Preprints
https://doi.org/10.5194/egusphere-2022-1327
https://doi.org/10.5194/egusphere-2022-1327
16 Dec 2022
 | 16 Dec 2022

The Far-Infrared Radiation Mobile Observation System for spectral characterisation of the atmospheric emission

Claudio Belotti, Flavio Barbara, Marco Barucci, Giovanni Bianchini, Francesco D'Amato, Samuele Del Bianco, Gianluca Di Natale, Marco Gai, Alessio Montori, Filippo Pratesi, Markus Rettinger, Christian Rolf, Ralf Sussmann, Thomas Trickl, Silvia Viciani, Hannes Vogelman, and Luca Palchetti

Abstract. The Far-Infrared Radiation Mobile Observation System (FIRMOS) is a Fourier transform spectroradiometer developed to support the Far-infrared Outgoing Radiation Understanding and Monitoring (FORUM) satellite mission by validating measurement methods and instrument design concepts, both in the laboratory and in field campaigns. FIRMOS is capable of measuring the downwelling spectral radiance emitted by the atmosphere in the spectral band from 100 to 1000 cm-1 (10–100 µm in wavelength), with a maximum spectral resolution of 0.25 cm-1. We describe the instrument design and its characterisation and discuss the geophysical products obtained by inverting the atmospheric spectral radiance measured during a campaign from the high-altitude location of Mount Zugspitze in Germany, beside the Extended-range Atmospheric Emitted Radiance Interferometer (E-AERI), which is permanently installed at the site. Following the selection of clear-sky scenes, using a specific algorithm, the water vapour and temperature profiles were retrieved from the FIRMOS spectra by applying the Kyoto protocol and Informed Management of the Adaptation (KLIMA) code. The profiles were found in very good agreement with those provided by radiosondes and by the Raman lidar operating from the Zugspitze Schneefernerhaus station. In addition, the retrieval products were validated by comparing the retrieved Integrated Water Vapour values with those obtained from the E-AERI spectra. Finally, we found that the trends for the temperature, and the water vapour profiles over time were in good agreement with those provided by ERA5 reanalysis.

Journal article(s) based on this preprint

25 May 2023
The Far-Infrared Radiation Mobile Observation System (FIRMOS) for spectral characterization of the atmospheric emission
Claudio Belotti, Flavio Barbara, Marco Barucci, Giovanni Bianchini, Francesco D'Amato, Samuele Del Bianco, Gianluca Di Natale, Marco Gai, Alessio Montori, Filippo Pratesi, Markus Rettinger, Christian Rolf, Ralf Sussmann, Thomas Trickl, Silvia Viciani, Hannes Vogelmann, and Luca Palchetti
Atmos. Meas. Tech., 16, 2511–2529, https://doi.org/10.5194/amt-16-2511-2023,https://doi.org/10.5194/amt-16-2511-2023, 2023
Short summary

Claudio Belotti et al.

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1327', Anonymous Referee #1, 22 Jan 2023
    • AC1: 'Reply on RC1', Claudio Belotti, 16 Mar 2023
  • RC2: 'Comment on egusphere-2022-1327', Anonymous Referee #2, 06 Feb 2023
    • AC2: 'Reply on RC2', Claudio Belotti, 16 Mar 2023

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1327', Anonymous Referee #1, 22 Jan 2023
    • AC1: 'Reply on RC1', Claudio Belotti, 16 Mar 2023
  • RC2: 'Comment on egusphere-2022-1327', Anonymous Referee #2, 06 Feb 2023
    • AC2: 'Reply on RC2', Claudio Belotti, 16 Mar 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Claudio Belotti on behalf of the Authors (16 Mar 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (17 Mar 2023) by Frank Hase
AR by Claudio Belotti on behalf of the Authors (21 Mar 2023)  Manuscript 

Journal article(s) based on this preprint

25 May 2023
The Far-Infrared Radiation Mobile Observation System (FIRMOS) for spectral characterization of the atmospheric emission
Claudio Belotti, Flavio Barbara, Marco Barucci, Giovanni Bianchini, Francesco D'Amato, Samuele Del Bianco, Gianluca Di Natale, Marco Gai, Alessio Montori, Filippo Pratesi, Markus Rettinger, Christian Rolf, Ralf Sussmann, Thomas Trickl, Silvia Viciani, Hannes Vogelmann, and Luca Palchetti
Atmos. Meas. Tech., 16, 2511–2529, https://doi.org/10.5194/amt-16-2511-2023,https://doi.org/10.5194/amt-16-2511-2023, 2023
Short summary

Claudio Belotti et al.

Data sets

FIRMOS - Technical Assistance for a Far-Infrared Radiation Mobile Observation System (EE9 Forum) Luca Palchetti, Marco Barucci, Claudio Belotti, Giovanni Bianchini, Bertrand Cluzet, Francesco D'Amato, Samuele Del Bianco, Gianluca Di Natale, Marco Gai, Dina Khordakova, Alessio Montori, Hilke Oetjen, Markus Rettinger, Christian Rolf, Dirk Schuettemeyer, Ralf Sussmann, Silvia Viciani, Hannes Vogelmann, Frank Gunther Wienhold https://doi.org/10.5270/ESA-38034ee

Claudio Belotti et al.

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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
FIRMOS is a spectroradiometer measuring in the far-infrared, developed to support the preparation of the FORUM satellite mission. In this paper we describe the instrument, its data products and the results of the comparison with a suite of observations made from a high-altitude site during a field campaign, in winter 2018–19.