Methane levels for this period are at record highs in the Barents and Norwegian Seas, i.e. the highest levels ever recorded by IASI, which is is short for Infrared Atmospheric Sounding Interferometer, a Fourier transform spectrometer on board the European EUMETSAT Metop satellite that has supplied data since 2007.
The record levels are indicated on the image below at the top right, while the geographical location of the four domains distinguished in the image are illustrated on the image further below.
