M. J. Taylor

Utah State University

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Pierre‐Dominique Pautet

Utah State University

147

Yucheng Zhao

Utah State University

David C. Fritts

G & A Technical Software (United States)

B. P. Williams

G & A Technical Software (United States)

Kim Dremstrup

Ramboll (Denmark)

W. R. Pendleton

Utah State University

Stephen D. Eckermann

United States Naval Research Laboratory

A. F. Medeiros

Centro Universitário Una

Katrina Bossert

Arizona State University

H. Takahashi

National Institute for Space Research

Cooperative Institutions

University of Iowa

130

University of Toronto

University of Sydney

Utah State University

University of Colorado Boulder

John Wiley & Sons (United States)

National Institute for Space Research

University of Melbourne

University of British Columbia

University of California, Berkeley

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High-Latitude Gravity Wave Measurements in Noctilucent Clouds and Polar Mesospheric Clouds

Springer eBooks (2011)

M. J. Taylor Pierre‐Dominique Pautet Yucheng Zhao C. E. Randall J. D. Lumpe

Mesopause

10.1007/978-94-007-0326-1_7

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Citations (38)

The life cycle of instability features measured from the Andes Lidar Observatory over Cerro Pachon on 24 March 2012

Journal of Geophysical Research Atmospheres (2014)

J. H. Hecht Kai Wan L. J. Gelinas David C. Fritts R. L. Walterscheid

Abstract The Aerospace Corporation's Nightglow Imager (ANI) observes nighttime OH emission (near 1.6 μm) every 2 s over an approximate 73° field of view. ANI had previously been used to study instability features seen over Maui. Here we describe observations of instabilities seen from 5 to 8 UT on 24 March 2012 over Cerro Pachon, Chile, and compare them with previous results from Maui, with theory, and with Direct Numerical Simulations (DNS). The atmosphere had reduced stability because of the large negative temperature gradients measured by a Na lidar. Thus, regions of dynamical and convective instabilities are expected to form, depending on the value of the Richardson number. Bright primary instabilities are formed with a horizontal wavelength near 9 km and showed the subsequent formation of secondary instabilities, rarely seen over Maui, consistent with the primaries being dynamical instabilities. The ratio of the primary to secondary horizontal wavelength was greater over Chile than over Maui. After dissipation of the instabilities, smaller‐scale features appeared with sizes in the buoyancy subrange between 1.5 and 6 km. Their size spectra were consistent with the model of Weinstock (1978) if the turbulence is considered to be increasing. The DNS results produce secondary instabilities with sizes comparable to what is seen in the images although their spectra are somewhat steeper than is observed. However, the DNS results also show that after the complete decay of the primary features, scale sizes considerably smaller than 1 km are produced and these cannot be seen by the ANI instrument.

Convective instability

Richardson number

10.1002/2014jd021726

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Citations (55)

Summer-time nocturnal wave characteristics in mesospheric OH and O2 airglow emissions

Earth Planets and Space (2008)

A. Guharay A. Taori M. J. Taylor

Abstract The mesospheric temperature mapper (MTM) measurements on mesospheric OH (6, 2) and O 2 (0, 1) band emissions from Maui, Hawaii during July, 2002 show significant day-to-day variability. The nocturnal variability reveals prominent wave signatures with a periodicity ranging from 6 to 13 h. For better characterization of the nocturnal wave in the data, a Krassovsky’s η (∼|η| e i φ ) analysis was carried out. Deduced Krassovsky parameters show significant variability, with ranges of |η| ∼ 1.7–3.9 for the OH data and ∼4.3–13 for the O 2 data. The phase values of Krassovsky parameters exhibit larger variability, with variations from approximately −91° to +23° for the OH data and −45° to −10° for the O 2 data. Comparison of these values with existing observations and models show large deviations from model values and relatively better agreements with the observed values reported by other investigators. The deduced vertical wavelength from |η| and φ indicates that our data is mostly dominated by upward propagating waves with occasional high values ≥100 km, implying possible evanescent waves.

Airglow

10.1186/bf03352853

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Citations (17)

Mesosphere and Lower Thermosphere changes caused by the July 2, 2019 total Eclipse in South America over the Andes Lidar Observatory, Cerro Pachon, Chile

Fábio Vargas Alan Z. Liu G. R. Swenson Carlos Segura Pedro Vega-Jorquera

Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Journal of Geophysical Research - Atmospheres. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Mesosphere and Lower Thermosphere changes caused by the July 2, 2019 total Eclipse in South America over the Andes Lidar Observatory, Cerro Pachon, ChileAuthorsFabioVargasiDAlan ZLiuiDGary R.SwensoniDCarlosSeguraPedroVega-JorqueraiDJavierFuentesPierre-DominiquePautetiDMichael J.TaylorYuchengZhaoY. JadeMortoniDHarrison WBourneiDSee all authors Fabio VargasiDCorresponding Author• Submitting AuthorUniversity of Illinois at Urbana ChampaigniDhttps://orcid.org/0000-0002-2355-8053view email addressThe email was not providedcopy email addressAlan Z LiuiDEmbry-Riddle Aeronautical UniversityiDhttps://orcid.org/0000-0002-1834-7120view email addressThe email was not providedcopy email addressGary R. SwensoniDUniversity of Illinois at Urbana ChampaigniDhttps://orcid.org/0000-0003-3412-4952view email addressThe email was not providedcopy email addressCarlos SeguraAndes Lidar Observatoryview email addressThe email was not providedcopy email addressPedro Vega-JorqueraiDUniversidad de La SerenaiDhttps://orcid.org/0000-0002-9618-585Xview email addressThe email was not providedcopy email addressJavier FuentesNOIR Lab, Gemini South Observatoryview email addressThe email was not providedcopy email addressPierre-Dominique PautetiDUtah State UiversityiDhttps://orcid.org/0000-0001-9452-7337view email addressThe email was not providedcopy email addressMichael J. TaylorUtah State Universityview email addressThe email was not providedcopy email addressYucheng ZhaoUtah State Universityview email addressThe email was not providedcopy email addressY. Jade MortoniDUniversity of Colorado BoulderiDhttps://orcid.org/0000-0001-9173-2888view email addressThe email was not providedcopy email addressHarrison W BourneiDUniversity of Colorado BoulderiDhttps://orcid.org/0000-0002-3839-0513view email addressThe email was not providedcopy email address

10.1002/essoar.10506796.1

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Climatology of short-period mesospheric gravity waves over Halley, Antarctica (76°S, 27°W)

Journal of Atmospheric and Solar-Terrestrial Physics (2009)

Kim Dremstrup M. J. Taylor R. E. Hibbins M. J. Jarvis

Airglow

10.1016/j.jastp.2009.04.005

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Citations (46)

Investigating the Ionospheric Bubble Structures Observed from Northeastern Brazil

Pierre‐Dominique Pautet Narayan P. Chapagain M. J. Taylor A. F. Medeiros R. A. Buriti