We have never measured so little #SeaIce around #Svalbard #Norway in mid November.
The #OSISAF satellite-based timeseries goes back to the late 1970s.
What an almost pleasant behavior of the global sea-ice extent
- almost reaching the bottom line (=previous minimum extents) from below.
Source: #OSISAF
The ocean sector offshore of Queen Maud Land in #Antarctic lacks about 1 million kmΒ² of sea-ice cover compared to normal conditions.
The sea-ice extent has been dropping fast the recent days...π
Source: #OSISAF
The ***slower freeze-up of Arctic sea ice*** is also seen in the time series of the sea-ice extent which at present is the 7th-lowest for this time of year and far below the climatology 1981-2010.
Source: #OSISAF sea-ice index v2.2
Halfway through October 2023, the freeze-up of sea ice is slower (or simply just lower) than normal.
By "normal", is meant the 30-year climatology of the same days in 1981-2010.
Source: #OSISAF sea-ice concentration v3.0
Global sea-ice extent ranked by month.
Do you see a pattern for the recent years (=bottom of the figure)? π§
Source: #OSISAF sea-ice index v2.2.
The whole thread is worth reading, but the discussion below about #SeaIce datasets and #Osisaf is very interesting for those of us who run and/or use #CimateModels for the #Arctic....
Antarctic sea-ice extent has started to decrease after an extremely low winter maximum. Let's hope for a really slow decrease at leastπ€
Source: #OSISAF
For a week, September 12th has marked the date with the largest #Antarctic #seaice extent in 2023.
This is absolutely record-low for an Antarctic maximum extent!
This still can change and we hope it will π€
Source: #OSISAF Sea Ice Index v2.2
Has the #Antarctic #seaice stopped growing in extent this winter?
Source: #OSISAF
As we approach the annual minimum of #Arctic #seaice extent for 2023, it looks like it will be one of the six lowest on record.
To put it in perspective, the years with lower minimums than this year (in order from lowest to highest) are 2012, 2020, 2007, 2016, and 2019.
Source: #OSISAF Sea Ice Index v2.2
No surprise. But still crazy.
#Antarctic #SeaIce extent is low.
This graphic shows the ranking of sea-ice extent by month. Take a look at the last line (representing 2023 and updated including August).
Source: #OSISAF
π https://cryo.met.no/en/sea-ice-index-sh
#Arctic #SeaIce extent was 9th lowest in August (#OSISAF).
With only 2 weeks left of the melt season, we are not heading towards a record minimum this year.
Still, the π trend is clear: since 1978, #satellites recorded an average loss of 70,000 km2 of ice *per year*.
π’ #Antarctic #SeaIce extent was *record low* in August according to #osisaf
We are missing 2 millions km2 of sea ice compared to the 1981-2010 climatology.
The end of winter is approaching in the #Antarctic: soon the Sun will warm the ocean and melt the ice π .