Works matching IS 00948276 AND DT 1994 AND VI 21 AND IP 17

Results: 45

Observations of ion acoustic fluctuations in the auroral topside ionosphere by the FREJA S/C.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1835, doi. 10.1029/94GL01290

By:

Wahlund, J.-E.;
Louarn, P.;
Chust, T.;
de Feraudy, H.;
Roux, A.;
Holback, B.;
Cabrit, B.;
Eriksson, A. I.;
Kintner, P. M.;
Kelley, M. C.;
Bonnell, J.;
Chesney, S.

Publication type:

Article

Solar ultraviolet radiation and total ozone, as derived from satellite and ground-based instrumentation.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1787, doi. 10.1029/93GL02090

By:

Varotsos, C.

Publication type:

Article

Freja observations of multiple injection events in cusp.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1919, doi. 10.1029/94GL00892

By:

Norberg, O.;
Yamauchi, M.;
Eliasson, L.;
Lundin, R.

Publication type:

Article

the thickness of upper mantle discontinuities, as inferred from short-period J-array data.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1811, doi. 10.1029/94GL01418

By:

Yamazaki, Akira;
Hirahara, Kazuro

Publication type:

Article

Cerenkov excitation of whistler/helicon waves by ionospheric HF heating.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1767, doi. 10.1029/94GL01075

By:

Papadopoulos, K.;
Zhou, H.-B.;
Chang, C.-L.

Publication type:

Article

Large-scale auroral plasma density cavities observed by Freja.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1903, doi. 10.1029/94GL00888

By:

Lundin, R.;
Eliasson, L.;
Haerendel, G.;
Boehm, M.;
Holback, B.

Publication type:

Article

Freja observatons of correlated small-scale density depletions and enhanced lower hybrid waves.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1843, doi. 10.1029/94GL00174

By:

Eriksson, A. I.;
Holback, B.;
Dovner, P. O.;
Boström, R.;
Holmgren, G.;
André, M.;
Eliasson, L.;
Kintner, P. M.

Publication type:

Article

Freja's contribution to the ISTP event of October 27, 1992. A distorted magnetosphere.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1871, doi. 10.1029/94GL01365

By:

Potemra, T. A.;
Zanetti, L. J.;
Anderson, B. J.;
Bythrow, P. F.;
Ohtani, S.

Publication type:

Article

Temperature dependent CH3OCl formation in the reaction between CH3O2 and ClO.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1795, doi. 10.1029/94GL01280

By:

Helleis, Frank;
Crowley, John;
Moortgat, Geert

Publication type:

Article

Freja observations of electromagnetic ion cyclotron ELF waves and transverse oxygen ion acceleration on auroral field lines.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1855, doi. 10.1029/94GL01363

By:

Erlandson, R. E.;
Zanetti, L. J.;
Acuña, M. H.;
Eriksson, A. I.;
Eliasson, L.;
Boehm, M. H.;
Blomberg, L. G.

Publication type:

Article

Transverse ion energization and wave emissions observed by the Freja satellite.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1915, doi. 10.1029/94GL00699

By:

André, Mats;
Norqvist, Patrik;
Vaivads, Andris;
Eliasson, Lars;
Norberg, Olle;
Eriksson, Anders I.;
Holback, Bengt

Publication type:

Article

Ionospheric currents correlated with geomagnetic induced currents; Freja magnetic field measurements and the Sunburst Monitor System.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1867, doi. 10.1029/94GL01425

By:

Zanetti, L. J.;
Potemra, T. A.;
Anderson, B. J.;
Erlandson, R. E.;
Holland, D. B.;
Acuña, M. H.;
Kappenman, J.;
Lesher, R.;
Feero, B.

Publication type:

Article

Reply to Lockwood, Cowley, and Smith.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1821, doi. 10.1029/94GL01366

By:

Newell, Patrick T.;
Sibeck, David G.

Publication type:

Article

Sub-kilometer thermal plasma structure near 1750 km altitude in the polar cusp/cleft.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1907, doi. 10.1029/94GL00887

By:

Knudsen, D. J.;
Whalen, B. A.;
Yau, A. W.;
Greffen, M. J.;
Eriksson, A. I.;
Lloyd, N.;
Boehm, M.;
Clemmons, J.;
Blomberg, L. G.

Publication type:

Article

Simultaneous three-frequency Na lidar measurements of radial wind and temperature in the mesopause region.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1771, doi. 10.1029/94GL01417

By:

She, C. Y.;
Yu, J. R.

Publication type:

Article

An experimental investigation of the spin-up of a neutrally stratified fluid core.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1815, doi. 10.1029/94GL01369

By:

Davis, R. G.

Publication type:

Article

The Freja Project.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1823, doi. 10.1029/94GL01424

By:

Lundin, R.;
Haerendel, G.;
Grahn, S.

Publication type:

Article

Freja observations of narrow inverted-V electron precipitation by the Two-Dimensional Electron Spectrometer.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1895, doi. 10.1029/94GL00370

By:

Boehm, M. H.;
Paschmann, G.;
Clemmons, J.;
Haerendel, G.;
Eliasson, L.;
Lundin, R.

Publication type:

Article

Observation by Ulysses of hot (∼270 keV) coronal particles at 32° south heliolatitude and 4.6 AU.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1747, doi. 10.1029/94GL01577

By:

Armstrong, T. P.;
Haggerty, D.;
Lanzerotti, L. J.;
Maclennan, C. G.;
Roelof, E. C.;
Pick, M.;
Simnett, G. M.;
Gold, R. E.;
Krimigis, S. M.;
Anderson, K. A.;
Lin, R. P.;
Sarris, E. T.;
Forsyth, R.;
Balogh, A.

Publication type:

Article

On intense diverging electric fields associated with black aurora.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1859, doi. 10.1029/94GL00194

By:

Marklund, Göran;
Blomberg, Lars;
Fälthammar, Carl-Gunne;
Lindqvist, Per-Arne

Publication type:

Article

Stratospheric denitrification due to polar aerosol formation: Implications for a future atmosphere with increased CO2.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1791, doi. 10.1029/94GL01136

By:

Pitari, Giovanni;
Ricciardulli, Lucrezia

Publication type:

Article

Wave environment inside an inverted-V electron event observed by Freja.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1839, doi. 10.1029/94GL00565

By:

Stasiewicz, K.;
Gustafsson, G.;
Holmgren, G.;
Holback, B.;
Eliasson, L.;
Kintner, P. M.;
Zanetti, L.

Publication type:

Article

Alfvénon, driven reconnection and the direct generation of the field-aligned current.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1755, doi. 10.1029/94GL01327

By:

Song, Yan;
Lysak, Robert L.

Publication type:

Article

Freja UV imager observations of spatially periodic auroral distortions.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1887, doi. 10.1029/94GL00880

By:

Murphree, J. S.;
Johnson, M. L.;
Cogger, L. L.;
Hearn, D. J.

Publication type:

Article

Freja observations of heating and precipitation of positive ions.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1911, doi. 10.1029/94GL01067

By:

Eliasson, L.;
André, M.;
Eriksson, A.;
Norqvist, P.;
Norberg, O.;
Lundin, R.;
Holback, B.;
Koskinen, H.;
Borg, H.;
Boehm, M.

Publication type:

Article

On ion acoustic turbulence and the nonlinear evolution of kinetic Alfvén waves in aurora.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1831, doi. 10.1029/94GL01289

By:

Wahlund, J.-E.;
Louarn, P.;
Chust, T.;
de Feraudy, H.;
Roux, A.;
Holback, B.;
Dovner, P-O.;
Holmgren, G.

Publication type:

Article

Periodic longitudinal structure of field-aligned currents in the dawn sector: Large-scale meandering of an auroral electrojet.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1879, doi. 10.1029/94GL00703

By:

Ohtani, S.;
Zanetti, L. J.;
Potemra, T. A.;
Baker, K. B.;
Ruohoniemi, J. M.;
Lui, A. T. Y.

Publication type:

Article

Magnetic reconnection ahead of a coronal mass ejection.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1751, doi. 10.1029/94GL01077

By:

McComas, D. J.;
Gosling, J. T.;
Hammond, C. M.;
Moldwin, M. B.;
Phillips, J. L.;
Forsyth, R. J.

Publication type:

Article

Ionospheric response to traveling convection twin vortices.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1759, doi. 10.1029/94GL01059

By:

Schunk, R. W.;
Zhu, L.;
Sojka, J. J.

Publication type:

Article

High-resolution electromagnetic images of conducting zones in an upthrust crustal block.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1807, doi. 10.1029/94GL01106

By:

Jones, Alan G.;
Bailey, Richard C.;
Mareschal, Marianne

Publication type:

Article

Fine structure of field-aligned current sheets deduced from spacecraft and ground-based observations: Initial FREJA results.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1883, doi. 10.1029/94GL01278

By:

Lühr, H.;
Warnecke, J.;
Zanetti, L. J.;
Lindqvist, P. A.;
Hughes, T. J.

Publication type:

Article

The ionospheric signature of the cusp: A case study using Freja and the Sondrestrom radar.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1923, doi. 10.1029/94GL00698

By:

Nilsson, Hans;
Kirkwood, Sheila;
Eliasson, Lars;
Norberg, Olle;
Clemmons, James;
Boehm, Manfred

Publication type:

Article

Freja multiprobe observations of electrostatic solitary structures.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1827, doi. 10.1029/94GL00886

By:

Dovner, P. O.;
Eriksson, A. I.;
Boström, R.;
Holback, B.

Publication type:

Article

Observation of kinetic Alfvén waves by the FREJA spacecraft.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1847, doi. 10.1029/94GL00882

By:

Louarn, P.;
Wahlund, J. E.;
Chust, T.;
de Feraudy, H.;
Roux, A.;
Holback, B.;
Dovner, P. O.;
Eriksson, A. I.;
Holmgren, G.

Publication type:

Article

Ozone variations in the Scandinavian sector of the Arctic during the AASE Campaign and 1989.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1775, doi. 10.1029/94GL01069

By:

Henriksen, K.;
Larsen, S. H. H.;
Shumilov, O. I.;
Thorkelsson, B.

Publication type:

Article

Large slip velocity of the surface rupture associated with the 1990 Luzon Earthquake.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1799, doi. 10.1029/94GL00515

By:

Yomogida, Kiyoshi;
Nakata, Takashi

Publication type:

Article

Ozone variations related to volcanic activity and disappearance of SO2.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1783, doi. 10.1029/94GL01353

By:

Roldugin, V. C.;
Henriksen, K.

Publication type:

Article

Electric fields derived from electron drift measurements.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1863, doi. 10.1029/94GL01072

By:

Kletzing, C. A.;
Paschmann, G.;
Boehm, M. H.;
Haerendel, G.;
Sckopke, N.;
Baumjohann, W.;
Torbert, R. B.;
Marklund, G.;
Lindqvist, P.-A.

Publication type:

Article

Dispersive Pc1 bursts observed by Freja.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1851, doi. 10.1029/94GL01584

By:

Mursula, K.;
Blomberg, L. G.;
Lindqvist, P. -A.;
Marklund, G. T.;
Bräysy, T.;
Rasinkangas, R.;
Tanskanen, P.

Publication type:

Article

Comment on ' By fluctuations in the magnetosheath and azimuthal flow velocity transients in the dayside ionosphere' by Newell and Sibeck.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1819, doi. 10.1029/94GL01360

By:

Lockwood, M.;
Cowley, S. W. H.;
Smith, M. F.

Publication type:

Article

Evaluation of an empirical radar backscatter model for predicting backscatter characteristics of geologic units at Pisgah Volcanic Field, California.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1803, doi. 10.1029/94GL01253

By:

Gaddis, Lisa R.

Publication type:

Article

Near-Earth substorm onset: A coordinated study.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1875, doi. 10.1029/94GL01426

By:

Persson, M. A. L.;
Opgenoorth, H. J.;
Pulkkinen, T. I.;
Eriksson, A. I.;
Dovner, P. O.;
Reeves, G. D.;
Belian, R. D.;
André, M.;
Blomberg, L. G.;
Erlandson, R. E.;
Boehm, M. H.;
Aikio, A. T.;
Häggström, I.

Publication type:

Article

Signatures of energy-time dispersed electron fluxes measured by Freja.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1899, doi. 10.1029/94GL00885

By:

Clemmons, J. H.;
Boehm, M. H.;
Paschmann, G. E.;
Haerendel, G.

Publication type:

Article

A three dimensional study of E region irregularity patches in the equatorial anomaly region using the Chung-Li VHF radar.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1763, doi. 10.1029/94GL01195

By:

Pan, C. J.;
Liu, C. H.;
Röttger, J.;
Su, S. Y.

Publication type:

Article

Inverted-V events simultaneously observed with the Freja satellite and from the ground.

Published in:

Geophysical Research Letters, 1994, v. 21, n. 17, p. 1891, doi. 10.1029/94GL01692

By:

Haerendel, G.;
Frey, H. U.;
Bauer, O. H.;
Rieger, E.;
Clemmons, J.;
Boehm, M. H.;
Wallis, D. D.;
Lühr, H.

Publication type:

Article