The
regular diurnal, seasonal and solar cycle variations were then removed from the data by substracting from these the quiet standard value.
Diurnal raptors
is the true falcons.
Mainly diurnal, with a maximum lifespan of 18 months.
Diurnal aberration.
They are
predominantly diurnal
( daytime ) and feed on a variety of heathland plants.
Diurnal variations
cease to be sensible at a depth of 2 or 3 meters.
Diurnal rhythm.
Diurnal variability
of solar input, or the annual or seasonal variation of heating.
Diurnal tide.
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