Person:
Zamorano Calvo, Jaime

First Name

Jaime

Last Name

Zamorano Calvo

URI

https://hdl.handle.net/20.500.14352/74989

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Ciencias Físicas

Department

Física de la Tierra y Astrofísica

Area

Astronomía y Astrofísica

Identifiers

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Now showing 1 - 8 of 8

Light Pollution Spanish REECL SQM Network
(2015) Zamorano Calvo, Jaime; Sánchez de Miguel, Alejandro; Nievas Rosillo, Mireia; Tapia Ayuga, Carlos; Ocaña González, Francisco; Izquierdo Gómez, Jaime; Gallego Maestro, Jesús; Pascual Ramírez, Sergio
The SQM network of the Spanish Light Pollution Research collaboration (http://guaix.fis.ucm.es/splpr/SQM-REECL) is growing with the help of amateur astronomers and interested citizens. Up to now there are 18 stations. SQM photometers provide measures of the night sky brightness every night using the PySQM software. The analysis of the data provided by the photometers allows the researchers to monitor the nightly, monthly and yearly evolution of the NSB and the relationship with sources of light pollution in intensity and distance. The photometers that are measuring in protected areas will alarm the researchers about eventual increasing of light pollution that could affect the environment. Using models of light dispersion on the atmosphere one can determine which light pollution sources are increasing the sky brightness at different places and in which extension. Networks of fixed photometers acquiring data every night are one of the main inputs to test these models.The collaborative effort of many people (citizen science) pro-vides the necessary data to derive scientific results.
Report of the 2014 LoNNe intercomparison campaign
(2015) Bará, Salvador; Espey, Brian; Falchi, Fabio; Kyba, Christopher C. M.; Nievas Rosillo, Mireia; Pescatori, Paolo; Ribas, Salvador; Sánchez de Miguel, Alejandro; Staubmann, Philipp; Tapia Ayuga, Carlos; Wuchterl, Günther; Zamorano Calvo, Jaime
The 2014 LoNNe (Loss of the Night Network) intercomparison campaign is the second of four campaigns planned during EU COST Action ES1204. The goal of these campaigns is to understand systematic uncertainty inherent in observations of skyglow (light pollution). An innovation of this year’s campaign was to take measurements with many of the nstruments at two sites: an urban location and a location far from artificial lights. This report summarizes the eeting, and also provides three recommendations for obtaining and analyzing handheld SQM observations. The UCM group of Astronomical Instrumentation and Extragalactic Astronomy (GUAIX) hosted the meeting at the Physics building of Universidad Complutense de Madrid (UCM). A meeting room at Departamento de Astrofísica y CC. de la Atmósfera and the astronomical observatory (Observatorio UCM) were prepared in advance. In particular, a tailor made station to set the SQM and other photometer devices was installed on the roof of the Physics building. The Laboratorio de Investigación Científica Avanzada (LICA) was used to test and characterize a number of devices and filters.
Contaminación Lumínica en España 2012: Light Pollution in Spain 2012
(2012) Sánchez de Miguel, Alejandro; Zamorano Calvo, Jaime; Gómez Castaño, José; Pascual Ramírez, Sergio; López Cayuela, Maria Angeles; Gallego Maestro, Jesús; Ocaña González, Francisco; Martín Martínez, G.; Larrodera, Carlos; Tinao, B.; Oré, S.; Palos, M.F.; Challupner, Peter
The evolution of electric power consumption on public lighting in Spain is obtained from DMSP-OLS satellite data and compared with official data. We provide trends for each Spanish province. Radiance calibrated images for the Iberian peninsula for 1996 and 2006 are shown. We are using pictures taken from the International Space Station (ISS) for Light Pollution studies.
LICA-UCM lamps spectral database
(2017) Tapia Ayuga, Carlos; Sánchez de Miguel, Alejandro; Zamorano Calvo, Jaime
Spectra of the lamps that are used for public lighting and ornamental purposes have been obtained with a portable spectrograph around Madrid city. The database is presented in this report along with a description of the procedures. The database has interest for Light Pollution research.
Night Sky Brightness and Light Pollution in Comunidad de Madrid
(2013) Zamorano Calvo, Jaime; Sánchez de Miguel, Alejandro; Gómez Castaño, José; Ocaña González, Francisco; Gallego Maestro, Jesús; Pila Díez, Berenice; Nievas Rosillo, Mireia; Tapia Ayuga, Carlos; Fernández Domínguez, Alberto; Pascual Ramírez, Sergio
Preliminary results of a study of the night sky background brightness around the city of Madrid using Sky Quality Meter (SQM) photometers are presented. Data-retrieval methodology includes an automatic procedure to measure from a moving vehicle which allows to speed up the data gathering. The night sky brightness, an astronomical quality parameter that accounts for luminous flux from the sky, is closely related with the light pollution. The map with the spatial distribution of the night sky brightness around Madrid has been compared to the light pollution as measured with calibrated satellite imagery and nocturnal images taken by astronauts aboard the International Space Station (ISS).
NixNox procedure to build Night Sky Brightness maps from SQM photometers observations
(2014) Zamorano Calvo, Jaime; Sánchez de Miguel, Alejandro; Nievas Rosillo, Mireia; Tapia Ayuga, Carlos
The NixNox procedure to build all-sky maps of the nocturnal night sky brightness using SQM photometers is described. Astronomers belonging to amateur associations in Spain are using this observational method to obtain data of their preferred sites of observation to characterize the astronomical quality of the sky and the sources of light pollution.
ISS nocturnal images as a scientific tool against Light Pollution: Flux calibration and colors
(2012) Sánchez de Miguel, Alejandro; Zamorano Calvo, Jaime; Pascual Ramírez, Sergio; López Cayuela, Marian; Ocaña González, Francisco; Challupner, Peter; Fernández-Renau, A.; Gómez, J.A.
The potential of the pictures of the Earth taken at night from the International Space Station (ISS) with a Nikon D3s digital camera to fight against light pollution is shown. We show that RAW pictures should be used to obtain fluxes. We have developed a method to perform absolute photometric calibration measuring fluxes of the stars recorded in the pictures and also calibrated sources at earth.
Sky Quality Meter cross-calibration for the NixNox project
(2013) Zamorano Calvo, Jaime; Ruiz Carmona, Roque
Twelve SQM-L night sky photometers have been calibrated to determine their internal precision and differences in response. Amateur astronomers around Spain, under the supervision of the Spanish Astronomical Society (SEA, Sociedad Española de Astronomía), will use these photometers to locate and characterize sites with dark skies well suited to perform astronomical observations (NixNox Project). A simple experimental setup has been built to obtain zero offsets for each photometer in order to correct all the observations.