Solar {EcoHydRology} | R Documentation |
Solar radiation at the ground surface [kJ m-2 d-1]
Solar(lat, Jday, Tx, Tn, albedo=0.2, forest=0, slope=0, aspect = 0, units="kJm2d", latUnits = "unknown", printWarn=TRUE)
lat |
latitdue [rad] |
Jday |
Julian date or day of the year [day] |
Tx |
maximum daily temperature [C] |
Tn |
minimum daily temperature [C] |
albedo |
surface albedo or reflectivity [-] |
forest |
forest or vegeation cover [-] |
slope |
slope of the ground [rad] |
aspect |
ground aspect [rad from north] |
units |
Units of the result. Defaults to kJ/m2/d, changing this to "Wm2" will make output in W/m2 |
latUnits |
Latitude units can be explicitly stated here, options are 'radians', 'degrees' or default is 'unknown', which will assume radians unless the absolute value of lat is greater than pi/2 |
printWarn |
Will print a warning about latitude if set to TRUE |