Updated 10/27/2004
This script calculates the Heat Load Index using the methods described in:
McCune, Bruce and Dylan Keon, 2002. Equations for potential annual direct
incident radiation and heat load index. Journal of Vegetation Science. 13:603-606.
available at: http://oregonstate.edu/~mccuneb/radiation.htm
Inputs: DEM and latitude
Output units are unitless.
This paper describes three equations for calculating annual solar radiation. Equation 1 can be used anywhere on the planet, irrespective of slope and latitude. Equation 2, however, can be implemented at any latitude, but only on dems with slopes from 0-60.
Equation 3 is the most restrictive, and can be utilized at latitudes from 30-60 and slopes from 0-60.
Please read the "readme" file. |
