Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Mapping the Melatonin Suppression, Star Light and Induced Photosynthesis Indices with the LANcube

Martin Aubé
* ORCID logo ,
Charles Marseille
,
Ammar Farkouh
,
Adam Dufour
,
Alexandre Simoneau
,
Jaime Zamorano
ORCID logo ,
Johanne Roby
,
Carlos Tapia
Version 1 : Received: 10 November 2020 / Approved: 12 November 2020 / Online: 12 November 2020 (12:20:35 CET)

A peer-reviewed article of this Preprint also exists.

Aubé, M.; Marseille, C.; Farkouh, A.; Dufour, A.; Simoneau, A.; Zamorano, J.; Roby, J.; Tapia, C. Mapping the Melatonin Suppression, Star Light and Induced Photosynthesis Indices with the LANcube. Remote Sens. 2020, 12, 3954. Aubé, M.; Marseille, C.; Farkouh, A.; Dufour, A.; Simoneau, A.; Zamorano, J.; Roby, J.; Tapia, C. Mapping the Melatonin Suppression, Star Light and Induced Photosynthesis Indices with the LANcube. Remote Sens. 2020, 12, 3954.

Abstract

Increased exposure to artificial light at night can affect human health including disruption of melatonin production and circadian rhythms and extend to increased risks of hormonal cancers and other serious diseases. In addition, multiple negative impacts on fauna and flora are well documented, and it is a matter of fact that artificial light at night is a nuisance for ground-based astronomy. These impacts are frequently linked to the colour of the light or more specifically to its spectral content. Artificial light at night is often mapped by using space borne sensors, but most of them are panchromatic and thus insensitive to the colour. In this paper, we suggest a method that allows high resolution mapping of the Artificial light at night by using ground-based measurements with the LANcube system. The device separates the light detected in four bands (Red, Green, Blue, and Clear) and provides this information for six faces of a cube. We found relationships between the LANcube’s colour ratios and 1- the Melatonin Suppression Index, 2- the StarLight Index and 3- the Induced Photosynthesis Index. We show how such relationships combined with data acquisition from a LANcube positioned on the top of a car can be used to produce spectral indices maps of a whole city in a few hours.

Keywords

Artificial Light at Night; Intrusive Light; Direct Light Pollution; Radiometry; Multispectral; Multiangular; Melatonin Suppression Index; Star Light Index; Spectroscopy; Measurement; Synthetic photometry

Subject

Environmental and Earth Sciences, Environmental Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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