Multiple Angle Observations Would Benefit Visible Band Remote Sensing Using Night Lights
| Autor: | Kyba, Christopher C. M., Aubé, Martin, Bará, Salvador, Bertolo, Andrea, Bouroussis, Constantinos A., Cavazzani, Stefano, Espey, Brian R., Falchi, Fabio, Gyuk, Geza, Jechow, Andreas, Kocifaj, Miroslav, Kolláth, Zoltán, Lamphar, Héctor, Levin, Noam, Liu, Shengjie, Miller, Steven D., Ortolani, Sergio, Jason Pun, Chun Shing, Ribas, Salvador José, Ruhtz, Thomas, Sánchez de Miguel, Alejandro, Schneider, Mathias, Shrestha, Ranjay Man, Simoneau, Alexandre, So, Chu Wing, Storch, Tobias, Tong, Kai Pong, Tuñón, Milagros, Turnshek, Diane, Walczak, Ken, Wang, Jun, Wang, Zhuosen, Zhang, Jianglong, 2 Cégep de Sherbrooke 475 rue du cégep Sherbrooke QC Canada, 3 Area de Optica Universidade de Santiago de Compostela (USC) Compostela Spain, 4 Regional Environmental Protection Agency of Veneto Via Ospedale Civile 24 Padova Italy, 5 Lighting Laboratory National Technical University of Athens Athens Greece, 6 Department of Physics and Astronomy University of Padova Padova Italy, 8 School of Physics Trinity College DublinCollege Green Dublin Ireland, 9 ISTIL ‐ Istituto di Scienza e Tecnologia dell’Inquinamento Luminoso Via Roma 13 Thiene Italy, 10 The Adler Planetarium 1300 S. Lake Shore Dr Chicago IL USA, 11 Leibniz Institute of Freshwater Ecology and Inland Fisheries Berlin Germany, 12 ICA Slovak Academy of Sciences Bratislava Slovakia, 14 Department of Physics Eszterházy Károly University Leányka út 6‐7 Eger Hungary, 16 The Department of Geography The Hebrew University of Jerusalem Mt Scopus Jerusalem Israel, 18 Spatial Sciences Institute University of Southern California Los Angeles CA USA, 19 Department of Atmospheric Science and Cooperative Institute for Research in the Atmosphere Colorado State University Fort Collins CO USA, 20 Department of Physics The University of Hong Kong Pokfulam Hong Kong, 21 Parc Astronòmic Montsec ‐ Ferrocarrils de la Generalitat de Catalunya Lleida Spain, 22 Freie Universität Berlin Berlin Germany, 23 Depto. Física de la Tierra y Astrofísica Instituto de Física de Partículas y del Cosmos (IPARCOS) Universidad Complutense Madrid Spain, 25 German Aerospace Center (DLR) Earth Observation Center (EOC) Weßling Germany, 26 Science Systems and Applications, Inc. Lanham MD USA, 28 Université de Sherbrooke 2500 Boulevard de l’Université Sherbrooke QC Canada, 1 German Research Centre for Geosciences GFZ Potsdam Germany, 29 Physics Department Carnegie Mellon University Pittsburgh PA USA, 30 Department of Chemical and Biochemical Engineering College of Engineering Iwoa City IA USA, 27 Terrestrial Information Systems Laboratory NASA Goddard Space Flight Center Greenbelt MD USA, 32 Department of Atmospheric Sciences University of North Dakota Grand Forks ND USA |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Atmospheric Science
remote sensing ddc:551.5 Geophysics Space and Planetary Science light pollution 500 Naturwissenschaften und Mathematik::550 Geowissenschaften Geologie::550 Geowissenschaften Earth and Planetary Sciences (miscellaneous) multi‐view multi‐angle artificial light at night night lights |
| Zdroj: | Journal of Geophysical Research: Atmospheres |
| Popis: | 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. This work will be challenging, so we hope this article will encourage researchers and funding agencies to pursue further study of how multi‐angle views can be analyzed or acquired. Plain Language Summary: When satellites take images of Earth, they usually do so from directly above (or as close to it as is reasonably possible). In this comment, we show that for studies that use imagery of Earth at night, it may be beneficial to take several images of the same area at different angles within a short period of time. For example, different types of lights shine in different directions (street lights usually shine down, while video advertisements shine sideways), and tall buildings can block the view of a street from some viewing angles. Additionally, since views from different directions pass through different amounts of air, imagery at multiple angles could be used to obtain information about Earth's atmosphere, and measure artificial and natural night sky brightness. The main point of the paper is to encourage researchers, funding agencies, and space agencies to think about what new possibilities could be achieved in the future with views of night lights at different angles. Key Points: Remote sensing using the visible band at night is more complex than during the daytime, especially due to the variety of artificial lights. Views of night lights intentionally taken from multiple angles provide several advantages over near‐nadir or circumstantial view geometries. Night lights remote sensing would benefit from greater consideration of the role viewing geometry plays in the observed radiance. EC H2020 H2020 Societal Challenges http://dx.doi.org/10.13039/100010676 Helmholtz Association http://dx.doi.org/10.13039/501100009318 Slovak Research and Development Agency Xunta de Galicia (Regional Government of Galicia) http://dx.doi.org/10.13039/501100010801 National Aeronautics and Space Administration http://dx.doi.org/10.13039/100000104 University of Hong Kong http://dx.doi.org/10.13039/501100003803 Fonds de recherche du Québec EC Emprego, Assuntos Sociais e Inclusão European Social Fund http://dx.doi.org/10.13039/501100004895 Natural Environment Research Council http://dx.doi.org/10.13039/501100000270 City of Cologne, Germany |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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