Lidar observations of a stratospheric dust cloud layer in the tropics

Details Lidar observations of a stratospheric dust cloud layer in the tropics Lidar observations of a stratospheric dust cloud layer in the tropics

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975georl...2..139f&link_type=abstract

Geophysical Research Letters, vol. 2, Apr. 1975, p. 139-141.

Physics

4

Cloud Cover, Optical Radar, Radar Measurement, Stratosphere, Terrestrial Dust Belt, Tropical Regions, Atmospheric Temperature, Backscattering, Rawinsondes, Temperature Profiles, Tropopause, Visual Observation, Volcanology

Scientific paper

Lidar observations revealed the presence of an unusual transparent whitish cloud veil above Hawaii during the period from October 1974 to early January 1975. The height of the layer was established at 19.5 km MSL, with a typical thickness of 800 m at half maximum. An attempt to attribute the layer to the eruption of the Fuego volcano in Guatemala is hampered by some unresolved questions. The two principal ones are that the stratospheric layer was observed on October 8, two days prior to the eruption in Guatemala, and that in spite of being several thousand miles away from Guatemala, the layer was occasionally 20 times more intense above Hawaii than at midland points.

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