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Communication Dans Un Congrès Année : 2021

What Characteristics for a Constellation of UVSQ-SAT-like CubeSats to Monitor the Earth's Radiation Budget at the Top Of the Atmosphere

Résumé

The UVSQ-SAT satellite in orbit since January 24, 2021 is the first of a future constellation of CubeSats to monitor the Earth's radiative budget at the top of the atmosphere. Its first observations already reveal the scientific relevance of miniaturized remote sensors to obtain resolved maps of outgoing shortwave and longwave radiations. Only a constellation of satellites in Low Earth Orbit allows to reach a spatio-temporal resolution of about 10-100 km and 3 hours to cover the whole planet. These measurements are relevant only if one can reach an accuracy of 1 Wm-2 to characterize the radiative forcing. For this, we developed a numerical tool to simulate the observations according to the orbital parameters and the field of view of the satellites. This tool reconstructs maps of fluxes using the ERA5 model to study the characteristics of the satellite constellation to meet scientific requirements. We will see how this tool is useful to prepare the orbiting of the second INSPIRE-Sat 7 satellite and how the observations made by UVSQ-SAT allow to validate the simulations.
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insu-04464219 , version 1 (18-02-2024)

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Thomas Bouteraon, Mustapha Meftah, Christophe Dufour, Adrien Finance, Philippe Keckhut. What Characteristics for a Constellation of UVSQ-SAT-like CubeSats to Monitor the Earth's Radiation Budget at the Top Of the Atmosphere. AGU Fall Meeting 2021, Dec 2021, New Orleans, United States. pp.id. IN44A-05. ⟨insu-04464219⟩
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