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Jim Hunt
South West England
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Neven is no doubt working on a new post even as we speak, but Wipneus has already crunched the March PIOMAS gridded thickness numbers: http://GreatWhiteCon.info/2018/04/facts-about-the-arctic-in-april-2018/
Toggle Commented Apr 3, 2018 on Bering goes extreme at Arctic Sea Ice
It has been reported in certain quarters that some submarines have recently become "stuck in the Arctic ice". Needless to say the truth of the matter is rather different: http://GreatWhiteCon.info/2018/04/hms-trenchant-surfaces-at-the-icex-2018-ice-camp/
Toggle Commented Apr 2, 2018 on Bering goes extreme at Arctic Sea Ice
Wayne - What was the CRREL web site hasn't been updated in ages, so there's no news on the design of the new buoy as yet. I guess I could ask Don? Meanwhile, although it doesn't sound as though there'll be an IMB buoy installed near the North Pole this year, the first news has finally started flowing from the Barneo Ice Camp 2018 edition: https://forum.arctic-sea-ice.net/index.php/topic,2290.0.html
Toggle Commented Apr 1, 2018 on Bering goes extreme at Arctic Sea Ice
Hi Wayne - Whilst not directly relevant to the Bering Sea of course, you might be interested in this snippet of information? I've just received this note from Don Perovich regarding Arctic IMB buoys this season: http://GreatWhiteCon.info/resources/ice-mass-balance-buoys/summer-2018-imb-buoys/ We developed the next generation of our seasonal ice mass balance buoy and are deploying them. The new buoys have a number of improvements including a customized controller board. They also have a new format for the datastream, which means rewriting our data processing software. The plan is to finish the software revisions by June, so that the web site automatically gets updated. We do have some deployment plans for this year. 1. Beaufort Sea – deployed last week. 2. Just north of Prudhoe Bay – deployed on Monday 3. Two deployed in Beaufort Sea in conjunction with WARM buoy – to be deployed later this week. 4. Three in Eastern Arctic – to be deployed in September 5. Two in Beaufort Sea – to be deployed in September.
Toggle Commented Mar 31, 2018 on Bering goes extreme at Arctic Sea Ice
Apart from extent it's useful to also take a look at Arctic sea ice thickness at this time of year: http://GreatWhiteCon.info/2018/03/the-2018-maximum-arctic-sea-ice-extent/ [The thickness maps] reveal large areas of relatively thin sea ice in the Okhotsk and Barents Seas where the ice can now be expected to melt as quickly as it formed. There is also remarkably little sea ice in the Bering Sea for the time of year. P.S. The 2018 NASA Operation IceBridge campaign has just started: https://forum.arctic-sea-ice.net/index.php/topic,2282.0.html
Al - The raw AMSR2 data comes from JAXA, but the University of Hamburg process it differently to the Japanese National Institute of Polar Research when calculating sea ice concentration. The former uses the "ARTIST sea ice" algorithm (ASI for short). The latter is commonly referred to as "JAXA extent", and uses the NASA "bootstrap" algorithm.
Toggle Commented Feb 12, 2018 on PIOMAS February 2018 at Arctic Sea Ice
AMSR2 derived Arctic sea ice extent is still decreasing following the recent cyclone: However Arctic sea ice area has started to increase once again: http://GreatWhiteCon.info/2018/02/facts-about-the-arctic-in-february-2018/#Feb-10 Meanwhile global sea ice extent is most certainly in "lowest in the satellite era" territory:
Toggle Commented Feb 10, 2018 on PIOMAS February 2018 at Arctic Sea Ice
Thanks for the mention Neven. Here's the latest post cyclone AMSR2 sea ice concentration map: plus a sea ice drift animation: http://GreatWhiteCon.info/2018/02/the-february-2018-fram-strait-cyclones/#Feb-08
Toggle Commented Feb 8, 2018 on PIOMAS February 2018 at Arctic Sea Ice
The recent cyclone has duly done its battering. Click on the animation at: http://GreatWhiteCon.info/2018/02/the-february-2018-fram-strait-cyclones/#Feb-07 To summarise:
Toggle Commented Feb 7, 2018 on PIOMAS January 2018 at Arctic Sea Ice
Rain is forecast for Svalbard once again, as are giant waves in the Fram Strait: http://GreatWhiteCon.info/2018/02/the-february-2018-fram-strait-cyclones/ The sea ice on the Arctic is in for a bit of a battering tomorrow, and for some time to come too!
Toggle Commented Feb 4, 2018 on PIOMAS January 2018 at Arctic Sea Ice
The official PIOMAS January data have not yet been released, but Wipneus has worked his usual magic on the gridded thickness numbers: http://GreatWhiteCon.info/2018/02/facts-about-the-arctic-in-february-2018/ Estimated from the thickness data, the latest value is from 31st of January: 17.57 [1000 km3], which is the second lowest value for that day, 2017 is lowest by a rather large margin at 16.16 [1000 km3].
Toggle Commented Feb 3, 2018 on PIOMAS January 2018 at Arctic Sea Ice
Perhaps marginally more on topic? http://www.independent.co.uk/life-style/oymyakon-world-coldest-village-russia-siberia-freezing-temperatures-cold-sub-zero-a8161371.html Oymyakon is a village in the Russian region of Yakutia. It’s named after the Oymyakon River, which literally translates to mean: “unfrozen patch of water; place where fish spend the winter.” The digital thermometer in the village was installed last year to appeal to tourists. However, as temperatures dwindled to -62C, the thermometer broke down because it was too cold. The coldest temperature ever recorded in a permanently inhabited area was -68C in Oymyakon in 1933.
Toggle Commented Jan 19, 2018 on PIOMAS January 2018 at Arctic Sea Ice
This is news too Wayne! Storm Friederike has been causing havoc and fatalities across Europe: http://www.bbc.co.uk/news/world-europe-42731505 Eight people including two firefighters have been killed in storm-related accidents as hurricane-strength winds tear across northern Europe. Both firefighters were helping with clean-up efforts in Germany when they died. Many of those killed, in the Netherlands and in Germany, were hit by falling trees and debris. One died in a collision when his van was blown on to the other side of the road. The storm has now crossed to Poland. Facing gusts of up to 140km/h (90mph), Germany's train operator Deutsche Bahn cancelled all long-distance services for the rest of Thursday. Many regional services were also cancelled. Flights at Schiphol airport in Amsterdam - one of the busiest in Europe - were briefly suspended and two of its three departure halls were closed after roof plates were blown off the terminal building.
Toggle Commented Jan 19, 2018 on PIOMAS January 2018 at Arctic Sea Ice
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: http://GreatWhiteCon.info/2018/01/the-january-2018-fram-strait-cyclones/ There are also currently severe weather warnings in place for Svalbard for both rain and avalanches. In the middle of January.
Toggle Commented Jan 13, 2018 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" https://doi.org/10.5194/bg-2017-521 "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 Jan 13, 2018 on PIOMAS January 2018 at Arctic Sea Ice
Wipneus has issued his PIOMAS mid month update: http://GreatWhiteCon.info/2017/12/the-festive-season-in-the-arctic/#Dec-20 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: http://GreatWhiteCon.info/resources/ice-mass-balance-buoys/winter-201718-imb-buoys/#2017B 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: http://www.V2G.co.uk/tag/carbon-intensity/
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: http://www.V2G.co.uk/2017/09/an-electric-car-club-for-camelford/ 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? http://www.V2G.co.uk/2016/12/nissan-unveil-solar-pv-integrated-static-xstorage-for-uk/
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: https://twitter.com/V2gUK/status/935571429441105922 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: http://www.g-pbatt.co.uk/recycle.html
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: https://www.asa.org.uk/rulings/bmw--uk--ltd-a17-389311.html Here too is an English language overview of a recent French report on EV v ICE lifetime emissions: https://europeanclimate.org/le-vehicule-electrique-dans-la-transition-ecologique-en-france/ 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: http://GreatWhiteCon.info/2017/09/the-2017-arctic-sea-ice-metric-minima/ 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: http://GreatWhiteCon.info/2017/09/pine-island-glacier-calves-again/
Toggle Commented Sep 24, 2017 on PIOMAS September 2017 at Arctic Sea Ice