文档介绍：Solar aspects of papers
Characterisation of meteorological parameters, solar radiation and effect of clouds at two Antarctic sites, parison with satellite estimates
Eduardo ini1, Hugo Grossi Gallegos2, Rubén D. Piacentini3, and Pablo Canziani1
1 Programa de Estudios de Procesos Atmosféricos en el Cambio Global (PEPACG), UCA/CONICET, Facultad de Ciencias Agrarias UCA, Ramón Freire 183, 1426 Capital Federal, Argentina. e-mail: ******@, ******@
2 Red Solarimétrica, Servicio Meteorológico Nacional, Av. Mitre 3100, 1663 San Miguel, Buenos Aires, Argentina. Phone/Fax: 54-11-44556762, e-mail: ******@
3 Grupo de Energía Solar, Instituto de Física Rosario, CONICET-Universidad Nacional de Rosario. 27 de febrero 210 bis, 2000 Rosario, Argentina. Phone: 54-341-4472824, Fax: 54-341-4821772, e-mail: ******@
Abstract
The analysis of revised measurements of daily mean temperature, daily mean relative humidity and daily total solar irradiation for the period 1979-1985, at the Antarctic stations Almirante Brown (West of Antarctic Peninsula), and Belgrano II (East of Antarctic Peninsula) is presented. A short-term characterization, based on monthly means of the measured parameters at each location was established. Typical temperatures for summer and winter were 2ºC and –7ºC respectively at Brown, and –2ºC and –20ºC at Belgrano. Relative humidity was rather high, always above 60% at both stations. Both measured parameters enter also as input variables in model calculations of the equivalent clear-sky daily total irradiation for each day, to study the effect of the cloudiness on the solar radiation. The effect of cloudiness was stronger at Brown, attenuating on average the daily total irradiation to about 49% of the clear-sky value, while to about 71% at Belgrano. The mean daily irradiation of MJ/m
2 in December at Belgrano is within the highest reported world-wide. Also, some days show increases in the daily irradiation by