Search Results - "Sipler, D P"

An empirical model of the Earth's horizontal wind fields: HWM07 by Drob, D. P., Emmert, J. T., Crowley, G., Picone, J. M., Shepherd, G. G., Skinner, W., Hays, P., Niciejewski, R. J., Larsen, M., She, C. Y., Meriwether, J. W., Hernandez, G., Jarvis, M. J., Sipler, D. P., Tepley, C. A., O'Brien, M. S., Bowman, J. R., Wu, Q., Murayama, Y., Kawamura, S., Reid, I. M., Vincent, R. A.

“…The new Horizontal Wind Model (HWM07) provides a statistical representation of the horizontal wind fields of the Earth's atmosphere from the ground to the…”
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DWM07 global empirical model of upper thermospheric storm-induced disturbance winds by Emmert, J. T., Drob, D. P., Shepherd, G. G., Hernandez, G., Jarvis, M. J., Meriwether, J. W., Niciejewski, R. J., Sipler, D. P., Tepley, C. A.

“…We present a global empirical disturbance wind model (DWM07) that represents average geospace‐storm‐induced perturbations of upper thermospheric (200–600 km…”
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Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 1. Local time, latitudinal, seasonal, and solar cycle dependence by Emmert, J. T., Faivre, M. L., Hernandez, G., Jarvis, M. J., Meriwether, J. W., Niciejewski, R. J., Sipler, D. P., Tepley, C. A.

“…We analyze ground‐based Fabry‐Perot interferometer observations of upper thermospheric (∼250 km) horizontal neutral winds derived from Doppler shifts in the…”
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Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 2. High-latitude circulation and interplanetary magnetic field dependence by Emmert, J. T., Hernandez, G., Jarvis, M. J., Niciejewski, R. J., Sipler, D. P., Vennerstrom, S.

“…We analyze upper thermospheric (∼250 km) nighttime horizontal neutral wind patterns, during geomagnetically quiet (Kp < 3) conditions, over the following…”
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Climatology and storm time dependence of nighttime thermospheric neutral winds over Millstone Hill by Fejer, B. G., Emmert, J. T., Sipler, D. P.

“…We use 630.0 nm nightglow Fabry‐Perot measurements over Millstone Hill from 1989–1999 to study the climatology and storm time dependence of the midlatitude…”
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Climatology and latitudinal gradients of quiet time thermospheric neutral winds over Millstone Hill from Fabry-Perot interferometer measurements by Emmert, J. T., Fejer, B. G., Sipler, D. P.

“…Midlatitude nighttime thermospheric neutral winds are strongly dependent on season, solar activity, and latitude. We use an extensive database of wind…”
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Simulation of hot oxygen effects on ground-based Fabry-Perot determinations of thermospheric temperatures by Sipler, D. P., Biondi, M. A.

“…The response of a ground‐based Fabry‐Perot interferometer (FPI) to predicted non‐Maxwellian energy distributions of atomic oxygen in the F region is…”
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Comparison of models and measurements at Millstone Hill during the January 24-26, 1993, minor storm interval by Buonsanto, M. J., Codrescu, M., Emery, B. A., Fesen, C. G., Fuller‐Rowell, T. J., Melendez‐Alvira, D. J., Sipler, D. P.

“…Results from four first‐principle models are compared with Millstone Hill incoherent scatter radar and Fabry‐Perot interferometer measurements taken during…”
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Estimation of the O+, O collision frequency from coincident radar and Fabry-Perot observations at Millstone Hill by Buonsanto, M. J., Sipler, D. P., Davenport, G. B., Holt, J. M.

“…The formula for the O+, O momentum transfer collision frequency has been uncertain due to a discrepancy between results of theoretical calculations and some of…”
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Time dependent thermospheric neutral response to the 2-11 November 1993 storm period by Emery, BA, Lathuillere, C, Richards, P G, Roble, R G, Buonsanto, MJ, Knipp, D J, Wilkinson, P, Sipler, D P, Niciejewski, R

“…Many satellite and ground-based observations from 2-11 November 1993 were combined in the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) procedure…”
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Rayleigh lidar observations of a mesospheric inversion layer during night and day by Duck, Thomas J., Sipler, Dwight P., Salah, Joseph E., Meriwether, John W.

“…A narrow field of view Rayleigh lidar has been constructed at Millstone Hill / MIT Haystack Observatory (42.6°N, 71.5°W) for observations of middle atmospheric…”
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Dynamical effects of geomagnetic storms and substorms in the middle-latitude ionosphere: An observational campaign by Pi, Xiaoqing, Mendillo, Michael, Hughes, W. Jeffrey, Buonsanto, Michael J., Sipler, Dwight P., Kelly, John, Zhou, Qihou, Lu, Gang, Hughes, Terrence J.

“…An observational campaign was conducted in October 1992 for ∼36 hours, at three high‐ to low‐latitude sites near 75°W longitude (Sondre Stromfjord, Millstone…”
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Common-volume measurements of mesospheric winds using radar and optical instruments: 1. Comparison of observations by Salah, J.E, Goncharenko, L.P, Sipler, D.P, Clark, R.R, Tate, R.J

“…The Millstone Hill incoherent scatter radar (42.6°N, 71.5°W) and the nearby Durham meteor wind radar (43.1°N, 70.9°W) have been used to study the structure of…”
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Simulation of hot oxygen effects on ground-based Fabry-Perot determinations of thermospheric temperatures by SIPLER, D. P, BIONDI, M. A

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Climatology and latitudinal gradients of quiet time thermospheric neutral winds over Millstone Hill from Fabry-Perot interferometer measurements by EMMERT, J. T, FEJER, B. G, SIPLER, D. P

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Climatology and storm time dependence of nighttime thermospheric neutral winds over Millstone Hill by Fejer, B G, Emmert, J T, Sipler, D P

“…We use 630.0 nm nightglow Fabry-Perot measurements over Millstone Hill from 1989-1999 to study the climatology and storm time dependence of the midlatitude…”
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Vertical winds in the midlatitude thermosphere from Fabry-Perot interferometer measurements by Sipler, D.P., Biondi, M.A., Zipf, M.E.

“…Monostatic and bistatic measurements of thermospheric winds have been made with Fabry-Perot Interferometers at the Millstone Hill and Laurel Ridge…”
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Common-volume measurements of mesospheric winds using radar and optical instruments. I - Comparison of observations by Salah, J E, Goncharenko, L P, Sipler, D P, Clark, R R, Tate, R J

“…A study was carried out that focused on common-volume measurements of mesospheric winds using radio and optical instruments associated with the Millstone Hill…”
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Estimation of the O(+), O collision frequency from coincident radar and Fabry-Perot observations at Millstone Hill by Buonsanto, M J, Sipler, D P, Davenport, G B, Holt, J M

“…We present results of a new analysis of data from 30 nights of coincident incoherent scatter radar (ISR) and Fabry-Perot interferometer (FPI) experiments…”
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Estimation of the O super(+) , O collision frequency from coincident radar and Fabry-Perot observations at Millstone Hill by Buonsanto, MJ, Sipler, D P, Davenport, G B, Holt, J M

“…The formula for the O super(+) , O momentum transfer collision frequency has been uncertain due to a discrepancy between results of theoretical calculations…”
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