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Campbell–Stokes recorder used in a tropical region. A Campbell–Stokes recorder adapted for use in polar regions (The right sphere is facing south) The Campbell–Stokes recorder (sometimes called a Stokes sphere) is a type of sunshine recorder. It was invented by John Francis Campbell in 1853 and modified in 1879 by Sir George Gabriel Stokes.
A Campbell–Stokes sunshine recorder. A sunshine recorder is a device that records the amount of sunshine at a given location or region at any time. The results provide information about the weather and climate as well as the temperature of a geographical area.
For the specific purpose of sunshine duration recording, Campbell–Stokes recorders are used, which use a spherical glass lens to focus the sun rays on a specially designed tape. When the intensity exceeds a predetermined threshold, the tape burns.
A Jordan sunshine recorder (left). The other instrument is a Marvin sunshine recorder. A Jordan sunshine recorder is a type of sunshine recorder invented in the 19th century by T. B. Jordan with later modifications by his son, J. B. Jordan. [1] The device consists of a cylinder with two small apertures through which sunlight can pass.
Campbell–Stokes recorder; J. Jordan sunshine recorder; M. ... Pers sunshine recorder; S. Sunshine recorder This page was last edited on 4 October 2010, at 09:28 ...
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A Pers sunshine recorder is a sunshine recorder in which sunlight is focused by a lens and reflected by a hemispherical mirror, tracing the sun's path onto photosensitive paper. [1] One advantage of this design is that it can be used at any latitude.
A Marvin sunshine recorder is a sunshine recorder which uses a clock type mechanism to record the Sun. External links. AMS Glossary of Meteorology: ...