Apogee Instruments DLI-400 - Clear Sky Calculator

Homepage of the Clear Sky
Calculator. Two calculators
are available: one for
quantum meters (PPFD) and
one for pyranometers (total
shortwave radiation).
Clear Sky Calculator for
quantum sensors. Site data
are input in blue cells in the
middle of page and an
estimate of PPFD is
returned on right-hand side
of page.