Redha Belhadji
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View article: Early evolution of the ozone mini-hole generated by the Australian bushfires 2019–2020 observed from satellite and ground-based instruments
Early evolution of the ozone mini-hole generated by the Australian bushfires 2019–2020 observed from satellite and ground-based instruments Open
The intense wildfires in Australia, during the 2019–2020 fire season, generated massive pyro-cumulonimbus (pyro-Cb) clouds, and injected an unprecedented amount of smoke aerosols into the upper troposphere–lower stratosphere (UTLS). The sm…
View article: The optical properties of the stratospheric aerosol layer perturbation of the Hunga Tonga–Hunga Ha'apai volcano eruption of 15 January 2022
The optical properties of the stratospheric aerosol layer perturbation of the Hunga Tonga–Hunga Ha'apai volcano eruption of 15 January 2022 Open
The Hunga Tonga–Hunga Ha'apai volcano violently erupted on 15 January 2022 and produced the largest stratospheric aerosol layer perturbation of the last 30 years. In comparison to background conditions and other recent moderate stratospher…
View article: Early evolution of the ozone mini-hole generated by the Australian bushfires 2019–2020 observed from satellite and ground-based instruments
Early evolution of the ozone mini-hole generated by the Australian bushfires 2019–2020 observed from satellite and ground-based instruments Open
The intense wildfires in Australia, during the 2019–2020 fire season, generated massive Pyro-cumulonimbus (pyro-Cb) clouds, and injected an unprecedented amount of smoke aerosols into the upper troposphere–lower stratosphere (UTLS). The sm…
View article: The role of mesoscale structures in the disturbance of the stratosphere by two major events in 2020 and 2022
The role of mesoscale structures in the disturbance of the stratosphere by two major events in 2020 and 2022 Open
High-explosivity volcanic eruptions and extreme-intensity fires can inject pollutants into the upper troposphere and stratosphere (UTS), generating persistent disturbances of its composition and of the stratospheric aerosol layer, affectin…
View article: Observing the SO<sub>2</sub> and Sulfate Aerosol Plumes From the 2022 Hunga Eruption With the Infrared Atmospheric Sounding Interferometer (IASI)
Observing the SO<sub>2</sub> and Sulfate Aerosol Plumes From the 2022 Hunga Eruption With the Infrared Atmospheric Sounding Interferometer (IASI) Open
The Hunga volcano violently erupted on 15 January 2022, producing the largest perturbation of the stratospheric aerosol layer since Pinatubo 1991, despite the initially estimated modest injection of SO 2 . This study presents novel SO 2 an…
View article: The optical properties of stratospheric aerosol layer perturbation of the Hunga volcano eruption of January 15th, 2022
The optical properties of stratospheric aerosol layer perturbation of the Hunga volcano eruption of January 15th, 2022 Open
The Hunga volcano violently erupted on January 15th, 2022, and produced the largest stratospheric aerosol layer perturbation of the last 30 years. One notable effect of the Hunga eruption was the significant modification of the size distri…
View article: An ozone mini-hole associated with the record-breaking Australian bushfires 2019-2020: &#160;ERA5 modelling and the modelled impact on surface ultraviolet radiation
An ozone mini-hole associated with the record-breaking Australian bushfires 2019-2020:  ERA5 modelling and the modelled impact on surface ultraviolet radiation Open
The Australian record-breaking bushfires around the turn of the year 2020 generated an unprecedented perturbation of the stratospheric composition through the injection of biomass burning material at relatively high altitudes in the upper-…
View article: The radiative impact of the 2022 Hunga Tonga-Hunga Ha&#8217;apai stratospheric eruption: a 2-year perspective
The radiative impact of the 2022 Hunga Tonga-Hunga Ha’apai stratospheric eruption: a 2-year perspective Open
The underwater Hunga Tonga-Hunga Ha’apai (HTHH) volcano erupted in the early hours of 15th January 2022 and injected volcanic gases and aerosols to over 50 km altitude. This eruption produced the largest global perturbation of …
View article: Radiative impacts of the Australian bushfires 2019–2020 – Part 2: Large-scale and in-vortex radiative heating
Radiative impacts of the Australian bushfires 2019–2020 – Part 2: Large-scale and in-vortex radiative heating Open
Record-breaking wildfires ravaged south-eastern Australia during the fire season 2019–2020. The intensity of the fires reached its paroxysmal phase at the turn of the year 2019–2020, when large pyro-cumulonimbi developed. Pyro-convective a…
View article: Observation of the Aerosol Plume From the 2022 Hunga Tonga—Hunga Ha'apai Eruption With SAGE III/ISS
Observation of the Aerosol Plume From the 2022 Hunga Tonga—Hunga Ha'apai Eruption With SAGE III/ISS Open
The Tonga eruption of 15 January 2022 has released a long‐lived stratospheric plume of sulfate aerosols. More than 17 months after, we focus on the high quality data series of SAGE III (Stratospheric Aerosol and Gas Experiment) on board th…
View article: Observing the SO2 and Sulphate Aerosol Plumes from the 2022 Hunga Tonga-Hunga Ha'apai Eruption with IASI
Observing the SO2 and Sulphate Aerosol Plumes from the 2022 Hunga Tonga-Hunga Ha'apai Eruption with IASI Open
The Hunga Tonga-Hunga Ha’apai volcano violently erupted on 15 January 2022, producing the largest perturbation of the stratospheric aerosol layer since Pinatubo 1991, despite the estimated modest injection of SO2. Here we present novel SO2…
View article: Comment on egusphere-2023-1067
Comment on egusphere-2023-1067 Open
Abstract. Record-breaking wildfires ravaged south-eastern Australia during the fire season 2019–2020. The intensity of the fires reached its paroxysmal phase at the turn of the year 2019–2020, when large pyro-cumulonimbi developed. Pyro-co…
View article: Observation of the aerosol plume from the 2022 Hunga Tonga - Hunga Ha’apai eruption with SAGE III/ISS
Observation of the aerosol plume from the 2022 Hunga Tonga - Hunga Ha’apai eruption with SAGE III/ISS Open
The Tonga eruption of 15 January 2022 has released a long-lived stratospheric plume of sulfate aerosols. More than 15 months after, we focus on the high quality data series of SAGE III/ISS to determine the mean radius and size distribution…
View article: Radiative impacts of the Australian bushfires 2019–2020 – Part 2: Large-scale and in-vortex radiative heating
Radiative impacts of the Australian bushfires 2019–2020 – Part 2: Large-scale and in-vortex radiative heating Open
Record-breaking wildfires ravaged south-eastern Australia during the fire season 2019–2020. The intensity of the fires reached its paroxysmal phase at the turn of the year 2019–2020, when large pyro-cumulonimbi developed. Pyro-convective a…
View article: The Hunga Tonga-Hunga Ha’apai stratospheric eruption of 15th January 2022: a global warming volcanic plume?
The Hunga Tonga-Hunga Ha’apai stratospheric eruption of 15th January 2022: a global warming volcanic plume? Open
The underwater Hunga Tonga-Hunga Ha’apai volcano erupted in the early hours of 15th January 2022 and injected volcanic gases and aerosols to over 50 km altitude. In this talk, we synthesise satellite, ground-based, in situ and …
View article: An ozone mini-hole associated with the record-breaking Australian bushfires 2019-2020: satellite observations and the modelled impact on surface ultraviolet radiation
An ozone mini-hole associated with the record-breaking Australian bushfires 2019-2020: satellite observations and the modelled impact on surface ultraviolet radiation Open
The Australian record-breaking bushfires around the turn of the year 2020 generated an unprecedented perturbation of thestratospheric composition through the injection of biomass burning material at relatively high altitudes in the upper-t…
View article: Radiative impacts of the Australian bushfires 2019–2020 – Part 1: Large-scale radiative forcing
Radiative impacts of the Australian bushfires 2019–2020 – Part 1: Large-scale radiative forcing Open
As a consequence of extreme heat and drought, record-breaking wildfires developed and ravaged south-eastern Australia during the fire season 2019–2020. The fire strength reached its paroxysmal phase at the turn of the year 2019–2020. Durin…
View article: The unexpected radiative impact of the Hunga Tonga eruption of January 15th, 2022
The unexpected radiative impact of the Hunga Tonga eruption of January 15th, 2022 Open
The underwater Hunga Tonga-Hunga Ha-apai (HT) volcano violently erupted on January 15th, 2022, injecting volcanic gases and aerosols at over 50 km altitude. Here we show the stratospheric aerosol and water vapour perturbations due to the H…
View article: Comment on egusphere-2022-42
Comment on egusphere-2022-42 Open
Abstract. As a consequence of extreme heat and drought, record-breaking wildfires developed and ravaged south-eastern Australia during the fire season 2019–2020. The fire strength reached its paroxysmal phase at the turn of the year 2019–2…
View article: Radiative impacts of the Australian bushfires 2019–2020 – Part 1: Large-scale radiative forcing
Radiative impacts of the Australian bushfires 2019–2020 – Part 1: Large-scale radiative forcing Open
As a consequence of extreme heat and drought, record-breaking wildfires developed and ravaged south-eastern Australia during the fire season 2019–2020. The fire strength reached its paroxysmal phase at the turn of the year 2019–2020. Durin…