A5037370718- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Railway Engineering and Dynamics
- Atmospheric aerosols and clouds
- Structural Behavior of Reinforced Concrete
- Vibration and Dynamic Analysis
- Structural Engineering and Vibration Analysis
- Structural Load-Bearing Analysis
- Wood Treatment and Properties
- Civil and Geotechnical Engineering Research
- Geotechnical Engineering and Underground Structures
- Structural Response to Dynamic Loads
- Structural Health Monitoring Techniques
- Structural Analysis of Composite Materials
- Concrete Corrosion and Durability
- Mechanical Behavior of Composites
- Structural Analysis and Optimization
- Aeolian processes and effects
- Innovative concrete reinforcement materials
- Innovations in Concrete and Construction Materials
- Calibration and Measurement Techniques
- Fire effects on concrete materials
Université Paris Cité
2014-2025
Centre National de la Recherche Scientifique
2016-2025
Laboratoire Interuniversitaire des Systèmes Atmosphériques
2015-2025
Laboratoire Techniques, Territoires et Sociétés
2015-2025
Université Paris-Est Créteil
2015-2025
Laboratoire Navier
2015-2024
École nationale des ponts et chaussées
2015-2024
Université Gustave Eiffel
2020-2023
Institut Pierre-Simon Laplace
2013-2023
ParisTech
2023
The Tropospheric Ozone Assessment Report (TOAR) is an activity of the International Global Atmospheric Chemistry Project. This paper a component report, focusing on present-day distribution and trends tropospheric ozone relevant to climate global atmospheric chemistry model evaluation. Utilizing TOAR surface database, several figures present daytime average at 2702 non-urban monitoring sites, highlighting regions seasons world with greatest levels. Similarly, ozonesonde commercial aircraft...
Abstract. This paper describes the pre-operational analysis and forecasting system developed during MACC (Monitoring Atmospheric Composition Climate) continued in MACC-II Climate: Interim Implementation) European projects to provide air quality services for continent. is based on seven state-of-the art models run Europe (CHIMERE, EMEP, EURAD-IM, LOTOS-EUROS, MATCH, MOCAGE SILAM). These are used calculate multi-model ensemble products. The gives an overall picture of its status at end (summer...
From the earliest observations of ozone in lower atmosphere 19th century, both measurement methods and portion globe observed have evolved changed. These different uncertainties biases, data records differ with respect to coverage (space time), information content, representativeness. In this study, various datasets are reviewed selected for inclusion historical record background levels, based on relationship technique modern UV absorption standard, absence interfering pollutants,...
Abstract. We present a comparison of tropospheric NO2 from OMI measurements to the median an ensemble Regional Air Quality (RAQ) models, and intercomparison contributing RAQ models two global for period July 2008–June 2009 over Europe. The model forecasts were produced routinely on daily basis in context European GEMS ("Global regional Earth-system (atmosphere) Monitoring using Satellite in-situ data") project. vertical column shows spatial distribution which agrees well with observations,...
Abstract. We present a new multispectral approach for observing lowermost tropospheric ozone from space by synergism of atmospheric radiances in the thermal infrared (TIR) observed IASI (Infrared Atmospheric Sounding Interferometer) and earth reflectances ultraviolet (UV) measured GOME-2 (Global Ozone Monitoring Experiment-2). Both instruments are onboard series MetOp satellites (in orbit since 2006 expected until 2022) their scanning capabilities offer global coverage every day, with...
First partial tropospheric ozone columns (0–6 km) derived from radiances observed by the IASI instrument aboard MetOp‐A platform over Europe during summer 2007 are presented. They were retrieved using an altitude‐dependent regularization method. Comparison with measurements balloon sondes shows excellent agreement. Space‐borne observations show large lower amounts South‐Eastern heat wave period, which also displayed simulations a regional chemistry‐transport model CHIMERE.
Abstract. Air pollution reaching hazardous levels in many Chinese cities has been a major concern China over the past decades. New policies have applied to regulate anthropogenic pollutant emissions, leading changes atmospheric composition and particulate matter (PM) production. Increasing of ammonia columns observed by satellite during recent years. In particular, observations from Infrared Atmospheric Sounding Interferometer (IASI) reveal an increase these 15 % 65 2011 2013 2015,...
Abstract. We characterise a transboundary ozone pollution outbreak transported across East Asia in early May 2009 using new multispectral satellite observations of lowermost tropospheric (located below 3 km altitude) synergy with other data and models. Our analysis is focused on the daily evolution plumes initially formed over North China Plain (NCP) their transport pathways northern China, Korea, Japan surrounding seas. A main aspect study an estimation contribution photochemical production...
Abstract. The Mediterranean basin is one of the most sensitive regions in world regarding climate change and air quality. This partly due to singular dynamical situation that leads tropospheric-ozone concentrations are among highest over Northern Hemisphere. Six years summertime tropospheric ozone observed by Infrared Atmospheric Sounding Interferometer (IASI) instrument from 2007 2012 have been analysed document variability this region. satellite observations examined together with...
Abstract. An ensemble Kalman filter (EnKF) has been coupled to the CHIMERE chemical transport model in order assimilate ozone ground-based measurements on a regional scale. The number of ensembles is reduced 20, which allows for future operational use system air quality analysis and forecast. Observation sites European monitoring network have classified using criteria temporal variability, based previous work by Flemming et al. (2005). This leads choice specific subsets suburban, rural...
Abstract Ammonia (NH 3 ), whose main source in the troposphere is agriculture, an important gaseous precursor of atmospheric particulate matter (PM). We derived daily ammonia emissions using NH total columns measured from Infrared Atmospheric Sounding Interferometer (IASI) on board Metop‐A, at a relatively high spatial resolution (grid cell 0.5° × 0.5°). During European spring haze episodes 24–31 March 2012 and 8–15 2014, IASI reveals column magnitudes highlighting higher over central Europe...
In this paper, we present passive and active remote sensing measurements of atmospheric aerosols over the North Indian Ocean (NIO) during Intensive Field Phase (IFP, January to March 1999) Experiment. The variability aerosol load NIO is discussed based on three‐dimentional numerical simulations made at a local scale by use Regional Atmospheric Modeling System (RAMS) regional using zoomed Laboratoire de Météorologie Dynamique global circulation model (LMD‐Z version 3.3). Ground‐based columnar...
Abstract. Partial lower tropospheric ozone columns provided by the IASI (Infrared Atmospheric Sounding Interferometer) instrument have been assimilated into a chemistry-transport model at continental scale (CHIMERE) using an Ensemble Square Root Kalman Filter (EnSRF). Analyses are made for month of July 2007 over European domain. Launched in 2006, aboard MetOp-A satellite, shows high sensitivity free troposphere and low ground; therefore it is important to evaluate if assimilation these...
Abstract. China is a highly polluted region, particularly the North Plain (NCP). However, emission reductions have been occurring in for about last 10 years; these reduction measures effect since 2006 SO2 emissions and 2010 NOx emissions. Recent studies shown decrease NO2 tropospheric column 2013 that has attributed to Quantifying how translate regarding ozone concentrations remains unclear due apparent inconsistencies between surface satellite observations. In this study, we use lower (LT)...
• Study of an intense winter episode particulate pollution in the Paris region. Exceptional stagnant conditions explain highest concentrations. Organic matter local origin dominates chemical composition particles with also a strong nitrate component from traffic. Significant values oxidative potential are observed.
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...