Figure 9From: Using a stand-level model to predict light absorption in stands with vertically and horizontally heterogeneous canopies The relationship between the day of the year (Julian day) and mean midday solar zenith angle (a,c) or the adjusted mean midday solar zenith angle (b, d) and at four different latitudes (lat.). Note that (a) and (b) are for the southern hemisphere and (c) and (d) are for the northern hemisphere.Back to article page