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Greg,
The important part in PIOMAS is the sentence in 1st paragraph, that states the Sep average was 4000 cubic km, which is a new minimum (of course).
-Gili
Open Thread 1
Discuss whatever there is to discuss... For instance this: Do we have a record yet? Update: Jack Taylor contacted me with instructions how to embed a Flash Player animation for ice advection. Here's a nice image for an open thread: Thanks, Jack! Update September 27th: Ladies ...
Dodger, you're right, should use the area number, not extent.
-Gili
Sea ice extent update 21: 7 million mark passed
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 2006-2009. The IJIS graph is favoured by almost everyo...
I guess it's best to ask the PIOMAS guys for their number, as it really matters if you interpret the daily average graph value as start-of-month or month average (mid-month).
-Gili
Sea ice extent update 21: 7 million mark passed
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 2006-2009. The IJIS graph is favoured by almost everyo...
Clearly the average for July end is about 14.4 (maybe 14.5). Subtract 10 and you get 4.4. The area to use is probably 6.9 (31 Jul), you get 4.4/6.9, about 0.638.
-Gili
Sea ice extent update 21: 7 million mark passed
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 2006-2009. The IJIS graph is favoured by almost everyo...
That was volume, average thickness is 4.4/6.7, about 0.657 meter
-Gili
Sea ice extent update 21: 7 million mark passed
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 2006-2009. The IJIS graph is favoured by almost everyo...
The ice thickness is about 4.4 [1000 km**3]- very low indeed. This is a bit rough, as I estimate the daily average from the graph. If anyone knows where the actual data is, that helps. In any case we're dealing with model estimates.
-Gili
Sea ice extent update 21: 7 million mark passed
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 2006-2009. The IJIS graph is favoured by almost everyo...
Hi Dodger,
If you look at the past 5 years, melt season weather has played a major role (cloud cover, winds). The Gulf stream is also clearly important, but I'm not aware of important Pacific flows. Will appreciate pointers to articles about this.
-Gili
Sea ice extent update 19: promising, but premature
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 2006-2009. The IJIS graph is favoured by almost everyo...
The last 2 days PIPS show the gyre direction as clockwise, which may explain why the melt is picking up again..
Also, the ice flow out of Lincoln sea via Nares strait seems to have resumed, based on comparing ASAR images from yesterday (in the DMI site; regular images show only the cloud cover).
-Gili
Sea ice extent update 16: back to the 30's (again)
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 2006-2009. The IJIS graph is favoured by almost everyo...
Guys,
There's an interesting piece by Dr. Walt Meier, about PIPS2-vs-PIOMAS, in WATTS. Essentially it says that for ice volume estimates PIPS is not relevant, PIOMAS is. Yes,
it says so in WATTS.
-Gili
Sea ice extent update 15: improving ever so slightly
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 2006-2009. The IJIS graph is favoured by almost everyo...
The ice-bridge in NWP is breaking (cloud cover just moved).
You started looking at melt in specific parts of the arctic, which is the way to go: what matters in September is how much ice melted from the arctic basin, elsewhere very little is left. Seems this year there will be less ice towards Sxandinavi/Svalbard then in 2007, but towards the Chukchi sea, Beaufort and East Siberian there was a large melt in 2007, probably less this year, a bit early to tell.
Due to the unusual amount of thick ice in the East Siberian, the North East Pass may open later than the NWP, which to me seems a big surprise.
-Gili
Sea ice extent update 14: back to the 30's
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 2006-2009. The IJIS graph is favoured by almost everyo...
Both the Topaz and PIPS2 models claim the only large area with thick ice left is in the East Siberian Sea. This fits well with MODIS images of that area, and is quite different from recent years.
-Gili
Sea ice extent update 11: the tables are turning
I'll be 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 2006-2009. The JAXA graph is favoured by almost ev...
Hi,
The AARI drift forecast for 4-6 days is very strange: it reverses the direction of both the Beaufort Gyre and the TransPolar drift-- I think you should ignore it. Thanks for the nice constant blogging work.
-Gili
Sea ice extent update 10: leg broken?
I'll be 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 2006-2009. The JAXA graph is favoured by almost ev...
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