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Author Kocifaj, M.; Bará, S. url  doi
openurl 
  Title Night-time monitoring of the aerosol content of the lower atmosphere by differential photometry of the anthropogenic skyglow Type Journal Article
  Year 2020 Publication Monthly Notices of the Royal Astronomical Society: Letters Abbreviated Journal  
  Volume 500 Issue 1 Pages L47-L51  
  Keywords Skyglow; radiative transfer; scattering; atmospheric effects; instrumentation; photometers; light pollution  
  Abstract Night-time monitoring of the aerosol content of the lower atmosphere is a challenging task, because appropriate reference natural light sources are lacking. Here, we show that the anthropogenic night-sky brightness due to city lights can be successfully used for estimating the aerosol optical depth of arbitrarily thick atmospheric layers. This method requires measuring the zenith night-sky brightness with two detectors located at the limiting layer altitudes. Combined with an estimate of the overall atmospheric optical depth (available from ground-based measurements or specific satellite products), the ratio of these radiances provides a direct estimate of the differential aerosol optical depth of the air column between these two altitudes. These measurements can be made with single-channel low-cost radiance detectors widely used by the light pollution research community.  
  Address Faculty of Mathematics, Physics, and Informatics, Comenius University, Mlynská dolina, 842 48 Bratislava, Slovakia ICA, Slovak Academy of Sciences, Dúbravská cesta 9, 845 03 Bratislava, Slovakia; kocifaj ( at ) savba.sk  
  Corporate Author Thesis  
  Publisher Oxford Academic Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1745-3925 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial (down) 3302  
Permanent link to this record
 

 
Author Simoneau, A.; Aubé, M.; Leblanc, J.; Boucher, R.; Roby, J.; Lacharité, F. url  openurl
  Title PSFs for mapping artificial night sky luminance over large territories Type Journal Article
  Year 2021 Publication Monthly Notices of the Royal Astronomical Society Abbreviated Journal MNRAS  
  Volume in press Issue Pages  
  Keywords Skyglow; light pollution; simulations; atmospheric effects; radiative transfer; numerical methods; site testing  
  Abstract Knowledge of the night sky radiance over a large territory may be valuable information to identify sites appropriate to astronomical observations or for asserting the impacts of artificial light at night on ecosystems. Measuring the sky radiance can be a complex endeavour depending on the desired temporal and spatial resolution. Similarly, modelling of artificial night sky radiance for multiple points of a territory can represent a significant amount of computing time depending on the complexity of the model used. We suggest performing modelling of

the sky radiance over large territories using the convolution of a transfer function determined with the radiative transfer model Illumina v2. The transfer functions are used as Point Spread Functions of single light sources over a complex light source geographical distributions. The main contributions of our work are to determine how the Point Spread Function is sensitive to the main driving parameters of the artificial night sky radiance such as the wavelength, the ground reflectance, the obstacles properties, the Upward Light Output Ratio and the Aerosol Optical Depth. The method is applied to the territory of the Mont-Mégantic International Dark Sky Reserve in Canada. We repeated the experiment for winter and summer conditions and compared the maps to the New world atlas of artificial night sky brightness, to different setup of the Illumina v2 model and to in situ Sky Quality Camera measurements. The typical errors associated with the method were evaluated.
 
  Address Département de géomatique appliquée, Université de Sherbrooke, 2500 Boul. de l’Université, Sherbrooke, J1K 2R1, Canada; martin.aube ( at ) cegepsherbrooke.qc.ca  
  Corporate Author Thesis  
  Publisher Royal Astronomical Society Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial (down) 3301  
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Author Argys, L.M.; Averett, S.L.; Yang, M. url  doi
openurl 
  Title Light pollution, sleep deprivation, and infant health at birth Type Journal Article
  Year 2021 Publication Southern Economic Journal Abbreviated Journal South Econ J  
  Volume 87 Issue 3 Pages 849-888  
  Keywords Human Health; birth outcomes; light pollution; skyglow; sleep deprivation  
  Abstract We conduct the first study to examine the fetal health impact of light pollution based on a direct measure of skyglow, an important aspect of light pollution. Using an empirical regularity discovered in physics (called Walker's law) as an instrumental variable, we address the potential endogeneity problem associated with the skyglow variable. We find evidence of reduced birth weight, shortened gestational length, and increases in preterm births. Specifically, increased nighttime brightness, characterized by being able to see only one‐fourth to one‐third of the stars that are visible in the natural unpolluted night sky, is associated with an increase of 1.48 percentage points in the likelihood of a preterm birth. Our study adds to the literature on the impact of early‐life exposure to pollution, which so far has focused primarily on air pollution. Our study has important policy implications regarding the necessity of minimizing skyglow that is, for example, contributed by streetlights.  
  Address Department of Economics, Lehigh University, 621 Taylor Street, Bethlehem, PA 18015 USA; muzheyang ( at ) lehigh.edu  
  Corporate Author Thesis  
  Publisher Wiley Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0038-4038 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial (down) 3300  
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Author Masana, E.; Carrasco, J.M.; Bará, S.; Ribas, S.J. url  doi
openurl 
  Title A multiband map of the natural night sky brightness including Gaia and Hipparcos integrated starlight Type Journal Article
  Year 2021 Publication Monthly Notices of the Royal Astronomical Society Abbreviated Journal  
  Volume 501 Issue 4 Pages 5443-5456  
  Keywords Instrumentation; night sky brightness; radiative transfer; scattering; atmospheric effects; photometers; light pollution; site testing  
  Abstract The natural night sky brightness is a relevant input for monitoring the light pollution evolution at observatory sites, by subtracting it from the overall sky brightness determined by direct measurements. It is also instrumental for assessing the expected darkness of the pristine night skies. The natural brightness of the night sky is determined by the sum of the spectral radiances coming from astrophysical sources, including zodiacal light, and the atmospheric airglow. The resulting radiance is modified by absorption and scattering before it reaches the observer. Therefore, the natural night sky brightness is a function of the location, time, and atmospheric conditions. We present in this work the GAia Map of the Brightness Of the Natural Sky (GAMBONS), a model to map the natural night brightness of the sky in cloudless and moonless nights. Unlike previous maps, GAMBONS is based on the extra-atmospheric star radiance obtained from the Gaia catalogue. The Gaia-Data Release 2 (DR2) archive compiles astrometric and photometric information for more than 1.6 billion stars up to G = 21 mag. For the brightest stars, not included in Gaia-DR2, we have used the Hipparcos catalogue instead. After adding up to the star radiance the contributions of the diffuse galactic and extragalactic light, zodiacal light and airglow, and taking into account the effects of atmospheric attenuation and scattering, the radiance detected by ground-based observers can be estimated. This methodology can be applied to any photometric band, if appropriate transformations from the Gaia bands are available. In particular, we present the expected sky brightness for V (Johnson), and visual photopic and scotopic passbands.  
  Address Departament Física Quàntica i Astrofìsica, Institut de Ciències del Cosmos (ICC-UB-IEEC), C Martí Franquès 1, E-08028 Barcelona, Spain; emasana ( at ) fqa.ub.edu  
  Corporate Author Thesis  
  Publisher Oxford Academic Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0035-8711 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ john @ Serial (down) 3299  
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Author Wang, G.; Vega-Rodriguez, J.; Diabate, A.; Liu, J.; Cui, C.; Nignan, C.; Dong, L.; Li, F.; Ouedrago, C.O.; Bandaogo, A.M.; Sawadogo, P.S.; Maiga, H.; Alves E Silva, T.L.; Pascini, T.V.; Wang, S.; Jacobs-Lorena, M. url  doi
openurl 
  Title Clock genes and environmental cues coordinate Anopheles pheromone synthesis, swarming, and mating Type Journal Article
  Year 2021 Publication Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 371 Issue 6527 Pages 411-415  
  Keywords Animals; Mosquitos  
  Abstract Anopheles mating is initiated by the swarming of males at dusk followed by females flying into the swarm. Here, we show that mosquito swarming and mating are coordinately guided by clock genes, light, and temperature. Transcriptome analysis shows up-regulation of the clock genes period (per) and timeless (tim) in the head of field-caught swarming Anopheles coluzzii males. Knockdown of per and tim expression affects Anopheles gambiae s.s. and Anopheles stephensi male mating in the laboratory, and it reduces male An. coluzzii swarming and mating under semifield conditions. Light and temperature affect mosquito mating, possibly by modulating per and/or tim expression. Moreover, the desaturase gene desat1 is up-regulated and rhythmically expressed in the heads of swarming males and regulates the production of cuticular hydrocarbons, including heptacosane, which stimulates mating activity.  
  Address Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health and Malaria Research Institute, Baltimore, MD, USA. sbwang@cemps.ac.cn ljacob13@jhu.edu  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0036-8075 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:33479155 Approved no  
  Call Number GFZ @ kyba @ Serial (down) 3298  
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