Record hit for most ice to melt in Antarctica in one day
The "data" comes from a model (which starts in 1979 only) so is not data at all, just guesswork. And generalizing from one instance is in any case close to brain-dead
What seems to be happening is that the Antarctic ice sheet is the big frustration for Warmists -- as it is if anything gaining mass -- so this one little glimmer of melting is seized on eagerly, making a mountain out of a pimple
The record in recent decades for the highest level of ice to melt in Antarctica in one day was reached on Christmas Eve, data suggests.
Around 15 percent of the continent's surface melted on Monday, according to the Global Forecast System (GFS) by the National Centers for Environmental Prediction (NCEP). The data comes from the Modèle Atmosphérique Régional (MAR), a model used for meteorological and climatic research.
Xavier Fettweis, a climatologist at the University of Liège in Belgium, who tweeted the data on Friday, said this is the highest melt extent in Antarctica in the modern era, since 1979. He added the production of melt water is a record 230 percent higher than average since November this year. That's despite the melting season not yet being over.
For the first time, Fettweis said, the melting seemed to explain a negative anomaly in data on Antarctica's surface mass balance (SMB). This is the net balance between what causes a glacier's surface to grow or deplete, for instance because it evaporates or melts away.
"It should be noted that this process is currently missing in most of SMB estimations over Antarctica as melt has been negligible until now. But the climate is changing..." Fettweis said.
Fettweis told Newsweek Antarctica has been "significantly warmer than average" this melting season. But he stressed the data is from a model, and not an in situ observation. The melting could be driven by a number of factors, and experts will need to wait two to three melting seasons to confirm what is going on.
"We have observed a crash of the Antarctica polar vortex just before this melting season," explained Fettweis, referring to low pressure near the pole. "A weaker polar vortex allows warm air masses to reach easier the ice sheet (which is usually protected by its polar vortex as it was the case the previous summer). The fact that the sea ice extent is very low also enhances the possibility of warm air masses to reach the ice sheet."
Asked whether climate change is to blame, he said: "As for most of the anomalies observed on these last months over the Earth (e.g. in Australia), the signal coming from global warming can not be ignored here."