Phrases with «magnetogram»

Sentences with «magnetogram»

  • Magnetic field indices derived from synoptic magnetograms of the Mt. Wilson Observatory, i.e. Magnetic Plage Strength Index (MPSI) and Mt. Wilson Sunspot Index (MWSI), are used to study the effects of surface magnetism on total solar irradiance variability during solar cycles 21, 22 and 23. (aanda.org)
  • Before digital observations began, analog magnetograms recorded changes in the Earth's geomagnetic field onto photographic paper. (sciencedaily.com)
  • For periods after 1974, they calculate TSI values based on daily measurements of solar magnetograms. (skepticalscience.com)
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