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Mapas de Radiación ultravioleta en Costa Rica

Authors: Wright, Jaime;

Mapas de Radiación ultravioleta en Costa Rica

Abstract

La radiación ultravioleta (UV) contribuye relativamente con poca energía al espectro solar. Sin embargo, es importante, porque biológicamente es muy activa. El objetivo de este trabajo es valorar los niveles máximos de radiación solar UV sobre un plano horizontal, utilizando mapas diseñados para el territorio de Costa Rica, creados por el software Surfer 8. Los datos que fueron usados en la creación de los mapas fueron predichos al mediodía local en ochenta y tres localidades esparcidas por el territorio nacional con un modelo atmosférico espectral, el cual es físicamente establecido. El modelo emplea comodatos d entrada necesarios: la fecha y hora, el lugar identificado por la latitud, la longitud y la altura del terreno sobre el nivel del mar, el valor de la columna vertical del ozono, el albedo superficial y los parámetros de turbiedad atmosférica. La estimación y los parámetros de turbiedad atmosférica. La estimación difiere en un 3% de las mediciones hechas in situ, lo que está de acuerdo con los datos experimentales. El modelo utilizada, en la estimación de los datos de radiación UV, condiciones de cielo claro, que es la condición donde se obtiene la máxima energía posible en cada localidad. Lo cual tiene su importancia fundamental a la hora de valorar los efectos nocivos para la salud humana, ya que puede ocasionar la máxima intensidad posible en esta importante banda del espectro solar. Entre los resultados más destacados puede mencionarse un incremento mayor del 23% en la radiación UV con la altitud, obteniendo los cerros y las montañas los índices más altos y los lugares ubicados al nivel del mar y sobre la costa los índices más bajos. Análisis de variación anual revelan un incremento mayor al 27% entre el mes de menor radiación UV (diciembre) y el mes de mayor radiación UV (abril). Este tema es de especial interés, debido al creciente número de personas que se desplazan durante diferentes épocas del año a altitudes mayores de los 2000 m de altura, en actividades relativas al turismo y al trabajo. En este caso, estas personas reciben importantes incrementos en los niveles de radiación sola UV en condiciones de cielos despejados.

Ultraviolet radiation (UV) contributes relatively little to the solar spectrum. However it is very important because it is biological very active. The aim of this work is to evaluate the levels of ultraviolet solar radiation (UV) using solar radiation maps designed for the territory of Costa Rica created with the software Surfer 8. The data of UV radiation – utilized in the creation of the maps – were predicted in eighty-three geographical locations by an atmospheric spectral model, which is physically established, this model utilizes as necessary input data: the date and hour, identifying place by the latitude, length and height of the land above sea level, the value of the vertical column of the ozone, the superficial albedo and the atmospheric turbidity parameters. The estimation differs in a 3% with the experimentation data made in situ. The model estimate ultraviolet radiation under clear skies conditions; this is the maximum possible energy which is obtained in each locality. This is important at the moment to evaluate the harmful effects for the human health can cause the maximum intensity in this important band of the solar spectrum. Among the most noticeable results can be mentioned an increase of 23% with the altitudes, among the lower places (sea level) and higher places (hills and mountains). It was also found an increment greater that 27% between the months of fewer solar radiation (December) and greater solar radiation (Apri). This theme is of special interest due to the growing number of people that displace during different times of the year to altitudes greater than 2000 m in activities relating to the tourism, recreation and work. In this case these people receive important increments in the levels of ultraviolet solar radiation in clear sky conditions.

Universidad Nacional, Costa Rica

Departamento de Física

Country
Costa Rica
Keywords

RADIACIÓN ULTRAVIOLETA, Q1-390, radiación ultravioleta., Science (General), OZONE, Science, Q, SOLAR RADIATION, COSTA RICA, Ozono, OZONO, ULTRAVIOLET RADIATION, RADIACIÓN SOLAR

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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