A5085554115- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Atmospheric aerosols and clouds
- Advanced Thermodynamics and Statistical Mechanics
- Vehicle emissions and performance
- Maritime Transport Emissions and Efficiency
- Air Quality Monitoring and Forecasting
- Theoretical and Computational Physics
- nanoparticles nucleation surface interactions
- Water Quality Monitoring and Analysis
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geophysics and Gravity Measurements
- Spectroscopy and Laser Applications
- Nanopore and Nanochannel Transport Studies
- Impact of Light on Environment and Health
- Electrostatics and Colloid Interactions
- Electrohydrodynamics and Fluid Dynamics
- Image Processing and 3D Reconstruction
- Phase Equilibria and Thermodynamics
- Ocean Acidification Effects and Responses
- Fluid Dynamics and Turbulent Flows
Institute of Atmospheric Sciences and Climate
2008-2025
National Research Council
2007-2025
National Academies of Sciences, Engineering, and Medicine
2012
University of Bologna
2002-2009
National Agency for New Technologies, Energy and Sustainable Economic Development
2009
Pollutants information can be retrieved from visible (VIS) and ultraviolet (UV) diffuse solar spectra exploiting Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) instruments. In May 2021, the Italian research institute CNR-ISAC acquired deployed a MAX-DOAS system SkySpec-2D. It is located in “Giorgio Fea” observatory San Pietro Capofiume (SPC), middle of Po Valley, where it has constantly zenith off-axis since 1st October 2021. This work presents tropospheric NO2 aerosol...
This paper describes the radiative transfer model (RTM) MOCRA (MOnte Carlo Radiance Analysis), developed in frame of DOAS (Differential Optical Absorption Spectroscopy) to correctly interpret remote sensing measurements trace gas amounts atmosphere through calculation Air Mass Factor.Besides DOAS-related quantities, code yields: 1-the atmospheric transmittance vertical and sun directions, 2-the direct global irradiance, 3-the singleand multiple-scattered radiance for a detector with assigned...
tants, offering numerous advantages over conventional networks of in situ analysers. We propose some innovative solutions the field DOAS (Differential Optical Absorption Spectroscopy) remote systems, utilizing diffuse solar light as radiation source. examine potentialities minor gas slant column calculations, applying «off-axis» methodology for collecting radiation. One these particular approaches, using measurements along horizontal paths, has already been tested with spectrometer installed...
The emissions of the cruise ships, in terms nitrogen dioxide (NO<sub>2</sub>) and sulphur (SO<sub>2</sub>), are evaluated with DOAS scanning spectrometer TropoGAS (Tropospheric Gas Analyser Spectrometer) developed at ISAC CNR close collaboration CGE-UE. slant columns amounts above mentioned compounds obtained application Differential Optical Absorption Spectroscopy (DOAS) technique to spectral measurements carried out instrument. This last is linked an optical fibre a simple system allowing...
This paper presents a methodology for the retrieval of vertical profile atmospheric gas pollutants in boundary layer from ground-based remote sensing measurements. Nitrogen dioxide (NO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ) and ozone (O xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> slant column amounts were obtained with differential optical absorption spectroscopy (DOAS) technique used multiple-axis configuration...
This paper presents an evaluation of the nitrogen dioxide (NO2) trend inferred from UV–visible zenith-sky measurements performed at 'Ottavio Vittori' ground-based research station (http://www.isac.cnr.it/cimone) Monte Cimone (44.18° N, 10.7° E, 2165 m above sea level (a.s.l.)). Experimental data series are obtained measured spectra adopting a retrieval procedure according to differential optical absorption spectroscopy (DOAS) methodology. Data cover period 1993 2009, with limited...
In the frame of DOAS, a Monte Carlo code has been developed, to calculate, for given detector with assigned diameter and field view, single multiple scattering radiance. Very general 3-D geometry is foreseen. Spatial distribution along axis total radiance are computed. Ground reflected contributions solar estimated. Differential effects due small perturbations in physical parameters, such as ozone density, can simultaneously be taken into account same calculation. The applied ToTaL-DOAS...
A simple method to determine the vertical distribution of a pollutant gas, namely NO<sub>2</sub>, by means spectral measurements obtained with scan-DOAS spectrometer, is presented. The developed technique can be summarized as follows: i) series quasi simultaneous in zenith and others directions allowing for determination Slant Column Density NO<sub>2</sub> different elevation angles; ii) an active DOAS measurement concentration at ground; iii) set Radiative Transfer Model (RTM) calculation...
The GASCOD (Gas Analyzer Spectrometer Correlating Optical Differences) has been installed at the 'Mario Zucchelli' Antarctic station since 1996. It measures zenith sky radiation in 405-465 nm spectral range unattended and automatic mode. application to data of DOAS (Differential Absorption Spectroscopy) algorithms coupled with a Radiative Transfer Model (RTM) for computation Air Mass Factor (AMF), allows retrieval total content main absorber this range, namely nitrogen dioxide (NO2)....
In 2019 the Far-Infrared Outgoing Radiation Understanding and Monitoring (FORUM) mission was selected to be 9th Earth Explorer of European Space Agency (ESA). preparatory phase there need for accurate versatile codes compute spectrally resolved radiation escaping space ( outgoing long-wave radiation, OLR), targets FORUM measurements.Moreover, study planetary atmospheres, several instruments measuring have been deployed (i.e., Fourier spectrometer on Mars express or composite infrared...
A geometrical method to determine the vertical distribution of a trace gas in lower troposphere is presented. The technique based on quasi-simultaneous measurements diffuse solar radiation with spectrometric equipment observing atmosphere from different viewing directions and measurement distant lamp. Differential optical absorption spectroscopy (DOAS) algorithms are applied retrieve slant column densities (SCDs) analyzed compound. recursive procedure involving set observed SCDs, geometry...
The present work deals with UV/Vis up-welling and down-welling irradiation measurements carried out in the lower Antarctic stratosphere by means of GASCOD-A/4pi spectroradiometer on board M55-Geophysica aircraft during APE-GAIA campaign. Very few such have been performed stratosphere. experimental data are used for calculation NO2 photodissociation rate coefficients upper troposphere along altitude flight. A detailed description measurement method, instrumentation calibration procedures is...
In this paper we present a methodology for the retrieval of vertical profile atmospheric gas pollutants in boundary layer from ground based remote sensing measurements. Nitrogen dioxide (NO<sub>2</sub>) and ozone (O<sub>3</sub>) slant column amounts have been obtained with Differential Optical Absorption Spectroscopy (DOAS) technique used multiple axis configuration (the so called MAX-DOAS). The measurements carried out Presidential Estate at Castel Porziano (Rome) period September to...