Studied from its original page
Bartels musical diagram
Bartels' note-script (GFZ archive label) · Kp musical diagram
- Made by
- Julius Bartels (with N. H. Heck and H. F. Johnston)
- Year
- 1939
- Field
- Earth science and hydrology
- Kind
- Data display
- Room
- Change over time
Not shown here: its rights are not cleared
See the original page — Kp 1932 yearly plate, whole sheet; key lower left
Fails both tests: published 1932 is after 1930 (A) and Bartels died in 1964 (B would run to 2034).
The data it needs
cyclerow identity · ordinalposition_in_cyclecolumn · ordinal · day 1-27sub_slotorder within cell · ordinal · 1-8valuevalue · ordinal · 28-step bounded scaleeventmarker · boolean
Built in 4 steps, as its maker described
yearly plate archive, year 1932
5 other forms share this skeleton
Source
Bartels, Heck and Johnston 1939, Terrestrial Magnetism 44
Attribution checked against the source