Riccardo Biondi

Riccardo Biondi
University of Padova | UNIPD · Department of Geosciences

PhD

About

79
Publications
11,438
Reads
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752
Citations
Additional affiliations
September 2018 - present
University of Padova
Position
  • Principal Investigator
Description
  • project Volcanic clouds dEtection and monitoring for Studying the erUption impact on climate and aVIatiOn (VESUVIO) and project airport-sCAle seveRe weather nowcastinG project (CARGO)
November 2017 - August 2018
November 2015 - November 2017
Italian National Research Council
Position
  • Fellow
Description
  • ENHANCED MONSOON PREDICTABILITY: ROLE OF AEROSOLS IN THE TROPOSPHERE (EMPATHIA)
Education
November 2008 - October 2011
Technical University of Denmark
Field of study
  • Atmospheric Physics
November 1993 - July 2002
Universita degli studi di Perugia
Field of study
  • Electronic Engineering
September 1988 - June 1993
Liceo Scientifico Citta' della Pieve
Field of study

Publications

Publications (79)
Article
Full-text available
One of the challenges for meteorologists is to forecast severe weather events developing at small spatial and temporal scales. The H2020 SESAR project "Satellite-borne and IN-situ Observations to Predict The Initiation of Convection for ATM" (SINOPTICA) aims at improving the performances of the numerical weather prediction model to nowcast severe w...
Conference Paper
One of the challenges for meteorologists is to forecast severe weather events developing at small spatial and temporal scales. The H2020 SESAR project "Satellite-borne and IN-situ Observations to Predict The Initiation of Convection for ATM" (SINOPTICA) aims at improving the performances of the numerical weather prediction model to nowcast severe w...
Conference Paper
The prediction of rapidly developing thunderstorms in small and localized areas is a challenge for the scientific community. Quickly developing but intense thunderstorms are usually characterized by large hail size, huge amount of rain in a short period, high lightning frequency and strong winds thus potentially capable to affect people and socio-e...
Article
Detection of volcanic hazards are important for public health and aircraft safety. In this study, we investigate the ability to detect volcanic plume using a simple analytic approach based on Global Navigate Satellite System (GNSS) observations, numerical weather model (NWM) fields and ground-based automatic weather stations. The GNSS data obtained...
Conference Paper
The H2020 SINOPTICA Project (2020-2022) aims at exploiting the untapped potential of assimilating remote sensing (EO-derived and ground-based radar) as well as GNSS-derived datasets (including radio occultation data) and in-situ weather stations data. Those data will be used for very high-resolution, very short-range numerical weather forecasts to...
Conference Paper
The Global Navigation Satellite Systems (GNSS) Radio Occultation (RO) technique allows the sounding of the atmosphere with a vertical resolution of about 100 m in the upper troposphere. It has already been demonstrated that the RO bending angle, by showing clear anomalies at the cloud top heights, is an efficient parameter to highlight the presence...
Conference Paper
The H2020 SINOPTICA Project (2020-2022) aims at exploiting the untapped potential of assimilating remote sensing as well as GNSS-derived datasets and in-situ weather stations data. The main goal is getting very high-resolution, very short-range numerical weather forecasts to improve the prediction of extreme weather events to the benefit of Air Tra...
Article
Full-text available
We present a multi-sensor archive collecting spatial and temporal information about volcanic SO2 clouds generated by the 11 largest eruptions of this century. The detection and monitoring of volcanic clouds are an important topic for aviation management, climate issues and weather forecasts. Several studies focusing on single eruptive events exist,...
Article
Full-text available
Global Positioning System (GPS) radio occultation (RO) observations, first made of Earth’s atmosphere in 1995, have contributed in new ways to the understanding of the thermal structure and variability of the tropical upper troposphere–lower stratosphere (UTLS), an important component of the climate system. The UTLS plays an essential role in the g...
Chapter
In the last decades, the great availability of data and computing power drove the development of powerful machine learning techniques in many research areas, including the ones, as the meteorology, where traditional conceptual models were usually adopted. In this work, we analyze the performance obtained by different techniques in the forecasting o...
Conference Paper
Full-text available
Explosive volcanic eruptions can generate ash and gas clouds rising to the stratosphere and dispersing on a global scale. Such volcanic features are at the origin of many hazards including aircraft engine damages, ash fallouts and health threats. It is thus crucial, to mitigate such hazards, to monitor volcanic clouds dispersion and altitude. In th...
Conference Paper
Full-text available
Severe weather events locally developing in a short time range are one of the major risks for aviation safety. Nowcasting and understanding the initiation of storm cells is still a challenging topic for meteorology and atmospheric physics. We combined the use of weather radar, weather stations and ground-based GNSS receivers to characterize the sev...
Article
Full-text available
Tropical cyclones (TC) are natural destructive phenomena, which affect wide tropical and subtropical areas every year. Although the correct prediction of their tracks and intensity has improved over recent years, the knowledge about their structure and development is still insufficient. The Global Navigation Satellite System (GNSS) radio occultatio...
Preprint
Full-text available
We present a multi-sensor archive collecting spatial and temporal information about volcanic SO2 clouds generated by the eleven largest eruptions of this century. The detection and monitoring of volcanic clouds is an important topic for aviation management, climate issues and weather forecast. Several papers have been published focusing on single e...
Article
Full-text available
In recent years, some volcanic eruptions have focused scientists’ attention on the detection and monitoring of volcanic clouds, as their impact on the air traffic control system has been unprecedented. In 2010, the Eyjafjallajökull eruption forced the disruption of the airspace of several countries, generating one of the largest air traffic shutdow...
Preprint
Full-text available
Tropical Cyclones (TC) are natural destructive phenomena, which affect wide tropical and subtropical areas every year. Although the correct prediction of their tracks and intensity has improved over recent years, the knowledge about their structure and development is still insufficient. The Global Navigation Satellite System (GNSS) Radio Occultatio...
Conference Paper
Full-text available
Explosive volcanic eruptions can generate ash and SO2 clouds rising to the stratosphere and dispersing on a global scale. Such volcanic features are at the origin of many hazards including aircraft engine damages, ash fallouts, acid rains, short-term climate changes and health threats. It is thus crucial to monitor volcanic clouds altitude and disp...
Conference Paper
Full-text available
Monitoring and predicting extreme atmospheric events, such as deep convective systems, is very challenging especially when they develop locally in a short time range. Despite the great improvement in model parametrization and the use of satellite measurements, there are still large uncertainties on the knowledge of the dynamical processes of deep c...
Article
Full-text available
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Article
Full-text available
Volcanic activity occurring in tropical moist atmospheres can promote deep convection and trigger volcanic thunderstorms. These phenomena, however, are rarely observed to last continuously for more than a day and so insights into the dynamics, microphysics and electrification processes are limited. Here we present a multidisciplinary study on an ex...
Article
Full-text available
GPS tomography has been investigated since 2000 as an attractive tool for retrieving the 3D field of water vapour and wet refractivity. However, this observational technique still remains a challenging task that requires improvement of its methodology. This was the purpose of this study, and for this, GPS data from the Australian Continuously Opera...
Conference Paper
Full-text available
In the last few years, many studies claimed that machine learning tools would soon overperform the classical conceptual models in extreme rainfall events forecasting. In order to better investigate this statement, we implement advanced deep learning predictors, such as the deep neural nets, for the forecasting of the occurrence of extreme rainfalls...
Article
Full-text available
The products of explosive volcanic eruptions, in particular, volcanic ash, can pose a severe hazard to, for example, international aviation. Detecting volcanic clouds and monitoring their dispersal is hence, the subject of intensive current research. However, the discrepancies between the different available methods lead to detected cloud altitude...
Article
Full-text available
In this paper we review the contributions of GNSS ground-based and radio occultation receivers to the understanding and prediction of severe weather phenomena around the world. These ground- and space-based GNSS observations, which are complementary to other in-situ and remotely sensed observations, are sensitive to the temperature and water vapor...
Conference Paper
Full-text available
Large amounts of ash, aerosols and gases can be ejected from volcanoes during explosive eruptions into the troposphere, and occasionally into the stratosphere, affecting the atmospheric structure, human society and economy, and life on Earth in general both near and far away from the source. Detecting volcanic cloud top and bottom height at high ve...
Article
Full-text available
Using data from the Continuously Operating Reference Stations (CORS), recorded in March 2010 during severe weather in the Victoria State, in southern Australia, sensitivity and statistical results of GPS tomography retrievals (water vapour density and wet refractivity) from 5 models have been tested and verified – considering independent observatio...
Article
Full-text available
In February 2017 the “Carbonaceous Aerosol in Rome and Environs (CARE)” experiment was carried out in downtown Rome to address the following specific questions: what is the color, size, composition, and toxicity of the carbonaceous aerosol in the Mediterranean urban background area of Rome? The motivation of this experiment is the lack of understan...
Article
Full-text available
The altitude of volcanic clouds and the atmospheric thermal structure after volcanic eruptions are studied using Global Navigation Satellite System (GNSS) Radio Occultation (RO) profiles co-located with independent radiometer images of ash and sulfur dioxide plumes. We use geographically co-located RO profiles to detect the top altitude of volcanic...
Article
Full-text available
We investigate the short-term effects of air temperature, rainfall, and socioeconomic indicators on malaria incidence across Rwanda and Uganda from 2002 to 2011. Delayed and nonlinear effects of temperature and rainfall data are estimated using generalised additive mixed models with a distributed lag nonlinear specification. A time series cross-val...
Article
Full-text available
The volcanic cloud top altitude and the atmospheric thermal structure after volcanic eruptions are studied using Global Positioning System (GPS) Radio Occultation (RO) profiles co-located with independent radiometric measurements of ash and SO2 clouds. We use the GPS RO data to detect volcanic clouds and to analyze their impact on climate in terms...
Article
Full-text available
A new deforestation and land-use change scenario generator model (FOREST-SAGE) is presented that is designed to interface directly with dynamic vegetation models used in latest generation earth system models. The model requires a regional-scale scenario for aggregate land-use change that may be time-dependent, provided by observational studies or b...
Article
It is well known that the use of the Global Navigation Satellite Systems (GNSS), both with ground-based and Low Earth Orbit (LEO) receivers, allows to retrieve atmospheric parameters in all the weather conditions. Ground-based GNSS technique provides the integrated precipitable water vapor (IPWV) with temporal continuity at a specific receiver sta...
Article
Full-text available
The thermal structure of tropical cyclones (TCs) in different ocean basins is studied using global positioning system (GPS) radio occultation (RO) measurements co-located with TCs' best tracks. The objective of this work is to understand the mutual influence of TCs and atmospheric parameters in different regions. We selected more than 20 000 GPS RO...
Conference Paper
Full-text available
Deep convective systems, also more casually often just called storms, are destructive weather phenomena causing every year many deaths, injuries and damages and accounting for major economic losses in several countries. The number and intensity of such phenomena increased over the last decades in some areas of the globe, including Europe. Damages a...
Conference Paper
During the night of 12 to 13 June 2011 an explosive eruption occurred at the Nabro volcano located in Eritrea (13.4°N, 41.7°E). This has been recognized as the largest volcanic eruption since Pinatubo 1991, ejecting ash and sulfur dioxide (SO2) into the atmosphere, spreading over more than 60 degrees in latitude and more than 100 degrees in longitu...
Conference Paper
Full-text available
Teaching science at elementary school is a hard work for scientists since we usually use to talk to colleagues by using technical and specific words not understandable by general public and school students. Finding plain language for explaining what is the research and for describing scientific topics, was the objective of this work. In collaborat...
Conference Paper
Volcanic explosive eruptions affect societal, economic, and political activities. Major explosive eruptions can also impact the Earth’s climate. They inject huge amounts of gas, aerosol, and ash into the upper troposphere and lower stratosphere (UTLS) causing increased reflection of solar radiation back to space and cooling the Earth's troposphere....
Article
Full-text available
The thermal structure of Tropical Cyclones (TCs) in different ocean basins is studied using Global Positioning System (GPS) Radio Occultation (RO) measurements co-located with TCs' best tracks. The objective of this work is to understand the mutual influence of TCs and atmospheric parameters in different regions. We selected 5 more than 20 000 GPS...
Article
Full-text available
The thermal structure of Tropical Cyclones (TCs) in different ocean basins is studied using Global Positioning System (GPS) Radio Occultation (RO) measurements co-located with TCs' best tracks. The objective of this work is to understand the mutual influence of TCs and atmospheric parameters in different regions. We selected more than 20 000 GPS RO...
Conference Paper
Full-text available
Tropical cyclones (TCs) are extreme weather events causing every year huge damages and several deaths.In some countries they are the natural catastrophes accounting for the major economic damages. The thermal structure of TCs gives important information on the cloud top height allowing for a better understanding of the troposphere-stratosphere tran...
Conference Paper
Volcanic explosive eruptions affect economic, political and cultural activities. Major explosive eruptions, such as Mount Pinatubo in 1991, can also impact the Earth’s climate. They inject huge amounts of gas, aerosol and ash into the upper troposphere and lower stratosphere (UTLS) causing increased reflection of solar radiation back to space and c...
Conference Paper
Full-text available
The Global Positioning System (GPS) Radio Occultation (RO) method provides estimation of atmospheric parameters such as bending angle, refractivity, temperature, pressure and water vapor with high accuracy, high vertical resolution and global coverage. We have used the WEGC OPSv5.6 dataset of GPS RO, collected in the period 2001-2012 from differen...
Conference Paper
Deep convective systems play a fundamental role in atmospheric circulation and climate. Convective Systems (CS) and Tropical Cyclones (TC) strongly contribute to the atmospheric circulation producing vertical transport, redistributing water vapor and trace gases and changing the thermal structure of the Upper Troposphere - Lower Stratosphere (UTLS)...
Conference Paper
Tropical deep convection is a key component of the climate system, influencing atmospheric processes including the radiative budget, water vapor transport, and the physics and chemistry of the upper troposphere and lower stratosphere. Accurate determination of cloud top for convective systems and tropical cyclones plays an important role for quanti...
Article
[1] The accurate determination of tropical cyclone (TC) cloud-top height and its vertical thermal structure using the GPS radio occultation (RO) technique is demonstrated in this study. Cloud-top heights are determined by using the bending angle anomaly and the temperature anomaly profiles during the TC events, and the results are compared to near-...
Article
Full-text available
Deforestation has long been considered a critical issue for the future preservation of ecosystems. Many studies highlight the strong impact that land-use change can have on both the local and regional climate through albedo and surface flux changes as well as the indirect CO2 response, using both regional and global models. Deforestation estimates...
Article
Full-text available
The Global Positioning System (GPS) Radio Occultation (RO) technique provides estimates of atmospheric density, temperature, and water vapour content with high vertical resolution, global coverage, and high accuracy. We have used data acquired using this technique in the period 1995–2009 to create a reference climatology of radio occultation bendin...
Article
Full-text available
The Global Positioning System (GPS) Radio Occultation (OR) technique provides estimates of atmospheric density, temperature, and water vapour content with high vertical resolution, global coverage, and high accuracy. We have used data acquired using this technique in the period 1995–2009 to create a reference climatology of radio occultation bendin...
Article
Full-text available
Thermal structure associated with deep convective clouds is investigated using Global Positioning System (GPS) radio occultation measurements. GPS data are insensitive to the presence of clouds, and provide high vertical resolution and high accuracy measurements to identify associated temperature behavior. Deep convective systems are identified usi...
Article
Full-text available
Thermal structure associated with deep convective clouds is investigated using Global Positioning System (GPS) radio occultation measurements. GPS data are insensitive to the presence of clouds, and provide high vertical resolution and high accuracy measurements to identify associated temperature behavior. Deep convective systems are identified usi...
Article
Full-text available
The tropical deep convection affects the radiation balance of the atmosphere changing the water vapor mixing ratio and the temperature of the upper troposphere lower stratosphere. The aim of this work is to better understand these processes and to investigate if severe storms leave a significant signature in radio occultation profiles in the tropic...
Article
Full-text available
The tropical deep convection affects the radiation balance of the atmosphere changing the water vapor mixing ratio and the temperature of the upper troposphere lower stratosphere. The aim of this work is to better understand these processes and to investigate if severe storms leave a significant signature in radio occultation profiles in the tropic...
Article
Water vapour transport to the upper troposphere and lower stratosphere by deep convective storms affects the radiation balance of the atmosphere and has been proposed as an important component of climate change. The aim of the work presented here is to understand if the GPS radio occultation technique is useful for characterization of this process....
Article
Full-text available
Weather represents the daily state of the atmosphere. It is usually considered as a chaotic nonlinear dynamical system. The objectives of the present study were (1) to investigate multifractal meteorological trends and rhythms at the Amazonian area of Ecuador and (2) to estimate some nonlinear invariants for describing the meteorological dynamics....
Article
Full-text available
In this work, the trend of the Urban Heat Island (UHI) of Rome is analyzed by both ground-based weather stations and a satellite-based infrared sensor. First, we have developed a suitable algorithm employing satellite brightness temperatures for the estimation of the air temperature belonging to the layer of air closest to the surface. UHI spatial...
Conference Paper
The tropical deep convection affects the radiation balance of the atmosphere changing the water vapour mixing ratio and the temperature of the upper troposphere and lower stratosphere. To gain a better understanding of deep convective processes, the study of tropical cyclones could play an important role since they lead to deep convective activity....