F. Solmon's research while affiliated with French National Centre for Scientific Research and other places

Publications (122)

Article
Over the last few decades, there have been substantial changes in sectoral anthropogenic emissions over India, modifying the region’s air quality and radiation budget. However, these sectoral contributions are still poorly understood. This study attempts to estimate the anthropogenic aerosols and SO 2 emissions from different sectors over the India...
Article
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The West African Monsoon (WAM) is a complex system depending on global climate influences and multiple regional environmental factors. Central and Southern African biomass-burning (SABB) aerosols have been shown to perturb WAM during episodic northward inter-hemispheric transport events, but a possible dynamical connection between the core of the S...
Article
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Climate models in the past decades have been developed to such an extent to include atmospheric chemistry as part of their climate simulations. This is necessary for providing policy-makers and other stakeholders with reliable atmospheric projections as well as information about changes in chemical species as a consequence of climate change. The re...
Article
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Simulations are performed for the period 2000–2015 by two different regional climate models, ALADIN and RegCM, to quantify the direct and semi-direct radiative effects of biomass-burning aerosols (BBAs) in the southeast Atlantic (SEA) region. Different simulations have been performed using strongly absorbing BBAs in accordance with recent in situ o...
Article
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Abstract This study compares recent CO, NOx, NMVOC, SO2, BC, and OC anthropogenic emissions from several state‐of‐the‐art top‐down estimates to global and regional bottom‐up inventories and projections from five Shared Socioeconomic Pathways (SSPs) in several regions. Results show that top‐down emissions derived in several recent studies exhibit si...
Preprint
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Abstract. Simulations are performed for the period 2000–2015 by two different regional climate models, ALADIN–Climat and RegCM, to quantify the direct and semi-direct radiative effects of biomass burning aerosols (BBA) in the Southeast Atlantic (SEA) region. The approach of using two different independent RCMs reinforces the robustness of the resul...
Article
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This study explores the direct and semi-direct radiative effect of North African dust in the present and future climate using the regional climate model RegCM4. The simulations cover a historical decade extending from December 1999 to November 2009 and a future decade that spans from December 2089 to November 2099 under the Representative Concentra...
Article
The long-term variations of ozone are the combined results of climate change and air quality management. As Guangzhou is under the influence of both subtropical monsoon climate and rapid economic development, the ozone trend in recent years is uncertain. This paper presents the trend analysis of maximum daily average 8 h (MDA8) ozone and daily mete...
Article
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The regional climate model RegCM 4.4 at 50 km resolution is used to conduct a sensitivity study over South Asia Coordinated Regional climate Downscaling Experiment domain during the period 1998–2002, in order to investigate the best cumulus convective precipitation scheme, planetary boundary layer (PBL) and land-surface scheme. The inferences obtai...
Article
Up to now, a nation-wide scale study of surface ozone (O3) concentrations in China was limited due to scarce observation. Thanks to the establishment of national air quality monitoring network in 2013, surface O3 data from 1402 stations during 2014–2017 were collected to investigate O3 seasonality. Our analysis reveals that the variations of monthl...
Article
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The AEROCLO-sA (AErosol, RadiatiOn and CLOuds in southern Africa) project investigates the role of aerosols on the regional climate of southern Africa. This is a unique environment where natural and anthropogenic aerosols and a semi-permanent and widespread stratocumulus (Sc) cloud deck are found. The project aims to understand the dynamical, chemi...
Article
Pollen grains emitted from vegetation can rupture, releasing subpollen particles (SPPs) as fine atmospheric particulates. Previous laboratory research demonstrates potential for SPPs as efficient cloud condensation nuclei (CCN). We develop the first model of atmospheric pollen grain rupture and implement the mechanism in regional climate model simu...
Article
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Ground reaching solar radiation flux was simulated using a 1-dimensional radiative transfer (SBDART) and a 3-dimensional regional climate (RegCM 4.4) model and their seasonality against simultaneous surface measurements carried out using a CNR4 net Radiometer over a sub-Himalayan foothill site of south-east Asia was assessed for the period from Mar...
Article
This study examines the meteorological feedback on dust aerosols and rainfall over the Arabian Sea and India during the summer monsoon using satellite data, re-analysis and a regional climate model. Based on days with excess aerosol loading over the central Ganges basin during May – September, two distinct atmospheric circulation types (weather clu...
Article
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The regional climate model RegCM has been modified to better account for the climatic effects of biomass burning particles. Smoke aerosols are represented by new tracers with consistent radiative and hygroscopic properties to simulate the direct radiative forcing (DRF) and a new parameterization has been integrated for relating the droplet number c...
Article
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In the present study we are simulating the trans-Atlantic transport of dust from Sahara to the South-Central America, using the regional climate model RegCM4 and its online dust scheme, for the year 2007. The simulated horizontal and vertical distributions of the mineral dust optical properties were evaluated against the LIVAS CALIPSO satellite dus...
Article
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We investigate the sensitivity of aerosol representation in the regional climate model RegCM4 for two dust parameterizations for the period 2007–2014 over the Sahara and the Mediterranean. We apply two discretization methods of the dust size distribution keeping the total mass constant: (1) the default RegCM4 4-bin approach, where the size range of...
Chapter
The present study focuses on the evaluation of dust in on-line chemistry-climate simulations with the regional climate model RegCM4. The simulations cover the period from December 2006 to November 2014 and use the new dust scheme implemented in RegCM4 that splits 12 dust size groups according to the changes of dry deposition velocity with size (iso...
Article
The radiative forcing of elemental carbon (EC) and organic carbon (OC) has been estimated over two urban environments in Northern India (Jabalpur [JBL] and Udaipur [UDPR]) from November 2011 till November 2012 (till September 2012 over Jabalpur). The elemental carbon concentrations reached 7.36 ± 1.99 µg m–3 over JBL and were as high as 10.78 ± 4.8...
Book
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Ambient air ranks number one among the natural resources vital to human beings, with an average individual daily need of 12 kg. Due to the specificities of the Mediterranean region (sunny, hot and dry climate; long-range transport converging over the basin), air pollution in reactive compounds over the Mediterranean is often higher than in most Eur...
Article
We investigate the sensitivity of two dust parameterizations of the regional climate model RegCM4 for the period 2007–2014 over the Sahara and the Mediterranean. We apply two discretization methods of the dust size distribution keeping the total mass constant: 1) the default RegCM4 4-bin approach, where the size range of each bin is calculated usin...
Article
Temporal evolution, source apportionment and transport pathways of particulate matter (PM 2.5 and PM 10) are analysed over Guwahati, located in the Brahmaputra River Valley (BRV), as a function of meteorological dynamics. During the study period (July 2013eJune 2014), the mean PM 2.5 and PM 10 mass concentrations were found to be 52 ± 37 and 91 ± 6...
Article
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Common ragweed (Ambrosia artemisiifolia L.) is a highly allergenic and invasive plant in Europe. Its pollen can be transported over large distances and has been recognized as a significant cause of hay fever and asthma (D'Amato et al., 2007; Burbach et al., 2009). To simulate production and dispersion of common ragweed pollen, we implement a pollen...
Article
In this work, we mainly simulate the effects of aerosols on regional climate in southern China (SC) and northern China (NC) and compare the differences of aerosol climatic effects in strong/weak summer monsoon years with a modified regional climate model RegCM4. The results show that the total climatic effects of aerosols cause the decline of avera...
Chapter
The present analysis focuses on the model capability to properly simulate long-range Saharan dust transport for summer 2012 in the Western Mediterranean. The present contribution shows an intercomparison of a set of 9 European regional dust model simulations. An exhaustive comparison of model outputs against other models and observations can reveal...
Article
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The Chemistry-Aerosol Mediterranean Experiment (ChArMEx; http://charmex.lsce.ipsl.fr) is a collaborative research program federating international activities to investigate Mediterranean regional chemistry-climate interactions. A special observing period (SOP-1a) including intensive airborne measurements was performed in the framework of the Aeroso...
Book
The assessment of the future evolution of air quality requires accounting for both climate projections and the development of environmental policies. In the context of climate change adaptation, the geophysical changes to be expected in the decades to come will have an impact on chronic and extreme air pollution events (Jacob and Winner, 2009). But...
Article
Full-text available
Common ragweed (Ambrosia artemisiifolia L.) is a highly allergenic and invasive plant in Europe. Its pollen can be transported over large distances and has been recognized as a significant cause of hayfever and asthma (D'Amato et al., 2007; Burbach et al., 2009). To simulate production and dispersion of common ragweed pollen, we implement a pollen...
Article
Full-text available
We examine the sensitivity of dust radiative feedback to the dust absorption property during the Indian summer monsoon (June-September) season from 2005-2010 using the Regional Climate Model (RegCM4.1). The dust direct radiative forcing at top of atmosphere (TOA) switches from cooling to warming for absorbing dust over the Indian subcontinent. The...
Article
Full-text available
The Chemistry-Aerosol Mediterranean Experiment (ChArMEx; http://charmex.lsce.ipsl.fr) is a collaborative research program federating international activities to investigate Mediterranean regional chemistry-climate interactions. A special observing period (SOP-1a) including intensive airborne measurements was performed in the framework of the Aeroso...
Article
Full-text available
Over the past decade, aerosol optical depth (AOD) observations based on satellite and ground measurements have shown a significant increase over Arabia and the Arabian Sea, attributed to an intensification of regional dust activity. Recent studies have also suggested that west Asian dust forcing could induce a positive response of Indian monsoon pr...
Article
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Using the regional climate model (RegCM4), optical depth and shortwave (SW) direct radiative forcing (DRF) of secondary organic aerosol (SOA) are investigated over China during the summer period. The biogenic emission and gas phase chemistry modules are updated to investigate a-pinene and limonene emissions and their reactions with atmosphere oxida...
Article
The Central Asian deserts are a major dust source region that can potentially have a substantial impact on the Caspian Sea. Despite major advances in the modeling and prediction of the Caspian Sea Level (CSL) during recent years, no study to date has investigated the climatic effects of dust on the hydrological budget of the Sea. In this study, we...
Article
Full-text available
Over the past decade, Aerosol Optical Depth (AOD) observations based on satellite and ground measurements have shown a significant increase over Arabia and the Arabian Sea, attributed to an intensification of regional dust activity. Recent studies have also suggested that west Asian dust forcing could induce a positive response of Indian monsoon pr...
Article
Shortwave (SW) and longwave (LW) components of the radiation budget at the surface and top of the atmosphere (TOA) are evaluated in the RegCM4 regional climate model driven by European Centre for Medium-Range Weather Forecasts (ECMWF) Reanalysis (ERA-Interim) over Europe. The simulated radiative components were evaluated with those from satellite-b...
Article
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An experimental campaign, coupled with three-dimensional modeling, was conducted in the western Mediterranean during the summer of 2013 to study the impact of aerosols on the radiative balance and climate of this region. In situ observations were obtained on the ground, aboard two research aircraft and balloons to characterize the physico-chemical...
Conference Paper
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Résumé – On analyse ici la capacité du modèle climatique régional RegCM4 à simuler les champs radiatifs, la température de surface et les précipitations sur un domaine couvrant l'Afrique australe et le sud-ouest de l'océan Indien (0-40°S ; 0-100°E), centré sur La Réunion. Les données produites par le modèle sont confrontées aux données d'observatio...
Article
This work presents a modeling approach to simulate spatial distribution of metal contamination in aerosols with evaluation of health hazard. This approach offers the advantage to be non-intrusive, less expensive than sampling and laboratory analyses. It was applied to assess the impact of metal-bearing dust from mining wastes on air quality for a n...
Article
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This work is part of the IDAF program (IGAC-DEBITS-AFRICA) and is based on the long term monitoring of gas concentrations (1998-2007) established on seven remote sites representative of major African ecosystems. Dry deposition fluxes were estimated by the inferential method using on one hand surface measurements of gas concentrations (NO2, HNO3, NH...
Article
The mountain regions of the Hindu Kush, Karakoram and Himalaya (HKKH) are the "third pole" of our planet, and the glaciers in this area play the role of "water towers", delivering significant amounts of melt water, especially in the dry season, essential for agriculture, drinking purposes, and hydropower production. The recent dynamics of glaciers...
Article
One possible way to estimate the solar resource required by the solar industry, is to use Regional Climate Models, which provide a comprehensive and physically-based state-of-the-art description of the atmosphere and its interactions with the Earth's surface. In this study, the regional climate model RegCM4 is used to provide estimates of surface s...
Article
Full-text available
The present study investigates the dust emission and load over the Mediterranean basin using the coupled chemistry-aerosol-regional climate model RegCM-4. The first step of this work focuses on dust particle emission size distribution modeling. We compare a parameterization in which the emission is based on the individual kinetic energy of the aggr...
Article
Full-text available
Since the 1980s several spaceborne sensors have been used to retrieve the aerosol optical depth (AOD) over the Mediterranean region. In parallel, AOD climatologies coming from different numerical model simulations are now also available, permitting to distinguish the contribution of several aerosol types to the total AOD. In this work, we perform a...
Article
Full-text available
The present study investigates the dust emission and load over the Mediterranean basin using the coupled-chemistry-aerosol regional climate model RegCM-4. The first step of this work focuses on dust particle emission size distribution modeling. We compare a parameterization in which the emission is based on the individual kinetic energy of the aggr...
Article
Full-text available
The RegCM-CHEM4 is a new online climate-chemistry model based on the International Centre for Theoretical Physics (ICTP) regional climate model (RegCM4). Tropospheric gas-phase chemistry is integrated into the climate model using the condensed version of the Carbon Bond Mechanism (CBM-Z; Zaveri and Peters, 1999) with a fast solver based on radical...
Poster
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Abstracts of European Geosciences Union (EGU) General Assembly, 22-27 Apr 2012, Vienna, Austria; Geophysical Research Abstracts, Vol.14, EGU2012-10887 The signature of climate change on European surface ozone was studied using the online integrated climate-chemistry model for Environmental applications (EnvClimA). The EnvClimA is an environmental v...
Article
Aerosols can have very important effects on the climate through radiative forcing. Given their huge spatial and temporal variability, studies need to be done at a regional scale. This study focuses on the Mediterranean basin, which is a region where aerosols of different sources accumulate: industrial and urban aerosols from Europe, biomass burning...
Article
The RegCM-CHEM4 is a new online integrated climate-chemistry model based on the regional climate model (RegCM4). The RegCM4 developed at the Abdus Salam International Centre for Theoretical Physics (ICTP), is a hydrostatic, sigma coordinate model. Tropospheric gas-phase chemistry is integrated into the climate model using the condensed version of t...