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Radar measurements of waves in the lower stratosphere
Author(s) -
Rüster R.,
Röttger J.,
Woodman R. F.
Publication year - 1978
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl005i006p00555
Subject(s) - stratosphere , gravity wave , radar , mesosphere , geology , geodesy , range (aeronautics) , atmospheric sciences , phase velocity , meteorology , gravitational wave , physics , optics , astrophysics , materials science , telecommunications , computer science , composite material
Measurements have been carried out using the 50‐MHz radar facility at Jicamarca/Peru applying the spaced receiver technique for investigating dynamical processes in the lower stratosphere. Using cross‐spectrum analysis, an example of observations of significant velocity oscillations with a period of 4 minutes in the height range from 16 to 25 km is presented, which is interpreted as a propagating atmospheric gravity wave with an apparent horizontal phase speed of about 10 m s −1 and a vertical one of 200 m s −1 . The observed period of about 4 minutes agrees quite well with the Väisälä‐Brunt period for that height range.