Abstract. In this study, we provide a comprehensive analysis of aerosol interaction with warm boundary layer clouds over the South-East Atlantic. We use and cloud parameters derived from MODIS observations, together co-located CALIPSO estimates altitudes, to derive statistical relationships between concentration properties. The products are used differentiate cases mixed cloud-aerosol layers where is located well-above top. This technique allows us obtain more reliable indirect effect than...

Aerosol interaction with clouds is the main uncertainty for quantification of anthropogenic forcing on climate. The first step so‐called “aerosol indirect effect” change cloud droplet size distribution when seeded by aerosols. Satellite data provide density and diversity observations needed a statistical estimate this effect. Numerous such studies have demonstrated correlation between aerosol load Cloud Droplet Radius (CDR) few quantified impact microphysics. Here, we go one further using...

Abstract. Up-to-date and accurate emission inventories for air pollutants are essential understanding their role in the formation of tropospheric ozone particulate matter at various temporal scales, anticipating pollution peaks identifying key drivers that could help mitigate concentrations. This paper describes Bayesian variational inverse system PYVAR-CHIMERE, which is now adapted to inversion reactive species. Complementarily with bottom-up inventories, this aims updating improving...

Abstract Environmental sustainability, social engagement and robust governance gained growing attention from consumers investors alike, leading to what we call ‘ESG finance’. ESG criteria are now shaping the behaviour choices of enterprises, consumers. Indeed laudable, increased importance finance could raise concerns about robustness underneath this new set financial products. Moreover, reliability ESG-related data information shared by companies may also be challenged due ability those...

Abstract. Present and future satellite observations offer great potential for monitoring air quality on a daily global basis. However, measurements from currently orbiting satellites do not allow single sensor to accurately probe surface concentrations of gaseous pollutants such as tropospheric ozone. Combining information IASI (Infrared Atmospheric Sounding Interferometer) GOME-2 (Global Ozone Monitoring Experiment-2) respectively in the TIR UV spectra, recent multispectral method (referred...

Abstract. We present a comprehensive study integrating satellite observations of ozone pollution, in situ measurements, and chemistry-transport model simulations for quantifying the role anthropogenic emission reductions during COVID-19 lockdown spring 2020 over Europe. Satellite are derived from IASI+GOME2 (Infrared Atmospheric Sounding Interferometer + Global Ozone Monitoring Experiment 2) multispectral synergism, which provides better sensitivity to near-surface pollution. These mainly...

Abstract. In this work we perform numerical simulations of convective gravity waves (GWs), using the WRF (Weather Research and Forecasting) model. We first run an idealized, simplified highly resolved simulation with model top at 80 km. Below 60 km altitude, a vertical grid spacing smaller than 1 is supposed to reliably resolve effects GW breaking. An eastward linear wind shear interacts field generated by single thunderstorm. After 70 min integration time, averaging within radius 300 from...

Abstract. In this study, we provide a comprehensive analysis of aerosol interaction with warm boundary layer clouds, over South-East Atlantic. We use MODIS retrievals to derive statistical relationships between concentration and cloud properties, together co-located CALIPSO estimates altitudes. The latter are used differentiate cases mixed interacting cloud-aerosol layers from where the is located well-above top. This strategy allows, certain extent, isolate real aerosol-induced effect...

Abstract. The net effect of aerosol Direct Radiative Forcing (DRF) is the balance between scattering that reflects solar radiation back to space (cooling), and absorption decreases reflected sunlight (warming). amplitude these two effects their depends on load, its absorptivity, cloud fraction respective position layers. In this study, we use information provided by CALIOP (CALIPSO satellite) MODIS (AQUA instruments as input data a Rapid Transfer Model (RRTM) quantify shortwave (SW) direct...

Abstract. Deep convection is a major atmospheric transport process in the tropics, affecting global weather and climate system. In framework of ARISE (Atmospheric dynamics Research InfraStructure Europe) project, we combine model simulations tropical deep with situ ground measurements from an IMS (International Monitoring System) infrasound station Ivory Coast to analyze effects density current propagation. The WRF (Weather Forecasting) firstly run simplified (referred as "idealized case")...

Abstract. Up-to-date and accurate emission inventories for air pollutants are essential understanding their role in the formation of tropospheric ozone particulate matter at various temporal scales, anticipating pollution peaks identifying key drivers that could help mitigate emissions. This paper describes Bayesian variational inverse system PYVAR-CHIMERE, which is adapted to inversion reactive species. Complementarily with bottom-up inventories, this aims updating improving knowledge on...

Innovation and technology have led to the redefinition of business models development new ones in many bricks mortar sectors. Similarly, blockchain fintech impacted finance banking industries are expected further affect them future, leading some media coin expression “Uberization banking”. The authors extrapolate from sharing economy conclude that while poised advance banking, there no disruptive features corroborate term. By analogy successive approximations, this article identifies...

Abstract. Present and future satellite observations offer a great potential for monitoring air quality on daily global basis. However, measurements from currently in orbit satellites do not allow using single sensor to probe accurately surface concentrations of gaseous pollutants such as tropospheric ozone (Liu et al., 2010). Using single-band approaches based spaceborne either thermal infrared radiance (TIR, Eremenko 2008) or ultraviolet reflectance (UV, Liu 2010) only down the lower...

Abstract. Deep convection is a major atmospheric transport process in the tropics, affecting global weather and climate system. In framework of ARISE (Atmospheric dynamics Research InfraStructure Europe) project, we combine model simulations tropical deep with in-situ ground measurements, from IMS (International Monitoring System) infrasound station Ivory Coast, to analyse effects density current propagation. The WRF (Weather Forecasting) firstly run simplified (referred as "idealized case")...

Abstract. We present a comprehensive study integrating satellite observations of ozone pollution, in situ measurements and chemistry transport model simulations for quantifying the role anthropogenic emission reductions during COVID-19 lockdown spring 2020 over Europe. Satellite are derived from IASI+GOME2 multispectral synergism, which provides particularly enhanced sensitivity to near-surface pollution. These first analysed terms differences between average on 1–15 April 2020, when...