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Holger Baars, Moritz Haarig, Leonard König, Dave Donovan et autres
At the end of May 2025, extremely strong wildfires in Canada produced several pyrocumulonimbus clouds which lifted wildfire smoke particles up to the lower stratosphere (> 10 km height). A dense stratospheric smoke plume developed which reached stratospheric aerosol optical depths up …
de, nl, fr, ca, gb (code pays fourni par la source)
Sergey Khaykin, Oceane Soares, Nicolas Kadygrov, M. Sicard et autres
ESA’s EarthCARE satellite mission launched in May 2024 and carrying Atmospheric LIDar (ATLID) provides high-resolution vertical profiling of aerosols and clouds at 355 nm. Fully operational since August 2024, ATLID has been witness to a significant perturbation of stratospheric aerosol budget following …
fr, re, us, ru, jp, nz (code pays fourni par la source)
Oceane Soares, Sergey Khaykin, Sophie Godin-beekmann, Nikolay Kadygrov
Volcanic eruptions and extreme wildfires produce stratospheric aerosol plumes with distinct optical properties and lifetimes. Here we analyze the evolution of volcanic and wildfire aerosols using Level-2 aerosol layer products from the CALIOP (CALIPSO) and ATLID (EarthCARE) spaceborne lidars.The analysis is based …
fr (code pays fourni par la source)
Adam Bourassa, Sergey Khaykin, Valentina Aquila, Alexandre Baron et autres
This talk presents the highlights of the third chapter of the APARC Hunga Volcanic Eruption Atmospheric Impacts Report. The study focuses on the global meridional and vertical evolution of the Hunga sulphate aerosols and water vapour after the full zonal dispersion of …
ca, fr, us, de (code pays fourni par la source)
Valentina Aquila, Rei Ueyama, Adam Bourassa, Sergey Khaykin et autres
The eruption of the Hunga volcano on January 15, 2022, was unprecedented in the satellite record because of the ~150 Tg of water injected in the stratosphere, paired to a relatively low (~0.5 Tg) sulfur dioxide injection. The uniqueness of this eruption …
us, ca, fr, de (code pays fourni par la source)
Samuel Kristoffersen, Constantino Listowski, Ulrich Achatz, Georg-Sebastian Völker et autres
Infrasound signals are generated by various anthropogenic and natural sources, and are one of the technologies used in monitoring compliance with the Comprehensive Nuclear-Test Ban Treaty (CTBT). It is, therefore, of interest to study and better understand the impacts of atmospheric parameters, …
il, de, cz, fr (code pays fourni par la source)
Florian Mandija, Philippe Keckhut, Dunya Alraddawi, Abdanour Irbah et autres
We present an automated procedure that combines lidar measurements, ADS-B flight tracks and ECMWF ERA5 meteorological data to detect and characterise nighttime aircraft contrails. Measurements have been carried out at the Observatory of Haute-Provence (OHP) in France. Lidar scattering-ratio profiles were processed …
fr (code pays fourni par la source)
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