Titre du document

A study of solar activity associated with polar?cap absorption

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Nom du Corpus

AstroConcepts

Auteur(s)
  • Constance S. Warwick
  • Marion Wood Haurwitz
Résumé

Systematic examination of all unusual solar radio and optical emission before the onset of 43 polar?cap absorption events shows which type of solar activity most frequently precedes PCA. This provides an objective basis for assignment of the solar event most probably associated with each of the individual PCA events. Relations among various characteristics of solar and PCA events are examined. These data present little evidence for association of PCA with solar flares that occur on the far side of the sun, nor do they indicate any significant dependence of occurrence or of delay time of PCA on position of the associated flare. Delay from flare to absorption varies from values of several minutes, appropriate to the energy of the solar particles, up to several hours. A definite relation is found between delay time and phase of the solar cycle, with long delay times near the time of maximum solar activity.

Langue(s) du document
Anglais
Année de publication
1962
Revue

Journal of Geophysical Research

Éditeur
Wiley
Type de publication
journal
Type de document
article
Présence de XML structuré
Non
Version de PDF
1.6
Score de qualité du texte
8.485
Nom du concept
  • Solar active regions
Catégories Science-Metrix
  • 1 - natural sciences ; 2 - earth & environmental sciences ; 3 - meteorology & atmospheric sciences
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Palaeontology
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Space and Planetary Science
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Earth and Planetary Sciences (miscellaneous)
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Atmospheric Science
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Earth-Surface Processes
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Geochemistry and Petrology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Soil Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Water Science and Technology
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Forestry
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Oceanography
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Geophysics
Catégories WoS
  • 1 - science ; 2 - geosciences, multidisciplinary
Identifiant ISTEX
2AE6470929451C021AE8BDB202DFF670567AA3EC
ark:/67375/WNG-1HVDD3BQ-H
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