Titre du document

Morphology of noctilucent clouds

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Nom du Corpus

AstroConcepts

Auteur(s)
  • Willis L. Webb
Résumé

Noctilucent clouds have been hypothesized to be composed of dust particles which are enlarged by sublimation of water vapor. A meteoritic origin of the solid particles has been questioned on grounds of lack of the proper asymmetry in meteor dust impact. Reevaluation of this factor indicates that there is a marked latitudinal gradient which will result in significantly higher concentrations in the polar regions. Also, analysis of Meteorological Rocket Network wind data shows a poleward meridional flow centered at the stratopause which is assumed to diverge upward in the noctilucent cloud latitudes and to provide the reduced fall rate required for development of the observed high particulate concentrations. There is a possibility that moisture?enriched low?latitude stratospheric air is advected and condensed by this meridional and vertical flow system. The occurrence of noctilucent clouds is consistent with available data, and they are our most efficient natural probes of stratospheric and mesospheric circulations.

Langue(s) du document
Anglais
Année de publication
1965
Revue

Journal of Geophysical Research

Éditeur
Wiley
Type de publication
journal
Type de document
article
Présence de XML structuré
Non
Version de PDF
1.2
Score de qualité du texte
8.812
Nom du concept
  • Gravitational lenses
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
41088AD5584FAAD4E17E4B68E7D19B2E1CC88423
ark:/67375/WNG-WPQ8MT38-K
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