Monday 21 August 2017

Persistent Organic Pollutants Air Sampling

A short while ago I wrote about going air sampling with Clint and Watto. http://winterat66south.blogspot.com.au/2017/06/air-sampling-with-clint-and-watto.html
Well I thought I'd actually fill in the gaps around the science on this project, after all the purpose for us being down here is to support science. There are no science personnel on station over winter, and any projects with a year round data collection requirement are reliant on training up Station personnel to support their project.
This project is called "Antarctica as a sentinel for Southern Hemisphere Persistent Organic Pollutant Usage; Facilitation of the Global Monitoring Plan".... or as we know it "Bengston-Nash". Supervising Communications Technical Officer Clint Chilcott was selected to monitor the project over winter, clearly impressing the project proponents with his reliable technical demeanor ( having said that this is the same guy that built the igloo that still stands on the heli pad!).

The project is led by Susan Bengston Nash from Griffith University.

Polar regions are environmental 'sinks' for man-made, Persistent Organic Pollutants (POPs). These chemicals are toxic, bioaccumulative and considered a substantial threat. The Stockholm Convention on POPs aims to reduce and ultimately eliminate these chemicals from the environment. Australia has ratified the Convention and holds a legal obligation to conduct continuous, comparable, and high
quality monitoring of POPs within their states and territories. Chemical levels and profiles at the Poles of the earth reflect hemispheric usage and as such are of particular importance and special interest under the Global Monitoring Plan (GMP). The Department of Environment are the lead
agency responsible for fulfilling Australia’s responsibilities under the GMP. This project seeks to provide and safeguard ongoing, streamlined Antarctic access for the purpose of longitudinal monitoring of POP input, distribution, fate in the Antarctic region to serve federal obligations under the GMP.

Whilst this sounds  awesomely scientific, our role here at station is just to maintain the passive air samplers out near the old Wilkes station. It  pretty much involves swapping out foam filter media which is left in place for 6 week at a time to capture air particles.

The first time I went out sampling  with Clint it was a lovely sunny day and not nearly as cold as the second trip. On this occasion it was Clint, Steve "Muscles" Middleton, and I that formed the crack science support team. Muscles and I generally tried to stay out of the way, and opened and closed boxes and jars as directed by our trusty leader!

Clint still has all of his fingers, and we achieved another win supporting science in the Antarctic!

Clint supervised by the shadowy assistants. Photo: Jacque Comery

Chnaging the battery of the anemometer. Photo: Jacque Comery

The anemometer. Photo: Jacque Comery

Air sampler. Photo: Jacque Comery

Sample media jars ready to deploy. Photo: Jacque Comery

Inside the air sampler. Photo: Jacque Comery

Clint changing sample media over. Photo: Jacque Comery

Jacque getting jars ready for Clint. Photo: Steve Middleton

Muscles assisting Clint. Photo: Jacque Comery

Clint and Muscles. Job done. Photo: Jacque Comery

Clint and Jac all packed up. Photo: Steve Middleton

View of Newcomb Bay on the way home. Photo: Jacque Comery

Enjoying one of Muscles's yarns on the drive home. Photo: Jacque Comery


Wednesday 5 July 2017

Snow bubbles in the ice

Snow bubbles in the fresh water ice pools amoungst the rocks on the Clark Peninsula.

They look like pom-poms surronded by diamonds!

Snow bubbles frozen in the ice. Photo: Jacque Comery

Freshwater rock pool. Photo: Jacque Comery


Bubbles. Photo: Jacque Comery



Frozen pom-poms. Photo: Jacque Comery

Frozen pool, the ice surface rippled and dimpled. Photo: Jacque Comery



Saturday 24 June 2017

Skiway to Casey Sunday Stroll

Around 10 km up the hill from Casey we have a skiway which operates in the summer for Basler and Twin Otter aircraft that are used in the program. The A-319 and C17 use the Wilkins ice runway a further 60 km away.  Aside from a regular visit by the aviation team to make sure that the buildings on sleds haven't blown away, the skiway is left winterised once the flying season is over. The skiway is linked to Station by a well formed road, or as we know it, the A-line.  Travel off station is restricted to these defined routes, in order that we don't wander off into areas with unseen crevasses.

A couple of months ago now (in late April) a few of us caught a ride in a Hagg up to the skiway, to enjoy a nice stroll back down the hill to Station  to enjoy the lovely afternoon light.  It was a relatively mild afternoon , maybe minus 10C, and no wind.

Looking back over these photos as I write in the late morning darkness here in my room, reminds me of how beautiful and bright it can actually be out there.  These days I almost find it impossible to take photos as my hands don't cope with holding a cold camera body for more than about 5 minutes.

We set out hauling our packs on sleds. The setting sun sinking and reappearing behind the clouds and playing on the forming sea ice was changing by the minute. I quickly fell way behind the group busily taking photos to try and capture the constantly changing light.
I made it back to station just in time to see the sun sink behind Reeves Hill producing the most specaticual sun pillar that I've seen down here so far.

I have posted these photos in order so that you can follow the journey through the changing light with me.

Enjoy

Selfie on the A-line. Photo: Jacque Comery
Getting ready to go. (L-R) Misty, Sealy, Watto, Stu, Mark. Photo: Jacque Comery

Leaving the skiway bound for Casey. Photo: Jacque Comery

Jac at the Jacks sign. Photo: Mark Grainger

Afternoon sun. Photo: Jacque Comery

Survival pack on  tthe sled. Photo: Jacque Comery

Way point marker on the A-line. Photo: Jacque Comery

Casey Station. Photo: Jacque Comery

Golden afternnon light. Photo: Jacque Comery

Shadows. Photo: Jacque Comery

Caneline marker glowing in the setting sun. Photo: Jacque Comery

Jac. Photo: Jacque Comery

Cane. Photo: Jacque Comery

Sunset behind station. Photo: Jacque Comery

Station buildings basking in the sunset. Photo: Jacque Comery


Sun pillar as the sun suns behind Reeves Hill. Photo: Jacque Comery



The story behind Jack's Hut.

One Friday afternoon, a few weeks ago, a crew of us headed out to Jack's Hut - Clint, Adam, Muscles (Steve), and I. We set off at around 3 pm into a beatiful sunset and our  progress to the hut was hampered by endless calls to stop the Hagg to take photos. Adam was at the wheel, with Clint as co-pilot, and Muscles and I piled in the back .
We arrived at the hut and after Muscles got the heater going and we dropped our box of food and drinks, and backpacks inside and we went exploring. There is an old crane cab on the site off to the side of the hut which is now know as the toilet with the best view in Antarctica... well it does fill up with snow, but it has a great view out to sea. After digging out the toilet (i.e. the crane cab) we headed inside for a night of delicous food, drinks and many laughs. We had to get back to Station for 10 am for Adam to do his Slushy shift, and so the stay itself was short-lived.
A week or so later, I was digging through the filing cabinet in my Station Leader office, and came across some interesting correspondence addressed to Alison Deans the SL in 2014.
It was from a man by the name of Jack Field.  This was Jack!  of Jack's Donga fame!
  Below is an extract from Jack in his letter to Ali, about how the hut was set up.  What is now the toilet, was originally the entire hut.
These days we have a 4 bunk hut off to cook and sleep in and only use the original Jack's Donga for well, the bathroom!

" I am the "Jack" after whom Jack's donga is named.
We have noticed quite a few variations in the story of how the donga came to be, so you may all be interested to hear it from the horse's mouth.
I was the cook at Wilkes in 1962, and while that was a nice warm situation, I also enjoyed getting out and about as much as possible. Two of us used to hike along the sea-ice and up to the ridge where the donga is located for a day's outing. We occasionally took a dogsled and stayed overnight on the ridge in a two man tent, including one memorable time when we had trouble sleeping because of the groaning noises all around us. Early next morning, I pulled one of the tent pegs out and discovered it left a hole that went all the way down to nowhere!
Eventually it occurred to me to ask our dieso Gringo (Nev Collins) if we could use the abandoned D4 cabin as a hut. After some minor mishaps (pictures attached) it was duly transported and installed by him.
Our only mod cons in those days were two single bunks, one above the other, with the lower one being used as a seat when the upper one was folded up.
It's great to see how the site has continued to give pleasure to so many over the years, especially with the new and improved accommodation. However, it's also great to see the original cab still giving splendid service as the world's best "loo with a view"."
Jac checking out Jack's Donga. Photo: Adam Roberts
The Jack's trip Crew. (L-R) Adam, Jac, Muscles and Clint. Photo: Ducky
The Hagg crew. Photo: Jacque Comery

Another sunset photo stop. Photo: Jacque Comery
Sunset through the icy Hagg window. Photo: Steve Middleton
Jacks Donga. Photo: Jacque Comery


Jack Field , 1962 ANARE Chef, after who the donga is named.  Photo: Unknown

Towing the donga to site. Photo: Unknown

 
A few mishaps along the way. Photo: Unknown

The (frozen) loo with a view. Photo: Jacque Comery

The donga as it stands today. Photo: Jacque Comery

Geology at Jacks'. Photo: Jacque Comery

The view out to sea, over the forming sea ice. Photo: Jacque Comery

More fascinating geology. Photo: Jacque Comery



Friday 23 June 2017

Air sampling with Clint and Watto

Last week I headed out with Watto and Clint to do the 6-weekly airsampling for a science project. Our Senior Comms Tech Officer Clint is looking after this project whilst the scientists are not here on station.
So last Saturday (after smoko of course), Clint warmed up the Hagglunds and we headed out at around 1030 hrs. On the drive whilst admiring the beautiful pre-dawn colours over the sea I spied the bright moon in the sky, and of course we had to pull over for pictures. ( I didn't even bring my camera along so I borrowed Watto's!!) A quick drive out to the site on the Clark Peninsula, and we were ready to change the air sampling media over.  This process is hardest for Clint as he can't wear gloves whilst doing this job.. and on this morning it was around minus 23C or so. Still with excellent helpers in myself and Watto, we soon had the job done.
We were all set by about 1115hrs ish and piled back into the Hagg to return to station. as we drove along the W-line I spied the sun finally peeking over the horizon. On a clear morning like this with no low horizon cloud we actually can see the sun as it slides along the horizon.  The last week or so has given us endless beautiful pastel skies for the few hours of light that we have.

Pre-dawn glow. Photo: Jacque Comery

Morning moon. Photo: Jacque Comery

Jac watching Clint change batteries over. Photo: Paul Watson

11:15 am minus 23 and still darkish. Photo: Paul Watcon

If i just reach a little higher.... Photo: Paul Watson

Finally. Sunrise. Photo: Paul Watson

Pastel skies. Photo: Paul Watson

Sunrise: Photo: Paul Watson

Jacque and Clint stop to watch sunrise on a rare cloudless day. Photo: Paul Watson