Exceptional warming over the Barents area | Scientific Reportshttps://www.nature.com/articles/s41598-022-13568-5 https://twitter.com/Ketil_Isaksen/status/1537000487718752256?s=19In our new study in @SciReports we identify a record-high observed warming of up to 2.7 °C per decade over the Barents area
We have established a comprehensive high-quality dataset on surface air temperature (SAT) observed over the past 20 to 40 years from the Arctic warming hotspot archipelagos Svalbard and Franz Josef Land in the northern Barents area
Until now, the surface air temperature development of Northern and Eastern
#Svalbard has been unexplored. This new dataset provides time series that are longer than those that have been used so far
From observations: The highest warming rates were found in the Northern and Eastern parts of the Barents area and were up to twice as high than hitherto known in this region from reference station series in the Western and Southern part of Svalbard
The recently released high-resolution @CopernicusECMWF Arctic Regional ReAnalysis (#CARRA) supported our findings and showed notably greater trends and represented temperature more accurately than the widely used reanalysis ERA5
From reanalysis: The regional warming rate for the Northern Barents Sea is exceptional on the
#Arctic and
#global scale and corresponds to five to seven times the global average!
Both the long-term trend and the interannual variability showed high compliance between the Sea Ice Concentration (SIC, @OSISAF, @Istjenesten) versus Surface Air Temperature (SAT, @Meteorologisk, @CopernicusECMWF) - both locally around the weather stations and regionally
We demonstrated that the temperature (SAT) increase is strongly linked, both in space and time, to the large reduction of sea ice (SIC) in the Northern Barents Sea
Data sources: @CopernicusECMWF @OSISAF