
World Magnetic Model 2025, NOAA National Centers for Environmental
Information, doi: 10.25921/aqfd-sd83, 2024.</p></li>
<li><p>Chulliat, A., W. Brown, P. Alken, C. Beggan, M. Nair, G. Cox, A.
Woods, S. Macmillan, B. Meyer and M. Paniccia, The US/UK World Magnetic
Model for 2020-2025: Technical Report, National Centers for
Environmental Information, NOAA, doi: 10.25923/ytk1-yx35, 2020.</p></li>
<li><p>Chulliat, A., W. Brown, P. Alken, S. Macmillan, M. Nair, C.
Beggan, A. Woods, B. Hamilton, B. Meyer and R. 