Solar Radiation Option for Photosynthesis

The Solar Radiation Option for Photosynthesis frame  provides the user with a drop-down menu from which the source for radiation data may be selected, these include: Constant; Read Daily Average (SUNDAY.INP); and Use Solar Radiation in ASER.INP. The Modify button then allows the user to set various solar radiation options including initial solar radiation at the water surface, minimum optimum solar radiation, the fraction of day that is daylight, among others.

Figure 1. Solar Radiation Option for Photosynthesis frame.

Figure 2. Solar Radiation Options form.