Light Pollution Monitoring Using Remote Sensing Data II.
Type d’œuvre : Œuvre écrite
Titre du périodique : Remote Sensing (Special Issue)
Date de publication : Octobre 2023
Résumé : In this Special Issue, we want to bring together the most recent advances made in the remote sensing of light pollution using spaceborne, airborne, and ground-based devices. We expect a diverse collection of works to foster new developments in this relatively new field of research. [Tiré du site Web MDPI.com]
Comme auteur :
Type d’œuvre : Œuvre écrite
Titre du périodique : Remote Sensing (Special Issue)
Date de publication : Juin 2023
Résumé : One of our targets for this project was that the procedure would not require any complex or costly equipment. The development of this project was motivated by a need to analyze airborne and spaceborne pictures of the earth surface at night, as a way to determine the optical properties (e.g., light flux, spectrum type and angular emission function) of artificial light sources. This kind of information is an essential part of the input data for radiative transfer models used to simulate light pollution and its effect on the natural environment. Examples of applications of the calibration method are given for that specific field. [Tiré du site Web MDPI.com]
Assessing light pollution in vast areas: zenith sky brightness maps of Catalonia.
Type d’œuvre : Œuvre écrite
Titre du périodique : Journal of Quantitative Spectroscopy and Radiative Transfer
Date de publication : Novembre 2023
Résumé : Zenith sky brightness maps in the V and B bands of the region of Catalonia are presented in this paper. […] The resulting maps have been compared to the zenith sky brightness world atlas and also to Sky Quality Meter (SQM) dynamic measurements. When comparing to measurements we found small differences mainly due to mismatching in the location of the points studied, and also due to differences in the natural sky brightness and atmospheric content. In the comparison to the world atlas some differences were expected as we are taking into account the blocking effect of topography and obstacles, and also due to a more precise light sources characterization. The results of this work confirm the conclusion found in other studies that the minimum sampling for studying sky brightness fine details is of 1×1 km. However, a sampling of 5×5 km is interesting when studying general trends, mainly for vast areas, due to the reduction of the time required to create the maps. [Tiré de ScienceDirect]
Type d’œuvre : Œuvre écrite
Titre du périodique : Journal of Quantitative Spectroscopy and Radiative Transfer
Date de publication : Septembre 2023
Résumé : The ultimate goal of the project is to provide better remote sensing data as inputs to numerical radiative transfer models. The model may then be used to infer health risks associated with ALAN. Stratospheric remote sensing makes it possible to measure large areas in a short period of time at low cost compared to space-borne methods. The system High Altitude Balloon Light At Night (HABLAN) was designed to achieve that goal. The first HABLAN experiments were carried out aboard balloon flights of the Canadian Space Agency (CSA) as part of their STRATOS program. In this paper, we present the experimental concept of the HABLAN system and we show some preliminary results. [Tiré de ScienceDirect]
Type d’œuvre : Œuvre écrite
Titre du périodique : International Journal of Sustainable Lighting
Date de publication : Juin 2023
Résumé : This paper is a technical report describing the use of an open source instrument called LANcube v2 to estimate a lighting devices inventory. The LANcube v2 is and instrument having 5 color sensitive sensors, each on a face of a cube. [Tiré du site Web du périodique]
Multiple angle observations would benefit visible band remote sensing using night lights.
Type d’œuvre : Œuvre écrite
Titre du périodique : Journal of Geophysical Research: Atmospheres
Date de publication : Juin 2022
Résumé : The spatial and angular emission patterns of artificial and natural light emitted, scattered, and reflected from the Earth at night are far more complex than those for scattered and reflected solar radiation during daytime. In this commentary, we use examples to show that there is additional information contained in the angular distribution of emitted light. We argue that this information could be used to improve existing remote sensing retrievals based on night lights, and in some cases could make entirely new remote sensing analyses possible. [Tiré du site Web AGU.org]