K-index (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "K-index" in English language version.

refsWebsite

Global rank English rank

3noaa.gov

212^th place

172^nd place

2harvard.edu

18^th place

17^th place

2doi.org

2^nd place

1gfz-potsdam.de

low place

1web.archive.org

1^st place

1spaceweatherlive.com

low place

doi.org (Global: 2^nd place; English: 2^nd place)

Bartels, J.; Heck, N. H.; Johnston, H. F. (1939). "The three-hour-range index measuring geomagnetic activity". Journal of Geophysical Research. 44 (4): 411–454. Bibcode:1939TeMAE..44..411B. doi:10.1029/TE044i004p00411.
Fleming, J. A.; Harradon, H. D.; Joyce, J. W. (1939). "Seventh General Assembly of the Association of Terrestrial Magnetism and Electricity at Washington, D.C., September 4–15, 1939". Terrestrial Magnetism and Atmospheric Electricity. 44 (4). pp. 477–478, Resolution 2. Bibcode:1939TeMAE..44..471F. doi:10.1029/TE044i004p00471.

gfz-potsdam.de (Global: low place; English: low place)

kp.gfz-potsdam.de

"Hp30 & Hp60 - Kp index". kp.gfz-potsdam.de. Retrieved 2024-12-25.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Bartels, J.; Heck, N. H.; Johnston, H. F. (1939). "The three-hour-range index measuring geomagnetic activity". Journal of Geophysical Research. 44 (4): 411–454. Bibcode:1939TeMAE..44..411B. doi:10.1029/TE044i004p00411.
Fleming, J. A.; Harradon, H. D.; Joyce, J. W. (1939). "Seventh General Assembly of the Association of Terrestrial Magnetism and Electricity at Washington, D.C., September 4–15, 1939". Terrestrial Magnetism and Atmospheric Electricity. 44 (4). pp. 477–478, Resolution 2. Bibcode:1939TeMAE..44..471F. doi:10.1029/TE044i004p00471.

noaa.gov (Global: 212^th place; English: 172^nd place)

ngdc.noaa.gov

"Help on SPIDR Data – Geomagnetic And Solar Indices Data Description". NOAA Space Physics Interactive Data Resource (SPIDR). Archived from the original on 2013-02-20. Retrieved 2012-09-12.
"Geomagnetic kp and ap Indices". NOAA National Centers for Environmental Information (NESDIS). Retrieved 2016-08-21.

swpc.noaa.gov

"NOAA Space Weather Scales | NOAA / NWS Space Weather Prediction Center". www.swpc.noaa.gov. Retrieved 2024-01-15.

spaceweatherlive.com (Global: low place; English: low place)

"The aurora and solar activity archive". Space Weather Live. Retrieved 3 March 2022.

web.archive.org (Global: 1^st place; English: 1^st place)

"Help on SPIDR Data – Geomagnetic And Solar Indices Data Description". NOAA Space Physics Interactive Data Resource (SPIDR). Archived from the original on 2013-02-20. Retrieved 2012-09-12.