Heat wave in Greenland
Following up on Monday’s post, here is the estimated surface air temperature anomaly yesterday over North American and the Arctic, from the site Climate Reanalyzer
“Anomaly” means this is the temperature relative to the 1980-2000 average for the time of year. The US midwest and east cost are cold, as is Siberia, but Greenland, northern Europe, and most of Russia are hot. The northern hemisphere as a whole is half a degree above average, and the Arctic is 1.7 degrees above.
This picture still requires weather models to combine weather-station and satellite measurements and extrapolate them across the globe. That’s done by NOAA’s Global Forecast System, which is a fairly uncontroversial piece of modeling.
Thomas Lumley (@tslumley) is Professor of Biostatistics at the University of Auckland. His research interests include semiparametric models, survey sampling, statistical computing, foundations of statistics, and whatever methodological problems his medical collaborators come up with. He also blogs at Biased and Inefficient See all posts by Thomas Lumley »