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. Two sheets of photosensitive paper are placed inside the cylinder and the recorder is positioned in such a way that the sunlight falling through the apertures leaves a path on the paper as the sun moves through the sky during the day. [2] The Jordan recorder was criticized as producing less consistent results than the Campbell–Stokes recorder due to difficulty in precisely interpreting the sun paths recorded. [3]
External links
- AMS Glossary of Meteorology: Jordan Sunshine Recorder
- Photograph of a Jordan Sunshine Recorder
- Henry J Green Jordan sunshine recorder
References
- ^ Beadle, Martin (1966). "An Inexpensive Modification of the Jordan Sunshine Recorder". Weather. 21 (3): 98–101. Bibcode: 1966Wthr...21...98B. doi: 10.1002/j.1477-8696.1966.tb05196.x. ISSN 1477-8696. Retrieved 6 November 2021.
- ^ "Jordan's Photographic Sunshine Recorder". Nature. 33 (843): 180–181. 1 December 1885. Bibcode: 1885Natur..33..180.. doi: 10.1038/033180b0. ISSN 1476-4687.
- ^ Middleton, W. E. K.; Spilhaus, A. F. (2019-10-08). 4. The Pers sunshine recorder. University of Toronto Press. doi: 10.3138/9781487572013-072. ISBN 978-1-4875-7201-3.
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