A keogram is a plot of time versus latitude, created from individual images captured over the course of a period of time. [1]. They are commonly used to display auroral activity as recorded by all-sky cameras over the course of a night. [2] They may be used to display weather information over the course of years in order to highlight long-term trends. The word "keogram" derives from the Inuit word for aurora borealis. [3]

Animation mapping the view from AurorEye all-sky camera to keogram, 2022 February 23.


Construction of a keogram

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Keograms in auroral science

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Other uses of keograms

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References

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