The Infrared Atmospheric Sounding Interferometer (IASI) consists of a Fourier Transform Spectrometer with an imaging system. It is based on a Michelson Interferometer and is designed to measure the infrared spectrum emitted by the earth.

IASI provides infrared soundings of the temperature profiles in the troposphere and lower stratosphere, moisture profiles in the troposphere, as well as some of the chemical components playing a key role in the climate monitoring, global change and atmospheric chemistry.

View Trace Gas (CH4, CO, CO2 and N2O) data


If you would like access to the raw data that we have used to generate these charts please view our Datasets page.