temperature-efficiency ratio

temperature-efficiency ratio

[′tem·prə·chər i′fish·ən·sē ‚rā·shō]
(ecology)
For a given location and month, a measure of thermal efficiency; it is equal to the departure, in degrees Fahrenheit, of the normal monthly temperature above 32°F (0°C) divided by 4: (T- 32)/4. Abbreviated T-E ratio. Also known as thermal-efficiency ratio.
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