A5043841367- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Spectroscopy and Laser Applications
- Meteorological Phenomena and Simulations
- Atmospheric chemistry and aerosols
- Laser Design and Applications
- Atmospheric Ozone and Climate
- Solid State Laser Technologies
- Ocular and Laser Science Research
- Marine and coastal ecosystems
- Calibration and Measurement Techniques
- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Wind and Air Flow Studies
- Climate variability and models
- Laser-induced spectroscopy and plasma
- Advanced Optical Sensing Technologies
- Combustion and flame dynamics
- Aeolian processes and effects
- Oil Spill Detection and Mitigation
- Plant Water Relations and Carbon Dynamics
University of Basilicata
2021-2024
Abstract This manuscript compares measurements of aerosol size distributions and microphysical properties retrieved from the Raman lidar BASIL with those obtained a series aircraft sensors during HyMeX‐SOP1. The attention is focused on measurement session 02 October 2012, revealing presence lower layer extending up to 3.3 km an elevated 3.6 4.6 km. Aerosol distribution are determined multi‐wavelength particle backscattering extinction profile through retrieval approach based Tikhonov...
This work stems from the idea of improving capability to measure atmospheric boundary layer height (ABLH) in variable or unstable weather conditions presence turbulence and precipitation events. A new approach based on use rotational roto-vibrational Raman lidar signals is considered tested. The traditional gradient elastic at wavelength 532 nm also considered. Lidar data collected by University Basilicata (BASIL) within Special Observation Period 1 (SOP 1) Cardillargues (Ceveninnes–CV...
The Lidar Ocean Color (LiOC) Monte Carlo code has been developed to simulate the in-water propagation of lidar beam emitted by ALADIN ADM-Aeolus instrument in ultraviolet (UV) spectral region (∼ 355 nm). To this end, LiOC accounts for reflection/transmission processes at sea surface, absorption and multiple scattering water volume, reflection from bottom. volume components included model are pure seawater, Chlorophyll-a concentration (Chl-a), Colored Dissolved Organic Matter (CDOM), and/or a...
Abstract. This paper reports results from an inter-comparison effort involving different sensors and models used to measure the atmospheric boundary layer height (ABLH). The took place in framework of first Special Observing Period Hydrological Cycle Mediterranean Experiment (HyMeX-SOP1), with Raman lidar system BASIL deployed Candillargues (southern France) operating almost continuous mode over time period September–November 2012. ABLH estimates were obtained based on application Richardson...
Abstract. We assess the temperature stability requirements of unseeded Nd:YAG lasers in lidar systems for atmospheric profiling through rotational Raman technique. Taking as a reference system using seeded laser assumed to emit pulses negligible spectral width and wavelength-drift free, we estimate first effect pulse widening on output interference filters, then derive limits allowable wavelength drift given bias measurement that would add noise-induced uncertainty. Finally, spectroscopic...
The Raman lidar technique to measure atmospheric temperature profiles is based on the dependence of intensity N2 and O2 rotational lines [1]. requires very good stability laser wavelength, or frequent recalibrations, avoid errors in retrieved produced by wavelength drifts.  Frequency doubled tripled Nd:YAG lasers are usually employed implement this technique. To achieve stability, injection-seeded used that transfer seeder high-power [2]; has also consequence narrowing spectrum...
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Abstract. We assess the temperature stability requirements of unseeded Nd:YAG lasers in lidar systems for atmospheric profiling through rotational Raman technique. Taking as a reference system using seeded laser assumed to emit pulses negligible spectral width and free wavelength drifts, we estimate first effect pulse widening on output interference filters, then derive limits allowable drift given bias measurement that would add noise-induced uncertainty. Finally, spectroscopic data, relate...
The Cloud and Aerosol Lidar for Global Scale Observations of the Ocean-Land-Atmosphere System (CALIGOLA) is an advanced multi-purpose space lidar mission with a focus on atmospheric oceanic observation aimed at characterizing Ocean-Earth-Atmosphere system mutual interactions within it. This has been conceived by Italian Space Agency (ASI) aim to provide international ocean science communities unprecedented dataset geophysical parameters capable increase scientific knowledge in areas...
The crucial parameter for characterizing the energy exchange between Earth's surface and atmosphere within Atmospheric Boundary Layer (ABL) is latent heat flux (LHF). This represents speed at which stored as in water vapor molecules transported into ABL due to turbulent convective movement of air. integration both lidar measurements provides a comprehensive perspective on atmospheric processes related flux, significantly contributing improving understanding cycle associated meteorological...
It was for long time believed that lidar systems based on the use of high-repetition micro-pulse lasers could be effectively used to only stimulate atmospheric elastic backscatter echoes, and thus exploited in systems. Their application rotational roto-vibrational Raman consequently their exploitation thermodynamic profiling, considered not feasible technical specifications possessed by these laser sources until a few years ago. However, recent technological advances design development...
During the last decade, new applications exploiting data from satellite borne lidar measurements demonstrated that these sensors can give valuable information about ocean optical properties [1,2,3]. Within this framework, COLOR (CDOM-proxy retrieval aeOLus ObseRvations) consisted in a 18-month feasibility study approved by ESA within Aeolus+ Innovation program. had objective to evaluate and document of deriving an in-water prototype product analysis signal acquired Earth Explorer Wind...
The performance of a spaceborne Raman lidar offering measurements water vapor, temperature, aerosol backscatter and extinction is assessed statistically by use simulator global model to provide inputs for simulation. candidate thermodynamics system envisioned make sun-synchronous, dawn/dusk orbit. Cloud-free atmospheric profiles simulated the NASA/GSFC GEOS orbit CALIPSO satellite on 15 July 2009 were used as input previously validated where that satisfy solar zenith angle restrictions...
<p>The ESA Earth Explorer Wind Mission ADM-Aeolus (Atmospheric Dynamics Mission), successfully launched on 22 August 2018, has the aim to provide global observations of wind profiles, demonstrating impact profile data operational weather forecasting and climate research. Within Aeolus+ Innovation program, an Invitation To Tender (ITT, AO/1-9544/20/I/NS) carry out studies aimed at exploring, developing validating innovative products applications exploiting novel nature Aeolus...
A network of water vapor Raman lidars  WaLiNeas (Lidar Network Assimilation) for improving heavy precipitation forecasting in the Mediterranean Sea has been designed among with aim providing measurements high spatial-temporal resolution and accuracy, order to be assimilated into AROME mesoscale models using a four-dimensional ensemble-variational approach 15-min updates. The CONCERNIG Lidar from University Basilicata Wind form CNR–IMAA are co-located Toulone between...
The University of Basilicata, in cooperation with ISMAR-CNR, deployed two compact Raman lidars, namely the system CONCERNING and MARCO, Southern France frame “Water Vapor Lidar Network Assimilation (WaLiNeAs)” experiment. WaLiNeAs, primarily funded by “French National Research Agency” (ANR), is an international field experiment aimed at studying extreme precipitation events improving their predictability through assimilation water vapour profile...
Within the frame of project CONCERNING (COmpact RamaN lidar for Atmospheric CO2 and ThERmodyNamic ProfilING), we investigated feasibility limits a ground-based Raman system dedicated to measurement profiles. The performance was evaluated through set numerical simulations. possibility exploiting both lines ν1:2ν2 resonance explored. An accurate quantification contribution O2 on signal other (e.g., aerosol, absorbing gases) disturbance sources carried out. integration over...
CALIGOLA (Cloud Aerosol Lidar for Global Scale Observations of the Ocean-Land-Atmosphere System) is a mission funded by Italian Space Agency (ASI), aimed at development space-borne Raman Lidar. A Phase study to assess technological feasibility laser source and receiver system currently underway Leonardo S.p.A., while scientific studies in support are conducted University Basilicata. Scientific technical furthermore supported other institutions (CNR-ISMAR, CNR-IMAA), with NASA also having...
It was for a long time believed that lidar systems based on the use of high-repetition micro-pulse lasers could be effectively used to only stimulate atmospheric elastic backscatter echoes, and thus were exploited in systems. Their application rotational roto-vibrational Raman consequently, their exploitation thermodynamic profiling, considered not feasible technical specifications possessed by these laser sources until few years ago. However, recent technological advances design development...
<p>The height of the planetary boundary layer is strongly influenced by surface earth since it directly in contact with it. In this study  we want to discuss correlation between global warming and PBL variation. This addressed using both other thermodynamic indices. In we highlight how variation PBL, together indices, represent an indication climate change. variations are therefore analyzed daytime night case, means radiosonding profiles from Global...
<p>The atmospheric planetary boundary layer (ABL) represents the lower region of atmosphere directly in contact with earth's surface and strongly influenced by this surface. In physical quantities such as flow velocity, temperature humidity exhibit rapid fluctuations associated turbulent motion vertical mixing.</p><p>Characterization is primary importance a variety fields weather forecasting, climate change modeling air quality forecasting therefore...
<p>The Italian space industry, and specifically Leonardo S.p.A., has gained unique skills at an international level in the development of space-qualified power laser sources with for lidar Earth observation applications (Aeolus, EarthCARE). Moreover, S.p.A. optical a consolidated technical-scientific knowledge experience design receiver sub-systems (telescopes, devices sensors)  space applications. The Space Agency (ASI) intends to benefit from long-term expertise...