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In stead of going through Arctic round trips and chance calculations, you can also turn it around and ask (I'd like an answer to that question too)
"how old is the oldest piece of floating ice in the arctic".
If the object just happened to be next to that piece of ice we have the answer.
Research for a novel
Here's a question I received some time ago from a reader of this blog who is in the process of writing a novel. I thought it'd be a nice way to pass our time while we wait for the latest PIOMAS update. My answer is basically the either/or image on the right, but maybe you come up with other ide...
Thanks for sharing this sad news. His lectures did actually influence my thinking, "the greatest shortcomming" is on my mind almost daily when blogging
In memoriam: Albert A. Bartlett
This is only indirectly linked to Arctic sea ice, and something I found out today, but a little over two months ago emeritus Professor of Physics at the University of Colorado at Boulder, Albert Allen Bartlett, passed away at the age of 90. Bartlett was famous for the following quote: "The gre...
Hi Neilt, I wasn't saying anything about the current solar activity level. I was pointing at 2005-2011 and saying that IF the suns activity was directly influencing polar melt you wouldn't expect lows (records!) during that era:
http://solarscience.msfc.nasa.gov/images/ssn_predict_l.gif
Anyways, I personally think that what we see this year is polar weather, not climate, in al it's bizarre appearances.
(Re read my post, I did say "has been", I meant "was". That's what you get from not being native in English :-) )
PIOMAS October 2013, take two
Let's do this again. I was so busy building a green roof (still not finished), and devastated every evening afterwards, that I didn't get around to updating the previous PIOMAS October 2013 blog post. Here's take two (after that you can take five) with the updated Arctic sea ice volume graph as ...
Aren't the "the suns activity is causing the sudden melt" people shooting themselves in the foot here?
Because if it's the suns activity that is causing the melt, than an inactive sun must lead to more ice, right? But the sun has been at a an extreme long and deep minimum between 2005 and 2011. So for sure one wouldn't expect the 7 lowest Sea Ice Extents in the past 30+ years in exactly this period.
PIOMAS October 2013, take two
Let's do this again. I was so busy building a green roof (still not finished), and devastated every evening afterwards, that I didn't get around to updating the previous PIOMAS October 2013 blog post. Here's take two (after that you can take five) with the updated Arctic sea ice volume graph as ...
Does anybody know what's happening over at NSIDC Sea ice Extent, there seems to be a thawing trend..... How unusual is that in November?
PIOMAS October 2013, take two
Let's do this again. I was so busy building a green roof (still not finished), and devastated every evening afterwards, that I didn't get around to updating the previous PIOMAS October 2013 blog post. Here's take two (after that you can take five) with the updated Arctic sea ice volume graph as ...
A little of topic, but I'd like to make you aware of an iPad app called MeteoEarth HD (0,99€ this weekend, I have no financial or other relationship with them). This app shows you amongst others winds/pressure systems in real time projected on a globe, polar projection is very well. I had this "seeing Google Earth for the first time" experience.
This is the first time I've seen the cold air actually flow of of Greenland. The Philippine Typhoon was also spectacular. I think it'll help me better understand next years ice movements on the Pole. Highly recommended.
PIOMAS October 2013
It took a bit longer because of the shutdown, but here is the updated Arctic sea ice volume graph as calculated by the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) at the Polar Science Center: Mind you, I expect another update with October date soon as well. Here's Wipneus' ...
Meanwhile in The Netherlands:
De Graaf (PVV): "De grootste wetenschappelijke fraude ooit is de klimaatfraude"
or in English:
De Graaf (of the one member, 2 million sheeple party PVV) : "The greatest scientific fraud ever is climategate"
I'll stick with jetstream research, just to be sure.
Arctic sea ice and jet stream changes
It's the most interesting and actual of all potential risks tied to Arctic sea ice loss and could turn out to be one of the surest signs of changing weather patterns. Which explains the growth in interest and research. One of the latest scientific papers on this subject, Influence of Arctic sea...
Interesting stuff! As an amateur weather experiencer :-) I was amazed that the almost one month of north/northeasterly wind that we experienced this winter got so little attention here in Holland (even though it caused a major lengthening of the winter).
I've been thinking that it would be nice if there was some measure that shows the cumulative momentum of the air in the Northern Hemisphere Jetstream (all the air between 30 and 60 degrees North). This measure would be high if it moves East-West, as it normally does, and low if it strongly meanders North-South/South-North, as during blockages.
I can't ration if this value would be static (a blockage on one side of the earth must lead to a speedup elsewhere) or if the circulation around the earth can actually change/diminish/stop.
Arctic sea ice and jet stream changes
It's the most interesting and actual of all potential risks tied to Arctic sea ice loss and could turn out to be one of the surest signs of changing weather patterns. Which explains the growth in interest and research. One of the latest scientific papers on this subject, Influence of Arctic sea...
Does anybody know if there is somethng like a "cummalative rotation energy of the atmosphere". I'm asking because I have a feeling that the atmosphere is not rotating as fast as it used to. Here in Holland we seem to have less SW wind and more N or S winds. If this were a global fenomena the rotation energy of the atmosphere would be lower. This would be a proxy for the condition (heat content) of the poles : warmer poles = smaller delta T with tropics = less energy to drive the jetstream.
On a sidetrack : Neven, how is your house getting along?
Pinpointing the minimum
UPDATE September 16th: Given another uptick and the current weather forecast, I'm ready to call the minimum for IJIS SIE V1 on September 12th at 5,000,313 km2. Apparently the high was too big and the pressure gradient too low to prolong things (see below). --- This blog post should perhaps ha...
@Nirmalkumar : your CAPS-lock was stuck, and I doubt if the electric car will save the world, anyhow:
Toyota is clearly on the way of further electrifying the world car fleet, one mile at a time.
"Toyota has stepped up its research, development and production capacity of both NiMH and Li-ion batteries"
That is interesting, because in 2015 the patent rights owned by Chevron on NiMh-plugin batteries are finally no longer valid. Toyota can than finally deliver every Prius with a Plug, as they had always planned to do.
If Toyota implements induction charging very well it may set the standard for his in the industry, and maybe we will see traffic light fast charging introduced.
Toyota broadly outlines next-generation Prius; developing wireless inductive charging for the plug-in model; bullish on hydrogen
Toyota’s next-generation Prius will deliver significantly improved fuel economy in a more compact package that is lighter in weight and lower in cost, according to Toyota Motor Corporation (TMC) Managing Officer Satoshi Ogiso. Ogiso—who earlier in his career had been the chief engineer for the ...
Can't help but find the Greenland ice movements during the last week nothing less than spectaculair: http://youtu.be/PZDSMe1zHbA
Hole
I just saw that Anthony Watts couldn't restrain himself and has posted one more instalment in his series of predictions for the Arctic that have supposedly failed to come about. I know there's no use in telling him that the IPCC projects the Arctic to become ice-free somehwere between 2080 and...
Larsboelen is now following Neven
Aug 12, 2013
Van harte Neven, meer dan verdiend!
Arctic ice loss and armchair scientists
John Abraham, known as the dragon that slew the Viscount and an excellent climate science communicator, approached me a while ago with a couple of questions concerning the blog and Arctic sea ice in general. He turned it into this ego-inflating article on the Guardian website: Global warming, A...
Does anybody know if Newtons Laws of Motion also apply to Ice Sheets?
If the whole Ice Sheet gains momentum, top to bottom, wow, what is going to bring that to a halt?
Greenland Ice Sheet: "Starting to Slip"
Peter Sinclair from the ClimateCrocks blog has produced a new video for the Yale Forum on Climate Change & the Media with some good speakers:
And another close up of Big Berg 2013, using the AMSR2 images:
http://youtu.be/rxAwoJTYW64
Ice pack in full
Arctic Sea Ice Blog commenters come up with all kinds of ways to make sense of or visualize what's going on with the ice pack, tweaking satellite data, 'declouding' images or compiling animations. In this blog post I want to show a couple of those efforts. Commenter Danp opened a thread on the A...
P-maker,
I knew immidiatly what you meant, without even opening the link. The feature is clearly visible in the fullres video on Youtube (somehow the video doesn't show full res when linked to in a website, I encourage you to view it there, it's quiet beautifull). I've been tracking it for a couple of days now and wondered why it didn't get any attention. It seems to be moving only east at the moment, little southern movement.
Ice pack in full
Arctic Sea Ice Blog commenters come up with all kinds of ways to make sense of or visualize what's going on with the ice pack, tweaking satellite data, 'declouding' images or compiling animations. In this blog post I want to show a couple of those efforts. Commenter Danp opened a thread on the A...
Anybody care to share his/her thoughts on what happened in Greenland today? It's been WAY too cold for weeks, and today BOOM:
http://nsidc.org/greenland-today/
ASI 2013 update 4: bye bye, Beaufort
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Central to these updates are the daily Cryosphere Today sea ice area (SIA) and IJIS sea ice extent (SIE) numbers, which I compare to data from the 2005-2012 period (NSIDC has ...
Downpuppy : ah, that's just me then :-)
Thanks for the link
Problematic predictions 2
This comment by long-time commenter Rob Dekker was so good and elegant that I decided to squeeze it in as a follow-up guest blog to the first Problematic predictions post. ----- In Bill's excellent overview of correlations here, he used 'area' earlier as a predictor for 'area' later (area->are...
I agree with David, is measuring a sea ice extend of 1-2 meter thick ice the same as measuring the extent of floating wett snowballs. I think we may have been fooled by the unusually cold (and cloudy?) June and may be surprised by "what comes next".
On a side track, is it is just me or is the hurricane season refusing to start this year. Might this be related to the slowing of the jet stream that causes all these wierd temperature records in Californa, Alaska and northern Canada?
Problematic predictions 2
This comment by long-time commenter Rob Dekker was so good and elegant that I decided to squeeze it in as a follow-up guest blog to the first Problematic predictions post. ----- In Bill's excellent overview of correlations here, he used 'area' earlier as a predictor for 'area' later (area->are...
Christoffer,
WeatherPro currently has Kugluktuk at 32C with a heat warning, smashing the old record by 7.7 degrees. MSM isn't picking it up, they seem more interested in California having a hot weekend.
I think this is major (post) tipping point stuff!
ASI 2013 update 3: the Arctic goes POP
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Central to these updates are the daily Cryosphere Today sea ice area (SIA) and IJIS sea ice extent (SIE) numbers, which I compare to data from the 2005-2012 period (NSIDC has ...
Are there any signs of these kind of devices using liquid alcohol (or even Petrol) as source of hydrogen, in stead of using Hydrogen Gas? That would make a device like this (@20 kW) the ultimate "range extender" in otherwise battery powered cars.
ACAL Energy FlowCath fuel cell reaches 10,000 hours runtime on automotive durability test; 2x US DOE 2017 target
FlowCath PEM fuel cell. Click to enlarge. UK-based ACAL Energy Ltd announced that its FlowCath platinum-free liquid cathode system has enabled a PEM hydrogen fuel cell to reach 10,000 hours’ runtime on a third-party automotive industry durability test without any significant signs of degrad...
I wonder what the car would be like if they dropped the 4.6L/453kW/V8 fossilfuelburner with that rediculous exhaust configuration (breathing hight exhaust, I hope it fails roadsafety tests).
If all that dino-stuf gets dumped there is still 200+kW of electrical power + a truckload of space for batteries. That would make a pretty nifty sportscar.
Porsche introduces 918 Spyder plug-in hybrid sports car
The 918 Spyder. Click to enlarge. Porsche has introduced the 918 Spyder plug-in hybrid sports car, the first of six or more plug-in hybrids coming from the Volkswagen Group. (Earlier post.) Porsche had unveiled the concept version of the 918 Spyder Plug-in Hybrid at the Geneva Motor Show in...
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