Support the Arctic Sea Ice Forum and Blog

Author Topic: Norwegian Sea temperatures  (Read 1507 times)

uniquorn

  • First-year ice
  • Posts: 5303
    • View Profile
  • Liked: 2267
  • Likes Given: 392
Norwegian Sea temperatures
« on: June 01, 2024, 11:48:57 PM »
Chart is calculated from mean Argo float temperatures in the polygon shown in the first image attempting to avoid any colder water in the East Greenland Current.
https://go.nasa.gov/3VpF888

Data was gathered using the argoFloats package in R.
https://cran.r-project.org/web/packages/argoFloats/vignettes/argoFloats.html

Example of float distribution selected. More individual float data is available on https://fleetmonitoring.euro-argo.eu/float/3901865

Will attempt to update monthly

uniquorn

  • First-year ice
  • Posts: 5303
    • View Profile
  • Liked: 2267
  • Likes Given: 392
Re: Norwegian Sea temperatures
« Reply #1 on: June 02, 2024, 01:19:59 PM »
Much of coastal southern Norway is presently experiencing a marine heatwave. SST anomaly today off Bergen is +5.3° C



Equally in the Gulf of Finland SSTs have rocketed up to a balmy 15°. The attached image from SMHI shows that the  2008 to 2022 mean water temperature for Gulf of Finland is 8.6° (circled). Over 6° above normal !

Bergen is a little south of the polygon but I think this is relevant.

johnm33

  • Grease ice
  • Posts: 885
    • View Profile
  • Liked: 147
  • Likes Given: 128
Re: Norwegian Sea temperatures
« Reply #2 on: June 03, 2024, 12:36:53 PM »
I have to wonder if this represents a mass movement of Atl. waters north to balance what I believe is an increasing outflow at Fram. Driven by both the inevitable replacement of lost Arctic waters and the displacement that causes south of Greenland?
I'm guessing if that's the case then as the ice becomes more 'fluid' it will present less resistance to the outflow causing the anomoly in turn to migrate north, towards if not actually into Barents, whilst maintaining a similar temp to the waters south of Ireland?

uniquorn

  • First-year ice
  • Posts: 5303
    • View Profile
  • Liked: 2267
  • Likes Given: 392
Re: Norwegian Sea temperatures
« Reply #3 on: June 16, 2024, 09:27:14 PM »
I have to wonder if this represents a mass movement of Atl. waters north...

I think it is just warmer water moving north with the normal currents but they do vary a lot based on the RAPID data.

Mid month update on Norwegian sea Argo float temps. I went back to 2020 to detect a small upward trend in temperature above 500m and a small downward trend below 500m. Will look at previous years but there are fewer floats.

uniquorn

  • First-year ice
  • Posts: 5303
    • View Profile
  • Liked: 2267
  • Likes Given: 392
Re: Norwegian Sea temperatures
« Reply #4 on: June 29, 2024, 05:31:46 PM »
Float 6901929 was released in 2018, eventually I will get the temperature data back to there.
https://fleetmonitoring.euro-argo.eu/float/6901929

uniquorn

  • First-year ice
  • Posts: 5303
    • View Profile
  • Liked: 2267
  • Likes Given: 392
Re: Norwegian Sea temperatures
« Reply #5 on: July 01, 2024, 01:36:52 PM »
updated from 201906-202406

uniquorn

  • First-year ice
  • Posts: 5303
    • View Profile
  • Liked: 2267
  • Likes Given: 392
Re: Norwegian Sea temperatures
« Reply #6 on: September 01, 2024, 01:13:16 PM »
updated from 201906-202408

average 0-10m raw temps 11.47C peaking at over16C near the coast.
Below maybe 50m it appears to be cooler over the last 2 months.

Float 6903547 did the round trip in 6.24years
https://fleetmonitoring.euro-argo.eu/float/6903547