| Автор | Röttger, Jürgen |
| Автор | La Hoz, Cesar |
| Автор | Kelley, Michael C. |
| Автор | Hoppe, Ulf‐Peter |
| Автор | Hall, Chris |
| Дата выпуска | 1988 |
| dc.description | The EISCAT 224 MHz radar was operated in a high spectral resolution mode to study polar mesosphere summer echoes. Intermittent and localized scattering regions of less than 1 km thickness were observed. Gravity waves were present, which were occasionally steepened. Turbulent velocity fluctuations were not obviously related to certain phases of the observed short‐period gravity waves. We explain the large signal amplitudes of these polar mesosphere summer echoes to result from backscatter due to electron density variations, which extend to scales shorter than the scales of neutral turbulence. |
| Формат | application.pdf |
| Копирайт | Copyright 1988 by the American Geophysical Union. |
| Тема | Atmospheric Composition and Structure |
| Тема | Atmospheric Composition and Structure: Middle atmosphere—composition and chemistry |
| Тема | Atmospheric Processes |
| Тема | Meteorology and Atmospheric Dynamics: Polar meteorology |
| Тема | Meteorology and Atmospheric Dynamics: Middle atmosphere dynamics |
| Тема | Meteorology and Atmospheric Dynamics: Turbulence |
| Тема | Meteorology and Atmospheric Dynamics: Waves and tides |
| Название | The structure and dynamics of polar mesosphere summer echoes observed with the EISCAT 224 MHz radar |
| Тип | article |
| DOI | 10.1029/GL015i012p01353 |
| Electronic ISSN | 1944-8007 |
| Print ISSN | 0094-8276 |
| Журнал | Geophysical Research Letters |
| Том | 15 |
| Первая страница | 1353 |
| Последняя страница | 1356 |
| Аффилиация | Röttger, Jürgen; EISCAT Scientific Association, Kiruna |
| Аффилиация | La Hoz, Cesar; EISCAT Scientific Association, Kiruna |
| Аффилиация | Kelley, Michael C.; School of Electrical Engineering, Cornell University, Ithaca |
| Аффилиация | Hoppe, Ulf‐Peter; Norwegian Defence Research Establishment, Kjeller |
| Аффилиация | Hall, Chris; The Auroral Observatory, Tromsö |
| Выпуск | 12 |
| Библиографическая ссылка | Czechowsky, P.R.Rüster, Power spectra of mesospheric velocities in polar regions, Handbook for MAP, 18, 207–211, SCOSTEP Secretariat, Univ. of Illinois, Urbana, IL, 1985 |
| Библиографическая ссылка | Ecklund, W. L.B. B.Balsley, Long‐term observations of the arctic mesosphere with the MST radar at Poker Flat, Alaska, J. Geophys. Res., 86, 7775–7780, 1981 |
| Библиографическая ссылка | Hall, C. M.U.‐P.HoppeP.J.S.WilliamsG.O.L.Jones, Mesospheric measurements using the EISCAT VHF system: first results and their interpretation, Geophys. Res. Lett., 14, 1187–1190, 1987 |
| Библиографическая ссылка | Hocking, W. K., Measurement of turbulent energy disipation rates in the middle atmosphere by radar techniques: A review, Radio Sci., 20, 1403–1422, 1985 |
| Библиографическая ссылка | Hoppe, U.C.HallJ.Röttger, First observations of summer polar mesospheric backscatter echoes with a 224 MHz radar, Geophys. Res. Lett., 15, 28–31, 1988 |
| Библиографическая ссылка | Kelley, M. C.D. T.FarleyJ.Röttger, The effect of cluster ions on anomalous VHF backscatter from the summer polar mesosphere, Geophys. Res. Lett., 14, 1031–1034, 1987 |
| Библиографическая ссылка | Kelley, M. C.J. C.Ulwick, Large and small scale organization of electrons in the high latitude mesosphere: implications of the STATE data, J. Geophys. Res., 93, D6, 7001–7008, 1988 |
| Библиографическая ссылка | Wisemberg, J.G.Kockarts, A new ionospheric scattering mechanism, J. Atmos. Terr. Phys., 45, 47–53, 1983 |
