Search Results - "Hibbins, R."

Observations of planetary waves in the mesosphere-lower thermosphere during stratospheric warming events by Stray, N H, Orsolini, Y J, Espy, P J, Limpasuvan, V, Hibbins, R E

“…This study investigates the effect of stratospheric sudden warmings (SSWs) on planetary wave (PW) activity in the mesosphere–lower thermosphere (MLT). PW…”
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Observations of gravity wave forcing of the mesopause region during the January 2013 major Sudden Stratospheric Warming by de Wit, R. J., Hibbins, R. E., Espy, P. J., Orsolini, Y. J., Limpasuvan, V., Kinnison, D. E.

“…Studies of vertical and interhemispheric coupling during Sudden Stratospheric Warmings (SSWs) suggest that gravity wave (GW) momentum flux divergence plays a…”
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Properties of the quasi 16 day wave derived from EOS MLS observations by McDonald, A. J., Hibbins, R. E., Jarvis, M. J.

“…This paper describes the use of EOS Microwave Limb Sounder (MLS) data to observe the field of traveling planetary waves with quasi 16 day periods. This study…”
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QBO Modulation of the Mesopause Gravity Wave Momentum Flux over Tierra del Fuego by De Wit, R. J., Janches, D., Fritts, D. C., Hibbins, R. E.

“…The interannual variability of the mesosphere and lower thermosphere (MLT) gravity wave momentum flux over southern mid latitudes (53.7degS) has been studied…”
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Coupling in the middle atmosphere related to the 2013 major sudden stratospheric warming by de Wit, R. J., Hibbins, R. E., Espy, P. J., Hennum, E. A.

“…The previously reported observation of anomalous eastward gravity wave forcing at mesopause heights around the onset of the January 2013 major sudden…”
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Comparison of mesospheric winds from a high-altitude meteorological analysis system and meteor radar observations during the boreal winters of 2009–2010 and 2012–2013 by McCormack, J., Hoppel, K., Kuhl, D., de Wit, R., Stober, G., Espy, P., Baker, N., Brown, P., Fritts, D., Jacobi, C., Janches, D., Mitchell, N., Ruston, B., Swadley, S., Viner, K., Whitcomb, T., Hibbins, R.

“…We present a study of horizontal winds in the mesosphere and lower thermosphere (MLT) during the boreal winters of 2009–2010 and 2012–2013 produced with a new…”
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Aura MLS observations of the westward-propagating s=1, 16-day planetary wave in the stratosphere, mesosphere and lower thermosphere by Day, K. A., Hibbins, R. E., Mitchell, N. J.

“…The Microwave Limb Sounder (MLS) on the Aura satellite has been used to measure temperatures in the stratosphere, mesosphere and lower thermosphere. The data…”
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Design of a Versatile pH-Responsive Hydrogel for Potential Oral Delivery of Gastric-Sensitive Bioactives by Hibbins, Angus R, Kumar, Pradeep, Choonara, Yahya E, Kondiah, Pierre P D, Marimuthu, Thashree, Du Toit, Lisa C, Pillay, Viness

“…A pH-responsive hydrogel system was prepared by free radical polymerization of acrylamide and methyl acrylic acid in the presence of - '-methylene…”
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On the nature of short-period mesospheric gravity wave propagation over Halley, Antarctica by Nielsen, K., Taylor, M. J., Hibbins, R. E., Jarvis, M. J., Russell III, J. M.

“…As part of a collaborative program between British Antarctic Survey and Utah State University, measurements were made using an all‐sky airglow imager located…”
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HF radar observations of a quasi‐biennial oscillation in midlatitude mesospheric winds by Malhotra, Garima, Ruohoniemi, J. M., Baker, J. B. H., Hibbins, R. E., McWilliams, K. A.

“…The equatorial quasi‐biennial oscillation (QBO) is known to be an important source of interannual variability in the middle‐ and high‐latitude stratosphere…”
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Seasonal variations of gravity wave activity in the lower stratosphere over an Antarctic Peninsula station by Moffat-Griffin, T., Hibbins, R. E., Jarvis, M. J., Colwell, S. R.

“…An 8 year series of 965 high‐resolution radiosonde soundings over Rothera (67°S, 68°W) on the Antarctic Peninsula are used to study gravity wave…”
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Dynamics of the Antarctic and Arctic mesosphere and lower thermosphere – Part 1: Mean winds by Sandford, D. J., Beldon, C. L., Hibbins, R. E., Mitchell, N. J.

“…Zonal and meridional winds have been measured in the upper mesosphere and lower thermosphere at polar latitudes using two ground-based meteor radars. One radar…”
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SuperDARN Observations of Semidiurnal Tidal Variability in the MLT and the Response to Sudden Stratospheric Warming Events by Hibbins, R. E., Espy, P. J., Orsolini, Y. J., Limpasuvan, V., Barnes, R. J.

“…Using meteor wind data from the Super Dual Auroral Radar Network (SuperDARN) in the Northern Hemisphere, we (1) demonstrate that the migrating…”
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The seasonal cycle of gravity wave momentum flux and forcing in the high latitude northern hemisphere mesopause region by de Wit, R.J., Hibbins, R.E., Espy, P.J.

“…A new generation all-sky SKiYMET meteor radar, optimized to measure high-frequency gravity wave momentum flux, was installed in Trondheim, Norway (63.4°N,…”
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Observational evidence of the influence of Antarctic stratospheric ozone variability on middle atmosphere dynamics by Venkateswara Rao, N., Espy, P. J., Hibbins, R. E., Fritts, D. C., Kavanagh, A. J.

“…Modeling results have suggested that the circulation of the stratosphere and mesosphere in spring is strongly affected by the perturbations in heating induced…”
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Observation of a mesospheric front in a thermal-doppler duct over King George Island, Antarctica by Bageston, J V, Wrasse, C M, Batista, P P, Hibbins, R E, Fritts, D C, Gobbi, D, Andrioli, V F

“…A mesospheric front was observed with an all-sky airglow imager on the night of 9–10 July 2007 at Ferraz Station (62° S, 58° W), located on King George island…”
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Quasi-biennial oscillation influence on long-period planetary waves in the Antarctic upper mesosphere by Hibbins, R. E., Jarvis, M. J., Ford, E. A. K.

“…Long‐period planetary wave data derived from meteor wind observations recorded over a 12‐year period with the SuperDARN radar at Halley, Antarctica, are…”
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Winds and tides in the mid-latitude Southern Hemisphere upper mesosphere recorded with the Falkland Islands SuperDARN radar by HIBBINS, R. E, FREEMAN, M. P, MILAN, S. E, RUOHONIEMI, J. M

“…Meteor wind data from the first year of operation of the Falkland Islands SuperDARN radar (52° S, 59° W) are used to characterize the atmospheric tides and…”
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Quasi-biennial modulation of the semidiurnal tide in the upper mesosphere above Halley, Antarctica by Hibbins, R. E., Espy, P. J., Jarvis, M. J.

“…We present an analysis of a long‐term archive of horizontal wind data derived from meteor wind observations from a SuperDARN radar at Halley, Antarctica (76°S,…”
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Vertical and interhemispheric links in the stratosphere-mesosphere as revealed by the day-to-day variability of Aura-MLS temperature data by XU, X, MANSON, A. H, MEEK, C. E, CHSHYOLKOVA, T, DRUMMOND, J. R, HALL, C. M, RIGGIN, D. M, HIBBINS, R. E

“…The coupling processes in the middle atmosphere have been a subject of intense research activity because of their effects on atmospheric circulation,…”
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