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blumenkraft

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Re: MOSAiC news
« Reply #800 on: May 27, 2020, 06:42:51 PM »
R11 going up, R12 going down. Partly fresh snow on the one, melting due to above freezing temperatures for the other one i guess.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #801 on: May 27, 2020, 11:12:30 PM »
https://twitter.com/CKatlein
A very good read about platelet ice,  https://bit.ly/3dXH3sf
Quote
Christian Katlein
@CKatlein
·
19 May
The paper about our recent discovery of platelet ice under #seaice in the winter #Arctic during @MOSAiCArctic   is under review in #AGUpubs Geophysical Research Letters and already available as preprint on @ESSOAr_org,  https://bit.ly/3dXH3sf

@AWI_de     @meereisportal      @AGU_Cryo

and some evidence of surface melt at the mosaic floe  cffr
Quote
Christian Katlein
@CKatlein
Surface melt is dramatically changing the surface of the @MOSAiCArctic  ice floe right now. This is a picture of our autonomous light measurement station from yesterday and today showing significant melt! #icedrift
« Last Edit: May 27, 2020, 11:25:50 PM by uniquorn »

Glen Koehler

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Re: MOSAiC news
« Reply #802 on: May 28, 2020, 02:38:55 AM »
   I hope somebody is tabulating these direct observations of surface melt with readings from satellite sensors to help calibrate interpretation of signals to distinguish between air moisture vs. surface melt vs. melt ponds vs. open water.  That would add to the knowledge being gained by having the MOSAIC folks present at the scene of the crime during melt season.

uniquorn

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Re: MOSAiC news
« Reply #803 on: May 28, 2020, 10:39:10 AM »
Install the R Cairo library and add type=cairo when you render
A big improvement, thanks. The animation file size is bigger though. Will look into that.
12 days of meandering drift.

uniquorn

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Re: MOSAiC news
« Reply #804 on: May 28, 2020, 10:46:59 AM »
From the Norwegian Meteorological Institute:
Strong sea-ice drift for MOSAiC in 2020
https://cryo.met.no/en/mosaic-drift2020
Quote
Since January, Polarstern has drifted much faster than the ice drifted in the previous ten years.
...
The animation shows the trajectory of the MOSAiC drift campaign (red) from its beginning in October 2019 and 10 simulated trajectories (other colors) from recent years. The drift of Nansen’s Fram from January to April 1896 is also shown. The simulated trajectories are initiated at the position of MOSAiC on January 1st, and continued until May 1st. They are based on the EUMETSAT OSI SAF sea-ice drift product (OSI-405).
Posting the animation with another quote to accentuate how much faster the 2020 drift has been.
Quote
Since January, Polarstern has drifted much faster than the ice drifted in the previous ten years. In the same four month period (Jan-April) in 1896, Fram drifted only about half the distance. This is likely a result of a weaker ice pack. The ice in the Arctic Ocean has become significantly thinner, but also much younger, than only a few decades ago. This means that it can be more easily moved around by winds and ocean currents.

Niall Dollard

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Re: MOSAiC news
« Reply #805 on: May 28, 2020, 06:23:56 PM »
The temperature on the Polarstern went positive today (25th May) at 14 UTC and has remained above zero since.

First hourly value above zero this year. (It came close to zero (-0.1) on 20th April)

At 82.4 north.

Polarstern is back below 0 C again today 28th May at 10 UTC after spending the past 68 hours (almost 3 days above zero).

I wonder did the buoys (above the surface) record a similar length of time above zero ? Or were there any surface inversions at play.

blumenkraft

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Re: MOSAiC news
« Reply #806 on: May 28, 2020, 07:07:52 PM »
I have no idea what this means, but 'transmitted' is through the roof for both, R11 and R12.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #807 on: May 28, 2020, 10:33:04 PM »
I can guess what transmitted means but let's see if the data verifies tomorrow before jumping to conclusions.

Tbuoy near surface temperatures, May24-28 for Niall. click to play. Each one tells a different story. T73 may have a problem. Some buoys reported this morning (last frame)
Thickness charts here
« Last Edit: May 28, 2020, 10:38:28 PM by uniquorn »

uniquorn

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Re: MOSAiC news
« Reply #808 on: May 29, 2020, 10:49:31 AM »
PS position this morning compared to the buoy it left behind.

blumenkraft

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Re: MOSAiC news
« Reply #809 on: May 29, 2020, 05:10:48 PM »
More changes in the readings today.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

oren

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Re: MOSAiC news
« Reply #810 on: May 30, 2020, 02:00:50 AM »
Thanks for the update. All are changes for the worse and support the loss of albedo inferred by temps and satellite images..

Frivolousz21

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Re: MOSAiC news
« Reply #811 on: May 30, 2020, 09:50:25 AM »
Thanks for the update. All are changes for the worse and support the loss of albedo inferred by temps and satellite images..

Yeah but look at where they are being taken tho

I got a nickname for all my guns
a Desert Eagle that I call Big Pun
a two shot that I call Tupac
and a dirty pistol that love to crew hop
my TEC 9 Imma call T-Pain
my 3-8 snub Imma call Lil Wayne
machine gun named Missy so loud
it go e-e-e-e-ow e-e-e-e-e-e-blaow

uniquorn

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Re: MOSAiC news
« Reply #812 on: May 30, 2020, 02:34:37 PM »
Pretty far south at 2020-05-30T00:00:06, 83.1581N 7.5368E for R12
Nevertheless, good to have real on the ice data to look at. Temperatures have been similar in other locations.

blumenkraft

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Re: MOSAiC news
« Reply #813 on: May 30, 2020, 06:23:47 PM »
From the web-app (https://follow.mosaic-expedition.org)

Quote
Both the thick sea ice and the ice pressure cause ongoing tough
times for the Polarstern in the high Arctic latitudes. However, when
observing for several hours the same ice floe through the ships'
windows, the view is not getting tedious. Instead, the opposite is
true: The ongoing temperatures above the freezing point lead to a
fast and impressive change of the sea-ice surface. While a couple of
days ago, we observed consistent white ice floes, these turned into
increasing blue surfaces. The reason is the widespread snow
melting due to the high temperatures. In addition, already snow-
free areas allow for the formation of first melt ponds on the ice.
These observations give clear evidence of the begin of the Arctic
summer melt season in that area - one of the most exciting and
important phases for the Arctic sea ice and its associated
interdisciplinary processes.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #814 on: May 31, 2020, 01:04:03 PM »
PS making better headway over the last 2 days.
Today's S1 showing how far they have to go to open water. PS path and white dot is easily visible on the left. cffr.
« Last Edit: May 31, 2020, 05:53:43 PM by uniquorn »

blumenkraft

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Re: MOSAiC news
« Reply #815 on: May 31, 2020, 08:41:57 PM »
Erratic...
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

SimonF92

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Re: MOSAiC news
« Reply #816 on: May 31, 2020, 09:07:54 PM »
Erratic...

Rain messing with the sensors?
Check out our home-grown ASIF MOSAiC website @ www.mosaic-ice.com:8501

uniquorn

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Re: MOSAiC news
« Reply #817 on: June 01, 2020, 11:01:31 AM »
It's been cloudy, perhaps a flurry of fresh snow.
PS location today

uniquorn

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Re: MOSAiC news
« Reply #818 on: June 01, 2020, 02:32:50 PM »
T79 having an event since may28. Surface temperatures rise to ~0C progressively from 40cm above snow/ice level to ~thermistor48, then erratic data, then a partial recovery.
Perhaps a temporary submerge.

uniquorn

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Re: MOSAiC news
« Reply #819 on: June 02, 2020, 10:01:18 AM »
PS probably over the 81N line by now.
Yesterday's S1 crop showing the path from top left. 1 pixel white dot to show PS location.

blumenkraft

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Re: MOSAiC news
« Reply #820 on: June 02, 2020, 06:25:51 PM »
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #821 on: June 02, 2020, 11:07:03 PM »
That was quick

interstitial

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Re: MOSAiC news
« Reply #822 on: June 03, 2020, 04:26:57 AM »
That was quick.
I think they have been under power to swap crewman the last few days not drifting. Or did I miss something?

blumenkraft

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Re: MOSAiC news
« Reply #823 on: June 03, 2020, 08:24:11 AM »
No, Interstitial, you are right.

I think what Uniquorn means is that they are now faster than in recent days.

I had the same impression BTW.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #824 on: June 03, 2020, 09:24:56 AM »
Yes, they left the mosaic floe late on may16. For PS to be travelling at yesterday's speed, there must have been a lot of 'slush' on that route. Unfortunately no panomax updates up to this point. No S1 yesterday. No buoy updates yet today either.

Interesting bow radar image from may25th in thicker ice
« Last Edit: June 03, 2020, 01:40:43 PM by uniquorn »

blumenkraft

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Re: MOSAiC news
« Reply #825 on: June 03, 2020, 04:35:56 PM »
Say what?

“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

blumenkraft

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Re: MOSAiC news
« Reply #826 on: June 03, 2020, 04:43:42 PM »
Water temp is the column on the right. Check out that harsh dividing line.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #827 on: June 04, 2020, 10:26:18 AM »
Buoy drift update, may1-jun4

Niall Dollard

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Re: MOSAiC news
« Reply #828 on: June 04, 2020, 11:50:23 AM »
The three ships Polarstern, Maria S. Merian and Sonne are now visible (live) on the Port of Lonyearbyen webcam.

https://www.spitsbergen-svalbard.com/photos-panoramas-videos-and-webcams/spitsbergen-webcams.html

uniquorn

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Re: MOSAiC news
« Reply #829 on: June 05, 2020, 12:39:46 PM »
Update on IMB087 from https://twitter.com/CKatlein confirming melt (ponds) then fresh snow as indicated by the radiation buoy transmittance chart upthread
« Last Edit: June 05, 2020, 01:06:51 PM by uniquorn »

uniquorn

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Re: MOSAiC news
« Reply #830 on: June 06, 2020, 12:06:05 PM »
There's a lot to think about in this great animation from Lars Kaleschke on https://twitter.com/seaice_de comparing PS(green) with Fram drift from 1895-6(red).
Keep in mind that it includes the recent period when PS was under steam.
« Last Edit: June 06, 2020, 12:13:01 PM by uniquorn »

blumenkraft

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Re: MOSAiC news
« Reply #831 on: June 06, 2020, 12:49:55 PM »
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #832 on: June 06, 2020, 08:05:49 PM »
ROV video from article above, best viewed fullscreen



Quote
On the last day of 2019, Christian Katlein learned first-hand just how important it can be to explore the Arctic sea ice from below. As the BEAST slowly drew closer to the underside of the ice, on the display he suddenly saw collections of delicate ice platelets, which seemed to hang like cirrus clouds under the ice and glittered in the ROV’s spotlights. The first thought that crossed Katlein’s mind was that it reminded him of a snow-covered forest in winter, glittering in the sun. “Until that day, we had only ever seen platelet ice in the Antarctic. Finding it in large quantities below the MOSAiC floe in winter came as a complete surprise to us,” the physicist recalls.

Accordingly, Katlein and his colleague, the AWI oceanographer Dr Benjamin Rabe, began investigat-ing the phenomenon in more detail. They found a first clue in the temperature readings from the ocean buoys deployed in the vicinity of the MOSAiC floe. They all indicated that the top five metres of the water column had become supercooled during the winter, i.e., the temperature was ca. 0.01 degrees Celsius below the actual freezing point for the seawater. So why didn’t it freeze?

“The Arctic seawater is so calm, and especially so clean, that it contains virtually no crystallisation nuclei like dust particles, algae or other tiny impurities. But these are necessary for the formation of ice crystals,” says Katlein. It is only when the supercooled water below the underside of the sea ice collides with crystallisation nuclei that the often platelet-like ice crystals are formed. The experts observe the same effect when they lower cables or metal measuring rods into the supercooled water below the surface; after just a short time, they are covered with crystals.

Some details in the latest fomo. 6 rainy days but doesn't say when.
213 ice cores totalling 393m so average core thickness = 1.845m. We don't know where they are from.
« Last Edit: June 06, 2020, 08:26:57 PM by uniquorn »

uniquorn

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Re: MOSAiC news
« Reply #833 on: June 06, 2020, 08:15:06 PM »
Since the ROV video above is called rov_2.mp4 I tried rov_1, hopefully that is ok.

uniquorn

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Re: MOSAiC news
« Reply #834 on: June 06, 2020, 08:58:08 PM »
This might give us a clue as to when and where it could possibly have rained for 6 days. Perhaps it ties in with a previous rammb ani posted somewhere.
IABP buoy 300434063387850   is a  cryosphere innovation SIMB, today's data shown below.
« Last Edit: June 06, 2020, 09:07:59 PM by uniquorn »

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Re: MOSAiC news English Transcript of Audio logbook
« Reply #835 on: June 06, 2020, 09:00:45 PM »
Here is an English language transcript of the Audio logbook podcast (otherwise only in German) that was made by the expedition leader Torsten Kanzow during the journey from the MOSAiC floe to Svalbard. The recording was made on Monday 25. May, but it wasn't published on the MOSAiC website till Friday 29th May and of course it has now been overtaken by events as the Polarstern arrived in Svalbard on Thursday 4th June. What it does reveal, very politely and politically correctly phrased, is that there appears to have been quite a lot of friction between the shore base and people on the Polarstern about how best to deal both with the disintegrating floe and the consequences of the pandemic.

Mosaic_Audio_logbook16

Commentator: Arctic Drift - the audio logbook.

Torsten Kanzow: in the meantime we know that our female and male colleagues, the scientists belonging to the next leg of the expedition, and of course the crew of the Polarstern who will be on the ship during the next leg, have arrived in Spitzbergen, together with the research vessels Sonne and Merian, and that  they are, in principle, waiting for us. However, there’s not the remotest possibility of  us being able arrive there in the next few days.

Commentator: on the 16 May, after a delay of a week, the Polarstern was finally able to leave the  Mosaic ice floe to complete the handover to the next team in the Norwegian Spitzbergen group of islands. But the journey South has proved to be tough and arduous. The research icebreaker has had to fight its way through thick arctic ice and continues to test the patience and endurance of the crew to the limit. The delayed departure turned out to be rather different from the one that those responsible for it had originally planned. This was the result of drastic changes in the floe, as Torsten Kanzow, who is the leader of the third leg of the expedition, explains.

Torsten Kanzow: we had certainly intended to bring some of the equipment on board to protect it from any possible kind of damage and had made a plan.  Then we were warned that a storm was approaching that was very, very well forecast, so that we were able to make a great effort to get all the planned pieces of equipment on board before it arrived.  That effort succeeded very well. But then as the storm subsided we were able to see that the floe was disintegrating far more extensively  than beforehand.  We had already seen that some areas of the floe had split off from it and collided resulting in ice pressure ridges being formed, but then after the storm had ebbed, and we were able to see what had happened, it was quite clear that we would have to bring a lot more equipment on board to protect it and to make sure it could be used by the participants of the next leg of the expedition. That meant that we had to take two additional days to rescue the tents, such as, for example, those of Balloon town in Ocean City.  We had to witness the fact some areas had now become inaccessible. In the light of this development it was clear that the decision to salvage much of the equipment had been a good one. Especially when we saw that a monitoring station, that had been located in the area of the city, was destroyed by the formation of a pressure ridge the day before its planned salvage.  In addition, a tent that the Sea ice group had used for investigating the underside of the ice with a remote-controlled submarine also fell victim to the ice. Some of the instruments that were anchored in the ice could not be rescued either, simply because they couldn’t be located in the newly formed ice ridges. So that is what happened in the last few days that we spent there. I think that the decision that was made about them was a good one. We were able to salvage much more equipment than the original plan had foreseen. As a result, the prospects for the team of the next leg using this equipment to get off to a flying start are now quite good. 

Commentator: in the weeks beforehand the leads and tears in the central observatory,  were becoming daily more numerous. When Kanzow and his team bid the floe farewell they left behind a completely fissured landscape that didn’t bear comparison with the extensive solid floe  with which they were confronted when they started the third leg of the expedition  at the beginning of March.

Torsten Kanzow: the floe is unrecognizable. The state it was in when we took it over gave the impression that it was large, easily accessible area, on which one could work without any problems. That changed relatively soon, and we were already clearly able to see that the radius of action for our daily work was becoming limited as a result of the ice movements. However, what we saw then was nothing in comparison to what happened at the end of our stay: that was a completely different category of floe disintegration. I think that it has fallen apart in such a way now that you can’t really talk about a MOSAiC floe anymore. It’s just a patchwork carpet of ice that you can’t work on in any meaningful way.

Commentator: even if most of the instrumentation that was deployed on the MOSAiC floe could be salvaged and brought on board, the researchers still had to leave some measuring devices behind that may be of use to the next leg’s team.

Torsten Kanzow: for sure, some instruments were left behind.  Ones that measure the drift, the dispersion of the ice by the winds and currents. We also left equipment behind that was embedded in the floe itself and measures the internal temperature of the ice as well some that monitors ocean water parameters.  Some of this equipment was left behind, in part, because it would have been impractical to salvage it.  In particular, salvaging some of the instrumentation for oceanographic monitoring out of two metre thick ice would have been very, very challenging and labour intensive and could only have been carried out by a few appropriately qualified people, so that in the end we weren’t able to salvage everything that would have liked to. But naturally, the measurements that these instruments will make, if they survive, will be very valuable. That’s because the continuity of the data they produce will be maintained. Time series will now continue to be recorded during the transition to spring and summer that we are currently so strongly experiencing, with temperatures in the meantime now around freezing point.  We will be able to continue with these measurements during this important phase until our colleagues are on site and can resume the recordings in the snow and ice.

Commentator: After being in action for 79 days, the protracted return journey has given the leader of the third leg a little time to reflect not only about the preliminary scientific findings, but also about personal experiences and highlights during the last three intensive months.

Torsten Kanzow: naturally, there were some things that were dramatic. It was very often, let me put it this way, the dynamic power that the ice embodied during this period of the year that we,  or at least I personally, hadn’t quite expected.  When one discussed this with colleagues there was the assumption that, during this part of the year, we would be able to work on ice that would be solid and quiescent. However, that was far from being the case.  I think that that, in itself, is a very interesting finding. We could observe some big changes just because we were there for such a long time. For instance, the change from the record lowest temperature on the ice that was measured  during the expedition. This  was, if I remember rightly, minus 42. And now, towards the end of the leg, we are experiencing temperatures around zero. This range of conditions and the change in the ice and snow itself that was already a highlight. We also saw big changes in the Ocean: we saw that the extent of the water layer that formed immediately under the ice became extremely deep during our leg. The values we measured were very large and it will be very interesting to analyse them further, especially in conjunction  with other large changes that we observed in the ice and the atmosphere.

Torsten Kanzow: what personal impressions have I taken away? I think that this journey was accompanied by a lot of high and low points, both with respect to living together with the team and also with how the world outside the ship was viewed, that we had to and did    live through. One thing that, let’s say, perhaps demanded the most from me and that I perceived as a big challenge is communication. Communication about the ship and about the situation that we were experiencing and the different perspectives about it that people had who were faced with the challenge of performing their own scientific work under extreme conditions, but who were then faced with another set of conditions and uncertainties from outside the expedition that had nothing to do with their work.  And then there was communication between the ship and the scientific and logistic groups that were involved with MOSAiC. That was also an enormous challenge: to describe our observations and the conditions in which we found ourselves in such a way as to make it understandable. The way that actually happened - I’ve never lived through anything like that before.   There’s a big range of impressions about this and its not just black and white.   There were many positive moments, for example, because we were able to see that despite having lots of different viewpoints, we were always able to motivate ourselves to work together well and we all pulled together. Naturally it was greatly satisfying to see that measurements continued to be made successfully, despite  the very rapidly changing external factors (Ed.- the pandemic) and the consequent uncertainties in the planning that arose with respect to the changeover between the legs and despite all the dynamic changes that we were experiencing on the ice. That we were able to remain  productive and to continue deal with each other in a friendly manner under this pressure was an enormous achievement. 

Commentator: The demoralizingly long return journey of the Polarstern may be testing the patience of a lot the crew. However, both the scientists and the crew can are quite clear about what their next big goal is. 

Torsten Kanzow: Our mission now is to reach Spitsbergen as soon as possible.  We should have arrived there 2 days ago,  if the original plan had been adhered to or if our ideas had been listened to.  In the meantime, we know that our female and male colleagues from the next leg and of course the exchange crew of the Polarstern have already arrived  in Spitsbergen (Ed. this podcast was recorded on Monday 25. May and broadcast Friday 29. May) on the research vessels Merian and Sonne and in principle they are waiting for us. But there’s not the remotest possibility of us arriving in the next few days. We have now covered 40 miles from the floe in a southerly direction. That’s during the 9 days we have been travelling so far and we are still about 100 or 120 miles away from the border between sea ice and open water. After we have reached open water then perhaps it will take another day for us to reach Spitsbergen.  The effort of travelling through the ice is extremely demanding: of course we spend a lot of time looking at satellite observations and how the ice to the south of us is changing, but, as of now, it doesn’t look as if it’s going to change much in the next few days.  That means progress is going to continue to be very slow and looked at soberly it means that we are going to have to continue to be very patient and not harbour the illusion that we are going to arrive in Spitsbergen in a day or two. (Ed. it took them another 10 days!)

Commentator: When they have arrived in Spitsbergen, Kanzow will handover command to the well-known  AWI (Ed. Alfred Wegener Institute) Project leader Markus Rex, who was already in command on the Polarstern during the first leg of the expedition at the end of September. By drawing on the experience of the team from the current leg, he (Rex) will be able to prepare himself in advance for the new situation in the field

Torsten Kanzow: of course I’m already in communication with the leader of the next leg, with Markus Rex, and he can see, just as I can, how slow our journey to Spitsbergen is. Naturally he always got updates from us about how dynamic the ice was and how difficult the situation there was and is.  I believe the best advice I can give him is that one should always have plans, but then be prepared to alter them and that you have to expect changes in the conditions on the ice  to occur and to have to cope with them.  It’s also important to know that the situation on the ice must be well described and well communicated to the women and men scientists who are still working in their labs and that you have to trust the people who are on the ship to make the right decisions, because only they can judge what the conditions on the ice are really like. I believe that that’s exactly what they are going to do on the next leg, so they probably don’t need any tips from me. But what I do believe is really needed is to be a bit relaxed and to trust each other, if you are going to get good work done. That may be a commonplace that holds anywhere in the world, but it particularly applies to those working on the floe. The next leg faces a big, a very big, challenge, because they will have to review the situation and will have to discussed how work can be continued during the coming months. Should the original floe be returned to? Are good conditions for working expected there? How will it be possible to achieve that in an ice-system that is probably going to remain very dynamic as the summer melt sets in, where the question of how power can be supplied to the equipment is very different from what it was in the beginning and where fog will have to be contended with – in other words poor visibility. How is it possible to create a good workplace environment for everyone on board, especially the women and men scientists? These are issues that we already had to struggle with during our leg. These are quite difficult questions and the next team will have to confront them too, but of course my female and male colleagues know that as well.

Commentator: there is still a long journey in front of Torsten Kanzow and his team before they can leave the ice behind them and return, hopefully safe and sound, to their homes. But the Oceanographer doesn’t have to think long about the answering the question about what he will enjoying doing most when he gets there.

Torsten Kanzow: of course, what I’ll be happiest about when I return is to see my family, my wife and my two children, and to have them in my arms. That‘s the most wonderful thing one can imagine.

uniquorn

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Re: MOSAiC news
« Reply #836 on: June 07, 2020, 09:14:18 PM »
Thanks for the translation.
Following up on glittering clouds below the ice here is a 3d interpretation of the colour depth image.(inverted on the right)

blumenkraft

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Re: MOSAiC news
« Reply #837 on: June 08, 2020, 04:14:28 PM »
MOSAiC Expedition Overview

“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #838 on: June 08, 2020, 09:37:21 PM »
PS apparently heading back to the original mosaic floe.
This is an example of what they are going back to (from https://twitter.com/seaice_de)

Also from https://twitter.com/JulienneStroeve/status/1269932345014079491
Quote
julienne stroeve
@JulienneStroeve
We have a new method for mapping melt ponds from optical imagery. Full time-series from 1999 to present is forthcoming https://authors.elsevier.com/c/1bBFM7qzSr6qj#.Xt4LtnuyBrg.twitter
« Last Edit: June 08, 2020, 09:53:39 PM by uniquorn »

FishOutofWater

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Re: MOSAiC news
« Reply #839 on: June 08, 2020, 09:53:14 PM »
That photo is an amazing example of thin plate tectonics. I hope they they have a record of water mass changes under the ice associated with the storm that caused the floe to crack up. I wish them luck working in that environment.

uniquorn

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Re: MOSAiC news
« Reply #840 on: June 09, 2020, 01:55:09 PM »
thin plate tectonics
Perhaps proximity to ridging with a deep keel makes it worse for thinner ice.

PS is back in the ice. 10:00 location overlaid onto buoy movement from May20

uniquorn

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Re: MOSAiC news
« Reply #841 on: June 10, 2020, 03:22:05 PM »
PS location at 1200 UTC and probably destination, buoy26569

blumenkraft

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Re: MOSAiC news
« Reply #842 on: June 10, 2020, 07:19:49 PM »
R11 keeps being erratic. But since R12 changed a little too, i thought it is GIFworthy.
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #843 on: June 10, 2020, 08:10:56 PM »
Thanks bl. Perhaps someone could keep an eye on snowbuoys S96(near R11) and S94 (near R12) also, though we might need Niall to interpret S94.

Overview of Mosaic ships
Distance from central observatory.
« Last Edit: June 10, 2020, 08:32:13 PM by uniquorn »

uniquorn

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Re: MOSAiC news
« Reply #844 on: June 10, 2020, 08:30:49 PM »
Nice image of ice at the ice edge today on fomo
« Last Edit: June 11, 2020, 02:04:38 PM by uniquorn »

blumenkraft

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Re: MOSAiC news
« Reply #845 on: June 10, 2020, 08:38:20 PM »
Perhaps someone could keep an eye on snowbuoys S96(near R11) and S94

Count me in!  ;)
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain

uniquorn

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Re: MOSAiC news
« Reply #846 on: June 10, 2020, 10:21:00 PM »
bow radar is back on. click to play.
Floes becoming more defined.

uniquorn

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Re: MOSAiC news
« Reply #847 on: June 11, 2020, 02:13:32 PM »
Reworked animation of the Pbuoy swarm since oct4. Note the deployment track on Dec13. There is also straight line during march and april that needs investigating. It might be the buoy with the faulty gps though it looks too straight for that. Some buoys have been left behind but the Pbuoys have a good survival rate. Ani is a bit bigger at 4MB
I wonder why they didn't deploy more to the north (well, left)
edit: the helicopter deployment has squashed the pallette, need to work on that: fixed
Bright drift tracks around the time of the ~may15 storm noted in the podcast upthread
« Last Edit: June 11, 2020, 02:20:52 PM by uniquorn »

Glen Koehler

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Re: MOSAiC news
« Reply #848 on: June 11, 2020, 03:49:24 PM »
   Thanks uniquorn.  The May 15 Fram export event shows as a very brief pulse, but what was going on from mid-March though ca. April 5?  The buoys were moving fast for several weeks.  I don't remember any dramatic weather at that time.

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Re: MOSAiC news
« Reply #849 on: June 11, 2020, 05:25:11 PM »
Breaking through the Arctic pack-ice belt: a difficult and, even in the present day, unpredictable undertaking

Quote
On 16 May, RV Polarstern left the MOSAiC floe, which an international team of experts has been researching since last October, to pick up the crew for the next leg of the expedition off the coast of Svalbard. To reach her destination, RV Polarstern had to pass through a belt of multiyear pack ice in Fram Strait. The ship is now making her way back to the MOSAiC floe. Just how long this will take depends on more than just how thick the ice is. In the following interview with meereisportal.de, Captain Thomas Wunderlich and Cargo Officer Felix Kentges talk about their experiences with icebreaking and explain why open leads in the ice, as well as the snow on the floes, are important aspects.

Link >> https://www.meereisportal.de/en/archive/2020-kurzmeldungen-gesamttexte/breaking-through-the-arctic-pack-ice-belt-a-difficult-and-even-in-the-present-day-unpredictable-undertaking/
“I’m an introvert. I’m just different that’s all. I’m so sorry. I don’t have a gun. I don’t do that stuff... All I was trying to do was to become better. I’ll do it... You all are phenomenal. You are beautiful. And I love you. Try to forgive me. I’m sorry.”

Elijah McClain