Clémence Rose
A5018938529- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Air Quality and Health Impacts
- Marine and coastal ecosystems
- Air Quality Monitoring and Forecasting
- Ocean Acidification Effects and Responses
- Atmospheric and Environmental Gas Dynamics
- Maritime Transport Emissions and Efficiency
- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Spaceflight effects on biology
- Animal Behavior and Reproduction
- Methane Hydrates and Related Phenomena
- Liver Disease Diagnosis and Treatment
- nanoparticles nucleation surface interactions
- Water Quality and Pollution Assessment
- Diet and metabolism studies
- Advanced Chemical Sensor Technologies
- Antimicrobial Peptides and Activities
- Water Quality Monitoring and Analysis
- Spider Taxonomy and Behavior Studies
- Catalytic Processes in Materials Science
- Industrial Gas Emission Control
- Cardiovascular and Diving-Related Complications
Laboratoire de Météorologie Physique
2015-2025
Université Clermont Auvergne
2014-2025
Centre National de la Recherche Scientifique
2015-2025
Aarhus University
2023
Université Paris-Saclay
2022-2023
University of Helsinki
2013-2020
Observatoire de Physique du Globe de Clermont-Ferrand
2013-2020
Helsinki Institute of Physics
2013-2017
Otto-von-Guericke University Magdeburg
2006
James Madison University
2005
Atmospheric aerosol formation from biogenic vapors is strongly affected by air pollutants, like NO x , SO 2 and NH 3 .
Abstract New particle formation in the Arctic atmosphere is an important source of aerosol particles. Understanding processes secondary crucial due to their significant impact on cloud properties and therefore amplification. We observed molecular new particles from low‐volatility vapors at two sites with differing surroundings. In Svalbard, sulfuric acid (SA) methane sulfonic (MSA) contribute some extent condensation nuclei (CCN). This occurs via ion‐induced nucleation SA NH 3 subsequent...
Abstract. Aerosol particles are essential constituents of the Earth's atmosphere, impacting earth radiation balance directly by scattering and absorbing solar radiation, indirectly acting as cloud condensation nuclei. In contrast to most greenhouse gases, aerosol have short atmospheric residence times, resulting in a highly heterogeneous distribution space time. There is clear need document this variability at regional scale through observations involving, particular, situ near-surface...
A substantial fraction of aerosols, which affect air quality and climate, is formed from gaseous precursors. Highly oxygenated organic molecules (HOMs) are essential to grow the newly particles have been evidenced initiate ion-induced nucleation in chamber experiments absence sulfuric acid. We investigate this phenomenon real atmosphere using an extensive set state-of-the-art ion mass spectrometers deployed a boreal forest environment. show that within few hours around sunset, HOMs resulting...
NO x is important for particle growth as it can participate in HOM formation and alter the volatility distribution.
Abstract. The measurement of sub-3 nm aerosol particles is technically challenging. Therefore, there a lack knowledge about the concentrations atmospheric and their variation in different environments. In this study, ∼ 1–3 measured with particle size magnifier (PSM) were investigated at nine sites around world. Sub-3 highest strong anthropogenic influence. boreal forest, clearly higher summer than winter, suggesting importance biogenic precursor vapors environment. At all sites, had daytime...
Abstract. Nucleation of atmospheric vapours produces more than half global cloud condensation nuclei and so has an important influence on climate. Recent studies show that monoterpene (C10H16) oxidation yields highly oxygenated products can nucleate with or without sulfuric acid. Monoterpenes are emitted mainly by trees, frequently together isoprene (C5H8), which the highest emission all organic vapours. Previous have shown suppresses new-particle formation from monoterpenes, but cause this...
Abstract. Global models predict that new particle formation (NPF) is, in some environments, responsible for a substantial fraction of the total atmospheric number concentration and subsequently contributes significantly to cloud condensation nuclei (CCN) concentrations. NPF events were frequently observed at highest observatory world, on Chacaltaya (5240 m a.s.l.), Bolivia. The present study focuses impact CCN population. Neutral cluster Air Ion Spectrometer mobility size spectrometer...
Abstract Dimethyl sulphide (DMS) and methanethiol (MeSH) emissions from South Pacific surface seawater were determined in deck board Air‐Sea Interface Tanks during the Sea2Cloud voyage March 2020. The measured fluxes water to headspace (F) varied with mass type, lowest observed Subtropical Subantarctic waters highest Frontal waters. Measured DMS consistent calculated using a two‐layer model concentrations. MeSH:DMS flux ratio was 11%–18% across three types, confirming that MeSH may represent...
Abstract. While the role of highly oxygenated molecules (HOMs) in new particle formation (NPF) and secondary organic aerosol (SOA) is not dispute, interplay between HOM chemistry atmospheric conditions continues to draw significant research attention. During Influence Biosphere-Atmosphere Interactions on Reactive Nitrogen budget (IBAIRN) campaign September 2016, profile measurements neutral HOMs below above forest canopy were performed for first time at boreal SMEAR II station. The...
Abstract. For the last 25 years, CO-PDD (Cézeaux-Aulnat-Opme-puy de Dôme) has evolved to become a full instrumented platform for atmospheric research. It received credentials as national observing in France and is internationally recognized global station GAW (Global Atmosphere Watch) network. reference site of European research infrastructures ACTRIS (Aerosol Cloud Trace gases Research Infrastructure) ICOS (Integrated Carbon Observing System). The located on top puy Dôme mountain (1465 m...
Abstract. Aerosol particles are a complex component of the atmospheric system which influence climate directly by interacting with solar radiation, and indirectly contributing to cloud formation. The variety their sources, as well multiple transformations they may undergo during transport (including wet dry deposition), result in significant spatial temporal variability properties. Documenting this is essential provide proper representation aerosols condensation nuclei (CCN) models. Using...
Abstract. Cloud condensation nuclei (CCN) size distributions and numbers were measured for the first time at Puy-de-Dôme high altitude (1465 m a.s.l) site in Central France. Majority of measurements done constant supersaturation (SS) 0.24%, which was also deduced to be representative typical in-cloud SS site. CCN during summer ranged from about 200 up 2000 cm−3 winter 50 3000 cm−3. Variability number explained by both particle chemistry distribution variability. The higher concentrations...
Abstract. The effect of ocean acidification and changing water conditions on primary (and secondary) marine aerosol emissions is not well understood a regional or global scale. To investigate this as the indirect that biogeochemical parameters can have, ~ 52 m3 pelagic mesocosms were deployed for several weeks in Mediterranean Sea during both winter pre-bloom summer oligotrophic subjected to various levels CO2 simulate foreseen region coming decades. After seawater sampling, bubble-bursting...
Abstract. The formation of new aerosol particles in the atmosphere is a key process influencing number concentration as well climate, particular at high altitude, where newly formed directly influence cloud formation. However, free tropospheric particle (NPF) poorly documented due to logistic limitations and complex atmospheric dynamics around high-altitude stations that make observation this day-time challenging. Recent improvements measurement techniques now possible detection neutral...
Abstract. New particle formation (NPF) provides a large source of atmospheric aerosols, which affect the climate and human health. In recent chamber studies, ion-induced nucleation (IIN) has been discovered as an important pathway forming particles; however, investigation remains incomplete. For this study, we investigated air anion compositions in boreal forest southern Finland for three consecutive springs, with special focus on H2SO4-NH3 clusters. We found that ratio between...
Abstract One pathway by which the oceans influence climate is via emission of sea spray that may subsequently cloud properties. Sea emissions are known to be dependent on atmospheric and oceanic physicochemical parameters, but potential role ocean biology fluxes remains poorly characterized. Here we show a consistent significant relationship between seawater nanophytoplankton cell abundances sea-spray derived Cloud Condensation Nuclei (CCN) number fluxes, generated using water from three...
Abstract. A new detailed aqueous phase mechanism named the Cloud Explicit Physico-chemical Scheme (CLEPS 1.0) is proposed to describe oxidation of water soluble organic compounds resulting from isoprene oxidation. It based on structure activity relationships (SARs) which provide global rate constants together with branching ratios for HO⋅ abstraction and addition atmospheric compounds. The GROMHE SAR allows evaluation Henry's law undocumented This coupled MCM v3.3.1 gas through a mass...
Abstract. While atmospheric new particle formation (NPF) has been observed in various environments and was found to contribute significantly the total aerosol concentration, production of particles over open seas is poorly documented literature. Nucleation events were detected analysed Mediterranean Sea using two condensation counters a scanning mobility sizer on board ATR-42 research aircraft during flights conducted between 11 September 4 November 2012 framework HYMEX (HYdrological cycle...
Abstract Earth, as a whole, can be considered living organism emitting gases and particles into its atmosphere, in order to regulate own temperature. In particular, oceans may respond climate change by that ultimately will influence cloud coverage. At the global scale, large fraction of aerosol number concentration is formed nucleation gas‐phase species, but this process has never been directly observed above oceans. Here we present, using semicontrolled seawater‐air enclosures, evidence...
Abstract. Over the last two decades, new particle formation (NPF), i.e., of clusters from gas-phase compounds followed by their growth to 10–50 nm size range, has been extensively observed in atmosphere at a given location, but spatial extent rarely assessed. In this work, we use aerosol distribution measurements performed simultaneously Ersa (Corsica) and Finokalia (Crete) over 1-year period analyze occurrence NPF events Mediterranean area. The geographical location these sites, as well...