Climate statistics for Australian locations

Definitions for other daily elements



Campbell-Stokes sunshine recorder

Campbell-Stokes recorder

This instrument uses a spherical glass lens to focus the image of the sun on to a specially designed card, which is scorched when the sunlight intensity exceeds a pre-determined threshold. The total length of the burn trace is proportional to the number of hours when the sunshine was sufficiently bright to burn the card.


Class A evaporation pan

Class A Evaporation pan and
wind run anemometer

Water level is reset daily to a fixed depth by adding water to the pan or by removing water following significant rainfall. The change in depth, allowing for rainfall, is the daily evaporation.

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