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Author Topic: Arctic Ocean salinity, temperature and waves  (Read 117075 times)

uniquorn

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Re: Arctic Ocean salinity, temperature and waves
« Reply #800 on: January 27, 2021, 12:08:04 AM »
Haven't noticed turbulence west of FJL before. I hesitate to say that they look like standing waves...

uniquorn

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Re: Arctic Ocean salinity, temperature and waves
« Reply #801 on: February 01, 2021, 10:22:32 PM »
Looking  more closely at the mixed layer depth in the West Spitsbergen current. Here the scale is set from 10m-350m so black is deeper than 350m as we are not clamping out of range values.
https://tinyurl.com/y2gkyfug

dec1-feb1 (7.2MB)

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Re: Arctic Ocean salinity, temperature and waves
« Reply #802 on: February 05, 2021, 01:45:07 PM »
A small cyclone whipped over the Yermak plateau yesterday

uniquorn

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Re: Arctic Ocean salinity, temperature and waves
« Reply #803 on: February 05, 2021, 08:32:09 PM »
Ice beginning to win the war of attrition with the West Spitzbergen current northwest of FJL.
rammb, jan26-feb4

added awi-amsr2-v103-feb1-5

and wv brightness temp, feb6  https://go.nasa.gov/3oTdw83

and argo float 3902108 reporting SST of well over 4C on Feb4. Holding that temp to a depth of 200m. Hopefully this float will stay with the WSC as it turns east.
Quote
PLATFORM_CODE   DATE (YYYY-MM-DDTHH:MI:SSZ)   DATE_QC   LATITUDE (degree_north)   LONGITUDE (degree_east)   POSITION_QC   PRES (decibar)   PRES_QC   PSAL (psu)   PSAL_QC   TEMP (degree_Celsius)   TEMP_QC
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   2.9   1   35.015   1   4.27   1
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   4.2   1   35.015   1   4.271   1
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   5      1   35.014   1   4.274   1
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   5.9   1   35.012   1   4.275   1
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   6.7   1   35.017   1   4.27   1
.
.
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   199.2   1   35.006   1   4.278   1   199.2   1   4.278
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   201.1   1   35.01   1   4.274   1   201.1   1   4.274
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   203   1   35.01   1   4.274   1   203   1   4.274
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   205.4   1   35.008   1   4.274   1   205.4   1   4.274
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   207.9   1   35.009   1   4.273   1   207.9   1   4.273
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   209.8   1   35.008   1   4.269   1   209.8   1   4.269
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   211.8   1   35.008   1   4.265   1   211.8   1   4.265
3902108   2021-02-04T20:23:30Z   1   77.84765   9.33892   1   213.8   1   35.007   1   4.259   1   213.8   1   4.259
« Last Edit: February 06, 2021, 06:47:25 PM by uniquorn »

uniquorn

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Re: Arctic Ocean salinity, temperature and waves
« Reply #804 on: February 06, 2021, 01:20:05 AM »
https://go.nasa.gov/3cFyViG
:bookmark for weak Laptev ice north and west of NSI
« Last Edit: February 06, 2021, 12:49:00 PM by uniquorn »

uniquorn

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Re: Arctic Ocean salinity, temperature and waves
« Reply #805 on: February 06, 2021, 12:50:52 PM »
Polarview S1B crop of WSC area above. (half size)

location of the image.
A lot of images of the white band area recently

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Re: Arctic Ocean salinity, temperature and waves
« Reply #806 on: February 06, 2021, 04:25:40 PM »
Laptev ice dynamics, jan7-feb5. The Polarview S1A sweep missing out the crucial frame.
40km/h surface winds at -16C close to NSI during feb2-3 with cloud. Up to 70km/h at 1000hPa
« Last Edit: February 06, 2021, 08:04:30 PM by uniquorn »

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Re: Arctic Ocean salinity, temperature and waves
« Reply #807 on: February 07, 2021, 11:25:51 AM »
This constant high pressure with less clouds gives us a great winter view of ice movement.
https://go.nasa.gov/3cPUmNR, amsr2-uhh inset, Kara,  jan12-feb6

Much less fast ice than usual this year. Again, feb2-4 causing lift off.

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Re: Arctic Ocean salinity, temperature and waves
« Reply #808 on: February 09, 2021, 01:09:57 AM »
Argo float 6903547 a little further off the west coast of Svalbard showing colder temps of -1.727C at 6.1m depth on Feb6.

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Re: Arctic Ocean salinity, temperature and waves
« Reply #809 on: February 09, 2021, 01:58:25 PM »
rough overlay of buoy positions onto amsr2-uhh, feb6 explaining the drop in temperatures at Argo float 6903547 on the tip of the tongue in the fram strait

float7900550, north of Svalbard also resurfaced on feb6, quite a chart. Will have to check some other days though it is right on the shelf break.

« Last Edit: February 09, 2021, 03:41:18 PM by uniquorn »

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Re: Arctic Ocean salinity, temperature and waves
« Reply #810 on: February 10, 2021, 11:56:57 PM »
Following on from here in the freezing season thread, a few more observations on the february anticyclone event.

Close up on the siberian side, feb9-10

A wider view showing the engagement of the Beaufort into a larger drift. feb5-10

rammb band I5, feb7-10   https://col.st/YDzXQ

lol polarview


« Last Edit: February 11, 2021, 12:42:50 AM by uniquorn »

uniquorn

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Re: Arctic Ocean salinity, temperature and waves
« Reply #811 on: February 11, 2021, 04:28:34 PM »
Argo float 6903558 in the WSC west of Svalbard a little farther away from the ice edge recording SST of just over 2.5C on feb9. I suppose that is mixed layer to 200m.

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Re: Arctic Ocean salinity, temperature and waves
« Reply #812 on: February 12, 2021, 12:10:45 PM »
A close up of the ess break up edge, feb3-11  https://go.nasa.gov/3jJQe3B

Laptev, feb3-11.  https://go.nasa.gov/2Z9Q247
« Last Edit: February 12, 2021, 12:22:17 PM by uniquorn »

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Re: Arctic Ocean salinity, temperature and waves
« Reply #813 on: February 19, 2021, 12:28:32 PM »
Refreeze tails near the ice edge over the WSC north west of FJL. Wind is from bottom right to top left. I suppose the brine sinks and the fresher water refreezes. Or maybe it's just ablation and smaller pieces don't catch the wind.

S1B_EW_GRDM_1SDH_20210218T060452_994C_N_1.final cropped, half size.

Full size close up.

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Re: Arctic Ocean salinity, temperature and waves
« Reply #814 on: February 23, 2021, 01:10:47 AM »
arc feb22 for ref

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Re: Arctic Ocean salinity, temperature and waves
« Reply #815 on: February 28, 2021, 02:22:13 PM »
https://go.nasa.gov/2NDCZWH  brightness temp from suomi/npp and noaa20, feb28

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Re: Arctic Ocean salinity, temperature and waves
« Reply #816 on: March 01, 2021, 11:25:05 AM »
Worldview aqua modis of Chukchi today, slight contrast adjustment
https://go.nasa.gov/2O8uJO7

Perhaps all caused by pressure difference across the bering strait, maybe a component from underlying ocean current.

Nearest buoy is air launched buoy AXIB 300234065495020 attempting a complete circuit of 'the gyre'. Temps very cold recently. No salinity data. Jan2018-feb2021, a sturdy buoy.
« Last Edit: March 01, 2021, 11:48:37 AM by uniquorn »

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Re: Arctic Ocean salinity, temperature and waves
« Reply #817 on: March 02, 2021, 10:24:29 AM »
https://go.nasa.gov/3e0Pfek, atlantic side, heavy contrast