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Thermospheric parameters contribution to the formation of Yakutsk F 2-layer diurnal summer time anomaly. Sci Rep 2022; 12:13510. [PMID: 35931714 PMCID: PMC9355984 DOI: 10.1038/s41598-022-17691-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/29/2022] [Indexed: 11/08/2022] Open
Abstract
The role of thermospheric neutral composition in the formation of the Yakutsk diurnal summer time foF2 anomaly is analyzed. Ionospheric stations inside and outside the anomaly area are considered. The effect of neutral composition in foF2 is the most noticeable around noontime hours. The difference between observed noontime foF2 in two areas is significant at the 99.9% confidence level both for monthly median and individual days. The inferred from ionosonde observations and Swarm neutral gas density thermospheric parameters indicate a significant difference between two areas. The inferred exospheric temperature, Tex at Magadan (inside the anomaly area) is significantly larger than Tex at Tunguska (outside the anomaly area). On the contrary, the inferred atomic oxygen [O] at Tunguska is significantly larger than at Magadan. Different [O] abundance in the two areas is the main reason of the observed difference in noontime foF2 values. Vertical plasma drift depending on magnetic declination, D is the only process responsible for the difference between nighttime foF2 at Tunguska and Magadan. A possible mechanism of the revealed difference in thermospheric parameters inside and outside the anomaly area is discussed.
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Thermospheric Neutral Wind Measurements and Investigations across the African Region—A Review. ATMOSPHERE 2022. [DOI: 10.3390/atmos13060863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
This paper briefly reviews studies of thermospheric neutral wind dynamics over the African region. The literature includes a review of the observations of neutral winds over five African locations using the Fabry–Perot Interferometer (FPI), and the comparison between the FPI observations and predictions of the horizontal wind model (HWM-14). So far, there are reports of FPI thermospheric wind measurements in South Africa and Morocco representing the mid-latitude regions in the southern and northern hemispheres, respectively. Within the low latitudes, FPI instruments are installed in the Ivory Coast, Ethiopia, and Nigeria. For the literature reviewed, the years covered in the FPI data are 2018–2019 (South Africa), 2016–2017 (Nigeria), 2015–2016 (Ethiopia), 2013–2016 (Morocco), and 1994–1995 (Ivory Coast). Overall, the HWM-14 reproduces the climatological behavior of the meridional and zonal winds, with varying levels of fidelity for the different regions. The HWM-14 is more accurate in the stations located in the northern hemisphere of the African region; a result attributed to the presence of data during the development of this empirical model.
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Gravity Wave Breaking Associated with Mesospheric Inversion Layers as Measured by the Ship-Borne BEM Monge Lidar and ICON-MIGHTI. ATMOSPHERE 2021. [DOI: 10.3390/atmos12111386] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
During a recent 2020 campaign, the Rayleigh lidar aboard the Bâtiment d’Essais et de Mesures (BEM) Monge conducted high-resolution temperature measurements of the upper Mesosphere and Lower Thermosphere (MLT). These measurements were used to conduct the first validation of ICON-MIGHTI temperatures by Rayleigh lidar. A double Mesospheric Inversion Layer (MIL) as well as shorter-period gravity waves was observed. Zonal and meridional wind speeds were obtained from locally launched radiosondes and the newly launched ICON satellite as well as from the European Centre for Medium-Range Weather Forecasts (ECMWF-ERA5) reanalysis. These three datasets allowed us to see the evolution of the winds in response to the forcing from the MIL and gravity waves. The wavelet analysis of a case study suggests that the wave energy was dissipated in small, intense, transient instabilities about a given wavenumber in addition to via a broad spectrum of breaking waves. This article will also detail the recent hardware advances of the Monge lidar that have allowed for the measurement of MILs and gravity waves at a resolution of 5 min with an effective vertical resolution of 926 m.
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A Comparison of Meteor Radar Observation over China Region with Horizontal Wind Model (HWM14). ATMOSPHERE 2021. [DOI: 10.3390/atmos12010098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This paper compares the wind fields measured by the meteor radar at Mohe, Beijing, Wuhan, and Sanya stations and horizontal wind model (HWM14) predictions. HWM14 appears to successfully reproduce the height-time distribution of the monthly mean zonal winds, although large discrepancies occur in wind speed between the model and measurement, especially in the summer and winter months. For meridional wind, the consistency between model prediction and radar observation is worse than that of zonal wind. The consistency between radar measurements and model prediction at Sanya station is worse than other sites located at higher latitudes. Harmonic analysis reveals large discrepancies in diurnal, semidiurnal, and terdiurnal tides extracted from meteor radar observations and HWM14 predictions.
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Huba JD, Maute A, Crowley G. SAMI3 ICON: MODEL OF THE IONOSPHERE/PLASMASPHERE SYSTEM. SPACE SCIENCE REVIEWS 2017; 212:731-742. [PMID: 30034036 PMCID: PMC6052452 DOI: 10.1007/s11214-017-0415-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 08/30/2017] [Indexed: 06/02/2023]
Abstract
The NRL ionosphere/plasmasphere model SAMI3 has been modified to support the NASA ICON mission. Specifically, SAMI3 ICON has been modified to import the thermospheric composition, temperature, and winds from TIEGCM-ICON and the high-latitude potential from AMIE data. The codes will be run on a daily basis during the ICON mission to provide ionosphere and thermosphere properties to the science community. SAMI3 ICON will provide ionospheric and plasmaspheric parameters such as the electron and ion densities, temperatures, and velocities, as well as the total electron content (TEC), peak ionospheric electron density (NmF2) and height of the F layer at NmF2 (hmF2).
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Affiliation(s)
- J D Huba
- Naval Research Laboratory, Washington, DC 20375, Tel.: 202-767-6863
| | - A Maute
- High Altitude Observatory, Boulder, CO, Tel.: 303-497-1539
| | - G Crowley
- ASTRA, Inc., Boulder, CO, Tel.: 303-993-8039
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Brown KS, Grafton ST, Carlson JM. BICAR: a new algorithm for multiresolution spatiotemporal data fusion. PLoS One 2012; 7:e50268. [PMID: 23209693 PMCID: PMC3508939 DOI: 10.1371/journal.pone.0050268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 10/22/2012] [Indexed: 11/18/2022] Open
Abstract
We introduce a method for spatiotemporal data fusion and demonstrate its performance on three constructed data sets: one entirely simulated, one with temporal speech signals and simulated spatial images, and another with recorded music time series and astronomical images defining the spatial patterns. Each case study is constructed to present specific challenges to test the method and demonstrate its capabilities. Our algorithm, BICAR (Bidirectional Independent Component Averaged Representation), is based on independent component analysis (ICA) and extracts pairs of temporal and spatial sources from two data matrices with arbitrarily different spatiotemporal resolution. We pair the temporal and spatial sources using a physical transfer function that connects the dynamics of the two. BICAR produces a hierarchy of sources ranked according to reproducibility; we show that sources which are more reproducible are more similar to true (known) sources. BICAR is robust to added noise, even in a "worst case" scenario where all physical sources are equally noisy. BICAR is also relatively robust to misspecification of the transfer function. BICAR holds promise as a useful data-driven assimilation method in neuroscience, earth science, astronomy, and other signal processing domains.
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Affiliation(s)
- Kevin S Brown
- Department of Physics, University of California, Santa Barbara, California, United States of America.
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Biondi MA, Meriwether JW, Fejer BG, Gonzalez SA, Hallenbeck DC. Equatorial thermospheric wind changes during the solar cycle: Measurements at Arequipa, Peru, from 1983 to 1990. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91ja01645] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Killeen TL, Won YI, Niciejewski RJ, Burns AG. Upper thermosphere winds and temperatures in the geomagnetic polar cap: Solar cycle, geomagnetic activity, and interplanetary magnetic field dependencies. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95ja01208] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Hagan ME. Quiet time upper thermospheric winds over Millstone Hill between 1984 and 1990. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92ja01605] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fesen CG, Roble RG, Ridley EC. Thermospheric tides simulated by the National Center for Atmospheric Research Thermosphere-Ionosphere General Circulation Model at equinox. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92ja02999] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Balan N, Bailey GJ. Equatorial plasma fountain and its effects: Possibility of an additional layer. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95ja01555] [Citation(s) in RCA: 245] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Forbes JM, Roble RG, Marcos FA. Magnetic activity dependence of high-latitude thermospheric winds and densities below 200 km. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/93ja00155] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Varney RH, Swartz WE, Hysell DL, Huba JD. SAMI2-PE: A model of the ionosphere including multistream interhemispheric photoelectron transport. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011ja017280] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Retterer JM. Forecasting low-latitude radio scintillation with 3-D ionospheric plume models: 1. Plume model. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2008ja013839] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J. M. Retterer
- Space Vehicles Directorate; Air Force Research Laboratory; Hanscom AFB Massachusetts USA
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Drob DP, Emmert JT, Crowley G, Picone JM, Shepherd GG, Skinner W, Hays P, Niciejewski RJ, Larsen M, She CY, Meriwether JW, Hernandez G, Jarvis MJ, Sipler DP, Tepley CA, O'Brien MS, Bowman JR, Wu Q, Murayama Y, Kawamura S, Reid IM, Vincent RA. An empirical model of the Earth's horizontal wind fields: HWM07. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013668] [Citation(s) in RCA: 392] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. P. Drob
- Space Science Division; Naval Research Laboratory; Washington District of Columbia USA
| | - J. T. Emmert
- Space Science Division; Naval Research Laboratory; Washington District of Columbia USA
| | - G. Crowley
- Atmospheric and Space Technology Research Associates; San Antonio Texas USA
| | - J. M. Picone
- Space Science Division; Naval Research Laboratory; Washington District of Columbia USA
| | - G. G. Shepherd
- Centre for Research in Earth and Space Science; York University; Toronto Ontario Canada
| | - W. Skinner
- Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, College of Engineering; University of Michigan; Ann Arbor Michigan USA
| | - P. Hays
- Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, College of Engineering; University of Michigan; Ann Arbor Michigan USA
| | - R. J. Niciejewski
- Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, College of Engineering; University of Michigan; Ann Arbor Michigan USA
| | - M. Larsen
- Department of Physics and Astronomy; Clemson University; Clemson South Carolina USA
| | - C. Y. She
- Physics Department; Colorado State University; Fort Collins Colorado USA
| | - J. W. Meriwether
- Department of Physics and Astronomy; Clemson University; Clemson South Carolina USA
| | - G. Hernandez
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
| | | | - D. P. Sipler
- Haystack Observatory; Massachusetts Institute of Technology; Westford Massachusetts USA
| | - C. A. Tepley
- Arecibo Observatory; Cornell University; Arecibo Puerto Rico
| | - M. S. O'Brien
- Science Applications International Corporation; San Diego California USA
| | - J. R. Bowman
- Science Applications International Corporation; San Diego California USA
| | - Q. Wu
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
| | - Y. Murayama
- National Institute of Information and Communications Technology; Tokyo Japan
| | - S. Kawamura
- National Institute of Information and Communications Technology; Tokyo Japan
| | - I. M. Reid
- School of Chemistry and Physics; University of Adelaide; Adelaide, South Australia Australia
| | - R. A. Vincent
- School of Chemistry and Physics; University of Adelaide; Adelaide, South Australia Australia
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Emmert JT, Drob DP, Shepherd GG, Hernandez G, Jarvis MJ, Meriwether JW, Niciejewski RJ, Sipler DP, Tepley CA. DWM07 global empirical model of upper thermospheric storm-induced disturbance winds. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008ja013541] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J. T. Emmert
- Space Science Division; U.S. Naval Research Laboratory; Washington, D.C. USA
| | - D. P. Drob
- Space Science Division; U.S. Naval Research Laboratory; Washington, D.C. USA
| | - G. G. Shepherd
- Centre for Research in Earth and Space Science; York University; North York, Ontario Canada
| | - G. Hernandez
- Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
| | | | - J. W. Meriwether
- Department of Physics and Astronomy; Clemson University; Clemson South Carolina USA
| | - R. J. Niciejewski
- Space Physics Research Laboratory; University of Michigan; Ann Arbor Michigan USA
| | - D. P. Sipler
- Haystack Observatory; Massachusetts Institute of Technology; Westford Massachusetts USA
| | - C. A. Tepley
- Arecibo Observatory; Cornell University; Arecibo Puerto Rico
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18
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Wang W, Burns AG, Wiltberger M, Solomon SC, Killeen TL. Altitude variations of the horizontal thermospheric winds during geomagnetic storms. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007ja012374] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- W. Wang
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
| | - A. G. Burns
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
| | - M. Wiltberger
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
| | - S. C. Solomon
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
| | - T. L. Killeen
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
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19
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Liu H, Lühr H, Watanabe S. Climatology of the equatorial thermospheric mass density anomaly. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006ja012199] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Huixin Liu
- Earth and Planetary Science Division; Hokkaido University; Sapporo Japan
| | | | - Shigeto Watanabe
- Earth and Planetary Science Division; Hokkaido University; Sapporo Japan
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20
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Emmert JT, Faivre ML, Hernandez G, Jarvis MJ, Meriwether JW, Niciejewski RJ, Sipler DP, Tepley CA. 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. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006ja011948] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Ding F. Occurrence characteristics of medium-scale gravity waves observed in OH and OI nightglow over Adelaide (34.5°S, 138.5°E). ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004096] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Emmert JT, Fejer BG, Sipler DP. Climatology and latitudinal gradients of quiet time thermospheric neutral winds over Millstone Hill from Fabry-Perot interferometer measurements. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002ja009765] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J. T. Emmert
- E. O. Hulburt Center for Space Research; Naval Research Laboratory; Washington, D.C. USA
| | - B. G. Fejer
- Center for Atmospheric and Space Sciences; Utah State University; Logan Utah USA
| | - D. P. Sipler
- Haystack Observatory; Massachusetts Institute of Technology; Westford Massachusetts USA
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23
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Hagan ME, Forbes JM. Migrating and nonmigrating semidiurnal tides in the upper atmosphere excited by tropospheric latent heat release. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002ja009466] [Citation(s) in RCA: 359] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. E. Hagan
- High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
| | - J. M. Forbes
- Department of Aerospace Engineering Sciences; University of Colorado; Boulder Colorado USA
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24
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Hagan ME, Forbes JM. Migrating and nonmigrating diurnal tides in the middle and upper atmosphere excited by tropospheric latent heat release. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd001236] [Citation(s) in RCA: 558] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. E. Hagan
- National Center for Atmospheric Research Boulder Colorado USA
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25
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Larsen MF. Winds and shears in the mesosphere and lower thermosphere: Results from four decades of chemical release wind measurements. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001ja000218] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. F. Larsen
- Department of Physics; Clemson University; Clemson South Carolina USA
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26
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Bougher SW, Roble RG, Fuller-Rowell T. Simulations of the Upper atmospheres of the terrestrial planets. ATMOSPHERES IN THE SOLAR SYSTEM: COMPARATIVE AERONOMY 2002. [DOI: 10.1029/130gm17] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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27
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Richards PG. Ion and neutral density variations during ionospheric storms in September 1974: Comparison of measurement and models. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2002ja009278] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Le PA, Garcés M, Blanc E, Barthélémy M, Drob DP. Acoustic propagation and atmosphere characteristics derived from infrasonic waves generated by the Concorde. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2002; 111:629-641. [PMID: 11837968 DOI: 10.1121/1.1404434] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Infrasonic signals generated by daily supersonic Concorde flights between North America and Europe have been consistently recorded by an array of microbarographs in France. These signals are used to investigate the effects of atmospheric variability on long-range sound propagation. Statistical analysis of wave parameters shows seasonal and daily variations associated with changes in the wind structure of the atmosphere. The measurements are compared to the predictions obtained by tracing rays through realistic atmospheric models. Theoretical ray paths allow a consistent interpretation of the observed wave parameters. Variations in the reflection level, travel time, azimuth deviation and propagation range are explained by the source and propagation models. The angular deviation of a ray's azimuth direction, due to the seasonal and diurnal fluctuations of the transverse wind component, is found to be approximately 5 degrees from the initial launch direction. One application of the seasonal and diurnal variations of the observed phase parameters is the use of ground measurements to estimate fluctuations in the wind velocity at the reflection heights. The simulations point out that care must be taken when ascribing a phase velocity to a turning height. Ray path simulations which allow the correct computation of reflection heights are essential for accurate phase identifications.
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Vontrat-Reberac A, Fontaine D, Blelly PL, Galand M. Theoretical predictions of the effect of cusp and dayside precipitation on the polar ionosphere. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001ja900131] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Millward GH, Müller-Wodarg ICF, Aylward AD, Fuller-Rowell TJ, Richmond AD, Moffett RJ. An investigation into the influence of tidal forcing onFregion equatorial vertical ion drift using a global ionosphere-thermosphere model with coupled electrodynamics. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000342] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Huba JD, Joyce G, Fedder JA. Sami2 is Another Model of the Ionosphere (SAMI2): A new low-latitude ionosphere model. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000ja000035] [Citation(s) in RCA: 398] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Bougher SW, Engel S, Roble RG, Foster B. Comparative terrestrial planet thermospheres: 3. Solar cycle variation of global structure and winds at solstices. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999je001232] [Citation(s) in RCA: 211] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Buonsanto MJ, Witasse OG. An updated climatology of thermospheric neutral winds andFregion ion drifts above Millstone Hill. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900345] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Schlesier AC, Buonsanto MJ. The Millstone Hill ionospheric model and its application to the May 26-27, 1990, ionospheric storm. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900250] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Biondi MA, Sazykin SY, Fejer BG, Meriwether JW, Fesen CG. Equatorial and low latitude thermospheric winds: Measured quiet time variations with season and solar flux from 1980 to 1990. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900174] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Bougher SW, Engel S, Roble RG, Foster B. Comparative terrestrial planet thermospheres: 2. Solar cycle variation of global structure and winds at equinox. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998je001019] [Citation(s) in RCA: 206] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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McClure JP, Singh S, Bamgboye DK, Johnson FS, Kil H. Occurrence of equatorial F region irregularities: Evidence for tropospheric seeding. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98ja02749] [Citation(s) in RCA: 146] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Eccles JV. Modeling investigation of the evening prereversal enhancement of the zonal electric field in the equatorial ionosphere. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98ja02656] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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MacDougall JW, Abdu MA, Jayachandran PT, Cecile JF, Batista IS. Presunrise spread F
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