Volcanic ash
Subtitle: danger to aircraft in the North Pacific
Contributors: Geological Survey (U.S.)
Edition: [Rev. Nov. 1998]
Series: Reducing the risk from volcano hazards; USGS fact sheet -- 030-97; Fact sheet (Geological Survey (U.S.)) -- FS-97-030
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey]
Published: 1998
Place of publication: [Reston, Va.?
Language: eng
Subjects: Volcanic ash, tuff, etc. -- Northwest, Pacific; Volcanic hazard analysis -- Northwest, Pacific; Aeronautics -- Northwest, Pacific -- Safety measures
Other titles: Danger to aircraft in the North Pacific; USGS, science for a changing world
Notes: Caption title

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