Difference between revisions of "Evapotranspiration"

From LID SWM Planning and Design Guide
Jump to navigation Jump to search
(Created page with "<math>i=\left ( \frac{T}{5} \right )^{1.514}</math>")
 
m
Line 1: Line 1:
===Thornthwaite Mather method===
Step 1. Calculate the monthly heat index (i):
<math>i=\left ( \frac{T}{5} \right )^{1.514}</math>
<math>i=\left ( \frac{T}{5} \right )^{1.514}</math>
where:
T = mean monthly temperature.
Step 2. Calculate the annual heat index (I):
<math>I=\sum_{i=1}^{12}i</math>

Revision as of 14:45, 8 January 2018

Thornthwaite Mather method

Step 1. Calculate the monthly heat index (i): where: T = mean monthly temperature.


Step 2. Calculate the annual heat index (I):