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Table 2 List of the selected ground observatories used for validation tests, listed in alphabetic order

From: Geomagnetic Virtual Observatories: monitoring geomagnetic secular variation with the Swarm satellites

Observatory name IAGA code Colatitude East longitude
Abisko ABK \(21.64^{\circ }\) \(18.82^{\circ }\)
Ascension Island ASC \(97.95^{\circ }\) \(345.62^{\circ }\)
Alice Springs ASP \(113.77^{\circ }\) \(133.88^{\circ }\)
Boulder BOU \(49.87^{\circ }\) \(254.77^{\circ }\)
Barrow BRW \(18.68^{\circ }\) \(203.38^{\circ }\)
Chambon la Forêt CLF \(41.98^{\circ }\) \(2.27^{\circ }\)
College CMO \(25.13^{\circ }\) \(212.14^{\circ }\)
Canberra CNB \(125.32^{\circ }\) \(149.36^{\circ }\)
Gan GAN \(89.30^{\circ }\) \(73.15^{\circ }\)
Qeqertarsuaq (Godhavn) GDH \(20.748^{\circ }\) \(306.467^{\circ }\)
Guam GUA \(76.41^{\circ }\) \(144.87^{\circ }\)
Hermanus HER \(124.43^{\circ }\) \(19.23^{\circ }\)
Honolulu HON \(68.68^{\circ }\) \(202.0^{\circ }\)
Hornsund HRN \(12.99^{\circ }\) \(15.54^{\circ }\)
Huancayo HUA \(102.05^{\circ }\) \(284.67^{\circ }\)
Kakioka KAK \(53.77^{\circ }\) \(140.18^{\circ }\)
Kourou KOU \(84.79^{\circ }\) \(307.27^{\circ }\)
Learmonth LRM \(112.22^{\circ }\) \(114.1^{\circ }\)
Mawson MAW \(157.60^{\circ }\) \(62.88^{\circ }\)
Mbour MBO \(75.62^{\circ }\) \(343.03^{\circ }\)
Macquarie Island MCQ \(144.5^{\circ }\) \(158.95^{\circ }\)
Narsarsuaq NAQ \(28.84^{\circ }\) \(314.56^{\circ }\)
Niemegk NGK \(37.93^{\circ }\) \(12.68^{\circ }\)
Novosibirsk NSV \(35.15^{\circ }\) \(83.23^{\circ }\)
Port Stanley PST \(141.70^{\circ }\) \(302.11^{\circ }\)
Resolute Bay RES \(15.31^{\circ }\) \(265.10^{\circ }\)
Shumagin SHU \(34.65^{\circ }\) \(199.54^{\circ }\)
Tristan da Cunha TDC \(127.07^{\circ }\) \(347.68^{\circ }\)
  1. Source http://www.intermagnet.org/