Source

World Magnetic Model (WMM)

NOAA National Centers for Environmental Information (n.d.). World Magnetic Model (WMM). Version WMM2025 (2025–2030 epoch). https://www.ncei.noaa.gov/products/world-magnetic-model Retrieved 2026-09-06.

Authority tier: Primary authority
Type: dataset
URL: https://www.ncei.noaa.gov/products/world-magnetic-model
Licence: Public domain (work of the U.S. Government)
Retrieved by Lithoen: 2026-09-06
Last re-checked: 2026-09-06 (verified)

Known metadata gaps

Recorded explicitly rather than guessed.

publishedYear: the product landing page carries no publication date; the model epoch is recorded in `version` instead.