A5007242735- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Meteorological Phenomena and Simulations
- Atmospheric and Environmental Gas Dynamics
- Air Quality Monitoring and Forecasting
- Wind and Air Flow Studies
- Atmospheric Ozone and Climate
- Air Quality and Health Impacts
- Spectroscopy and Laser Applications
- Remote Sensing and LiDAR Applications
- Vehicle emissions and performance
- Odor and Emission Control Technologies
- Aeolian processes and effects
- Climate variability and models
- Laser Design and Applications
- Urban Heat Island Mitigation
- Optical and Acousto-Optic Technologies
- Laser-Matter Interactions and Applications
- Laser Material Processing Techniques
- Oil Spill Detection and Mitigation
- Environmental Policies and Emissions
- Remote Sensing in Agriculture
- Advanced Fiber Laser Technologies
- Thermography and Photoacoustic Techniques
- Photonic and Optical Devices
Laboratoire de Physico-Chimie de l'Atmosphère
2014-2024
Université du littoral côte d'opale
2003-2024
Institute of Numerical Mathematics
2020
Russian Academy of Sciences
2020
Moscow Institute of Physics and Technology
2020
Centre National de la Recherche Scientifique
1993-2016
Université Lille Nord de France
2009-2016
Université de Lille
2009-2014
Météo-France
2009
Laboratoire du Futur
2009
Abstract. Due to the major role of sun in heating earth's surface, atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, period day that connects daytime dry convective night-time stable layer, still has number unanswered scientific questions. This phase cycle challenging from both modelling and observational perspectives: it transitory, most forcings are small or null turbulence regime changes fully convective, close homogeneous...
The Alaskan Layered Pollution And Chemical Analysis (ALPACA) field experiment was a collaborative study designed to improve understanding of pollution sources and chemical processes during winter (cold climate low-photochemical activity), investigate indoor pollution, dispersion as affected by frequent temperature inversions. A number the research goals were motivated questions raised residents Fairbanks, Alaska, where held. This paper describes measurement strategies conditions encountered...
Abstract. This paper presents a new application of assimilating lidar signals to aerosol forecasting. It aims at investigating the impact ground-based network on analysis and short-term forecasts aerosols through case study in Mediterranean basin. To do so, we employ data assimilation (DA) algorithm based optimal interpolation method developed Polair3D chemistry transport model (CTM) Polyphemus air quality modelling platform. We assimilate hourly averaged normalised range-corrected (PR2)...
In the French Mediterranean basin large city of Marseille and its industrialized suburbs (oil plants in Fos‐Berre area) are major pollutant sources that cause frequent hazardous pollution episodes, especially summer when intense solar heating enhances photochemical activity sea breeze circulation redistributes pollutants farther north countryside. This paper summarizes findings 5 years research on southern France related mesoscale transport dilution within Field Experiment to Constraint...
Abstract This study investigates the occurrence and characteristics of low‐level jets (LLJs) up to 200 m above sea level in North Sea area, specifically southernmost part basin, at entrance English Channel. Using a short‐range Doppler lidar installed Dunkerque Port, on northern coast France, wind profiles were recorded for 4 years analyzed statistically. LLJs detected more than 11,000 10‐min average (5% time), with similar jet core height speed distributions as other sites southern annual...
Despite recent advancements in technology and purification techniques, industrial pollution continues to pose significant challenges terms of human exposure monitoring air quality close sources. Optimizing networks integrating them with advanced spatiotemporal statistical methods is thus essential for effective atmospheric contamination.This study addresses the problem optimizing placement sensors measuring at urban regional scales. Several global optimization including GlobalSearch...
Low-level jets (LLJs) are fast-moving air streams in the lower part of troposphere, characterized by wind maxima and shear typically occurring at same level as turbine rotors. Technological advances have enabled design taller more efficient turbines, making LLJs higher altitudes potentially significant for their performance. Evaluating LLJ characteristics understanding formation mechanisms is essential accurately assessing loads power production.In this context, three years profiles obtained...
Over the last 30 years, demand for wind profile observations in lower troposphere has rocketed, carried by weather agencies, airports and energy industry. Doppler lidars are favoured their compactness, easiness of operation, versatility scanning strategy. Several methods have been developed to reconstruct horizontal from raw radial recorded different directions. The most common is Beam Swinging (DBS) technique, which implemented commercial software. However, DBS leaves a blind zone near...
Abstract. We study the influence of large-scale atmospheric contribution to dynamics convective boundary layer (CBL) in a situation observed during Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) field campaign. employ two modeling approaches, mixed-layer theory large-eddy simulation (LES), with complete data set surface upper-air observations, quantify contributions advection heat moisture, subsidence. find that by only taking entrainment fluxes into account, boundary-layer...
Terpenoids have long been known to originate from natural sources. However, there is growing evidence for emissions anthropogenic activities in cities, particular the production, manufacturing, and use of household solvents. Here, as part DATAbASE (Do Anthropogenic mAtter AtmoSpheric chEmistry?) project, we investigate first time potential role industrial on terpenoid burden urban atmosphere. This study based continuous VOC observations an intensive field campaign conducted July 2014 at...
More than a thousand Doppler lidars are already deployed in the world for wind energy or airport safety applications. Although such instruments optimized measurements, if they could also be qualified aerosol observations, would provide cheap and immediately accessible large database, which open perspectives pollutant dispersion studies. A scanning lidar was 8 months Dunkerque, 200,000 inhabitants harbor city northern France. The performed horizontal scans to acquire collocated observations...
Three atmospheric boundary layer (ABL) schemes and two land surface models that are used in the Weather Research Forecasting (WRF) model, version 3.4.1, were evaluated with numerical simulations by using data from north coast of France (Dunkerque). The ABL YSU (Yonsei University), ACM2 (Asymmetric Convective Model 2), MYJ (Mellor–Yamada–Janjic) combined models, Noah RUC (Rapid Update Cycle), order to determine performances under sea-breeze conditions. Particular attention is given...
Abstract. Due to the major role of sun in heating earth's surface, atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, period day that connects daytime dry convective night-time stable layer, still raises several scientific issues. This phase cycle challenging from both modeling and observational perspectives: it transitory, most forcings are small or null turbulence regime changes fully regime, close homogeneous isotropic, toward...