Some details about Alert …

Here are the (slightly modified) Wikipedia entries for Alert. I will write more about my research objectives and why we have chosen this place in the forthcoming description of my work there.

Alert

“Alert is the northernmost permanently inhabited place in the world. It is located at N 82°28′ W 62°30′ on the northeastern tip of Ellesmere Island. Alert lies just 817 km (507 mi) from the north pole and is closer to major European cities like Stockholm or Moscow than it is to Ottawa.

Alert also has only temporary inhabitants as it hosts a military signals intelligence radio receiving facility at Canadian Forces Station Alert (CFS Alert), as well as a co-located Environment Canada weather station, a GAW atmosphere monitoring laboratory, and the Alert Airport. The rugged terrain of the settlement is surrounded by hills and valleys. The shore is composed primarily of slate and shale, and the sea is covered with pack ice year-round. The local climate is semi-arid. However, evaporation rates are also very low, as average monthly temperatures are above freezing only in July and August.

There is 24-hour daylight from the last week of March until the middle of September and the sun is above the horizon from mid-April through August. From mid-October through the end of February the sun does not rise above the horizon and there is 24-hour darkness from the end of October until mid-February.

Sir George Nares was the first to reach the northern end of Ellesmere Island; he arrived on HMS Alert in 1875/1876. The weather station was established in 1950, and the military station in 1958.”

Sources for this entry:
Wikipedia on Alert, Nunavut
Wikipedia on CFB Alert
NOAA for the photo

Shipping Remaining Stuff…

After shipping dangerous goods, which really was a snap except for some logistical challenges, the main chunk of my freight was finally ready to to. I have packed coolers, reinforced cardboard boxes and waterproofed them with cling-wrap, made several trips to hardware stores and did preparatory work in the lab (instrument testing, pre-cleaning). I have also helped building a plywood box for the GC-FID, which I will also ship, the GC fitted snugly into the box. Thanks, Fred for all the help!

Alert Boxes

And – not to forget – the paperwork: Updating the planning document, maintaining equipment lists, labels for boxes, placking lists, … quite a bit, although the official bureaucracy is really minimal (and I mean it).

Highway 401

It has been a major undertaking to get all the stuff together, but after putting in a few extra shifts, everything was ready to go to Toronto on Easter Monday (the delivery in Toronto scheduled for Tuesday afternoon … just in time) 🙂 The trip was long (and boring), but all the freight arrived well. Handing it over to Environment Canada, which will forward it to Alert was smooth too and I have also got my Arctic gear (jacket, boots, pants and mittens) should it get really cold.

Getting canisters ready

Long days and evenings – not only for packing all equipment, but also for preparation of electropolished canisters that I will be using for air sampling.

Canister

Canisters are evacuated to 10-4 Torr and flushed with UHP He 3 times (with evacuations in between). To make sure that volatiles are flushed out properly, canisters are also heated with suitable mantles to 100-120 deg Celsius. While the work itself is not difficult, one needs to be present to switch the valves of the vacuum system and check temperature and pressure on a regular basis. A set of 3 canisters takes about 3 hours to pre-clean.

Built a box

I have built a box for the GC that will be shipped to Alert – or rather I assisted Fred the Chemistry Workshop genius, who builds great stuff. It has been fun spending a couple of hours sawing and hammering and the result looks sturdy enough to get the instrument up North without any problems.

Box

The plywood box is padded with some thick foam used for home insulation to prevent damage to the instrument. Screws fix the top and one sideboard for easy (un-)loading, all other boards are glued and nailed.

Pictures

Finally, I have been able to configure WordPress to allow me the upload of pictures and graphics. Not that it was difficult, but rather a lack of time to set permissions for the affected directories correctly.Anyway, just in time for my field trip – more to come.

Trip planning … continued

My trip to Alert is getting closer fast recently I have been able to ship the dangerous goods, consisting of hydrochloric acid and ethanol (which both use for cleaning purposes) and gas cylinders for the GC-FID. Getting these good ready for air cargo is a bit tricky and requires preparation by specially trained personnel. Some suppliers, who first assured me that they could provide the necessary documentation suddenly backed out – but in the end and with great support from several people everything went well.

Now I prepare the regular cargo shipment, including the GC-FID and other several large items for my measurements up North. Not forgetting anything is crucial, because there will not be a second chance – let’s see.

Back home for 10 days …

I have been back to Austria for a short while and (as expected) it turned out to be quite busy – also workwise. I gave a talk at my former institute – the IFA-Tulln – and I have also finished proof-reading the article on my SPME methodology that is now published online on the Springer Website for Analytical and Bioanalytical Chemistry. There were also a few issues concerning shipping to Alert that had to be dealt with, but things are going smoothly so far.

MilliQ water for Alert

One of the biggest challenges for my field trip into the Arctic is the availability of clean water. I need it for standard preparation, cleaning and rinsing. I have considered shipping the necessary amounts (close to 40 L was a rough first guess), but I am a bit concerned that contamination issues from the packaging (which would be plastic for weight reasons) could arise.

Milliporer Simplicity

A de-ionised water source is available at Alert, and although it is not suitable to be used as a water source itself, if is an ideal feed water source, because ultra-pure water systems typically need pre-treated water, e.g. de-ionised or reverse-osmosis.

My advisor supported my considerations and I am very grateful that she provided funding for a portable ultrapure water system, which is now ready to be shipped. Apart from the cartridge, it is fitted with a UV lamp to reduce the remaining TOC levels even further.

Photocredit: Millipore Corporation

Recent results

I have put together some results from recent measurements that were collected using the splitless GC-MS method. I have not only identified the compounds, but also quantified 12 different hydrocarbons as I have done previously (http://www.nomad.priv.at/researchblog/?p=48).

It was nice to see that repeatability of duplicate measurements is now below 10% for most species, which is a good improvement compared to the now published manuscript (http://www.nomad.priv.at/researchblog/?p=53). Concentrations were similar in all locations, indicating a more complex relationsship between location and compound concentrations than remote vs. urban. Snow properties such as age and density seem to play a crucial role. Concentration were in the lower µg/L range – well above the LOD, which is around 0.003 µg/L for most compounds.

The method is definitely fit for the arctic snow samples that I will be collecting in May at Alert, Nunavut.

Teaching – the final round

My teaching duties are almost over, the last oral student presentations are done, the midterms are corrected and graded (and were not bad at all) – so all there is left to do are some lectures on infrared spectrometry. So far I have really enjoyed things, especially the student presentation, which provides an excellent opportunity for a small group discussion and feedback by and for students.A good experience and a lot of fun!