Premium
Vertical motions of the neutral thermosphere at midlatitude
Author(s) -
Hernandez G.
Publication year - 1982
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/gl009i005p00555
Subject(s) - thermosphere , middle latitudes , atmosphere (unit) , atmospheric sciences , gravity wave , ionosphere , geology , zenith , airglow , doppler effect , physics , geodesy , geophysics , meteorology , gravitational wave , astrophysics , astronomy
Determination of vertical motions in the upper thermosphere at midlatitudes from high time resolution Doppler shift measurements of the [OI]³P ‐ ¹D transition emission at night show that there exist oscillations with ∼ 40 min periodicity and large magnitude (ca. 50 m/s). The behavior of these oscillations is ascribed to the passage of gravity waves through that region of the atmosphere. The results also show that individual (high time resolution) zenith measurements of the neutral thermosphere emissions can not be used as (zero) reference winds with any degree of certainty.