Articles | Volume 18, issue 14
https://doi.org/10.5194/amt-18-3585-2025
https://doi.org/10.5194/amt-18-3585-2025
Research article
 | 
31 Jul 2025
Research article |  | 31 Jul 2025

The Atmospheric Sounder Spectrometer by Infrared Spectral Technology (ASSIST): instrument design and signal processing

Vincent Michaud-Belleau, Michel Gaudreau, Jean Lacoursière, Éric Boisvert, Lalaina Ravelomanantsoa, David D. Turner, and Luc Rochette

Related authors

Propagating information content: an example with advection
David D. Turner, Maria P. Cadeddu, Julia M. Simonson, and Timothy J. Wagner
Atmos. Meas. Tech., 18, 3533–3546, https://doi.org/10.5194/amt-18-3533-2025,https://doi.org/10.5194/amt-18-3533-2025, 2025
Short summary
COSP-RTTOV-1.0: Flexible radiation diagnostics to enable new science applications in model evaluation, climate change detection, and satellite mission design
Jonah K. Shaw, Dustin J. Swales, Sergio DeSouza-Machado, David D. Turner, Jennifer E. Kay, and David P. Schneider
EGUsphere, https://doi.org/10.5194/egusphere-2025-169,https://doi.org/10.5194/egusphere-2025-169, 2025
Short summary
Evaluating the ability of the operational High Resolution Rapid Refresh model version 3 (HRRRv3) and version 4 (HRRRv4) to forecast wind ramp events in the US Great Plains
Laura Bianco, Reagan Mendeke, Jake Lindblom, Irina V. Djalalova, David D. Turner, and James M. Wilczak
Wind Energ. Sci. Discuss., https://doi.org/10.5194/wes-2024-133,https://doi.org/10.5194/wes-2024-133, 2024
Revised manuscript accepted for WES
Short summary
Improving solution availability and temporal consistency of an optimal-estimation physical retrieval for ground-based thermodynamic boundary layer profiling
Bianca Adler, David D. Turner, Laura Bianco, Irina V. Djalalova, Timothy Myers, and James M. Wilczak
Atmos. Meas. Tech., 17, 6603–6624, https://doi.org/10.5194/amt-17-6603-2024,https://doi.org/10.5194/amt-17-6603-2024, 2024
Short summary
Improving the estimate of higher-order moments from lidar observations near the top of the convective boundary layer
Tessa E. Rosenberger, David D. Turner, Thijs Heus, Girish N. Raghunathan, Timothy J. Wagner, and Julia Simonson
Atmos. Meas. Tech., 17, 6595–6602, https://doi.org/10.5194/amt-17-6595-2024,https://doi.org/10.5194/amt-17-6595-2024, 2024
Short summary

Related subject area

Subject: Others (Wind, Precipitation, Temperature, etc.) | Technique: Remote Sensing | Topic: Instruments and Platforms
Characterization of surface clutter signal in the presence of orography for a spaceborne conically scanning W-band Doppler radar
Francesco Manconi, Alessandro Battaglia, and Pavlos Kollias
Atmos. Meas. Tech., 18, 2295–2310, https://doi.org/10.5194/amt-18-2295-2025,https://doi.org/10.5194/amt-18-2295-2025, 2025
Short summary
Spectral performance analysis of the Fizeau interferometer on board ESA's Aeolus wind lidar satellite
Michael Vaughan, Kevin Ridley, Benjamin Witschas, Oliver Lux, Ines Nikolaus, and Oliver Reitebuch
Atmos. Meas. Tech., 18, 2149–2181, https://doi.org/10.5194/amt-18-2149-2025,https://doi.org/10.5194/amt-18-2149-2025, 2025
Short summary
Tracking traveling ionospheric disturbances through Doppler-shifted AM radio transmissions
Claire C. Trop, James LaBelle, Philip J. Erickson, Shun-Rong Zhang, David McGaw, and Terrence Kovacs
Atmos. Meas. Tech., 18, 1909–1925, https://doi.org/10.5194/amt-18-1909-2025,https://doi.org/10.5194/amt-18-1909-2025, 2025
Short summary
Calibration of Weather Radars with a Target Simulator
Marc Schneebeli, Andreas Leuenberger, Philipp J. Schmid, Jacopo Grazioli, Heather Corden, Alexis Berne, Patrick Kennedy, Jim George, Francesc Junyent, and V. Chandrasekar
EGUsphere, https://doi.org/10.5194/egusphere-2025-1702,https://doi.org/10.5194/egusphere-2025-1702, 2025
Short summary
Feasibility of a space-borne terahertz heterodyne spectrometer for atomic oxygen and temperature in the mesosphere and lower thermosphere
Peder Bagge Hansen, Martin Wienold, and Heinz-Wilhelm Hübers
EGUsphere, https://doi.org/10.5194/egusphere-2024-3648,https://doi.org/10.5194/egusphere-2024-3648, 2025
Short summary

Cited articles

Adler, B., Wilczak, J. M., Bianco, L., Bariteau, L., Cox, C. J., de Boer, G., Djalalova, I. V., Gallagher, M. R., Intrieri, J. M., Meyers, T. P., Myers, T. A., Olson, J. B., Pezoa, S., Sedlar, J., Smith, E., Turner, D. D., and White, A. B.: Impact of Seasonal Snow-Cover Change on the Observed and Simulated State of the Atmospheric Boundary Layer in a High-Altitude Mountain Valley, Geophys. Res.-Atmos., 128, e2023JD038497, https://doi.org/10.1029/2023JD038497, 2023. a
Adler, B., Turner, D. D., Bianco, L., Djalalova, I. V., Myers, T., and Wilczak, J. M.: Improving solution availability and temporal consistency of an optimal-estimation physical retrieval for ground-based thermodynamic boundary layer profiling, Atmos. Meas. Tech., 17, 6603–6624, https://doi.org/10.5194/amt-17-6603-2024, 2024. a
Babar, S. and Weaver, J. H.: Optical constants of Cu, Ag, and Au revisited, Appl. Optics, 54, 477–481, https://doi.org/10.1364/AO.54.000477, 2015. a
Bianco, L., Adler, B., Bariteau, L., Djalalova, I. V., Myers, T., Pezoa, S., Turner, D. D., and Wilczak, J. M.: Sensitivity of thermodynamic profiles retrieved from ground-based microwave and infrared observations to additional input data from active remote sensing instruments and numerical weather prediction models, Atmos. Meas. Tech., 17, 3933–3948, https://doi.org/10.5194/amt-17-3933-2024, 2024. a
Buijs, H. L. and McKinnon, J.: Two-beam interferometer for Fourier transform spectroscopy with double pivot scanning mechanism, US7480055B2, 2009. a, b
Download
Short summary
The Atmospheric Sounder Spectrometer by Infrared Spectral Technology (ASSIST) is a commercially available ground-based infrared spectroradiometer. It is designed for automated and passive measurement of the thermal radiation emitted by the atmosphere, providing information about the vertical distribution of temperature and humidity, trace gases, clouds, and aerosols in the boundary layer. In this paper, we outline the key characteristics of the ASSIST hardware and signal processing algorithm that yields downwelling radiance spectra in near real-time.
Share