A preliminary study of the linear relationship between monthly averaged daily solar radiation and daily thermal amplitude in the north of Buenos Aires province

TL;DR

This study investigates the linear correlation between monthly average daily solar radiation and daily thermal amplitude in northern Buenos Aires, providing a predictive formula with promising initial results.

Contribution

It introduces a preliminary linear model linking solar radiation and thermal amplitude, based on measurements from Buenos Aires, with potential for further refinement.

Findings

High correlation coefficient (R=0.848) indicating a strong linear relationship

Predictive formula for estimating monthly solar radiation

Good initial fit despite limited data (36 months)

Abstract

Using irradiance and temperature measurements obtained at the Facultad Regional San Nicol\'as of UTN, we performed a preliminary study of the linear relationship between monthly averaged daily solar radiation and daily thermal amplitude. The results show a very satisfactory adjustment (R = 0.848, RMS = 0.066, RMS% = 9.690 %), even taking into account the limited number of months (36). Thus, we have a formula of predictive nature, capable of estimating mean monthly solar radiation for various applications. We expect to have new data sets to expand and improve the statistical significance of these results.