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Ghoti Of Lod
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The BBC article about Ben Nevis snowfields is being used to promote an incorrect notion that there is suddenly glaciation occurring. The article clearly states that snowfields surviving the summer are not new. "Ben Nevis and a few other peaks in the Scottish Highlands provide the most southerly refuge for some of these species which can only survive due to the altitude and presence of semi-permanent snow fields." In fact a quick check of Wikipedia indicates the summit observatory "which operated from 1883 to 1904, reported that snow survived on the north-east cliffs through more years than it vanished". So, no, this is not new but it is recently under study and so increases of snow in cold summers are being noted.
Toggle Commented Sep 7, 2014 on PIOMAS September 2014 at Arctic Sea Ice
Chris and Jim I also noted that Dr Zhang very clearly showed that his technique, though good at predicting 2012, was completely off for 2013. I'd say it doesn't account for the weather sufficiently.
Toggle Commented Apr 2, 2014 on Forecast me not at Arctic Sea Ice
I'd think that the data from 3611 active Argo floats probably is sufficient to compensate for the loss of some moored sensors. http://www.argo.ucsd.edu/
Toggle Commented Jan 23, 2014 on Looking for winter weirdness 2014 at Arctic Sea Ice
I finally found the video on demand of Palmer's 15 minute AGU talk. Unfortunately you need to register to get access (I had registered for free at the time of the meetings). The talk was about how stochastic parameterization drastically improves the models so they actually reflect the regimes seen in nature. More relevant to the high pressure that's been blocking the western US for over a year is the Petouhkov paper on quasiresonant planetary waves. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3619331/
Toggle Commented Jan 20, 2014 on Looking for winter weirdness 2014 at Arctic Sea Ice
This pattern seems reminiscent of the 4 lobe Lorenzian attractor that Tim Palmer discussed this year at the AGU fall meetings. I can't seem to find the reference but maybe someone else recalls it.
Toggle Commented Jan 20, 2014 on Looking for winter weirdness 2014 at Arctic Sea Ice
I've been hoping to see Argo floats north of Svaldbard but it seems extremely unlikely to happen. There are a bunch deployed in the Fram between 65 and 75 degrees N but those seem most likely to drift south rather than north into the increasingly unfrozen waters north of the Fram and Barants Sea.
I think buoy 2012M is positioned on that fast ice just southwest of the south end of the big piece that just broke off. http://imb.crrel.usace.army.mil/2012M.htm The worldview images look like there's surface melting in that area.
Toggle Commented Jul 20, 2013 on Ice pack in full at Arctic Sea Ice
O-Buoy 8 went over this past Monday (morning eastern time). The image seemed to show broken ice and water runoff channel. Looked to me as if the chunk of ice it was on ridged up onto the chunk we had been viewing leaving the buoy more or less horizontal.
Yeah, given the ice is sloping and the imagery showed the webcam is on a separate piece of ice from the buoys in the view, the drainage troughs seen in the last couple of days are to be expected.
OBuoy 7 has had extensive melt ponding visible from the webcam this week. Surprising to me today is seeing that these melt ponds seem to be draining already. I didn't expect that so soon. http://obuoy.datatransport.org/monitor#buoy7/webcam
O-buoy 8 is finally providing data and webcam images from the Beaufort. Hurry and go look before there isn't anything to look at! http://obuoy.datatransport.org/monitor#buoy8/webcam O-Buoys are 2012L and 2012H. Looks like they may fall into the slush soon.
Modis may be almost useless for checking thickness but does this look like 5 meter thick ice as indicated by the navy chart? http://earthdata.nasa.gov/labs/worldview/?map=-345136.461886,-827635.47106,-45104.461886,-666099.47106&products=baselayers,MODIS_Terra_CorrectedReflectance_TrueColor~overlays,arctic_coastlines_3413&time=2013-06-10&switch=arctic I suppose fragmentation doesn't necessarily indicate anything about thickness.
Last year there were buoys that were in the location where the goats head is now. Those all got flushed out the Fram last year. We may be watching the goat's head on its final journey.
Toggle Commented May 26, 2013 on Russia abandoning ice station at Arctic Sea Ice
A-team, The csv file with the 2012 data is available but I don't know how useful it is. http://imb.crrel.usace.army.mil/irid_data/2012G_clean.csv Graphs of snow depth ice thickness and temperature are at http://imb.crrel.usace.army.mil/2012G.htm It sounded to me as if the problem of the camp wasn't the ice thickness per se. It sounded more like the ice is fragmenting badly despite the ice remaining at or near max thickness for the year.
I'm not positive but it looks like buoy 2012G was originally colocated near this station. Along with the current data there's a photo of the buoy setup that shows the station. http://imb.crrel.usace.army.mil/2012G.htm
The latest few north pole webcam photos show a pressure ridge building. Compare http://psc.apl.washington.edu/northpole/NPEO2013/WEBCAM2/ARCHIVE/npeo_cam2_20130430221806.jpg to http://psc.apl.washington.edu/northpole/NPEO2013/WEBCAM2/ARCHIVE/npeo_cam2_20130501041232.jpg This will upset the horizon measurements unfortunately.
Toggle Commented May 1, 2013 on 2012/2013 Winter Analysis at Arctic Sea Ice
The buoys deployed by the Polar Stern at the end of last summer (in the Laptev or East Siberian sea?) have already reached the north pole. Was the deployment position chosen so the buoys would be perfectly situated for the start of melt season? Does anyone know if there is a webcam on any of those buoys and if so if there is a public URL to see them?
The buoy movement in the last 10 days along the Alaska coast has been nothing short of spectacular! http://iabp.apl.washington.edu/maps_daily_arcticbasin.html
Toggle Commented Mar 9, 2013 on The cracks of dawn at Arctic Sea Ice
Looks like Shell decided to not even try drilling in the Arctic in 2013 according to news reports.
Toggle Commented Feb 28, 2013 on Shell drill spill? at Arctic Sea Ice
Good comments Bob. I agree with you completely.
Toggle Commented Feb 16, 2013 on PIOMAS February 2013 at Arctic Sea Ice
Once again the denialist Canadian government is suppressing publication of Arctic science. See Andreas Muenchow's blog post. http://icyseas.org/2013/02/07/academic-freedom-and-international-collaborations/
Toggle Commented Feb 14, 2013 on Open Thread February 2013 at Arctic Sea Ice
Werther, have you been listening to requiems?
Toggle Commented Feb 2, 2013 on 2013 Open thread #1 at Arctic Sea Ice
Looks like JAXA has begun to release AMSR2 data and Uni Bremen has begun to produce sea ice concentration maps with it. http://www.iup.uni-bremen.de:8084/amsr2/
Toggle Commented Jan 29, 2013 on 2013 Open thread #1 at Arctic Sea Ice
Tim D: "We have had an extreme value this year and regression to the mean would suggest that it should be quite close to this years minimum." That's a really good point. When the variation is an oscillation around a stable mean an extreme low would be more likely to be followed by a value closer to the mean. Looking at the PIOMAS anomaly trend suggests instead that the we aren't looking at variation around a stable mean but at a steadily declining mean. If there is regression to the mean it is to an ever decreasing one.
Toggle Commented Jan 9, 2013 on PIOMAS January 2013 at Arctic Sea Ice
On the topic of Greenland and Antarctic ice sheets contribution to sea level rise past and future Richard Alley's talk is well worth watching. http://climatecrocks.com/2013/01/05/the-weekend-wonk-richard-alley-on-ice-sheet-stability/
Toggle Commented Jan 5, 2013 on More from Greenland at Arctic Sea Ice