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Serena Falasca     Post Doctoral Researcher 
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Serena Falasca published an article in July 2016.
Top co-authors
Carla Ippoliti

23 shared publications

Annamaria Conte

15 shared publications

Gabriele Curci

15 shared publications

2
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2
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Publication Record
Distribution of Articles published per year 
(2016)
Total number of journals
published in
 
2
 
Publications
CONFERENCE-ARTICLE 2 Reads 0 Citations Longer-Lasting Episodes in the 2015 Ozone Season in Italy in Comparison with Recent Years Serena Falasca, Annamaria Conte, Carla Ippoliti, Gabriele Cu... Published: 16 July 2016
The 1st International Electronic Conference on Atmospheric Sciences, doi: 10.3390/ecas2016-B005
DOI See at publisher website
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The year 2015 is considered the hottest on records at the global scale, since reliable temperature measurements are available. Ambient air quality is strongly influenced by meteorological conditions, and daytime surface ozone concentrations are generally positively correlated with temperatures. We thus analysed 2015 ozone data over Italy to check if exceptional ozone values reflected the exceptional temperatures. To this end, we evaluated the ozone season in 2015 compared to the 2002–2015 trend, using data from 24 selected monitoring stations and analyzing the exceedances of limit values imposed by the European directive. We found that 2015 was one of the hottest years over Italy, and the ozone season was one of the most severe in the last ten years. In 2015, the average duration of ozone episodes (the number of consecutive days with daily maximum 8-hour-average values higher than the threshold of 120 µg·m−3) was about 4 days, similar to that of 2006 and less than that of 2003 which was about 5 days. This duration is longer than the average observed in recent years, which is less than 3 days. Furthermore, the mean maximum concentration of ozone events was the second on record together with 2006, after the notable heatwave of 2003.

Article 0 Reads 3 Citations Numerical study of the daytime Planetary Boundary Layer over an idealized urban area: influence of surface properties, a... Serena Falasca, Franco Catalano, Monica Moroni Published: 01 April 2016
Journal of Applied Meteorology and Climatology, doi: 10.1175/jamc-d-15-0135.1
DOI See at publisher website
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Large eddy simulations of an idealized diurnal Urban Heat Island are performed using the Weather Research and Forecasting model. The surface energy balance over an inhomogeneous terrain is solved considering the anthropogenic heat contribution and the differences of thermal and mechanical properties between urban and rural surfaces. Several cases are simulated together with a reference case, considering different values of the control parameters: albedo, thermal inertia, roughness length, anthropogenic heat emission, and geostrophic wind intensity. Spatial distributions of second moment statistics, including the Turbulent Kinetic Energy (TKE) budget, are analyzed to characterize the structure of the Planetary Boundary Layer (PBL). The effect of each control parameter values on the turbulent properties of the PBL is investigated with respect to the reference case. For all the analyzed cases, the primary source of TKE is the buoyancy in the lower half of the PBL, the shear in the upper half and the turbulent transport term at the top. The vertical advection of TKE is significant in the upper half of the PBL. The control parameters significantly influence the shape of the profiles of the transport and shear terms in the TKE budget. Bulk properties of the PBL via proper scaling are compared to literature data. A log-linear relationship between the aspect-ratio of the heat island and the Froude number is confirmed. For the first time the effect of relevant surface control parameters and the geostrophic wind intensity on the bulk and turbulent properties of the PBL are systematically investigated at high resolution.