Seminars

WATCH IT ON YOUTUBE (ITALIAN)

Abstract

An overview is made of the sea level rise and the flooding storm surges, named ‘acqua alta’ (AA) that occurred in Venice over the last seven centuries. Since 1871, the sea level and surge data are provided by tide gauges. In the previous period, documentary and proxy data are used, i.e.: (i) manuscripts and other written sources; (ii) visual arts, i.e. accurate paintings made by Canaletto and Bellotto (18th century) with the help of the ‘camera obscura’, which report a biological indicator of the high tide level, i.e. the belt of green algae, named ‘comune marino’ (CM); a similar painting by Veronese, dating 1571; (iii) measuring the submersion depth of the lowest step of water stairs that was originally conceived to be above the CM level, to allow people to use it when they got off the boat. The historical AA are also analyzed, and the 1966 depth was frequently reached. The record shows that the frequency and depth of the AA are related to the exchange of water between the lagoon and the sea, occurring across the lagoon inlets.

Suggested literature

• Camuffo D., Sturaro G., (2003). Sixty-cm submersion of Venice discovered thanks to Canaletto’s paintings. Climatic Change, 58, 333-343. DOI: 10.1023/A:1023902120717
• Camuffo D., Bertolin C., Schenal P., (2017). A novel Proxy and the Sea Level Rise in Venice, Italy, from 1350 to 2014, Climatic Change 143(1), 73-86. DOI 10.1007/s10584-017-1991-3
• Camuffo D., (2021). Four centuries of documentary sources concerning the sea level rise in Venice. Climatic Change 167, 54, 1-16 DOI: 10.1007/s10584-021-03196-9
• Camuffo D., (2022) A discussion on sea level rise, rate ad acceleration. Venice as a case study. Environmental Earth Sciences 81(349), 1-13. DOI: 10.21203/rs.3.rs-1073418/v1
• Camuffo D., (2023). The ‘Treatise on Waters’ by Cornaro (1560) and a quantitative assessment of the historical sea surges ‘Acqua Alta’ in Venice. Climatic Change, 176(18), 1-20. DOI: 10.1007/s10584-023-03492-6
• Camuffo D., (2023).  The Gondola: a boat to respond to the history and the morpho-dynamics of the Venice Lagoon. Méditerranée, Varia,1-77. DOI: 10.4000/mediterranee.14364

During my studies in chemistry at the University of Pavia, I have shown interest in the role of anthropogenic pollutants in the environment. Since then, this interest evolved and brought me to undertake a PhD on the role of black carbon in the climatic system between the University of Grenoble in France and the Paul Scherrer Institute in Switzerland. With various postdoctoral experiences between France and Germany, I investigated the presence of black carbon particles in the Arctic, and its interaction with radiation and clouds, making use of ground and airborne observations (Alfred Wegener Institute, DE) and chamber simulations (Laboratoire Interuniversitaire des Systèmes Atmosphériques, FR; Karlsruhe Institute of Technology, DE). Recently the ITINERIS project gave me the chance to explore the relationship between black carbon particles and atmospheric dynamics, using long-term observations conducted at the Monte Cimone. In the frame of the ITINERIS seminars, I will present my past work and discuss my current research activities at the Institute of Atmospheric Sciences and Climate in Bologna.

https://www.isac.cnr.it/en/users/marco-zanatta

Collegamento per partecipazione online
https://global.gotomeeting.com/join/932307501

Giovedì 12 gennaio 2023, a partire dalle 10, si terrà il webinar "Inquinanti emergenti: il black carbon e i rischi per la salute" organizzato dal Centro regionale qualità dell'aria dell'ARPA Lazio

Gli interventi tecnici, tenutoi da esperti dell'ARPA, del DEP Lazio (Dipartimento di Epidemiologia del Servizio sanitario regionale del Lazio) e del CNR (Consiglio nazionale delle ricerche) affronteranno il tema sia dal punto di vista ambientale (in particolare per quanto riguarda le modalità di monitoraggio) che da quello sanitario.

La partecipazione è libera e gratuita, ma per iscriversi è necessario registrarsi attraverso la piattaforma Eventbrite a questo indirizzo: https://www.eventbrite.com/e/biglietti-inquinanti-emergenti-il-black-carbon-e-i-rischi-per-la-salute-webinar-500029641117

Di seguito il programma dell'evento 

10:00

Saluti introduttivi

10:15 - 11:30: Interventi tecnici

• "Il monitoraggio del Black carbon"
• Donatella Occhiuto (ARPA Lazio)
• "Black carbon ed effetti sulla salute" Manuela Desario (DEP Lazio)
• "Nuove metriche per il materiale particolato: il Black carbon a Roma” F. Costabile, L. Marinelli, G. Di lulio (CNR)

11.30-12:00:

Discussione e conclusioni

Abstract . Societies are still vulnerable to severe weather and related consequences such as flooding, landslides or wildfires. Thunderstorms represent one of meteorological hazards and despite the fact that a lot of researchers’ attention is paid to them for tens of years, the knowledge has not been completed yet.
Our team tries to better understand the processes related to cloud electrification using tools of numerical modeling and observations. The numerical modeling aims at explicit modeling of cloud electrification and lightning in the frame of a research cloud model WISCDYMM-II. Most of the observations we use for our investigations come from our observatory Milešovka, which is located at a hill in northern part of Czechia in Central Europe (837 m ASL). In addition to standard meteorological data, the observatory is equipped with two radars: (i) Ka-band cloud profiler and (ii) X-band weather radar.

remote link: https://global.gotomeeting.com/join/932307501

Part 1: Microscopic observations of core‐shell particle structure and implications for atmospheric aerosol remote sensing.

This work is dedicated to (i) study of physicochemical properties and mixing state of individual particles (with particularity on coated particles) by means of analytical scanning and transmission electron microscopy for aerosols collected during episodes of elevated aerosol loading; (ii) analysis of the effect of microphysical properties on optical characteristics as measured and retrieved by remote sensing; and (iii) investigation of possible parameterization of aerosol composition and structure in remote sensing algorithms.

Part 2: On-line detection of non-anthropogenic air pollution

The spectral absorption of mineral dust is analyzed by a novel method, consisting of two on-line 7-wavelengths Aetohalometer (AE33; Aerosol d.o.o., Slovenia), one measuring with a PM1 inlet for the aerosol fine fraction and a second one equipped with a high-volume virtual impactor (VI) to concentrate the aerosol coarse fraction. By subtracting the PM1 contribution from the VI measurements and normalizing to the enhancement factor, one can get the optical absorption of mineral dust. The Absorption Angstrom Exponent of coarse particles varies as a function of their source region and shows a strong spectral dependency for African and Middle East mineral dust. Analysis of the data set includes comparisons with off-line filter-based chemical analysis, showing a good correlation with the novel method results.

Part 3: Mapping the spatial variability of aerosol properties by means of mobile systems.

The majority of ground-based aerosols observations are limited to fixed locations, narrowing the knowledge of their spatial variability. In order to overcome this issue, several systems have been developed to explore the aerosol vertical and spatial variability. These systems can perform on-road mobile measurements, by means of vehicles, UAVs, and research vessels boarding scientific instruments.

Unga Florin's CV: https://www.isac.cnr.it/sites/default/files/curricula/FlorinUnga_CV_2022_0.pdf

SEE IT ON YOUTUBE: https://youtu.be/qsNXgxZK1iw

Nel seminario verrà fornita un'overview sul podcast come strumento di comunicazione della scienza, con un'ottica rivolta in particolare agli istituti di ricerca. Verranno illustrate anche una serie di case histories e best practices per fornire elementi concreti e di discussione al termine dell'evento.

CV Sara Moraca: https://www.isac.cnr.it/en/users/sara-moraca

RIVEDI su YOUTUBE: https://youtu.be/mcUg6qOtRgE

Ciclo di seminari su tematiche amministrative di interesse comune

Presso il CNR-ISAC si svolgono ricerche sui fulmini da circa 20 anni. Queste ricerche hanno riguardato sia i processi di elettrificazione delle nubi, sia i metodi osservativi che la modellistica.

In questo seminario si riporteranno gli sviluppi più recenti di questa ricerca, limitandosi agli aspetti modellistici. Nello specifico si considera sia la previsione dei fulmini che la loro assimilazione nei modelli di previsione numerica.

La previsione dell’attività elettrica ha avuto, di recente, una nuova spinta rispetto ai primi esperimenti svolti nel 2016-2017. Sono stati implementati due schemi di previsione dell’attività elettrica nel modello WRF e sono mostrati i risultati per un trimestre di previsione.

L’assimilazione dei fulmini si è rivelata uno strumento molto utile per la previsione di eventi di precipitazione convettiva intensa sia su mare che su terra, e l’impatto dell’assimilazione dei dati di fulminazione può essere confrontabile con quello dell’assimilazione della riflettività radar. Saranno mostrati i risultati di alcuni esperimenti numerici con assimilazione di dati di fulminazione

CV Stefano Federico: https://www.isac.cnr.it/en/users/stefano-federico

The climate system can be seen as a highly complex thermal engine, in which numerous processes continuously interact to transform heat into work and vice-versa. In this seminar, I will try to examine a few fundamental facts about the general circulation of the atmosphere, from the point of view of the basic laws of thermodynamics. I will review the concepts of available potential energy, lay down the connection between heat transports and enthalpy fluxes, discuss how energy conversions in mid-latitudes can be addressed in terms of a very intuitive conceptual framework, the Lorenz Energy Cycle. I will then focus on new results about the role of eddies in the meridional transport of heat across NH mid-latitudes, emphasizing the role of extreme events and the emergence of preferred weather regime patterns. In general, I will try to convey the message that extreme transports tend to follow recurrent paths of mid-latitudinal eddy atmospheric circulation, opening new possibilities on the detection and predictability of severe weather events and their impacts.

SEE ON YOUTUBE

Go to Valerio Lembo's CV