ISHS Acta Horticulturae 276: II International Symposium on Computer Modelling in Fruit Research and Orchard Management
A MODEL FOR THE DIURNAL COURSE OF AIR TEMPERATURE: POMOLOGICAL APPLICATIONS |
| Authors: | R. Rojas-Martinez, A. Hernandez-Herrera, R. Garza-Gutierrez |
| Abstract:
A refinement of the Parton and Logan (1981) model for the diurnal course of air temperature was validated under subtropical Mexican conditions. The refined model was run against 757 non-consecutive daily temperature curves taken from thermograph records. The two equations of the model had average coefficients of determination (r2) of 0.96 and 0.90, respectively. Both the standard error of temperature estimation and the absolute error of temperature estimation averaged less than 1°C. When the refinement of the Parton and Logan model was used to calculate Chill Units under subtropical Mexican conditions and compared against the approach used by Richardson, et al. it gave a mean percentage error of 5% compared with an error of 24% for the Richardson method. | |
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