6533b831fe1ef96bd1299b72

RESEARCH PRODUCT

Relationship between erythemal UV and broadband solar irradiation at high altitude in Northwestern Argentina

José A. Martínez-lozanoH. SuarezMaría P. UtrillasG. SalazarG. SalazarM. J. MarínA. R. EsteveS. Gandía

subject

Radiació solar010504 meteorology & atmospheric sciencesPopulationOtras Ciencias de la Tierra y relacionadas con el Medio AmbienteSolar zenith angle010501 environmental sciencesAtmospheric sciences01 natural sciencesIndustrial and Manufacturing EngineeringCiencias de la Tierra y relacionadas con el Medio AmbienteSOUTHERN HEMISPHEREAltitudeLinear regressionIrradiationHIGH ALTITUDEElectrical and Electronic EngineeringBROADBAND SOLAR IRRADIATIONERYTHEMAL ULTRAVIOLET IRRADIATIONeducationSouthern Hemisphere0105 earth and related environmental sciencesCivil and Structural Engineeringeducation.field_of_studyMultivariable linear regressionMechanical EngineeringRadiació ultravioladaBuilding and ConstructionEffects of high altitude on humansCLEARNESS INDICESPollutionGeneral EnergyEnvironmental scienceCIENCIAS NATURALES Y EXACTAS

description

An analysis of the broadband solar irradiation, IT, and the erythemal UV irradiation, IUVER, has been performed using the measurements made from 2013 to 2015 at three sites located at altitudes over 1000 m a.s.l. In Northwestern Argentina (Salta, El Rosal, and Tolar Grande). The main objective of this paper is to determine a relationship between IT and IUVER, which would allow to estimate IUVER from IT in places with few IUVER measurements available, and especially in those where is important to establish adequate photoprotection measures given their dense population and location at high altitude. The relationship between the daily values of IUVER and IT has been fitted to a linear regression (IUVER = m IT + n), showing good correlation in the three measurement sites (R2 ≥ 0.77). Besides, the IUVER/IT ratio shows an increase with altitude of 0.32 ± 0.03 units per km, indicating a more significant influence of altitude on IUVER than on IT. Total ozone column also attenuates more IUVER than IT. In order to reduce the local nature of the relationship between IUVER and IT, the clearness indices kT and kTUVER have been used to obtain a multivariable linear regression of kTUVER as a function of the solar zenith angle, θz, and kT, which shows good correlation (R2 ≥ 0.89) for the three measurement sites. Fil: Utrillas, M. P.. Universidad de Valencia; España Fil: Marín, M. J.. Universidad de Valencia; España Fil: Esteve, A. R.. Universidad de Valencia; España Fil: Salazar, Germán Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energía no Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energía no Convencional; Argentina Fil: Suárez, H.. Universidad Nacional de Salta; Argentina Fil: Gandía, S.. Universidad de Valencia; España Fil: Martínez Lozano, J. A.. Universidad de Valencia; España

yearjournalcountryeditionlanguage
2018-11-01
10.1016/j.energy.2018.08.021https://hdl.handle.net/10550/72779