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Jim Hunt
South West England
Recent Activity
There are currently two powerful cyclones off Greenland, pumping heat and moisture northwards from a long way south and generating some very large waves in the Fram Strait: There are also currently severe weather warnings in place for Svalbard for both rain and avalanches. In the middle of January.
Toggle Commented 4 days ago on PIOMAS January 2018 at Arctic Sea Ice
Thanks Wayne, See also this new N-ICE2015 paper which covers temperature profiles and salinity of Arctic sea ice snow cover, amongst other things: "CO2 flux over young and snow-covered Arctic sea ice in winter and spring" "We measured CO2 fluxes along with sea ice and snow physical and chemical properties over first-year and young sea ice north of Svalbard in the Arctic ice pack. Our results suggest that young thin snow-free ice, with or without frost flowers, is a source of atmospheric CO₂ due to the high pCO2 and salinity and relatively high sea ice temperature. Although the potential CO₂ flux through the sea-ice surface decreased due to the presence of snow, snow surface still presents a modest CO₂ source to the atmosphere for low snow density and shallow depth situations. The highest ice to air fluxes were observed over thin young sea ice formed in leads. During N-ICE2015 the ice pack was dynamic, and formation of open water was associated with storms, where new ice was formed. Open leads and storm periods were important for air-to-sea CO₂ fluxes (Fransson et al., 2017), due to undersaturation of the surface waters, while the subsequent ice growth in these leads becomes important for the ice-to-air CO₂ fluxes in winter due to the fact that the flux from young ice is an order of magnitude larger than from snow-covered first-year ice."
Toggle Commented 4 days ago on PIOMAS January 2018 at Arctic Sea Ice
Wipneus has issued his PIOMAS mid month update: There's also a new sea ice age paper from Pierre Rampal et al. That one's for January 1st 2016.
Toggle Commented Dec 21, 2017 on PIOMAS December 2017 at Arctic Sea Ice
Long time no see Wayne. The IMB buoy page has just been updated. There are still no numbers available for 2017C & D, but after floating in its hole for a bit 2017B is firmly fixed once again: No sun angle issues at this time of year!
Toggle Commented Dec 15, 2017 on PIOMAS December 2017 at Arctic Sea Ice
Rob - Whilst I do appreciate that people publicly peddling porky pies do need to be publicly corrected, do you think it might be possible to try and stick to the Arctic/Antarctic theme in here? For much more on the carbon intensity of the UK grid see for example:
Toggle Commented Dec 14, 2017 on PIOMAS December 2017 at Arctic Sea Ice
Jim - At the risk of repeating myself, I have a blog devoted to that sort of thing. Would you by any chance care to have a rant about the concept of "mobility as a service" and "electric car clubs"? If so please feel free to go to: If you don’t possess a car you’re more likely to indulge in healthier alternatives such as walking or cycling for short journeys.
Toggle Commented Dec 13, 2017 on PIOMAS December 2017 at Arctic Sea Ice
AJbT - There you have it. If you'd like to discuss the "recycling" of EV battery packs further perhaps we might adjourn to my "professional" blog? How about here for starters?
Toggle Commented Dec 11, 2017 on PIOMAS December 2017 at Arctic Sea Ice
AJbT - At the risk of drifting even further off topic, I was discussing that very issue with Nissan's Francisco Carranza, amongst others, not so very long ago: According to Francisco LEAF EV batteries can first be "recycled" into static battery storage. When they degrade further virtually all the materials can be recycled and reused. Others didn't seem quite so confident of that:
Toggle Commented Dec 9, 2017 on PIOMAS December 2017 at Arctic Sea Ice
AJbT - It would have been helpful if the Grauniad had provided a link to the ASA ruling. Here it is: Here too is an English language overview of a recent French report on EV v ICE lifetime emissions: The analysis shows today, the Global Warming Potential (GWP) of a small Battery Electric Vehicle (e.g. ZOE – 22 kWh) is 70% less than the GWP of a small gasoline car. The GWP of a large BEV is 57% less than the GWP of large diesel car. In 2030, the gap between Internal Combustion Engines vehicles and Battery Electric Vehicles is reduced due to the mild-hybridization of ICE vehicles but BEVs still have less lifecycle emissions. Recycling is an important element to reduce life-cycle impacts of large BEVs and should be incentivized. On average, a 30% increase of the battery recycling mass rate leads to a 14% decrease of the overall EV’s GWP.
Toggle Commented Dec 8, 2017 on PIOMAS December 2017 at Arctic Sea Ice
Merry Xmas Neven, and all at the Arctic Sea Ice Blog! Santa's secret summer swimming pool has frozen over once again, so here's my own look at the forthcoming festive season in the Arctic: "The 2017/18 Festive Season in the Arctic" Your overview is much more comprehensive than mine, and I too had noticed "the large area of pale blue open ocean still visible in the Chukchi Sea". However one interesting piece of the Arctic puzzle isn't shown above as yet. The University of Bremen's latest SMOS thickness map: ""
Toggle Commented Dec 7, 2017 on PIOMAS December 2017 at Arctic Sea Ice
Susan - You could try: 67 comments so far, and the "discussion" is heating up even as the Arctic slowly cools down.
Toggle Commented Sep 24, 2017 on PIOMAS September 2017 at Arctic Sea Ice
News from the Antarctic just for a change. The Pine Island Glacier has calved a big one yet again:
Toggle Commented Sep 24, 2017 on PIOMAS September 2017 at Arctic Sea Ice
Hans - You may be interested in this?,1834.msg125795.html#msg125795 There's little support for the polynya occurring every year, which restricts the space of possible explanations.
The latest blog post from Andreas Muenchow:
Hans - There's much more on that story on the ASIF:,854.msg123499.html#msg123499
A very interesting winter, followed by a very interesting summer! And the show's not over until the fat lady sings. I'm not about to make such a prediction, but I wonder if Lewis and/or Neven would care to predict the value (and date?) of the summer 2017 minimum for one or more Arctic sea ice metrics? Here's some more suggestions from the ASIF:,2126.0.html
Whatever criterion you choose to use, I think it's now just about safe to say that the Northern Sea Route is "open": The Northwest Passage isn't quite there yet. IMHO!
Toggle Commented Aug 22, 2017 on PIOMAS August 2017 at Arctic Sea Ice
See also the Arctic Coastal Change thread over on the forum.
Toggle Commented Aug 19, 2017 on Guest blog: Tuk toy what? at Arctic Sea Ice
Here's a Typepad compatible animation from Wipneus, revealing the effect of the two recent cyclones on the Pacific side, plus everything else that’s been going on in the Arctic too: Click the image to see a much larger (3.3 Mb) version.
Toggle Commented Aug 13, 2017 on PIOMAS August 2017 at Arctic Sea Ice
I tried that Rob, but as a 3rd party I still only saw the "Please update your account" image.
For those particularly interested in wildfires there is an entire section of the Arctic Sea Ice Forum devoted to them:,1368.0.html The current "unusual fire event [in] Greenland (southwest)" does get a mention. For the benefit of irregular readers, almost any Cryospheric topic you might wish to discuss will already have been covered over on the Arctic Sea Ice Forum. Failing that feel free to start a new thread over there. Neven's monthly PIOMAS articles here on the ASIB can be considered as limited "open threads", but otherwise please endeavour to stay "on topic" in here.
Actually the best place to look for such things is the Petermann Gletscher thread over on the ASIF:,53.msg122402.html#msg122402 There you can see a whole sequence of images of: The little piece (about 6 km2) at the front of Petermann Glacier that I have been watching [that] has broken off.
At the risk of inflaming matters further: Fires are rare on an island where 80% of the land is covered by ice up to 3km thick in places. However, satellites have observed smoke and flames north-east of a town called Sisimiut since 31 July. Experts believe at least two fires are burning in peat that may have dried out as temperatures have risen.
Exactly so Susan. Once again. In actual fact Alice F., Snow White and I can take it too. Maybe we should all get together and form a red team?
Excellent Daniel. Some progress at last! It does of course remain to be seen whether Bill is satisfied with that. Moving on, how about retracting your "rather damning indictment of this community" too?