Studie viser «skremmende rask» smelting av Grønlandsisen

[Nautica]

Det viser at prediksjonene ikke holder mål, disse såkalte klimaforskerne klør seg i hode og forstår ingenting.

 

Du kan selv lese hva NASA skriver.

[Sturle S]

Det viser at prediksjonene ikke holder mål, disse såkalte klimaforskerne klør seg i hode og forstår ingenting.

 

Du kan selv lese hva NASA skriver.

For det fyrste er det ikkje heilt rett at han veks:

The glacier is still adding to global sea level rise - it continues to lose more ice to the ocean than it gains from snow accumulation - but at a slower rate.

 

For det andre er det ikkje sant at dei ikkje forstår noko:

The researchers conclude that the slowdown of this glacier, known in the Greenlandic language as Sermeq Kujalleq, occurred because an ocean current that brings water to the glacier's ocean face grew much cooler in 2016. Water temperatures in the vicinity of the glacier are now colder than they have been since the mid-1980s.

 

Dette er berre små overaskingar som dukkar opp undervegs. Rask smelting fører meir kaldt ferskvatn ut i havet, som i sin tur endrar havstraumane litt, og i dette tilfellet gjorde vatnet litt kaldare nett der denne breen kjem ut over havet. Ein kan ikkje modellere absolutt alt til minste detalj.

[Nautica]

Stemmer ikke helt at kaldere vann er selvpåført.
 

"Tracing the origin of the cold waters in front of Jakobshavn was a challenge," explained Ian Fenty of JPL, a co-author of the study. "There are enough observations to see the cooling but not really enough to figure out where it came from." Using an ocean model called Estimating the Circulation and Climate of the Ocean (ECCO) to help fill in the gaps, the team traced the cool water upstream (toward the south) to a current that carries water around the southern tip of Greenland and northward along its west coast. In 2016, the water in this current cooled by more than 2.7 degrees Fahrenheit (1.5 degrees Celsius).
 
Although the last few winters were relatively mild in Greenland itself, they were much colder and windier than usual over the North Atlantic Ocean. The cold weather coincided with the switch in the NAO climate pattern. Under the influence of this change, the Atlantic Ocean near Greenland cooled by about 0.5 degrees Fahrenheit (1 degree Celsius) between 2013 and 2016. These generally cooler conditions set the stage for the rapid cooling of the ocean current in southwest Greenland in early 2016. The cooler waters arrived near Jakobshavn that summer, at the same time that Jakobshavn slowed dramatically.

Endret 24. april 2019 av Nautica