Lidar studies of stratospheric gravity waves: a comparison of analysis techniques

N. J. Mitchell, L. Thomas, A. K.P. Marsh

Research output: Contribution to journalArticle

Abstract

Rayleigh-scatter observations of molecular densities at stratospheric heights over Aberystwyth (52.4°N, 4.1°E) are examined to reveal the presence of gravity-wave motions in the height range 30-60 km. Three separate analytic approaches are applied, and it is found that significant differences in measured gravity wave parameters arise from those different methods. Examples of density and temperature profiles are presented which illustrate both these differences and some of the limitations of each technique. In particular, it is shown that one technique is insensitive to the presence of gravity-wave motions of period greater than about twice the data set length, and that the other two can produce spurious wave-like features of very low or zero vertical phase velocity. -from Authors

LanguageEnglish
Pages705-711
Number of pages7
JournalAnnales Geophysicae
Volume8
Issue number10
StatusPublished - 1 Jan 1990

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Geology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Lidar studies of stratospheric gravity waves : a comparison of analysis techniques. / Mitchell, N. J.; Thomas, L.; Marsh, A. K.P.

In: Annales Geophysicae, Vol. 8, No. 10, 01.01.1990, p. 705-711.

Research output: Contribution to journalArticle

@article{05752c3e73874842a031becec3e037a0,
title = "Lidar studies of stratospheric gravity waves: a comparison of analysis techniques",
abstract = "Rayleigh-scatter observations of molecular densities at stratospheric heights over Aberystwyth (52.4°N, 4.1°E) are examined to reveal the presence of gravity-wave motions in the height range 30-60 km. Three separate analytic approaches are applied, and it is found that significant differences in measured gravity wave parameters arise from those different methods. Examples of density and temperature profiles are presented which illustrate both these differences and some of the limitations of each technique. In particular, it is shown that one technique is insensitive to the presence of gravity-wave motions of period greater than about twice the data set length, and that the other two can produce spurious wave-like features of very low or zero vertical phase velocity. -from Authors",
author = "Mitchell, {N. J.} and L. Thomas and Marsh, {A. K.P.}",
year = "1990",
month = "1",
day = "1",
language = "English",
volume = "8",
pages = "705--711",
journal = "Annales Geophysicae",
issn = "0992-7689",
publisher = "European Geosciences Union",
number = "10",

}

TY - JOUR

T1 - Lidar studies of stratospheric gravity waves

T2 - Annales Geophysicae

AU - Mitchell, N. J.

AU - Thomas, L.

AU - Marsh, A. K.P.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - Rayleigh-scatter observations of molecular densities at stratospheric heights over Aberystwyth (52.4°N, 4.1°E) are examined to reveal the presence of gravity-wave motions in the height range 30-60 km. Three separate analytic approaches are applied, and it is found that significant differences in measured gravity wave parameters arise from those different methods. Examples of density and temperature profiles are presented which illustrate both these differences and some of the limitations of each technique. In particular, it is shown that one technique is insensitive to the presence of gravity-wave motions of period greater than about twice the data set length, and that the other two can produce spurious wave-like features of very low or zero vertical phase velocity. -from Authors

AB - Rayleigh-scatter observations of molecular densities at stratospheric heights over Aberystwyth (52.4°N, 4.1°E) are examined to reveal the presence of gravity-wave motions in the height range 30-60 km. Three separate analytic approaches are applied, and it is found that significant differences in measured gravity wave parameters arise from those different methods. Examples of density and temperature profiles are presented which illustrate both these differences and some of the limitations of each technique. In particular, it is shown that one technique is insensitive to the presence of gravity-wave motions of period greater than about twice the data set length, and that the other two can produce spurious wave-like features of very low or zero vertical phase velocity. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0025627814&partnerID=8YFLogxK

M3 - Article

VL - 8

SP - 705

EP - 711

JO - Annales Geophysicae

JF - Annales Geophysicae

SN - 0992-7689

IS - 10

ER -