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Well, I should say that I thought it was possible, but it seemed to be a very difficult undertaking!
Cyclone warning!
I have postponed this post until I was sure that what follows is going to happen. Remember the term 'flash melting'? That's when from one day to the next large swathes of ice disappear on the University of Bremen sea ice concentration maps. We witnessed one such instance last year when a relativ...
Chris,
Thanks for the reply. I knew that PIOMAS did assimilate data, but I did not think it was possible to do it on a "real-time" basis. I thought it was more of a long-term incorporation of weather data. Their work is impressive indeed!
Cyclone warning!
I have postponed this post until I was sure that what follows is going to happen. Remember the term 'flash melting'? That's when from one day to the next large swathes of ice disappear on the University of Bremen sea ice concentration maps. We witnessed one such instance last year when a relativ...
With PIOMAS being a model, it would not seem that the upcoming August 2012 data can integrate events such as this freak cyclone that is ripping apart the ice. If this weather event does what people are predicting, then the PIOMAS value for volume at the end of the month will be high. I understand that they run an ensemble of simulations, but as the ice gets thinner with time, there are going to be events that the model does not take into account for the near-term. Thoughts?
Cyclone warning!
I have postponed this post until I was sure that what follows is going to happen. Remember the term 'flash melting'? That's when from one day to the next large swathes of ice disappear on the University of Bremen sea ice concentration maps. We witnessed one such instance last year when a relativ...
They seem to project that a lot of high-latitude ice on the Russian side will melt completely in August. How did they do in 2011?
ASI 2012 update 8: it shouldn't, but it does
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 IJIS sea ice extent (SIE) and Cryosphere Today sea ice area (SIA) numbers, which I compare to data from the 2005-2011 period (NSIDC ha...
Hi AmbiValent,
The 4.3 +/- 0.3 is an estimation of Sept. extent, not volume.
ASI 2012 update 8: it shouldn't, but it does
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 IJIS sea ice extent (SIE) and Cryosphere Today sea ice area (SIA) numbers, which I compare to data from the 2005-2011 period (NSIDC ha...
There are 17 days left until August 1st (day 212) and 1.1 million km^2 to get to 4 million km^2 by that date. That's 64k a day. At this rate, it's going to happen but there may be a slowdown at some point...
ASI 2012 update 7: steady as she goes
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 IJIS sea ice extent (SIE) and Cryosphere Today sea ice area (SIA) numbers, which I compare to data from the 2005-2011 period (NSIDC ha...
Have you noticed the ARC drift maps for the next week, Neven? Right out the Fram. Might not cause melting, but that might cause trouble for the pack in the long run this year.
Stronghold
I think we all remember what the conclusion was after the last freezing season (see 2011/2012 Winter analysis): sea ice on the Atlantic/Siberian side of the Arctic looks vulnerable, sea ice on the Pacific/North American side should be thicker. So far there has been a very clear confirmation of ...
CT out, down ~100k to 6.21 km^2!
ASI 2012 update 6: piggy bank
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 IJIS sea ice extent (SIE) and Cryosphere Today sea ice area (SIA) numbers, which I compare to data from the 2005-2011 period (NSIDC ha...
From the maps and graphs, it seems that most of the lag for this year comes from the slow melt of Hudson Bay. Any heatwaves on the horizon in that area?
ASI 2012 update 3: international daily data day
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 IJIS sea ice extent (SIE) and Cryosphere Today sea ice area (SIA) numbers, which I compare to data from the 2005-2011 period (NSIDC has...
Mauna Loa CO2 now above 397 ppm for two weeks in a row!
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
It has updated to May 14th now.
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
Hooray! Cryosphere Today is back online!
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
No problem, Neven
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
I can't get May 14th area, just May 14th extent on the main page. I tried refreshing.
http://www.ijis.iarc.uaf.edu/seaice/extent/AMSRE_Sea_Ice_Area.png
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
Never mind, I found it. I see that it (IJIS area graph) is still at last October. Though, Neven, if CT comes back online sometime, you can start doing the CAPIE calculations again. :-)
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
Is the IJIS area graph back online too? What was the URL?
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
Here's some data--weekly CO2 at a new record of 397.17 ppm. Up over 4 ppm from this week last year! Of course, we are close to the max for this cycle...
ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_weekly_mlo.txt
ASI 2012 update 2: no daily data
During the melting season I'm writing (bi-)weekly updates on the current situation with regards to Arctic sea ice (ASI). Because of the demise of AMSR-E the IJIS sea ice extent (SIE) numbers are no longer central to these updates. Instead I now use Cryosphere Today sea ice area (SIA) numbers and...
PIOMAS is updated!
http://psc.apl.washington.edu/wordpress/wp-content/uploads/schweiger/ice_volume/
December 2011 Open Thread
We sleepily await the newest updates from NSIDC and PIOMAS. In the meantime over at the SciencePoles website from the International Polar Foundation there's a very interesting interview with professor Martin Jakobsson: Investigating Arctic Paleoclimates.
PIOMAS has updated for October 2011! The Oct. 31st value for 2011 is 6.85 km^3 (vs. 7.56 km^3 for 2010).
http://psc.apl.washington.edu/wordpress/research/projects/arctic-sea-ice-volume-anomaly/data/
October 2011 Open Thread
Unlike last year the Arctic Sea Ice blog isn't going into full hibernation. We are sleeping with one eye open... There will be a new open thread at the start of every month to discuss the recent going-ons in the Arctic (ice, SSTs, weather, etc) and interesting news pertaining to it. For instan...
Thanks Chris and Pete. It seems Bremen updated early.
Historical Minimum in Sea Ice Extent
The Arctic sea ice extent index calculated by a University of Bremen research team led by Dr. Georg Heygster reached a new historical low point of 4.24 million km2 on September 8. The previous one-day minimum was 4.27 million km2 on September 17, 2007 (Figure 1). The usual melt season is not yet...
Extent for U Bremen had another drop for Sept. 10th. Can anyone take a ruler to the graph to see what the new record is? Thanks.
Historical Minimum in Sea Ice Extent
The Arctic sea ice extent index calculated by a University of Bremen research team led by Dr. Georg Heygster reached a new historical low point of 4.24 million km2 on September 8. The previous one-day minimum was 4.27 million km2 on September 17, 2007 (Figure 1). The usual melt season is not yet...
CT Area now beats 2010...
2010.6959 -1.6625719 3.0774183 minimum
2011.6438 -1.9939168 3.0650997
SIE 2011 update 17: unfulfilled potential
During the melting season I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2005-2010. NSIDC has a good ...
IJIS area just took a big drop and is now close 2007 levels.
http://www.ijis.iarc.uaf.edu/seaice/extent/AMSRE_Sea_Ice_Area.png
SIE 2011 update 17: unfulfilled potential
During the melting season I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2005-2010. NSIDC has a good ...
It seems that updates are not happening today...IJIS, Bremen, and CT area have yet to give us the daily numbers.
SIE 2011 update 16: flash melting
During the melting season I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2005-2010. NSIDC has a good ...
I know about the UB extent graph, but where are the raw numbers?
SIE 2011 update 16: flash melting
During the melting season I'm regularly writing updates on the current sea ice extent (SIE) as reported by IJIS (a joint effort of the International Arctic Research Center and the Japan Aerospace Exploration Agency) and compare it to the sea ice extents in the period 2005-2010. NSIDC has a good ...
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