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 using satellite and ground-based station data. They demonstrated the ability of the IASI instruments to detect simultaneously the stratospheric warming and the evolution of the ozone and nitric acid total columns. In particular, due to the warming, very little ozone destruction took place in 2019, leading to high ozone columns, and to the smallest recorded ozone hole over Antarctica since IASI observations began.

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Homogeneous temperature data record derived from 13 years of IASI data using an artificial neural network

Bouillon et al. (2022) recently designed a neural network to retrieve atmospheric temperatures from the IASI radiance data. This new temperature data record is validated against other datasets and a good agreement is shown. Trends were computed from this new temperature dataset over the 2008–2020 period. A general warming of the troposphere, more important at […]

05.04.2022

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Humidity levels to determine future liveability in the Arabian Peninsula

Human survivability in hot regions does not depend only on temperature, but also on humidity levels in ambient air. In fact, the body’s ability to shed heat is diminished when the air around it is saturated with humidity. The wet bulb temperature (also called heat stress) is the temperature of the air when it is […]

25.03.2022

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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 climate phenomena (in particular El Niño) on the surface and atmospheric temperature and atmospheric composition. More interesting from a longer-term climate monitoring perspective, they were […]

25.11.2021

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