Measurements of the High Latitude Middle Atmosphere Dynamic Structure Using Lidar

Philbrick, C. R.; Sipler, D. P.; Dix, B. E.; Davidson, Gilbert; Moskowitz, W.P.

doi:10.21236/ada224390

Cited by 2 publications

(4 citation statements)

References 1 publication

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These include Super Loki Datasondes and Robin-Spheres, Viper Dart Spheres, and piezoelectric accelerometer spheres, launched during the MAPWINE project, and they show a large range gravity wave amplitudes, at times exhibiting >10% density amplitude fluctuation in the mesosphere. The data set also includes two profiles showing the effects when a phase overlap in planetary waves creates a density enhancement > 50% in the late winter 34 . One particularly useful description for the scales of gravity waves to expect in the mesosphere, that shows the range of expected vertical and horizontal wavelengths and periods, is given by Hines 1 , see Fig.…”

Section: Gravity Waves and Planetary Wavesmentioning

confidence: 99%

“…Today, gravity wave studies are not limited to rocket probes, and may be viewed more continuously by using lidar techniques 34,35,43,44 . Figure 8 shows an early study of gravity waves and planetary waves using a Rayleigh Lidar at Poker Flat research Range in Alaska during February 1986 34,35 .…”

Section: Gravity Waves and Planetary Wavesmentioning

confidence: 99%

“…Figure 8 shows an early study of gravity waves and planetary waves using a Rayleigh Lidar at Poker Flat research Range in Alaska during February 1986 34,35 . At stratospheric and mesospheric altitudes, Rayleigh scatter from molecules in the aerosol-free atmosphere can be used to find the atmospheric temperature profiles by integrating the hydrostatic equation down the scattering profile 2,3,34,35 .…”

Section: Gravity Waves and Planetary Wavesmentioning

confidence: 99%

“…The many different properties that can be simultaneously measured using a Raman lidar make it a most valuable tool for these investigations, and the three measurements that are most useful in studying the dynamical processes are the profile sequences of water vapor, aerosol optical extinction and temperature. This paper briefly reviews the types of measurements that are made using Raman lidar to investigate the dynamical processes in the atmosphere; more complete descriptions of these lidar techniques are available [34][35][36][37][38][39][40][41][42] . Brief descriptions of the primary measurement techniques used to obtain the profiles of water, temperature, and aerosol optical extinction are given in Section 2.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Lidar investigations of atmospheric dynamics

Philbrick

Hallén

2015

SPIE Proceedings

View full text Add to dashboard Cite

Ground based lidar techniques using Raleigh and Raman scattering, differential absorption (DIAL), and supercontinuum sources are capable of providing unique signatures to study dynamical processes in the lower atmosphere. The most useful profile signatures of dynamics in the lower atmosphere are available in profiles of time sequences of water vapor and aerosol optical extinction obtained with Raman and DIAL lidars. Water vapor profiles are used to study the scales and motions of daytime convection cells, residual layer bursts into the planetary boundary layer (PBL), variations in height of the PBL layer, cloud formation and dissipation, scale sizes of gravity waves, turbulent eddies, as well as to study the seldom observed phenomena of Brunt-Väisälä oscillations and undular bore waves. Aerosol optical extinction profiles from Raman lidar provide another tracer of dynamics and motion using sequential profiles atmospheric aerosol extinction, where the aerosol distribution is controlled by dynamic, thermodynamic, and photochemical processes. Raman lidar profiles of temperature describe the stability of the lower atmosphere and measure structure features. Rayleigh lidar can provide backscatter profiles of aerosols in the troposphere, and temperature profiles in the stratosphere and mesosphere, where large gravity waves, stratospheric clouds, and noctilucent clouds are observed. Examples of several dynamical features are selected to illustrate interesting processes observed with Raman lidar. Lidar experiments add to our understanding of physical processes that modify atmospheric structure, initiate turbulence and waves, and describe the relationships between energy sources, atmospheric stability parameters, and the observed dynamics.

show abstract

Section: Gravity Waves and Planetary Wavesmentioning

confidence: 99%

Section: Gravity Waves and Planetary Wavesmentioning

confidence: 99%

Section: Gravity Waves and Planetary Wavesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Lidar investigations of atmospheric dynamics

Philbrick

Hallén

2015

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

Stratospheric temperature measurements by two collocated NDSC lidars during UARS validation campaign

Singh¹,

Keckhut²,

McGee³

et al. 1996

J. Geophys. Res.

View full text Add to dashboard Cite

The NASA Goddard Space Flight Center (GSFC) mobile lidar system was deployed at the Observatoire de Haute Provence (OHP), during an Upper Atmosphere Research Satellite (UARS)/Network for Detection of Stratospheric Change (NDSC) correlative measurement campaign (July-August 1992). The objective of this campaign was twofold: to intercompare two independent lidars and to provide ground-based UARS correlative ozone and temperature validation measurements. This paper, for the first time, presents a coincident temperature intercomparison between two independently operating temperature lidar systems of similar capabilities. Systems and retrieval algorithms have been described and discussed in terms of error sources. The comparison of the two analysis have shown very similar results up to the upper mesosphere. The statistical mean differences of 0.5 K in the stratosphere and about 2 K in the mesosphere suggests insignificant bias throughout except below 35 km, where one of the data sets is contaminated by the volcanic aerosols from the eruption of Mount Pinatubo. Profiles of the rootmean-square (RMS) of the differences are in good agreement with random error estimates, except around 35-40 km where RMS is larger. These measurements can be used as the ground reference for UARS temperature validation. However, the spatial-temporal coincidence between satellite and lidar needs to be carefully considered for meaningful validation.

show abstract

Measurements of the High Latitude Middle Atmosphere Dynamic Structure Using Lidar

Cited by 2 publications

References 1 publication

Lidar investigations of atmospheric dynamics

Lidar investigations of atmospheric dynamics

Stratospheric temperature measurements by two collocated NDSC lidars during UARS validation campaign

Contact Info

Product

Resources

About