A5037579738- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Calibration and Measurement Techniques
- Atmospheric aerosols and clouds
- Spectroscopy and Laser Applications
- Atmospheric chemistry and aerosols
- Photonic and Optical Devices
- Meteorological Phenomena and Simulations
- Cryospheric studies and observations
- Infrared Target Detection Methodologies
- Semiconductor Lasers and Optical Devices
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Radiative Heat Transfer Studies
- Photoreceptor and optogenetics research
- Polydiacetylene-based materials and applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Fiber Optic Sensors
- Icing and De-icing Technologies
- Spacecraft and Cryogenic Technologies
- Ionosphere and magnetosphere dynamics
- Mechanical and Optical Resonators
- Solar and Space Plasma Dynamics
- Acoustic Wave Resonator Technologies
- Satellite Image Processing and Photogrammetry
National Research Council
2016-2023
National Institute of Optics
2014-2023
Instituto de Óptica "Daza de Valdés"
2021
Istituto Nanoscienze
2020
Nello Carrara Institute of Applied Physics
2003-2013
University of Basilicata
2009
National Research Council - Institute of Methodologies for Environmental Analysis
2009
University of Bologna
2009
Sapienza University of Rome
2009
State University of New York
2009
This paper presents the project Earth Cooling by Water Vapor Radiation, an observational programme, which aims at developing a database of spectrally resolved far infrared observations, in atmospheric dry conditions, order to validate radiative transfer models and test quality water vapor continuum line parameters. The provides very first set far‐infrared spectral downwelling radiance measurements, are complemented with Raman Lidar‐derived temperature profiles.
The paper presents a review of the far‐infrared (FIR) properties Earth's atmosphere and their role in climate. These have been relatively poorly understood, it is one purposes this to demonstrate that recent years we made great strides improving understanding. Seen from space, Earth cool object, with an effective emitting temperature about 255 K. This contrasts global mean surface ∼288 K due primarily strong absorption outgoing longwave energy by water vapor, carbon dioxide, clouds...
Abstract The outgoing longwave radiation (OLR) emitted to space is a fundamental component of the Earth’s energy budget. There are numerous, entangled physical processes that contribute OLR and responsible for driving, responding to, climate change. Spectrally resolved observations can disentangle these processes, but technical limitations have precluded accurate space-based spectral measurements covering far infrared (FIR) from 100 667 cm −1 (wavelengths between 15 µ m). FIR spectrum thus...
Abstract Water vapor and clouds are among the most important greenhouse components whose radiative features cover all broad spectral range of thermal emission atmosphere. Typically more than 40% total Earth occurs in far-infrared (FIR) region from 100 to 667 cm−1 (wavelengths 15 µm). Nevertheless, this has not ever been fully covered down by space missions, only a few ground-based experiments exist because difficulty performing measurements high altitude very dry locations where atmosphere...
Abstract The second Radiative Heating in Underexplored Bands Campaign (RHUBC‐II) was conducted 2009 by the U.S. Department of Energy Atmospheric Radiation Measurement program to improve water vapor spectroscopy far‐infrared spectral region. RHUBC‐II located an extremely dry region Chile ensure very low opacities this Spectrally resolved measurements a spectrometer and submillimeter interferometer from are compared with line‐by‐line radiative transfer model calculations. Water amounts...
Abstract The thermal emission of cirrus clouds, spectrally resolved in the 100–1400 cm −1 range (100–7.1 μm), has been modeled and compared with measurements performed during two field campaigns from ground‐based site Testa Grigia on Italian Alps at 3480 m altitude. analysis microphysics, through spectral fitting, shows importance using also far infrared portion emitted spectrum wave numbers below 667 carbon dioxide absorption band, where only a few exist because high opacity atmosphere...
FORUM (Far-infrared Outgoing Radiation Understanding and Monitoring) has been approved to be the ninth Earth Explorer mission of European Space Agency. The is scheduled for launch on a Polar satellite in 2025–2026 time frame. core instrument Fourier Transform Spectrometer measuring, with very high accuracy, upwelling spectral radiance, from 100 1600 cm − 1 (from 6.25 microns wavelength), thus covering Far-Infrared (FIR), Mid-Infrared (MIR) portion spectrum emitted by Earth. will fly loose...
Abstract. The Radiation Explorer in the Far Infrared – Prototype for Applications and Development (REFIR-PAD) is a Fourier transform spectroradiometer that has been designed to operate from both stratospheric balloon platforms ground. It successfully deployed flight several ground-based campaigns high-altitude sites, including current installation at Italian–French Concordia Antarctic station. instrument capable of operating autonomously with only limited need remote control monitoring...
Optical and microphysical cloud properties are retrieved from measurements acquired in 2013 2014 at the Concordia base station Antarctic Plateau. Two sensors used synergistically: a Fourier transform spectroradiometer named REFIR-PAD (Radiation Explorer Far Infrared-Prototype for Applications Developments) backscattering-depolarization LiDAR. First, order to identify cloudy scenes assess thermodynamic phase, spectral radiances ingested by machine learning algorithm called Cloud...
Abstract. Statistics on the occurrence of clear skies, ice clouds, and mixed-phase clouds over Concordia Station, in Antarctic Plateau, are provided for multiple timescales analyzed relation to simultaneous meteorological parameters measured at surface. Results obtained by applying a machine learning cloud identification classification (CIC) code 4 years measurements between 2012–2015 downwelling high-spectral-resolution radiances, Radiation Explorer Far Infrared – Prototype Applications...
The uncertainties in the cloud radiative properties are main cause of biases fluxes both at top atmosphere and surface (Di Natale et al. 2022). This study aims providing an in-depth characterisation clouds occurrence on Antarctic Plateau by analyzing extensive dataset spectrally resolved downwelling radiances far- mid-infrared region spectrum (200 − 1000 cm-1). Observations were performed REFIR-PAD (Radiation Explorer Far Infrared—Prototype for Applications Development)...
In December, 2011 the REFIR-PAD Fourier transform spectroradiometer was installed in Concordia Station, Antarctica to perform continuous monitoring of atmospheric downwelling emitted radiance middle-far infrared region. The is supported by several auxiliary instruments monitor ground and sky conditions and, since 2020, a compact lidar sensor provide cloud structure lower troposphere boundary layer region, thus establishing complete integrated set sensors for Antarctic troposphere.The main...
The paper presents a novel methodology to retrieve the foreign-broadened water vapor continuum absorption coefficients in spectral range 240 590 cm -1 and is first estimation of coefficient at wave numbers smaller than 400 under atmospheric conditions.The derivation has been accomplished by processing suitable set emitted radiance observations obtained during March 2007 Alps campaign ECOWAR project (Earth COoling WAter Radiation).It shown that, 450 600 , our findings are good agreement with...
A field experiment was conducted in northern Chile at an altitude of 5.3 km to evaluate the accuracy line‐by‐line radiative transfer models regions spectrum that are typically opaque sea level due strong water vapor absorption. suite spectrally resolved radiance instruments collected simultaneous observations that, for first time ever, spanned entire terrestrial thermal (i.e., from 10 3000 cm −1 , or 1000 3.3 μ m). These observations, together with collocated and temperature profiles, used...
Abstract. The possibility separating the contributions of atmospheric state and ice clouds by using spectral infrared measurements is a fundamental step to quantifying cloud effect in climate models. A simultaneous retrieval parameters from wideband spectra will allow disentanglement interference between these variables. In this paper, we describe development code for parameters, its application analysis acquired Radiation Explorer Far Infrared – Prototype Applications Development...
Abstract One year (2013) of high spectral resolution measurements downwelling radiance in the 100–1,400 cm −1 range, taken by Fourier Transform Spectrometer REFIR‐PAD at research station Concordia (Antarctic Plateau), is analyzed. Optically thin ice clouds are identified means a new identification/classification tool based on Support Vector Machine algorithm. The use transparent microwindow channels Far InfraRed (FIR) region (100–667 ) shown to be great importance identification and...
Abstract. The Far-Infrared Radiation Mobile Observation System (FIRMOS) is a Fourier transform spectroradiometer developed to support the Far-infrared Outgoing Understanding and Monitoring (FORUM) satellite mission by validating measurement methods instrument design concepts, both in laboratory field campaigns. FIRMOS capable of measuring downwelling spectral radiance emitted atmosphere band from 100 1000 cm−1 (10–100 µm wavelength), with maximum resolution 0.25 cm−1. We describe its...
This work presents the results concerning analysis of a set atmospheric emitted (down welling) spectral radiance observations in range 180 to 1100 cm -1 acquired at Dome-C site Antarctica during an extensive field campaign 2011-2012.The has been mainly focused on retrieving and validating coefficients foreign contribution water vapour continuum absorption, within overlapping rotational band.Retrievals have performed by using simultaneous physical retrieval procedure for spectroscopic...
Abstract. Measurements of the spectrum atmospheric emission in far-infrared (FIR) range, between 100 and 667 cm−1 (100–15 µm) are scarce because detection complexity strong absorption air at ground level preventing sounding FIR from low altitude. Consequently, measurements need to be made high-altitude sites or on board airborne platforms satellites. This paper describes dataset spectral radiances atmosphere snow surface measured 100–1000 range by Far-Infrared Radiation Mobile Observation...
Abstract. The first spectral measurement of Earth's emitted radiation to space in the wideband range from 100 1400 cm−1 with 0.5 resolution is presented. was performed a stratospheric balloon tropical region using Fourier transform spectrometer, during field campaign held Brazil June 2005. instrument, which has uncooled components including detector module, prototype developed as part study for REFIR (Radiation Explorer Far InfraRed) mission. This paper shows results particular attention...
Abstract. Our understanding of global warming depends on the accuracy with which atmospheric components that modulate Earth's radiation budget are known. Many uncertainties still exist as regards radiative effect water in different spectral regions, among is far infrared, where very few observations have been made. An assessment shown outgoing flux obtained from a balloon-borne platform wideband spectrally-resolved nadir measurements at top atmosphere over full range, 100 to 1400 cm−1, made...
In preparation for a possible space mission, breadboard version named REFIR-BB of the Radiation Explorer in Far Infrared (REFIR) instrument has been built. The REFIR is Fourier-transform spectrometer with new optical layout operating spectral range 100–1100 cm−1 resolution 0.5 cm−1, a7-s acquisition time, and signal-to-noise ratio better than 100. Its mission measurement far infrared Earth's outgoing emission, particular attention to long-wavelength region, which not covered by either...