Support the Arctic Sea Ice Forum and Blog

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - TenneyNaumer

Pages: [1]
1
Arctic sea ice / Re: The 2019 melting season
« on: May 11, 2019, 06:41:44 AM »
Glacier that moved 60 feet a year, now moves 60ft a day; (Vavilov Ice Cap in Laptev)

https://earthobservatory.nasa.gov/images/144790/a-surprising-surge-at-vavilov-ice-cap

Another link with a good video;

https://earther.gizmodo.com/watch-a-russian-glacier-experience-sudden-unprecedente-1829194880

Satellite time lapse;

https://earthengine.google.com/timelapse#v=79.29346,94.90916,7.13,latLng&t=0.8&ps=100&bt=
19840101&et=20181231&startDwell=0&endDwell=0

2
Arctic sea ice / Re: The 2019 melting season
« on: May 08, 2019, 05:05:59 PM »
Not much warmth in the pacific inflow as yet, just salinity. Atlantic water more dominant in the Laptev than last year (according to the model)
Mercator salinity 0m, mar1-may7

Can increased salinity cause additional bottom melt due to suppressing the freezing point?

it not only can but does.

temps on the bottom of the ice are much higher most of the time (except summer) than at the surface and ice at those temps will certainly be impacted by higher salinity, not to says kind of eaten away, given salinity is reaching a certain level which is more or less what happens on the pacific side at the moment.

if you look not only at air temp anomalies but also at absolute temps, you will see that ice is retreating even in places where air temps are way below freezing point, this happens when either warm waters or more saline water is attacking the ice from below (or both at the same time. )

3
Arctic sea ice / Re: The 2019 melting season
« on: May 08, 2019, 11:03:55 AM »
Siberia is also now rapidly losing its snowcover in the highest latitudes. Scroll EOSDIS at link for the full picture. As these losses accelerate expect the Laptev gap and ESS / Chukchi to begin melting and retreating in earnest. These are the regions where ice formation was most below normal this winter (and most of the Kara).

https://worldview.earthdata.nasa.gov/?p=arctic&l=MODIS_Aqua_CorrectedReflectance_TrueColor(hidden),MODIS_Terra_CorrectedReflectance_TrueColor,Reference_Labels(hidden),Reference_Features(hidden),Coastlines&t=2019-05-08-T00%3A00%3A00Z&z=3&v=-3134673.7846731436,925263.8615537761,2108206.2153268564,3472975.861553776

4
Arctic sea ice / Re: The 2019 melting season
« on: May 08, 2019, 08:43:41 AM »
There is a hell of a lot of first-year ice in the Barents. I'd expect a free-fall in extent from that region pretty soon.

5
Arctic sea ice / Re: The 2019 melting season
« on: May 08, 2019, 07:12:34 AM »
May 2-7.

6
Arctic sea ice / Re: The 2019 melting season
« on: April 10, 2019, 06:03:36 PM »
Tom, for BOE discussion go to the thread "When will the Arctic go ice-free". And forget Sam Carana.

7
Arctic sea ice / Re: The 2019 melting season
« on: April 10, 2019, 04:58:51 PM »
Let's not discuss Sam Carana here. Or anywhere on this Forum, as far as I am concerned.

8
 It looked like the cill at Disko was stopping flow, but even after the tides peaked it's broken free and looks to have set everything in motion again.


from polarview

9
Through the clouds,

yesterday there was an image where it looked possible that a dam was forming no sign in that powerful flow.

10
Arctic sea ice / Re: The 2018 melting season
« on: June 16, 2018, 08:06:08 PM »
Big news from the remarkable gerontocrat on the area and extent blog (just in case you are not following this...)

Extent, meet Reality,  Reality...


NSIDC ONE DAY DAILY EXTENT DROPPED BY:-

112 k 15th June
110 k 14th June

First double century break of the season? Now the June cliff starts (or not) ?
200,000 KM2 of sea surface that just dropped from about a .6 albedo to about .06, and that change is not focused in just one zone - it's all over the pack.  That translates into an instant 1-2% increase in heat uptake.

There's at least another million KM2 of ice in nearly as vulnerable a state as that which just vanished.  Interesting days may be immediately ahead.

Pages: [1]