slopefactor: Slope Factor
Description
Adjusts solar radiation for land slope and aspect relative to the sun, 0=level ground
Usage
slopefactor(lat, Jday, slope, aspect)
Arguments
Jday
Julian date or day of the year [day]
slope
slope of the ground [rad]
aspect
ground aspect [rad from north]
References
Monteith and Unsworth (1990) Principles of Environmental Physics, 2nd ed. Chapter 5