent. What I like to do is dig out the bottom and use rock boxes as seats. (Rock boxes are a USAP standard, 12x12x18-inch boxes made of 1/2 inch plywood, with rope handles at the end.) The party members face each other, two and two. Because the floor is sunken we do not have to lean in (as much) beneath the sides of the tent. An ensolite pad helps to soften the seat. At the end opposite the entrance is the kitchen, which amounts to a set of rock boxes used as shelves and support for a Coleman stove. At the top of the tent is a flue made of a three-inch plastic tube that lets out steam and heat produced on the stove.

Interior of cook tent. Paul, on the left, looks up from a little light readng. Mugs holds a spatula, about to take the pancake out of the skillet on the stove. (1987-88)

In the 1970’s and early 80’s the individual sleeping tents (Meade tents) had a low wall and were A-frames with four poles at the ends. By the late 1980’s the personal tents were domes made by Sierra Designs.

Camp in the Gothic Moutains, January, 1981, Meade tents, a Scott tent, Nansen sleds, and Alpine 660 Ski-doos.

During the 1987-88 season, Paul Fitzgerald and I had a project in the Scott Glacier area that required climbing and collecting peaks with the highest relief that we could find. (The science of it is a story for another time.) Paul was a New Zealander who had just finished a PhD at the University of Melbourne using a technique called fission-track dating to determine the uplift history of the Transantarctic Mountains in the McMurdo Sound area. Because of the amount of climbing that we planned to do, we had two mountaineers with the party instead of the usual one. One was my brother Mugs, the other Lyle Dean. After the Herc had left us we set up camp, all of the tents strung out in a line perpendicular to the direction of the prevailing wind, with the cook tent in the middle. After setting up the cooking area, I started to melt snow for a brew, Earl Grey if I recall. The others piled into the tent in turn. This was 1987, we each had a Sony Walkman, and even I had caught up with the times. But I hadn’t seen nothin yet. As they sat down, both Lyle and Mugs whipped out a pair of small speakers boosted by C batteries that played off the Walkman. We hung the speakers about 2/3 of the way up in the corners of the tent producing a stereo quadraphonic sound space. Picture it. There we were in the middle of Antarctica, 600 miles from McMurdo, listening to cassettes we'd brought from the outside world. One of the favorite albums that season was Graceland recently released by Paul Simon. A line from The Boy in the Bubble spoke aptly to our situation and has stayed with me ever since: "These are the days of miracle and wonder." In the lead-up to the 2000-01 field season, I was requesting gear for a camp to the south of Byrd Glacier. I had not been to the Ice in 10 years and the manager of the BFC (Berg Field Center, the field party staging area in McMurdo) suggested that I might want to substitute the new Endurance tent for the Scott. It was about the same weight (60-70 lbs) she said, but had a footprint that was about three times bigger. I said, Okay. However, when I arrived in McMurdo, we added four folding aluminum chairs and two folding tables, one for cooking, the other for eating and laying out maps. Then I was reminded that the floor of the tent might sag under the pressure of the tables and chairs, so we also had to take along several 4x8 sheets of 3/4 inch plywood for a floor. By the time everything was assembled, the tent set-up probably weighed three or four times more than a Scott tent. There had been a time when I’d had a reputation for travelling light.

Camp south of Byrd Glacier, December 2000. The large tent in the foreground is an Endurance. Food boxes ring the upwind side of the tent. My sleeping tent is in the background.

For sure having a table and chairs is more comfortable (and we all grow older and creakier), but the tent was a very large space to heat with a Coleman stove, especially if there was a wind blowing outside. On a typical day we would come in from fieldwork, and fire up the stove to make water. Steam would fill the tent and at the end opposite the stove it would condense and freeze on the ceiling. If we continued to heat the space the ice invariably would melt and drip down on dinner or our maps. Enough said. Give me a Scott tent any day.

Gallery – Rocks in Ice

When rocks find themselves on glacier ice or the ice of meltwater ponds, an interesting phenomenon occurs. Due both to pressure melting from the weight of the rock, and the absorption of heat from sunlight on the warmest days of the year, the rock will melt its way into the ice, tunneling so deep sometimes that you can see the rock a foot or more below the surface.

The Silence

The Antarctic silence is mentioned by many of those who have travelled to the deep field. For example, Edward Wilson, Scott’s trailmate on both the first and second expeditions penned a poem called The Barrier Silence, which was published in The South Polar Times, printed at the winter quarters at Cape Evans: The silence was deep with a breath like sleep As our sled runners slid on the snow, But the fate-full fall of our fur-clad feet Struck mute like a silent blow On a questioning ‘Hush?’ as the settling crust Shrank shivering over the floe. And a voice that was thick from a soul that seemed sick Came back from the Barrier –‘Go! For the secrets hidden are all forbidden Till God means man to know.’ And this was the thought that the silence wrought, As it scorched and froze us through, That we were the men God meant to know The heart of the Barrier snow, By the heat of the sun, and the glow And the glare from the glistening floe. As it scorched and froze us through and through With the bite of the drifting snow.

Sundogs (parhelia) frame the sun across McMurdo Sound. The atmospheric phemomenon is caused by defraction of light at 23 degrees from the sun through rod shaped ice crystals settling through the atmosphere.

My own take on the Antarctic silence comes from The Roof at the Bottom of the World. During my first Antarctic field season (1970–1971), I worked from a remote field camp on McGregor Glacier, a tributary to Shackleton Glacier midway along its east side. I arrived on a ski-fitted Hercules C-130 aircraft that set down on McGregor Glacier. When I got off the plane, I was ending a long series of flights that had begun three weeks earlier in Quonset Point, Rhode Island, on the other side of the world. Three navy helicopters arrived the next day. They would serve the camp, tasked with putting out field parties in the morning and then picking them up at the end of the day to bring us back to base camp, where we would sleep and eat. Two days after I arrived I was flying out to my first day in the field. My excitement was acute. I had picked a site about eight miles north of camp, a small island of rock on the eastern side of Shackleton Glacier named Taylor Nunatak. The helicopter dropped Phil Colbert and me, along with our survival gear, and flew away. Its rotor faded and then was no more. For the first time in weeks, I was without the audible vibe of engines, whether screaming from aircraft or just humming to themselves somewhere in the background, quietly unnoticed. It wasn’t apparent at first, for as Phil and I scurried over to the margin of the glacier, we generated sounds of our own—footsteps, the click of our ice axes, the swish of our clothes. We stopped on a terrace of rock and looked out at Shackleton Glacier across a spectacular ice fall that gave the appearance of rapids in a wild river, except that it was motionless. Standing there, I suddenly became aware of the silence. It was behind me just at my shoulder. It went beyond the icefall as far as I could see. It was out there everywhere. The stillness was profound. The soft rustling of my parka seemed amplified. I held stone still. The sound of breath issuing through my nostrils filled my ears. I held my breath. The silence pressed in on all sides. It was palpable In my state of auditory suspension the icefall before me was all the more dramatic. It occurred at a point where a small ridge of rock projected from Taylor Nunatak into Shackleton Glacier. The glacier margin first reared up over this obstacle, broke into a jumble of blue seracs (ice blocks), then plunged chaotically down a steep, two hundred–foot scoop at the margin of the glacier, before molding smoothly back into the flow. In human time the icefall was a static sculpture of Nature’s grand design, in glacier time (moving about five feet per day) it was a rapids in a smoothly flowing river. As Phil and I stood there savoring our solitude, a sudden thwack broke the silence, like the shot of a .22-caliber rifle. We jumped and looked around, but there was no apparent source of the sound. A couple of minutes later another shot rang out. This time we were sure that it had come from the direction of the ice fall. Then it happened again. The ice was popping, strained to its limit and fracturing, incrementally working its way down the gradient at less than a millimeter per pop. The ice fall defied the silence. The dead air sucked up its sound. At last I was really out there, out there in a state of extreme isolation, even grace, with raw Nature everywhere on display. It was time to see what secrets the rocks would tell, and we went clomping up the outcrop, challenging the silence at every step.

Silence pervades pressure ridges in ice at the margin of Ross Island. Mount Discovery stands mute across McMurdo Sound.

Gallery – Sastrugi

Sastrigi is the name given to wind-blown patterns in snow, formed by the continuing processes of deposition and erosion of snow. The phenomenon is pervasive, producing a limitless variety of windswept patterns, begging to be framed.

Sastrugi in the Duncan Mountains

McMurdo Station

Landsat image of the McMurdo Sound area. (adapted from The Roof at the Bottom of the World)

As the ship Discovery sailed back from a voyage along the Great Barrier (Ross Ice Shelf), the commander of the expedition, Robert Falcon Scott, was eager to find a suitable cove to moor the ship for the winter. On February 8, 1903, skirting along the west side of Mt. Erebus (the active shield volcano on Ross Island,) Discovery rounded the tip of the long peninsula and found a small, protected bay backed by fast ice and shoreline. After weighing the pros and cons, Scott recorded in his journal, “On the whole to-night I feel like staying where we are.” In a saddle just inland of the point, the party constructed a large, square hut for storage, and two smaller ones for geomagnetic observations. From its mooring at Hut Point, Discovery commanded a view of Winter Quarters Bay encircled as it was by volcanic landforms, the most prominent being Observation Hill.

This image looks across Winter Quarters Bay from Hut Point, with Discovery moored at the point and the three huts constructed by the expedition in the foreground. Observation Hill is immediately out of the photo on the right. (Photo from Scott's book, The Voyage of the Discovery, 1905.)

What Scott did not know at the time was that the breakout of ice during the 1902-03 austral summer was particularly deep into McMurdo Sound. After being fast for two winters and nearly so for a third, he came to realize. Subsequently, Shackleton was stopped by fast ice in 1908 at Cape Royds, 20 miles north of Winter Quarters Bay, and Scott in 1911 at Cape Evans about eight miles south of Cape Royds. At the start of the International Geophysical Year (IGY, 1957-58,) the US chose Winter Quarters Bay as the location of its main center of operations, naming it McMurdo Station. The station is situated at a unique and strategic site. The slip behind Hut Point has water deep enough to accommodate large supply ships and tankers. In the early summer the ice out from the station is hard and smooth from the previous winter’s freeze and allows the landing of wheeled aircraft. Whereas about five miles to the south and up a gentle rise one comes to the Ross Ice Shelf, where a prepared runway allows aircraft landings all season. The construction of McMurdo Station was the responsibility of the Navy’s newly established Task Force 43 (nicknamed Operation Deep Freeze), under the command of Adm. George Dufek. Because the hillsides around Winter Quarters Bay are fairly steeply inclined, the first task of the Seabees was to bulldoze down from the hillsides any loose volcanic gravel they could find and with it built terraces where buildings could be constructed. The station evolved quickly. By 1970 when I first saw McMurdo, all of the principal buildings were in place, and most of these have not changed their footprint since then. All of the pipes for water and sewer are above ground and must be insulated and wrapped in heat tape. The hospital, the garages, the firehouse, the helicopter hangar, the command center, the field staging buildings, the NSF chalet, all of these have been there from early years. The dining area was redesigned in the 1990’s, and the outside of the building was painted blue over the old tan, but the store and rec rooms remained pretty much the same.

Sketch of changes to the terrain around Winter Quarters Bay between 1956 and 1993. The high landform at the right edge of the image is Observation Hill. Hut Point is in the left foreground. (Source: Antarctic Journal of the U.S., v. 28, no. 2, 1993.)

What has changed is the sleeping quarters. In 1970 most everyone slept in group quarters with toilets and showers down the hall. By the 1980’s a series of buildings were constructed to house the growing population of McMurdo. Since then the standard is a pair of shared bedrooms sharing a common sink, shower, and toilet. A new science building was opened in November 1991, providing much needed space for science projects at the base. The cargo yards and the yard for recycling seem only to get bigger every year. The two views of McMurdo Station that follow were shot in January 1983 and January 2011. One notable difference is the buildings that housed the nuclear power plant half way up on the side of Observation Hill in the lower left of the 1983 photo are gone in the 2011 photo. When it was shut down in October 1972, the plant had a record of more than a decade of continuous service. Since then, McMurdo has been powered by petroleum, and of late by supplementary wind power. Note the presence of fuel tanks up the hill on the far side of McMurdo in the 1983 photo, and their removal by 2011, along with the addition of several new tanks in the foreground of the photo.

McMurdo Station from Observation Hill, January, 1983

McMurdo Station from Observation Hill, January, 2011.

Gallery: Crevasses

Crevasses are fractures that open in moving glacier ice. At slow rates of movement glaciers flow as ductile (or plastic) solids, moving smoothly down their gradient; however, if the rate of movement is too fast, the ice will behave as a brittle solid and crack. Each time the ice cracks, the amount of actual displacement is a millimeter or so, but compound these fractures over time and very wide openings may result. Typically, as a crevasse opens windblown snow sifts into the opening crack and lodges there. As the crevasse widens, the continuous addition of snow creates a bridge across a crevasse. A great variety of crevasse patterns are possible depending on local conditions, as demonstrated in this week’s gallery. All of these images are taken in the vicinity of Byrd Glacier.

Finding Cairns

Anyone who travels to the deep field in Antarctica experiences setting foot in places where no human previously has traveled. Even if several field parties have worked in an area, there are still many ridgelines, moraines, tributary glaciers, and drifts that are virgin surfaces with no footprints. I have always felt a certain thrill, along with privilege, good fortune, and satisfaction, when I see a new perspective and frame a camera shot of a new location. I have climbed many mountains in places other than Antarctica and have often wondered if I was the first to reach some lonely spot. But I could never be confident that some old prospector searching for gold or a herder chasing goats into high country had not previously climbed a ridge on which I was standing. In most of the Transantarctic Mountains, however, the travelers have been precious few, and those who have gone before have typically left maps and scientific reports of exactly where they went. Nevertheless, I must admit that after thirteen expeditions to Antarctica, the excitement has faded somewhat. Now, what gives me an even greater thrill is the knowledge that I am standing exactly where members of a previous field party have been and I am gazing over the same vista. I imagine their approach and wonder how it felt to them to be the first. I feel a connection, especially when I discover a cairn left by a field party as a marker of its achievement, and sometimes even a written record of who the men were and what they did. For instance, in the early seasons after the International Geophysical Year in the late 1950s and early 1960s, when topographers were scouring the Transantarctic Mountains to prepare their maps, they built cairns at many of their survey stations. Perhaps a half-dozen times over the years, I have come upon these robust, chest-high constructions built from whatever stone the bedrock offered. Invariably they are placed at some high point overlooking a spacious panorama. Some might say that they are blemishes on pristine wilderness, but to me any cairn is an apt monument to the human history of this frozen land. The most memorable cairn I’ve found was left by Laurence Gould’s party on Supporting Party Mountain in 1929. This was the end point of a 600-mile traverse begun at Little America with pause at the mountain front when Byrd flew by on his historic flight to the South Pole, and thence eastward discovering new mountains as the party progressed. During the 1977–1978 field season, my party was working in the area to the north of Leverett Glacier. From Gould’s writings, we knew that his party had built a cairn at the summit of the mountain there at the easternmost reach of the exploration. In it Gould had left a note claiming the territory to the east of longitude 150 in the name of the United State of America. Five years later, a field party associated with the second Byrd Antarctic expedition, revisited the cairn at the beginning of a traverse up Scott Glaceer. We knew the leader, Quin Blackburn, had left a note of his own, copied Gould’s note, and carried the original back to him. I was determined not to miss this remnant of the heroic era, and planned a day of mapping that would include a climb to the summit of Supporting Party Mountain and to its cairn. We approached up the gentle north ridge, whereas Gould’s and Blackburn’s parties had climbed up the steep western spur. Because of the convexity of the ridgeline we did not see the cairn until we were almost on it. Then there it was—an alien sign of humanity in a lifeless landscape! We peered into the chinks between the rocks and spotted the treasure deep within.
Cairn Supporting Party Mountain Antarctica

Gould's cairn on Supporting Party Mountain

The proper construction of a cairn in which a record is left includes a stone that can be withdrawn so that the contents can be easily accessed, and indeed that was how this cairn was made. I carefully removed the doorway stone, reached in, and took out a colorful tin can that had once held dried oats for Gould’s party. Inside the tin were the penciled notes, written with precision and flare in a surprisingly steady hand, given that Blackburn must have written them either with a gloved hand or a bare hand stiffened by the cold. In addition, there were a bamboo splint and a broken thermometer, left as relics of their heroic traverse. My group lingered by the cairn, looked out at the scene that Gould and Blackburn had beheld, discussed the route that they had taken to this spot, took photos as souvenirs, then replaced the notes, added our own, and descended the mountain. (Excerpt from The Roof at the Bottom of the World.)

Gallery: Vanda Ice Cracks

Lake Vanda sits in the middle of Wright Valley, one of the ice-free valleys to the west of McMurdo Sound. The center of the lake is a permanently frozen plug of white ice. During the summer months, meltwater from glaciers at either end of Wright Valley pours into the lake, producing a broad moat of open water. During the winter this moat freezes with a clarity that allows one to peer many feet down into the azure blue of the ice. As temperatures deepen and the ice contracts, lacy fractures propagate through the upper reaches of the ice, begging to be framed and shot. Each of these images is approximately one foot across.

Lake Vanda, early November, 1975, is frozen tight, awaiting the deluge of the summer thaw. The blue ice margin is home to the ice cracks in the gallery.

Hygene in the Field

In the field when it comes to the kitchen, Stump’s first rule is, “No Soap!” Remember that every ounce of water has to be made by melting snow on the Coleman stove. By the time that a party settles into a field camp, we already pretty much share our germ pool, and remain healthy in isolation. Soapy water requires rinsing. If you do not rinse completely, soap on the dishes of the next meal can cause gastric distress. The extremely dry air of Antarctica is hard enough on all but the oiliest of skin, but repeatedly putting hands in soapy water is a guarantee of dry, cracked knuckles and cuticles. So the routine after a meal is that we wipe our plates with a paper towel, and then put a few tablespoons of boiling water on the plate. Swish it around with a finger to melt any grease and dissolve the remaining food, pour the bit down the sump hole, and dry with a clean paper towel. Voila! The dishes are ready for the next meal. Cook pots require a little more water generally, but the drill is the same. I tend not to cook much heavily fried food in the field, mainly due to the trouble of cleaning up. Then there is the question of personal hygiene, of washing. Antarctica is a remarkably clean place. To be sure there is dirt down in the rocks on a moraine, and the Dry Valleys across from McMurdo Station are blanketed in soil and dirty glacial drift. But generally one encounters only ice, snow, and rock in the field. One doesn’t get dirty from without. Exceptions might be greasy hands from working on a snowmobile, or blackening of the face over time due to soot from poorly burning white gas. For these, a little soap might be appropriate, followed by a liberal coating of Corn Huskers Lotion or Bag Balm. I find it desirable to go into the field with enough tee-shirts and tightie-whities to change about once a week, and enough socks to change somewhat more frequently than that. For the rest of it, I adopt a laissez-faire attitude, letting Nature take its course. In my experience, you itch for about a week, mainly on the head and back. Depending on how much you have been sweating while out on the slopes, you acquire the acrid odor of a locker room. But pungent sweat along with the itch passes after a week or so, and the body moves to the phase of funk. In the cook tent body odor is shared like the germ pool, unconsciously as the individuals ripen in the communal pew. A dose of athlete’s foot, however, can threaten the balance, especially if the victim is drying his/her socks in the shared space. As weeks go by the scent attains a rich fullness, but is barely noticed somewhere there in the background. The aura of the cook tent gives notice to the odorless interior of Antarctica, emphatically, that humans are there. At the time of pick up our olfactory impact on the Herc crews was visible. We always made our first stop in McMurdo the mess hall, where we would chow down on freshies and someone else’s cooking, and let the rest of the room whiff the aura of the deep field from whence we had come. Finally, we would make it to our long awaited showers, alone and naked, hot and steamy, the pleasure of lathering all the crevices, washing away the grime, becoming odorless. It is hardly a reason not to shower for so long, but after that first shampoo one’s hair has the silkiest, smoothest body, conditioned au naturel in pure funk. My parting shot is this. One slow news day in the late 1970’s I was enjoying a phone interview with a sweet, young reporter from the Mesa Tribune who was asking about my Antarctic research. At some point toward the end I allowed that after nine weeks without a bath one gets pretty. The next morning on the front page of the Tribune was the banner, “ASU PROFESSOR “GETS FUNKY” ON THE ANTARCTIC TUNDRA.” It gave me pause. Although she did get the first part right, I am still looking for tundra in the Transantarctic Mountains.

Gallery: Drifts

One of the most enduring features of the landscape of the Transantarctic Mountains is the drift. Because prevailing winds are so consistent, long, graceful drifts accumulate at many places in the lee of ridges and summits. These features are so persistent in the perpetually frozen climate of Antarctica, that the white snow of the crest of a drift typically gives way to solid, blue ice in its lower portion.

And So It Begins…

Perhaps the best way to begin this blog is to tell how I came to do research in the Transantarctic Mountains. I was leaving grad school at Yale in the spring of 1970, under a cloud, when I said to my mentor, Dick Armstrong, that I was fed up with academia and wanted “to get as far away as possible.” Dick’s response was, “Why don’t you try Antarctica?” and he gave me a list of names at universities that had recently been funded for geological research in the Transantarctic Mountains. Several responses pointed me toward Ohio State, which had just landed a large grant from the National Science Foundation (NSF). The centerpiece of the proposal had been to search for new localities of vertebrate fossils, like the ones found the season before at a place called Coalsack Bluff. But the proposal also included grad students to study each of the major rock groups in the area, and I was chosen to cover the suite of metamorphic rocks. We were situated at a remote camp in the Transantarctic Mountains, around 600 miles south of McMurdo Station (the main US base on the continent) served by three Huey helicopters, flown and maintained by Navy personnel of VXE-6. The helos had a range of 100 miles, and we occupied two camps, so our coverage was 300 miles of the Transantarctic Mountains. To me, the situation was astounding. A typical work day would be fly out to some remote spot, be left with survival gear, hike and climb around in the mountains all day recording geology and collecting rocks, and then be picked up and flown back to the camp for dinner. I had grown up in rural, central Pennsylvania steeped in the Appalachians, a lover of mountains, their wildness, their hidden recesses, their vistas, their strenuous demands. It was one of the main reasons that I had chosen to go into geology. By 1970, I had been west several times, had done Geology Field Camp in the Tobacco Root Mountains of western Montana, but beyond that, mountain belts like the Alps, the Himalayas, and the Andes, were all dreams. From regional geology classes and poring over globes, I knew of the Transantarctic Mountains, but they were so obscure that they had never remotely figured in any of my dreams. The reality of working in the Transantarctic Mountains was profound. I had never experienced such pristine wilderness. I remember thinking how clean the place was. The landscape was stark and lifeless (an Ahem! here from the microbial biologists), an alien world of ice and rock and wind, fundamental Nature arrayed in the most beautiful shapes and patterns. The research opportunity, too, was amazing, with geological field mapping as the primary activity for data collection, and a virgin region where every day I reached places that no one had set foot before. By the time I returned from Antarctica (from “the Ice” as Antarcticans like to say), I was obsessed with going back. Suffice it to say that I did make it back, and have continued to do so intermittently over the past 40 years. The patron of my research for all these years has been the National Science Foundation (NSF), specifically the Office of Polar Programs (OPP), which administers the U. S. Antarctic Program (USAP). I have only good things to say about NSF, but should make the disclaimer up front that the opinions expressed in this blog are mine, and do not necessarily reflect those of the National Science Foundation. Research in Antarctica is focused in a variety of fields besides geology, including astrophysics, glaciology, biology, and ocean and atmospheric sciences, with many projects these days having an emphasis in climate studies. The logistics that run the program are an integral part of everyone’s research, and a fascinating subject on their own. As I move forward with this blog my intention is to recount what it has been like to do fieldwork in the Transantarctic Mountains, the camp life, the logistics of being there, climbing mountains, crossing paths of early explorers, the geology, Nature writ large. Each posting will also include a gallery of several images related by a theme.

Gallery: Ice Puddles

This week’s gallery contains images of what I call “ice puddles.” The ones pictured here formed on the side of a stream at the foot of the Duncan Mountains that was active around the solstice. When midday sunshine warmed rocks of an ice-cored moraine enough to cause melting, the stream babbled by our base camp. The puddles at the side of the stream filled and began to freeze, capturing bubbles beneath the ice. At night when the sun was low, the melting stopped and the stream dried up. The puddles drained, and the expanding airspace beneath the ice traced a series of momentary stands of the air/water/ice interface. The thickness of ice in these images is about 1/4 inch. The polygonal pattern on the final image outlines individual ice crystals, etched by the ablation (evaporation) of H2O molecules at the crystal boundaries.