MASIN Rothera OFCAP Diary 2010/2011


This is one of the diaries of the MASIN field season flying out of Rothera Research Station during the 2010/2011 season.


This season there are two campaign periods. During November 2010 Tom, Alex and Russ are heading to Rothera as part of the ICE-BELL project. In January 2011 Tom and Russ return with colleagues from BAS, Leeds University and University of East Anglia for the OFCAP project. Tom will also be making cloud investigation flights during this period.

 

This is the OFCAP/Cloud season diary. You can also read the MASIN ICE-BELL Diary.

 

Google Earth Flight Tracks


Arrival in Madrid and onwards to Heathrow and home.

 
 

Dash-7 delayed in Punta Arenas due to weather at Rothera.

Andy sets out travelling in South America. Remaining OFCAP team flies to Santaigo de Chile for the overnight flight to Madrid.

 
 

Remaining Rothera OFCAP team departed Rothera.

Met up with Clem and ALE personell in Punta Arenas to catch up on his news.

 
 

MAGIC Camera installation and test flight.

MASIN equipment all packed and consigned with paperwork.

 
 

Removed MASIN kit from the aircraft and handed over to MAGIC.

Final data archiving. We will depart on Dash-7 on 9th.

 
 

Just the single cloud flight this morning for Tom and Amelie but of course measuring profiles on both sides of the peninsula on the way to the cloud on the Larsen. BAT calibrations also in this flight.

 

Dash-7 came South bringing Adrian Fox, Gerry Nicholson and Andy Barker back as field ops manager.

 

Russ starting to pack up in office and consign Rene's cargo. Tor and Andy took the opportunity to get out boating.

 
 

The campaign continues with an early flight 176 taking off before 5am local time with Alan flying Andy, Russ and Nick Allford across the peninsula at sunrise. Tom is up on forecasting duties as it's the forecasters day off.

 

Flight 177: Tor and Tom repeat flight with pilot Al. Downwards looking PIR broken on landing. No further spares.

 

 

Flight 178: Tor, Tom and Andy complete the third measurement flight of the day with pilot Doug.

 

Dash-7 delayed in Falklands awaiting MOD flight.

Rene does a long light in the Basler, landing at Marambio to refuel.


Peter leaves on the Dash-7. Rene is flying survey from Rothera in the Basler while waiting for good weather to get Halley.

 

Start of an intensive campaign. Amelie launching 6 hour radiosondes.

 

Flight 174: Tor, Tom and Tamsin cross peninsula.

Flight 175: Andy, Tom repeat.

 
 

Tom is on gash.

 

Tor, Andy and Russ flew an early cross peninsula flight. (flight173)

 

Amelie is working on a visit to resurrect North Adelaide AWS.

 

Peter has finished packing and will now depart Rothera tomorrow.

First ITRES flights on a beautiful sunny day at Rothera. Basler returned from Punta with Rene Forsberg to collect some of his (ex-ICE-BELL) kit en-route to Troll.

Andy, Tom and Amelie flew a morning flight on 68 S to look in more detail at multiple levels across the peninsula but returned early as there was much less wind than expected (flight171).

 

Tom, Amelie and Celine flew flight 172 after lunch making cloud measurements in Marguerite Bay.

 

Peter started packing his IMAU cargo and Russ started the paperwork for the MASIN kit.

 

Intention is to de-kit MASIN aircraft on the afternoon of the 7th. We all depart Rothera on 9th.

 

Amelie launched the OFCAP Rothera morning radiosonde.

 

Tor and Russ flew a very early Northern box pattern looking at possible light westerly flow over to the Larsen and back (flight169). In the afternoon Amelie, Tom and forecaster Geoff flew flight 170 looking at clouds over the Larsen.

 

Both Baslers departed North. Borek twin otters arrived. Work started on repairing BB.

 

Twin Otter BC returned to Rothera and closed Larsen Camp, bringing Peter and Ian back to Rothera.

 

Geophysics Basler & Polar 5 arrived on their way through to Punta Arenas to return with Rene.

 

Water extracted from BAT Probe tubes this morning. Andy catching up on plots from recent flights.

 

Tom flew flight 168 working in clouds in Marguerite Bay as the forecast at Rothera wasn't suitable for going further afield.

 

ITRES fit to PASIN aircraft ongoing. Damaged twin otter 'BB' returned to Rothera for repair.

 
 

Andy launched the Rothera morning radiosonde. Low cloud at Rothera.

 

Tor, Tom and Amelie flew flight 166 over the Peninsula at 68S and back across Marguerite Bay followed by Doug flying Tom and Russ on flight 167 low in Marguerite Bay looking at the wind blowing down the valleys for Tor. This was in immersion suits and limited to underwater escape trained people.

 

 

Joint survey aircraft/teams photo.

 

Larsen camp started to dismantle instruments.


Amelie launched the Rothera morning radiosonde. Cloud & sleet at Rothera.

 

MASIN aircraft has a day of maintenance. Tom did CAPS Probe calibration. Russ did temperature probe calibration check and added a pump to the CPC.

 

Russ helped remove the DTU lidar from PASIN aircraft and fitted the Inertial+ as a backup IMU to MASIN.

Phil arrives back in UK.

Amelie is getting up to launch the 06Z Radiosonde.

 

Russ and Andy flew flights 164 and 165 over to Larsen camp, also delivering charged batteries and a helium cylinder to the camp. 6 hourly radiosonde launches stoped with the 18Z launch.

 

Tom was a tour guide for visitors from the Spanish ship. Dash-7 returned from Punta Arenas with Magda ready for MAGIC flying in AZ and Hugh Corr and the ITRES team for survey flying in BL.

 

Started 6 hourly radiosondes at Rothera and Larsen from 12Z.

 

Russ and Andy flew a similar flight to yesterday in the morning (flight 162), i.e. upwind of Adelaide Island across at 67S, doing a traverse at 64W to 68S and return back across 68S.

 

Conference call at 12Z. Tor and Tom flew flight 163 (Vorticity Streamers) into the evening.

Phil departed North on Dash-7 to Punta Arenas.

Forecaster's day off, Tom gave main brief, Tor/Andy gave OFCAP brief.

Spanish ship Las Palmas came in to take 3 people to Horseshoe Base.

 

Tor, Amelie and Tom flew an afternoon OFCAP flight including delivering a Helium cylinder to Larsen camp. Flights 160 and 161.

 

Larsen camp flew an 18Z radiosonde.

Russ constructed a heater for GRIMM aerosol inlet. Phil finished packing ready for departure tomorrow. Amelie flew 12Z Rothera and Andy flew the 18Z one.


Dash-7 flying to Sky Blu. Amelie and Russ flew a cloud flight over Larsen ice shelf.

 

We have permission to deliver a Helium cylinder to Larsen Camp in MASIN aircraft if weather improves there. Burns night.

 

 

Flew South to Marguerite Bay looking for lower level waves lead by Tor. Nothing found and no cloud to sample on return. Overflew North Adelaide instead to look at collapsed mast which looked the same as last time.

 

Looking ahead to possible Larsen intercomparison Wednesday morning and then OFCAP westerly flow flights towards the weekend.

 
 

Andy and Amelie did the morning radiosonde. Tor and Andy gave the morning brief.

 

Tom, Amelie and Andy flew flight 157 to look at the barrier jet on the west of peninsula to the North of Adelaide Island and through cloud.

 

Data suggests the Avery tall mast has been blown down.

 
 

Dash-7 due to return from Punta Arenas. Amelie launched the Rothera 12Z radiosonde and a later one for the flying. There will also be a morning Larsen launch and an 18Z flight.

 

Tom did the flight plan and is catching up on looking at cloud flight data. Tor, Andy and Russ flying across the peninsula and looking at more detail at the jets in Marguerite Bay to the South of Rothera.

American ship The Gould due in for CTD calibration and party night. MASIN aircraft, PASIN aircraft and one other twin otter at Rothera this morning. Still awaiting a decision on the the fourth, damaged twin otter at Sky Blu.

Polarstern arrived with visitors and to bring additional fuel. Amelie is a tour guide for the day. Mill inlet weather marginal and aircraft required for field party uplift in morning but headed off in afternoon with Phil and Tor placing the Mill Inlet AWS on Cole peninsula.

 

Dash-7 went North with a medivac. Polarstern helicopters ferrying batteries to Reptile Ridge.

 

Tor gave 8:30am brief. Another very useful conference call.

Tom, Russ and Andy flew a cross peninsula traverse investigating convective cloud on Larsen Ice Shelf. PASIN aircraft returned to Rothera and Hamish was uplifted having finished his fieldwork.

 

Intention is to start looking to bring out Larsen camp from 1st Feb. MASIN should be able to fly until Feb 7th with a possibility of extension beyond.


Tor gave 8:30am brief.

 

Russ reconfigured JAVAD GPS to look at poor performance of right hand wing antenna for attitude measurements. Flight was inconclusive as performance was good.

 

 

Polarstern helicopters visited during the day.

Tom, Tor and Russ flew flight 154 into some convective cloud to the south and west of Adelaide island. We were then requested to re-visit the North Adleaide AWS to land and measure the wind direction before returning to Rothera.

 


Tor gave 9am local briefing. Tor is also on gash duties.

 

Phil, Andy, Celine and Malcolm headed off to install Avery tall mast.

Amelie launched the Rothera OFCAP radiosonde.

 

Tom and Amelie flew flight 153 measuring clouds in Marguerite Bay as conditions remainded cloudy and low winds at Larsen Camp. Larsen AWS readings here.

 

Amelie went up onto Reptile Ridge. Andy played football and hurt his foot.

 
 

Tor gave 8:30am local briefing. Tom, Amelie and Russ flew cloud flight 152 out to the Larsen. They checked weather at North Adelaide and Avery on the way but neither workable.

 

On their return, Phil, Andy, Celine and Malcolm had managed to get into North Adelaide to uplift the small AWS and install the modified 15m mast. Note the logger seems to be the one intended for Avery.

 
 

Phil and Andy went up to look at the mast and brought everything down, ready for deployment.

 

Tor gave 9am local briefing. Tom, Amelie and Russ flew flight 151 out to NW of Adelaide Island into frontal cloud and picked up so much icing that the CAPS Probes heaters were unable to keep it free of ice at the end of the flight.

 

The turbulence probe heaters seem to be able to mostly cope ok though.

 

All forecasts pointed towards there being no interesting OFCAP or cloud conditions today, so no flying. This gave our pilots and mechanics the day off. Tor also got a lie-in.

 

After just 4 hours of sleep, Amelie valiantly got up to launch an OFCAP radiosonde.

Tom and Phil went up the hill to look at the mast. Amelie went boating. Russ finally started adding a map and track to the logging software display so we know where we are at the console.

Evening briefing with Andy and Tor indicates no interesting OFCAP conditions but possibility of lunchtime cloud flight into front off North Adelaide.

Amelie is on gash cleaning duties. Phil, Andy, Malcolm and Celine put up the new rope guyed 15m mast. Andy and Tor launched the Rothera morning radiosonde.

 

Phil analysed North Adelaide retrieved data. Peter and Ian finished the snow density pit on Larsen. Tom and Russ flew flight 150 looking at cloud over the Peninsula and on Larsen.

Saturday night meal followed by partying.

Larsen flew a radiosonde as well as Rothera's normal one.

 

No flying today due to conditions not being so interesting and runway cross wind component at Rothera. The twin Otter returned from Halley. Dash-7 did a Sky Blu run.

 

Andy and Phil continued mast rigging for a trial tomorrow. Tom looking at AHRS data to fill gaps in GPS attitude data. Russ fitted the roof inlet to the MASIN aircraft.

 

Amelie visited down the show crevasse.

 

We had a successful conference call. Phil and Andy continued mast rigging.

 

Tom, Tor and Andy flew flight 149 in Easterly Foehm conditions, also looking at jets on the Western Side.

 

Celine and Amelie launched the 12Z radiosonde and Amelie launched a further one at 18Z. Larsen flew an 18Z sonde as well.

 

A later start today as the new forecaster spent the evening out camping as part of his field training.

 

Andy and Amelie launched the Rothera Radiosonde.

 

Tom, Russ and Amelie flew flight 148 over the Peninsula looking at an Easterly Foehn effect.

 

Phil and Andy started work on rigging a new tall mast.

 

Larsen camp flew a radiosonde.

 

Russ finished fitting the MASIN equipment and it was signed off.

 

Larsen Camp launched an early Radiosonde.

 

Andy and Tamsin launched Rothera's morning Radiosonde.

 

Tor and Andy got model output to Rothera and gave a flight planning presentation.

 

Tom, Russ and Tor flew a 'Flight 5', Barrier Wind type flight across the Peninsula with Doug C and Al H as pilots as Doug who flew most of the ICE-Bell campaign and previous cloud flights for us will be off to Pine Island tomorrow. A successful first flight with all instruments appearing to work ok. Flight quick-look here. The flight was a little later than planned due to deconflicting with Dash-7 Sky Blu movements.

 

Avery AWS missed a transmission but has transmitted since.

Tom and Russ fitted the instruments to MASIN aircraft and tested on ground power.

 

The other twin otter was working elsewhere in the morning but took Phil, Amelie, Andy and Celine out to North Adelaide with the (Larsen) Short mast AWS to deploy.

 

Andy and Tor working on models/predictions again.

 

First data message in from Avery AWS - looking good.

 

Dash-7 came back from Punta Arenas. Tom ordered the aerosol inlet through the SSC!

 

Andy and Tor finished their field training and started working on a met brief for tomorrow.

 

Phil, Amelie and Russ set off to fly to Mill Inlet but spotted on the way across that Avery plateau was looking ok, so installed the (short mast) Mill Inlet system on the Avery.

 

They continued to Larsen Camp to drop off some wood, a saw and glacio poles. They picked up the (short mast) Larsen wintering OFCAP AWS - this is now back at Rothera.

 

Finally we managed to Land at North Adelaide site and retrieve everything back to Rothera. The mast had collapsed and bent due to a turnbuckle bolt shaking lose on the 2nd guy from the top. Propvane damaged and some mast sections bent, otherwise looking ok. Everything returned to Rothera.

Another twin otter returned to Rothera. Celine's Birthday Party.

Dash-7 taking director and VIPS North today. Andy and Tor doing field training with camping tonight.

 

Low cloud at North Adelaide, but Phil, Amelie and Russ headed out to Larsen camp to look at MW15 via Mill Inlet. Mill Inlet had poor contrast from thick high cloud on the way out.

 

At Larsen camp, problems diagnosed as shorting cable to sonde pre-amp which has pre-amp power on cable so causing other internal problems. Cable replaced and successsful sonde flown. Also delivered extra solar panels and batteries and with instructions from Phil, Peter had identified the cable to get the BAS microbarograph running.

 

Amelie launched a 12Z Rothera radiosonde.

On return Mill Inlet had patches of good contrast. Sites were seen with lots of crevassing. Aircraft did not land.

Still just the one (MASIN) Twin Otter on base. It looks likely that another will return on Saturday for maintenance and therefore Sunday will most likely be the MASIN instrument fit.

 

Phil on gash duties. Andy and Tor doing their base training. Evening meal for VIPs. Tamsin back from Sky Blu on Dash-7.

 

North Adelaide and Mill Inlet not possible due to cloud. Twin Otter attempted work on Flask glacier.

 

Peter and Ian had good weather at Larsen Camp. They intended to start the BAS microbarograph today but are missing a USB/Serial converter. Peter also said that he might be short of power to keep everything running but still had things to try.

 

Rothera was already scheduled to launch a 12Z Radiosonde as part of its routine soundings. Larsen Camp also launched but had errors on start up of the MW15 and intermittent signal.

Dash-7 flew to Rothera with Tom, Tor, Russ and Andy. Tom takes over from Phil coordinating the OFCAP activities at Rothera.

 

An attempt was made to fly to North Adelaide with Phil + GA today but were unable to reach the site due to cloud.

 

Ian and Peter completed installation of the Flux mast at Larsen camp.

 

Foggy again at Rothera. No Dash-7 flight. Tom, Tor, Andy and Russ still in Punta Arenas.

 

Possibility of visiting North Adelaide later today if fog lifts at Rothera.

 

Ian and Peter at Larsen intend to install a 4m mast with sensible and atmospheric latent heat fluxes today.

 

 

Rothera TAF and morning observations are here.

Tom, Russ, Andy and Tor are in Punta Arenas waiting for the fog to lift at Rothera before they can fly. Although it lifted at times, it was not sufficient to be able to fly.

 

Latest Rothera webcam. Punta Arenas airport webcam.
Dash-7 can be seen parked in the corner of the apron on the East camera.

 

Peter and Ian at Larsen camp have erected IMAU radiation equipment.

 

 

Ian and Peter were flown in to establish Larsen Camp with the IMAU radiation balance equipment , the OFCAP wintering AWS, the radiosonde equipment with consummables for 18 flights and a BAS microbarograph unit.

 

Tom, Tor, Andy and Russ arrived safely in Santiago de Chile and continued to Punta Arenas with all their luggage, including the extra parts for Peter.

 

Amelie launched the Rothera radiosonde as part of her training.

 

Dash-7 Flew to Punta Arenas bringing out two aircraft mechanics, Steph and Kevin and also Field Ops Manager Andy Barker.

Test AWS with updated software performed ok. This has now been taken down ready for flying to Larsen Camp. Loggers for Mill Inlet and Avery have also have their software updated.

 

Tamsin is now away at Sky Blu servicing a weather station there.

 

Tom, Russ, Andy and Tor started their journey South from London Heathrow to Madrid ready for the overnight flight to Chile. Returning base commander John Withers was with them but the Director Nick Owens and 3 VIPS were making their own way to Punta Arenas. They will join us for the Dash-7 flight to Rothera.

 
 

Happy New Year. No flying today as weather poor.

 

North Adelaide recent data shows no wind and constant temperature and humidity. It's feared there might be a problem with the mast. It now makes sense to revisit this site before attempting deployment at the Avery site.

 

Preparations for Larsen Camp are still ongoing.

 

 

The logger software on the test unit at Rothera has been updated. If this works we will update the other loggers.

We tried to fly to Avery today although the weather looked marginal. The closest we could get was within 8km and considerably lower in altitude than we are aiming for. Steve landed anyway only to find really deep soft snow. This took considerable work before it was possible to take off again.

 

The idea on the return was to take a look at the North Adelaide AWS, but without the coordinates, it was not possible to spot it. A second flight went out towards the site but had to return due to low cloud at the site.

New Year's Eve party was optional fancy dress held in the garage.

 

Phil learning to survey masts from Ian Hey.

Peter and Ian H practicing with MW15 radiosonde system.

Pater and Ian H learning how to plug in Larsen AWS.

 

MASIN aircraft AZ back at Rothera. Needs some work on nose ski.

 

 

GPS base station checked ok after being blown over. Replaced tripod using even more rocks.

 

Two transmissions from North Adelaide AWS not received at Rothera.

Aircraft tasked to other projects today and weather forecast to be bad.

 

The MASIN aircraft 'AZ' is heading back from South Pole and arrived Fossil Bluff today.

 

Problem detected with u/v figures in Adelaide Iridium messages.

 

Amelie and Peter see the first humpback whale siting of the season.

 

Trimble GPS base station blown over in high winds.

 

Standby but too cloudy. Amelie working on GPS data.

 

GPS base station tripod positioned on Rothera survey point.

 

Standby for Mill Inlet/Avery Plateau but too windy. Amelie working on GPS data.

 

Re-sorting boxes from deployment on 24th and preparing for next.

 

Amelie walked up and skied down from the caboose at Vals.

 

Merry Christmas.

 

Successfully deployed the North Adelaide station.

 

No chance to deploy any of the OFCAP weather stations today. No planes! AZ is at South Pole over Christmas, BL out with PASIN, BB at Sky Blu, and BC gets one of the regular checks today. Next chance tomorrow afternoon...

 
 

Standby to deploy AWSs during the afternoon at North Adelaide, Avery or Mill Inlet, depending on weather for Phil, Amélie, Tamsin and Ian Hey.

 

Phil and Peter working on Larsen Camp equipment.

 

North Adelaide looks possible. Looking at weather again later. No aircraft available.

 
 

There was a possibility of having an aircraft available this afternoon to deploy Mill Inlet but stopped due to fixing problems with the comms logger timestamps. All the logger boxes needed to be opened in order to fix the comms logger timestamps.

 

Iridium messages have been received from the logger under test and the messages are now routing to Rothera for checking/decoding. Readings are sensible and compare well with local Rothera Met. station.

 

Ian is doing field training for the new arrivals with camping tonight.

 

 

 
 

Boxes weighed and moved to hangar apron container ready for deployment.

Iridium messages received from loggers but problems with the timestamps from comms loggers. There are two loggers within each logger box - one that does basic logging and then passes to a second logger for transmission.

 

Packing ready for first deployment.

 
 

A relaxed Sunday. Dash-7 flew from Falklands to Rothera. Peter from IMAU arrived, bringing the numbers of OFCAP scientists on base up to 3.

 

The spare part for the PASIN aircraft arrived with Steph to fit it.

 

The test AWS outside was left running for today to check data transmission via the Iridium satellite link. Phil got his laptop back from comms and checked the logger. Seems to be running ok.

 
 

Ian finished adjusting the tall mast guy lines.

Tamsin, Amélie and Celine erected the small AWS Solar panel outside.

Amélie wrote content lists for the boxes. They only need weighing and then they can be driven over to the apron, ready to be deployed.

 

Amélie gained access to the mirrored folder, where all our data will appear including the Iridium transmissions from the stations.

When Celine and Phil came back from ice climbing, everyone helped put up the test AWS. Unfortunately we cannot run it yet as a laptop that is needed for this test is still in quarantine with the IT people here.

 

Dash-7 return South delayed.The Dash7 is delayed, and won't come in until tomorrow lunch time. It'll bring Steph, the Air Mech, and Peter Kuipers Munnecke, who'll bring the numbers of OFCAP scientists on base up to 3. leave it running for at least 1 1/2 days and check data transmission via the Iridium satellite link.

 

Peter arrives in Falklands.

Ian and Amélie sorted out deadmen for the Avery in the morning, while Phil continued the bench tests, modified the solar panel installation, and finalised the layout of instruments, batteries and logger box at the top of the tall mast AWSs.

 

We got the comms guys onto the MASIN telephone problem and started the packing lists for the different boxes.

 

 

After lunch Ian and Amélie started adjusting the guy lines for the Avery mast, using the guy lines from the system Russ and Ian had put up at Vals. Phil managed to find some fitting thimbles for the preformed deadends that form the eyes at the end of the guy lines.

 

All but one logger boxes have got their "all clear" from Phil. The remaining one will be the Larsen winter AWS.

 

Dash-7 flew North to Falklands with John Withers. Dave Wattam is now Rothera Base Commander. Peter departs Brize Norton for Falklands.

Phil, Ian, Tamsin and Amélie met for a very constructive chat. Phil went on to work on the electronics. Amélie and Ian went over to the hangar to sort out the equipment returned from the mast trial at the caboose.

 

Phil tested the loggers in the lab with the Larsen AWS instruments. When the bench testing is complete, Tamsin and Amélie will put one of the small systems up in front of the building.

 

Amélie went for a run on the runway in the evening.

 

“Training day” for Phil and Amélie : First Aid Refresher, Safety around aircraft, “how to light a stove or a tilley lamp, not suffer from CO poisoning and not burn the base or tent down”. All good fun, and done by lunch time.

 

Amélie’s afternoon was spent acquiring clothes from the sledge store, trying to make sense of what boxes are where and making "to do" lists.

She also got all the bits for the GPS surveying together, found the tripod in one of the MAGIC cargo boxes, and spent some time checking how it all fits together, whether the batteries are charged and so on.

 

Phil started re-assembling the loggers once Amélie had downloaded and printed the instructions document.

 

Ian Hey was on gash/cleaning duties.

Phil and Amélie flew Punta Arenas to Rothera on the Dash-7.

 

Tea and welcoming brief, unpacking. It was a stunning day, the sun shone, it was really warm! Very conveniently the programme for “New Arrivals” included a walk Round the Point.

 

With all the sun, and the tons of snow it was difficult going, and every few steps people sank in up to their knees or deeper. We were rewarded with several Adelie and chinstrap penguins, elephant seals and some other seals (Weddell?).

 

Ian retrieved all the mast equipment from up at the caboose.

 

Russ headed North, Punta Arenas to Santiago de Chile for the overnight flight to Madrid.

Russ starts his journey North on the Dash-7 flying to Punta Arenas. A sub 4 hour flight due to tail winds up to 70 knots.

Phil and Amélie arrived safely in Punta Arenas and met Russ in the evening for a handover.

 

A busy and productive last day for Russ. Hangar tided up and boxes all packed away. Humicap sensor looked at and adjusted to make readings more believable. Hard disk mirror created for the new MASIN PC and inserted into the spare. Labview re-installed in the old MASIN PC so that fieldpoint works properly in case the new machines continue to give trouble. UPS rack unit constructed and wired to run everything switched through the Synchroniser Unit i.e. both PCs and screen.

 

Ian finished making the Lithium battery canister supports for the tall OFCAP masts.

 

Weighed all the Larsen mast and other poles. Science load to be flown to Larsen camp currently totals 4000 lbs with the IMAU cargo, tents and living equipment to be added to that.

 

Phil and Amélie left from Heathrow this morning to fly to Punta Arenas via Madrid and Santiago de Chile.

 
 

A day back working on MASIN equipment today. We have been unable to make the new CAPS PCs work with the the serial image acquisition card, so the cards were all replaced in the old PC and confirmed that everything was working. The flight rack slides were reconfigured to take the CAPS PC.

 

The GRIMM instrument was mounted on a board that will sit on the top of the rack and the logging software loaded onto the CAPS PC.

The CPC was also bolted down onto a rack mount tray that will sit where the LICOR instrument usually is as this has gone to Bird Island. The CPC logging screen was reduced in size to make it easier to see all three instrument screens at the same time. The PC was run to check that it could happily log all three instruments at the same time.

 

Ian constructed the shower boards for Larsen camp. PASIN made a flight over the flask glacier.

 

VP-FBL developed a fault meaning that PASIN are unable to fly until a spare part arrives.

Back up the hill to the caboose again today for Russ, Ian and Ian. We finished rigging the mast and winched it up. We had the derrick guys just right and it went up really straight first time. None of the springs in the derrick guys were at full stretch.

 

We then fitted the top boom and weighted the mast with two sets of spare turnbuckles to simulate the weight of the battery boxes and winched it up again. .

This time a couple of the top springs did extend until their stops. The top of the mast was also more unstable until the main temporary guys were moved around once it was up.

 

Tamsin came up in the afternoon to see the winching operation once more before we lowered the mast for the last time and de-rigged it. All the guys were coiled with the deadends still in position marking their length and attached to the guy plates and labelled.

 

The equipment was left up at the caboose. We also made the deadmen for the small AWSs and packed them ready to go. PASIN did a successful test flight.

This morning we did a bit of trigonometry and made up rope triangles for right angled and equilateral triangles in order to mark out the mast anchor loacations on the ground. We finished making the temporary deadmen for the mast.

 

In the afternoon, Russ, Ian Hey and Ian Strachan took the remaining mast equipment up to the caboose near Vals.

We staked out the anchor locations and dug in the deadmen before starting to rig the guylines. We realised we couldn't complete this as we didn't have the thimbles. We later located some from the base mast supplies.

 

The Dash-7 flew runs to Sky Blu.

The two small AWS battery boxes were constructed today. The rsync/ftp file link between the OFCAP collaborators and Rothera was also correctly trialled. All the AWS leads were identified and placed in the correct boxes. One Zarges was packed for each small AWS ready for deployment/testing.

 

Ian Hey finished his last awayday on the Larsen with Dan. He also fitted the limiting cord to 15 springs ready for the first mast test.

 

The Dash-7 flew a successful test flight to Sky Blu and back.

 
 

With the arrival of JCR cargo, Russ unable to leave and Phil/Amélie unable to arrive until the Dash-7 is fixed, Russ starts off the OFCAP work.

 

Russ on gash duties.

 

Sorted all OFCAP mast hardware. Identified mast components and split into 4 location piles.

 

Ian Hey walked around cargo locations and identified what will go where.

 

Dash-7 maintenance complete on 3 of the engines propellors.