Jordan 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. 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

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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[1] 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.

[2] "Jordan's Photographic Sunshine Recorder". Nature. 33 (843): 180–181. 1 December 1885. Bibcode:1885Natur..33..180.. doi:10.1038/033180b0. ISSN 1476-4687.

[3] 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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