From Glossary of Meteorology
Revision as of 16:17, 20 February 2012 by
(Abbreviated T-E ratio.) For a given location and month, a measure of thermal efficiency equal to the departure of the normal monthly temperature above 32°F divided by 4:
where T is the normal monthly temperature in degrees Fahrenheit, except that all values below 32° are counted as 32°. No dimensions are assigned to this ratio.