Influence of the Saharan heat low on the North Atlantic humidity budget deduced from IASI isotopic observations

δD (isotopic ratio of HDO to H2O) observations derived from IASI measurements above the North Atlantic reveal the influence of the surface heating over Sahara in controlling the humidity budget above the Atlantic Lacour et al. (2017). The added information contained in the isotopic ratio of water vapour allows to clearly distinguish between three different sources of water vapour and their interactions. This is the first time such detailed water isotopic ratio maps are realized thank to IASI sampling.

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Trends in spectrally resolved outgoing longwave radiation from 10 years of satellite measurements

By analyzing the changes in the spectrally resolved Earth’s Outgoing Longwave Radiation (OLR) from 10 years of daily IASI observations, Whitburn et al. (2021) have highlighted the impact of large […]



Smallest 2019 ozone hole ever recorded by IASI over Antarctica

While sudden stratospheric warming (SSW) events are more common in the Northern Hemisphere, Safieddine et al. (2020) investigated the rare SSW event in the Southern Hemisphere that occurred in 2019 […]



Contribution of ammonia to the formation of fine particulate matter over Paris

The Paris megacity faces frequent fine particulate matter (PM2.5) pollution episodes in spring. At this period of the year, large numbers of the particles consist of ammonium sulfate and nitrate […]