A5059635034- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Zeolite Catalysis and Synthesis
- Mesoporous Materials and Catalysis
- Arctic and Antarctic ice dynamics
- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Climate variability and models
- Aeolian processes and effects
- Marine and coastal ecosystems
- Ocean Acidification Effects and Responses
- Oceanographic and Atmospheric Processes
- Catalysts for Methane Reforming
- Layered Double Hydroxides Synthesis and Applications
- Meteorological Phenomena and Simulations
- Maritime Transport Emissions and Efficiency
- Catalysis for Biomass Conversion
- Vehicle emissions and performance
- Air Quality and Health Impacts
- Calibration and Measurement Techniques
- Biodiesel Production and Applications
- Metal-Organic Frameworks: Synthesis and Applications
National Agency for New Technologies, Energy and Sustainable Economic Development
2015-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari
2008-2023
University of Cagliari
2004-2022
Gheorghe Asachi Technical University of Iași
2010
Tecnologia Energia Ambiente Materiali (Italy)
2004-2010
Sapienza University of Rome
2000-2005
Université de Poitiers
1999-2001
Centre National de la Recherche Scientifique
1999-2001
Informa (Italy)
1996
Abstract. Aerosol optical depth and Ångström exponent were obtained from multi filter rotating shadowband radiometer (MFRSR) observations carried out at the island of Lampedusa, in Central Mediterranean, period July 2001–September 2003. The average aerosol 495.7 nm, τ, is 0.24±0.14; exponent, α, 0.86±0.63. observed values τ range 0.03 to 1.13, α vary −0.32 2.05, indicating a large variability content size. In cloud-free conditions, 36% airmasses come Africa, 25% Central-Eastern Europe, 19%...
Abstract. Measurements of aerosol chemical composition made on the island Lampedusa, south Sicily channel, during years 2004–2008, are used to identify influence heavy fuel oil (HFO) combustion emissions particles in Central Mediterranean. Aerosol samples influenced by HFO characterized elevated Ni and V soluble fraction (about 80% for from combustion, versus about 40% crustal particles), high Si ratios, values Vsol>6 ng m−3. Evidence is found 17% daily samples. Back trajectories analysis...
Abstract. The Chemistry-Aerosol Mediterranean Experiment (ChArMEx; http://charmex.lsce.ipsl.fr) is a collaborative research program federating international activities to investigate regional chemistry-climate interactions. A special observing period (SOP-1a) including intensive airborne measurements was performed in the framework of Aerosol Direct Radiative Impact on climate MEDiterranean region (ADRIMED) project during dry season over western and central basins, with focus...
Abstract. The present study investigates the radiative effects of dust aerosols in Mediterranean region during summer 2012 using a coupled regional aerosol–atmosphere–ocean model (CNRM-RCSM5). A prognostic aerosol scheme, including desert dust, sea salt, organic, black-carbon and sulphate particles, has been integrated to CNRM-RCSM5 addition atmosphere, land surface ocean components. An evaluation this scheme CNRM-RCSM5, especially aerosols, performed against situ satellite measurements,...
Abstract. This study aims to determine the mineral contribution PM10 in central Mediterranean Sea, based on 7 yr of daily samplings made island Lampedusa (35.5° N, 12.6° E). The chemical composition samples was determined by ion chromatography for main ions, and, selected samples, particle-induced X-ray emission (PIXE) total content crustal markers. Aerosol optical depth measurements were carried out parallel sampling. average concentration at over period June 2004–December 2010 is 31.5 μg...
This study examines the relationships linking methanesulfonic acid (MSA, arising from atmospheric oxidation of biogenic dimethylsulfide, DMS) in aerosol, satellite-derived chlorophyll a (Chl-a), and oceanic primary production (PP), also as function sea ice melting (SIM) extension free area marginal zone (IF-MIZ) Arctic. MSA was determined PM10 samples collected over period 2010–2012 at two Arctic sites, Ny Ålesund (78.9°N, 11.9°E), Svalbard islands, Thule Air Base (76.5°N, 68.8°W),...
Abstract Despite the importance of high-latitude surface energy budgets (SEBs) for land-climate interactions in rapidly changing Arctic, uncertainties their prediction persist. Here, we harmonize SEB observations across a network vegetated and glaciated sites at circumpolar scale (1994–2021). Our variance-partitioning analysis identifies vegetation type as an important predictor SEB-components during Arctic summer (June-August), compared to other SEB-drivers including climate, latitude...
In this work a sample of SBA-15 mesoporous silica was synthesized and characterized by TEM, XRD, N2 adsorption. The had high value specific surface area (1007 m2 g-1) total pore volume (2.1 cm3 g-1). diameter 67 Å, so it large enough to accommodate protein molecules inside the channels. Immobilization physical adsorption commercial lipase preparation from Mucor javanicus performed at different pH values (pH 5−8). 6 gave highest loading hydrolytic activity corresponding biocatalyst. Chemical...
Abstract. Aerosol optical properties were retrieved from direct and diffuse spectral irradiance measurements made by a multi-filter rotating shadowband radiometer (MFRSR) at the island of Lampedusa (35.5° N, 12.6° E), in Central Mediterranean, period July 2001–September 2003. In companion paper (Pace et al., 2006) aerosol depth (AOD) Ångström exponent used together with airmass backward trajectories to identify classify different types. The MFRSR diffuse-to-direct ratio (DDR) 415.6 nm 868.7...
Aerosol optical properties and shortwave irradiance measurements at the island of Lampedusa (central Mediterranean) during 2004–2007 are combined with Clouds Earth's Radiant Energy System observations outgoing flux top atmosphere (TOA). The used to estimate surface (FE S ), TOA atmospheric ATM ) aerosol forcing efficiencies for solar zenith angle (θ) between 15° 55° desert dust (DD), urban/industrial‐biomass burning aerosols (UI‐BB), mixed (MA). efficiency different levels is derived by...
Ground‐based measurements of aerosol optical depth and surface shortwave irradiance carried out at the Mediterranean island Lampedusa during 2004–2007 are used to estimate direct radiative forcing for desert dust (DD), urban/industrial‐biomass burning (UI‐BB), mixed aerosols (MA). The single scattering albedo, ω , 415.6 868.7 nm is derived 60° solar zenith angle, θ, from global diffuse radiation using transfer model calculations. efficiency (FE S ) derived, θ between 20° 75°, three...
[1] Aerosol optical properties, shortwave (SW) and longwave (LW) irradiances, were measured at the island of Lampedusa during a very intense Saharan dust event in March 2010. The depth 500 nm reached 10 year record value 1.9 on 25 March. Outgoing radiative fluxes from Clouds Earth's Radiant Energy System used to derive effect top atmosphere (TOA). SW LW forcings (RFs) over sea derived by combining irradiances pristine day, transfer calculations. At satellite overpass (solar zenith angle...
Abstract. Particulate matter with aerodynamic diameters lower than 10 µm, (PM10) aerosol samples were collected during summer 2013 within the framework of Chemistry and Aerosol Mediterranean Experiment (ChArMEx) at two sites located north (Capo Granitola) south (Lampedusa Island), respectively, main shipping route in Straight Sicily. The PM10 12 h time resolutions both sites. Selected metals, anions, cations elemental organic carbon determined. evolution soluble V Ni concentrations (typical...
Abstract Desert dust interacts with shortwave (SW) and longwave (LW) radiation, influencing the Earth radiation budget atmospheric vertical structure. Uncertainties on role are large in LW spectral range, where few measurements available optical properties not well constrained. The first airborne of irradiance profiles over Mediterranean were carried out during Ground‐based Airborne Measurements Aerosol Radiative Forcing (GAMARF) campaign, which took place spring 2008 at island Lampedusa....
Abstract Since May 2022, the Mediterranean Sea has been experiencing an exceptionally long marine heatwave event. Warm anomalies, mainly occurring in Western basin, have persisted until boreal spring 2023, making this event longest heat wave of last four decades. In work, 2022/2023 anomaly is characterized, using in-situ and satellite measurements, together with state art reanalysis products. The role atmospheric forcing also investigated; onset growth sea surface temperature anomalies found...
Observations at Lampedusa show that long‐lasting intense episodes of fine (Ångström exponent, α, > 1.5) light absorbing aerosol occurred in the central Mediterranean during summer 2003, along with exceptionally hot and dry conditions throughout continental Europe basin. The particles appear to be produced mostly by large‐scale forest fires southern Europe. In this paper Moderate Resolution Imaging Spectroradiometer (MODIS) observations are used determine spatial temporal extent 2003 fire...
Several validation studies of surface UV irradiance based on the Ozone Monitoring Instrument (OMI) satellite data have shown a high correlation with ground‐based measurements but positive bias in many locations. The main part can be attributed to boundary layer aerosol absorption that is not accounted for current algorithms. To correct this shortfall, post‐correction procedure was applied, global climatological fields optical depth. These were obtained by using depth and single scattering...
Ground based measurements of aerosol optical depth, τ , and shortwave irradiance at the Mediterranean island Lampedusa during 2003 2004 were used to estimate surface radiative forcing. The forcing efficiency (FE) was derived various solar zenith angles, θ, as derivative with respect . Values FE for different classes particles, namely desert dust, DD, biomass burning/industrial aerosols, BU, whole dataset are derived. At summer solstice daily average is −86.4 W/m 2 −70.5 −94.0 dataset. DD...
The seasonal evolution of the aerosol vertical distribution in Central Mediterranean is studied using measurements made period 1999–2008 at Lampedusa with an Lidar and a multi filter rotating shadowband radiometer (MFRSR). Measurements show that largely influenced by Saharan dust, which produces strong annual cycle both extension optical depth. Dust layers are present profile 38% cases throughout year, 57% summer. dust top altitude peaks late spring, up to 9 km. monthly average depth 500 nm...