Photoperiod, Sun, Computer software
The theory of calculating solar position is described. Using this theory, a number of computing routines are prepared in the C programming language. These routines are suitable for users who program in C, and have an ANSI compatible C compiler. These routines are fully documented, with both the underlying theory, and code particulars, and may be used as a stand alone reference. The source code has also been published in appendix B of the report.
Maps are not included as part of the complete document download. If this report contains a map, it will be available in the Individual Parts list below.
Roderick, M L. (1992), Methods for calculating solar position and day length including computer programs and subroutines. Department of Agriculture and Food, Western Australia. Report 137.