♦ DESCRIPTION ♦
The program ONLINE_THORHTHWAITE
calculates potential evapotranspiration (PET) by the Thornthwaite method.
-
The input is:
(a) the chosen month,
(b) twelve (12) values of mean monthly temperature Ti (oC),
(c) latitude (degrees), and
(d) hemisphere (either North or South).
- The output is: Monthly PET (cm).
- Monthly potential evapotranspiration (PET) is a function of:
(a) the series of mean monthly temperatures,
(b) the mean monthly temperature for the given month,
(c) latitude, in degrees, and
(d) hemisphere, either North or South.
- Mean monthly temperature is restricted to nonnegative values (oC).
It is recommended that if a value of mean monthly temperature is less than 0 oC, it should be taken as 0.
- Input allowable ranges: (a) latitude North, 0-60 degrees; and (b) latitude South, 0-50 degrees.
Input data outside of these ranges will trigger error messages and stop execution.
DISCLAIMER
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