Urban areas are among the main causes of greenhouse gases emissions on the planet, despite covering relatively small areas of the land. Recently, a number of projects aim at monitoring the dynamics of city emissions using micro meteorological measurements by applying the technique of eddy correlation for measuring the fluxes of carbon dioxide, water, methane and energy. In this perspective, a super-site for the measurement of atmospheric pollutants from urban sources has been established in Naples (Campania, Southern Italy), where the complex layout of the coast and surrounding mountains favours the development of combined sea breeze upslope winds and the evolution of return flows with several layers of pollutants and subsidence. At the super-site, an eddy covariance tower has been installed on the rooftop of the Meteorological Observatory of Largo San Marcellino, situated in the historical city centre: a fast response ultrasonic anemometer (Gill WindMaster) has been mounted on a 10-m mast, alongside three insulated inlet lines through which the air is sampled for gaseous pollutants and particulate matter. The height of the terrace is on average 35 m above the irregular street level, resulting in an overall measuring height of 45 m. Mixing ratios of CO2, CH4 and H2O are measured by an infrared spectrometer (10 Hz, Los Gatos Research). The results shown that the mean urban levels of CO2 are between 420-520 ppm; the mean levels of CH4 span between 1.85-2.48 ppm. These fluxes are representative of varying footprint source areas, covering the historical centre of Naples, the harbour, and some main traffic arteries of the city. The analysis of these measurements on long-term will allow to establish relationships between the fluxes of greenhouse gases and the other pollutant species measured.

Greenhouse gas emissions from urban area of Naples / Piscitelli, Daniela; Famulari, Daniela; Esposito, Andrea; Tommasi, Paul Di; Agrillo, Giuseppe; Tosca, Maurizio; Mazzarella, Adriano; Viola, Raffaele; Scafetta, Nicola; Gioli, Beniamino; Magliulo, Enzo; Riccio, Angelo; Zaldei, Alessandro; Toscano, Piero. - (2015). (Intervento presentato al convegno Potsdam Greenhouse Gas Workshop From Natural to Urban Systems tenutosi a Potsdam, Germany nel 19 - 23 October 2015).

Greenhouse gas emissions from urban area of Naples

ESPOSITO, ANDREA;AGRILLO, GIUSEPPE;MAZZARELLA, ADRIANO;VIOLA, RAFFAELE;SCAFETTA, NICOLA;
2015

Abstract

Urban areas are among the main causes of greenhouse gases emissions on the planet, despite covering relatively small areas of the land. Recently, a number of projects aim at monitoring the dynamics of city emissions using micro meteorological measurements by applying the technique of eddy correlation for measuring the fluxes of carbon dioxide, water, methane and energy. In this perspective, a super-site for the measurement of atmospheric pollutants from urban sources has been established in Naples (Campania, Southern Italy), where the complex layout of the coast and surrounding mountains favours the development of combined sea breeze upslope winds and the evolution of return flows with several layers of pollutants and subsidence. At the super-site, an eddy covariance tower has been installed on the rooftop of the Meteorological Observatory of Largo San Marcellino, situated in the historical city centre: a fast response ultrasonic anemometer (Gill WindMaster) has been mounted on a 10-m mast, alongside three insulated inlet lines through which the air is sampled for gaseous pollutants and particulate matter. The height of the terrace is on average 35 m above the irregular street level, resulting in an overall measuring height of 45 m. Mixing ratios of CO2, CH4 and H2O are measured by an infrared spectrometer (10 Hz, Los Gatos Research). The results shown that the mean urban levels of CO2 are between 420-520 ppm; the mean levels of CH4 span between 1.85-2.48 ppm. These fluxes are representative of varying footprint source areas, covering the historical centre of Naples, the harbour, and some main traffic arteries of the city. The analysis of these measurements on long-term will allow to establish relationships between the fluxes of greenhouse gases and the other pollutant species measured.
2015
Greenhouse gas emissions from urban area of Naples / Piscitelli, Daniela; Famulari, Daniela; Esposito, Andrea; Tommasi, Paul Di; Agrillo, Giuseppe; Tosca, Maurizio; Mazzarella, Adriano; Viola, Raffaele; Scafetta, Nicola; Gioli, Beniamino; Magliulo, Enzo; Riccio, Angelo; Zaldei, Alessandro; Toscano, Piero. - (2015). (Intervento presentato al convegno Potsdam Greenhouse Gas Workshop From Natural to Urban Systems tenutosi a Potsdam, Germany nel 19 - 23 October 2015).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/634043
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