HYCOM

[Freegrass]

   

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https://www7320.nrlssc.navy.mil/GLBhycomcice1-12/navo/beaufortictn_nowcast_anim30d.gif
https://www7320.nrlssc.navy.mil/GLBhycomcice1-12/navo/chukchictn_nowcast_anim30d.gif

Interesting...
    Transport of CAB ice southward into CAA.
    Ice along the easternmost Russian coast near Wrangel Island goes from 5 meters to near 0 in 30 days?
   

Don't ever believe anything HYCOM is trying to tell you about fast ice or the CAA. There is absolutely no ice moving through the CAA at this moment in time. Or since last season.

Which doesn't mean that the garlic press won't get some serious action this year. The CAA is in big trouble.

[johnm33]

Maybe Freegrass upset them.

[Freegrass]

Maybe Freegrass upset them.

Their model was messing up big time at the end of the melting season. That's why I stopped using it. And it did indeed stop on September 5. It would be a shame if they didn't try to fix it.

Maybe they don't need it anymore because the ice is so thin that submarines can surface anywhere now?

[johnm33]

Maybe they don't need it anymore because the ice is so thin that submarines can surface anywhere now?

Didn't think of that, makes sense.

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They stopped using model GOFS 3.1 now they use ESPC-D-V02 but the only way I can figure to get an image is download the netcdf file and use panoply to open it. Click the line with SIH and change the map contour to azimuthal equal area set the north parameter to 90 and the edge angel to 20. Then if you want you can adjust the scale to max out at 5 meters on the old charts or any other scale that seems appropriate. It is a bit of work but the parameters can be saved. It looks like they updated it significantly but I have not dug into much.

https://www.hycom.org/dataserver/espc-d-v02/global-analysis

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normal 5m scale
There is little ice thicker than 1.1m


https://tds.hycom.org/thredds/catalog/FMRC_ESPC-D-V02_ice/runs/catalog.html

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the data includes the globe so you can change the area of interest.

[uniquorn]

Thanks. 382MB for each day but good resolution and 10 values.

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I just downloaded sea ice thickness at one time. It was 2.3mb

[uniquorn]

ESPC-D-V02 ice thickness oct18-22

CAA looks ok so far, still a lot of drift. May be static south of Ballantyne Strait
https://go.nasa.gov/4hi1dys light contrast

[Sublime_Rime]

Thanks Uniquorn, thats very interesting how the thicker, MYI has lifted off quite a bit from the CAA. I suppose that better than it getting flushed into the CAA, and will allow the thinner ice there to thicken. Unless it gets churned out into the Beaufort and we get an early meltout there again.

[uniquorn]

Indeed. I was more interested in whether ESPC-D-V02 improved modelling of fast ice in the CAA.
oct12-22

[uniquorn]

ESPC-D-V02 ice thickness sep1-nov11

[HapHazard]

I feel like I should be paying you for all of your posts, uniquorn.