Friday, October 30, 2009

Where Is Row M In The Rose Garden

ship and simulations

here now why we go to the description there and what we do there. I take just 1-1 since the press release as it is just as common:
"[..] end of November will go then in Chile, mainly marine geologist on board for the first time to traverse the entire star with polar polar South Pacific The 43 scientists. and technicians around cruise leader Dr. Rainer Gersonde of the Alfred Wegener Institute will take approximately 40 positions geological samples in order from the to collect deposits of deep-sea data on climate history of the past million years. The analysis made in the context of national and international projects, "

the entire text with pictures can be found at the AWI website

From I have also stolen the picture with the current position of the North Star. As you can see they already on the way to Punta Arenas. Furthermore, there are still a virtual tour and technical data .

Yesterday was the Antarctic environment seminar that everyone of a German institution belongs and Antarctica moves must participate. Article 1 of the Antarctic Treaty states that the only peaceful and Antaktis scientific purposes may be used. So now I have a certificate and may not official south of 60 ° S. I have the opportunity then also be used and identified with two Mädls hiking in New Zealand.

But again to my work. Yes I finally calculation results, although not yet of semi-lagrange, all part of the actual. But I think now knowing how to do it and wants the program before the end schifferlfahren. But here are a nice plot:






Then we see a cross section of an artificial gray hills covered with ice. This is an artificial Ice sheet with which to compare models. I've used to have fall, where one can still imagine how the ice would have to flow around a simplified. Fill in the center and outside snow will melt around it instead. The simulation begins with bare rock on because then only in the middle of snow falls. In 200 years 100 meters. 200 years of the time step with the model for this simulation works. Accumulates enough ice time then it starts to flow, like a pizza dough. It cuts the dough dumplings on the table, and slowly he begins to diligence and is flatter. Similarly behaves the ice flowing well, albeit very slowly. What you see here are so a few snowflakes falling after 4000 years on the surface. This surface is the red line. Then seiht how this marked snowflake is transported through the ice. You can see the the oldest ice of nearby soil and that the oldest ice in the middle, at the highest point of the ice, the so-called "cathedral". There would also drill to an ice core because it is so interested in as the old ice and a continuous time series. The lines already aiming at 1000 meters apart which makes it difficult to date the finding and therefore no longer just the ice that has fallen at this point on the surface.

Dans whole works for Greenland and Antarctica where I still single pair will make experiments and even talk with a glaciologist it. With semi-Lagrangian, it is then, hopefully soon be possible not only still pictures but make the entire stratification and the ice-age, etc. to behold. But the good times something works and something interesting happens.

Saturday, October 3, 2009

How Long Does It Take To Make Ice?

future

country under in Bremerhaven. Finally, the signs have come true: "In storm surge flooding." It sounds to me like "When the avalanche avalanche danger", but what I know of so plain I have no idea. The highest mountain in Cuxland is the 74-meter silver mine. Well gold has served well's net, there must be probably be so high for the 100 meters. The attentive reader can read between the lines of a slight annoyance if the North German flatness. Which is certainly present, so I've already more plans. But first to the near future. On 23 November, I fly to Punta Arenas and then on the Polarstern have a lab ready a. Then on 27 begin the journey towards New Zealand in a zigzag, which also brings us up to 70 ° S!




It then becomes the notorious Roaring Forties, the wind between 40 and 50 ° S, which are then replaced by the Furious Fifties to schleißlich again by the Shrieking Sixties outdo.

More on the object of the trip so then next time.
We come then at 1.27 in Wellington, New Zealand. Where will I stay then until 9:02, you have to use so if there is ever random.

Then I got on here to stay still for 2 weeks, and then write in Graz and ready to go snowboarding. Not imagine the agony the whole time I was here and I would listen to the stories of the winter daham! That's why I've already found a prospect project in Graz: http://www.alpchange.at/ . Yes, that sounds like the perfect job to model glaciers and measure from time to time on the mountain.
Or the second option which I here The AWI was offered, PhD thesis in Munich in cooperation with the AWI and also Field Work! Yes it looks good, the future. In the near future, I get that, either visit ...

Saturday, September 12, 2009

Low Profile Box Spring Dust Ruffle

Iceland and Antarctica

Well that's a headline! Who do you have to write so much, it's not the easiest to write. What was I not restore all things out for great stories. Iceland for three weeks with all the trimmings! There is one email I received during an exciting bus ride to my phone if I join the ANT-XXVI / 2.
Thanks to modern technology Iceland so it was possible that I got in the middle of the remoteness of the Icelandic highlands of this mail. Iceland provided a Handyabdeckeung, even in places where you need it or not very much either. The Icelandic highlands is legendary. Stories of outlaws who were exiled there mixed with stories of tragedies and modern control. Iceland is practically the only offshore. In Germany, is nothing, garnix. What if I did not answer it can?
Then someone else would be traveling in the course of the ANT-XXVI / 2 of Polarstern expedition from Punta Arenas in Chile to Wellington in New Zealand. Endurance and annoying to pay off, according to cancel dozens I received a confirmation. One is enough, yes. It is not easy to get to the North Star. Many want to, but even though the Ship over 110 meters long drive only about 45 people with the AWI, the rest is part of the crew. Of the 45, some of Hawaii, Korea, Chile, New Zealand and elsewhere. So there are few places for PhD students or graduates that are sought after by its very nature. So I was lucky enough that someone can not ride because of the great thorough German bureaucracy. My job will be so with the equipment, the sediment cores from the seabed drag on deck to work.


Wolfram Distance: approx 8000nm
Weather
Harsh weather conditions are expected. Sea-ice may be present in the Ross Sea. Please be prepared against sea thickness. ha! Looking forward. Hopefully I can take the waves again as then before the Hakon Mosby Spitsbergen.

PS: The little problems are not solved! But tomorrow could be an important day ...

Photos of Iceland will soon be there.


Saturday, June 27, 2009

Pokemon Purple Ti-84 Plus

hiccups

program and work-dipom is basically no different than running little problems to solve. Plays little more time. This month was marked by two larger ones. The first problem was to make it very difficult to locate. Fortunately
now the whole code in a version control system called Subversion. Many people use open source Subversion Kham

so that multiple people can work and do not come in your way. Very practical.
The second problem which I have now is not technical but mathematical programming. This point is probably in every major work ahead of time? Was all for nothing I have done? No! At least that is my opinion.
heard It is so simple. I must find out where a particle was previously a time-step. I know where it is now, and I know the 3D velocity field. So it's all there, right? But just the beginning of the story. , it happens no chemical transformation and no diffusion. But that is precisely the problem.
You think you could just carry the particles that fall on the ice. Just at the temperature formula which omitted? But no, there is no diffusion, there are sharp transitions from one property to another. For example, if two glaciers flow together, that's an ice and thus the particle is 2000 years old and the other 40000th At one point I then got a transfer of 2,000 to 4,000 Exactly at the interface I have on a jump. This leads to some problems. At the temperature there is something not because it is no matter how old the ice, the temperature there has not cracked. To detect the gene-history of the particles, such jumps should be possible. The origin and the time where it has landed on the ice must be maintained. It is the simplest formula, like this: The change is 0! The problem was solved until 2002 was the first time for ice sheet. The idea was to make it so so in 2002. See the picture below. It basically
two ways how to implement a model. It shares its entire area so as to Greenland in a grid, say 20x20 km and 100 in the high layers. In the Euler method one has a fixed grid and looking at what happened. In the Lagrange model you look at a particle and it follows all the time. In this case, as it were, then bends the bars. Both options have advantages and disadvantages. My
ice sheet has a fixed grid. So now it comes: there is the semi-Lagrangian method. This is a mixture of both. One uses a fixed grid and tracked in each time step, only the particle that hits a lattice point as the endpoint. Because change is not with me so the property should it enough if I know where the particles come and how the property was there the previous time step.
The difficulty is now to know where it was PRIOR particles. In a 3D grid with a different velocity at every point within a grid cell! And an ever-changing speed. Yes when that does not work then the whole method does not, or will the inaccurate, so inaccurate and everything becomes less accurate with each time step. If we accurately compute time just 400,000 years then add up the deviations.
is unfortunately nothing in the article about accurate extreeeem only a simple formula: the place where it was before the same is the place where it's gone now minus the back down ....
So I searched more articles the semi-lagrange use and after a day I also found some where it is described in more detail, with all the numerical odds and ends you have to consider too. So I'm confident it will work and I will meet again on Monday with my supervisor.

We think that is more complex and the more complicated it is. Make a simple task at first is evolving into an interesting and complex problem. We lost very quickly to details. To every detail, there are dozens of articles and sometimes you just think everything is too complicated and it is no longer the easiest things safe. So it was good that I've written here once so I know what itself the original objective was.

but then starts to really, because then you can make virtual ice cores and compare them with real! About isotopes and for which one uses it I'll write something later.

Well, now, a slightly longer post but then I want if I am then in a week in Graz not always explain what I make. I'm looking forward to daham, so until then.

PS In August I'll go to Iceland! The hike, etc., not from the AWI.


Wednesday, June 10, 2009

Help Installing Mount And Blade Vista From Disk

diseases

your machine manufacturer knows the safe at the very beginning where you get used to the 40 hour week, and the whole day sitting in front of the PC and records, and zooms out and new items will zoom, zoom, and again a Stichleim there and then.
Then you sit at home watching television and in a careless moment, one will be even closer Zooming when something interesting in the picture is ... Yes
as modelers and programmers that are so similar, one wonders sometimes briefly about the brilliant implementation of the graphics at the waves in the lake. Or amused at
Surge
the sauce from the potatoes.
But we're up again as it should, the virtual glacier flows nicely in front of him and I can simulate thousands of funny.
But the real work is thus obviously a little behind schedule, some things are working now and I am confident that I have until July first results.
On Friday I go to visit the world-famous or not Polarstern
! The output label of the AWI. I've already tried some on a long ride exit so far without success, but I'm working on it ...


Saturday, May 23, 2009

Why Can't I Have A Pet Platypus?

Norge

am now yes again some time back from Norway. Fjord, snow, mountains, mountains, meet old friends, must be a holiday. Bergen has the dubious reputation of the city so in Europe with the most rainy days to be. Not true. According to my extrapolation of 5 days, it is the sunniest city in Europe. So yes, some argue Klimaskepitker. Perfect conditions for my wanderlust

to breastfeed. So it was a mountain that I climbed twice on the same day, as Jule just behind it lives on a lake. Should live one, 15min to the center but in the middle of the wilderness.
In Oslo, I visited with Peter, who is doing a semester abroad in Bergen, two friends of Spitsbergen. So I could study their behavior in their natural habitat. They're two marked the City Girls is thought not necessarily in Spitsbergen. On the first evening we were grateful to a party-wise in the 12th floor overlooking Oslo towed. The train ride alone was worth the trip already. Although only 300 km between Oslo and Bergen are driving man 7 hours over the mountains and the highest railway station in northern Europe. The second weekend we were headed for Stavanger Pulpit Rock said. It immediately in the top 3 on the list of the most beautiful places I have visited make it. A stone's 600 projects over the fjord with spectacular views of the surrounding mountains. Were some very nice days and also important to complete with Spitsbergen. This can be in Bremerhaven for the time and live very well, am just from the beach in the middle of the city back. Including holiday feeling. Yesterday I had my first visitor and he has also fallen quite well. Visitors who want to wade around in the Wadden Sea, however, may have no fear of worms ....