half_day Interface

half_day(latitude, dec) result(h)

Separate routines exist within this interface for scalar, or 2D input and output fields:

real, intent(in), dimension(:,:) :: latitude
real, intent(in)                 :: latitude

real, dimension(size(latitude,1),size(latitude,2))  :: h
real                                                :: h

Parameters

[in]	<latitude>	Latitudes of model grid points [radians]
[in]	<dec>	Solar declination [radians]
[out]	<h>	Half of the length of daylight at the given latitude and orbital position (dec); value ranges between 0 (all darkness) and pi (all daylight) [dimensionless]