%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Lobit, P.
%A Perez, L. L.
%A Lhomme, Jean-Paul
%T Retrieving air humidity, global solar radiation, and reference evapotranspiration from daily temperatures : development and validation of new methods for Mexico. Part II : radiation
%D 2018
%L fdi:010073629
%G ENG
%J Theoretical and Applied Climatology
%@ 0177-798X
%K MEXIQUE
%M ISI:000438428600012
%N 3-4
%P 799-810
%R 10.1007/s00704-017-2212-8
%U https://www.documentation.ird.fr/hor/fdi:010073629
%> https://www.documentation.ird.fr/intranet/publi/2018/07/010073629.pdf
%V 133
%W Horizon (IRD)
%X We propose a new model to estimate daily global radiation from daily temperature range measurements. This model combines that of Majumdar et al. (Sol Energy 13(4):383-394, 1972) to estimate clear sky radiation with a Gompertz function to estimate the relation between temperature range and cloud transmittance. Model parameters are estimated from historical weather data: maximum and minimum temperatures and, if available, relative humidity; no other calibration is required. The model was parametrized and validated using 788 weather stations in Mexico. When calibrated using historical humidity data, daily global radiation was estimated with a mean root mean square error of 3.06 MJ m(-2) day(-1). The model performed well in all situations, except for a few stations around the Gulf of Mexico and in mountain areas. When using estimated humidity, the root mean square error of prediction was only slightly degraded (3.07 MJ m(-2) day(-1)). Possible theoretical basis and applicability of this model to other environments are discussed.
%$ 072 ; 020