Publications by IRF scientists 1999

Books 1999

Thidé, B., Electromagnetic Field Theory, A textbook on advanced electrodynamics, http://www.plasma.uu.se/CED/Book, Uppsala, 1999.

Carozzi, T., A. Eriksson, B. Lundborg, B. Thidé and M. Waldenvik, Electromagnetic Field Theory Exercises, An exercise book on advanced electrodynamics, http://www.plasma.uu.se/CED/Exercises, Uppsala, 1999.

Refereed papers

Amm, O., A. Pajunpää and U. Brändström, Spatial distribution of conductances and currents associated with a north-south auroral form during a multiple-substorm period, Ann. Geophysicae, 17, 1385-1396, 1999.

Brandt, P. C:son, S. Barabash, O. Norberg, R. Lundin, E. C. Roelof and C. J. Chase, ENA imaging at low altitudes from the Swedish micro satellite Astrid: Images and spectral analysis, J. Geophys. Res., 104, A2, 2367-2379, 1999.

Brandt, P. C:son, ENA imaging of planetary magnetospheres, Doctoral Thesis, IRF Scientific Report 259, October 1999.

Brändström, B. U. E., T. B. Leyser, Å. Steen, M. T. Rietveld, B. Gustavsson, T. Aso and M. Ejiri, Unambigous evidence of HF pump-enhanced airglow at auroral latitudes, Geophys. Res. Lett., 26, 3561-3564, 1999.

Chilson, P., S. Kirkwood and A. Nilsson, The Esrange MST radar: A brief introduction and procedure for range validation using balloons, Radio Sci., 34, 427-436, 1999.

Ebihara, Y., S. Barabash and M. Ejiri, On global production rates of energetic neutral atoms (ENAs) and their association with the Dst index, Geophys. Res. Lett., 26, 2929-2932, 1999.

Enell, C. F., Å. Steen, T. Wagner, U. Friess, K. Pfeilsticker, U. Platt and K.-H. Fricke, Occurrence of polar stratospheric clouds at Kiruna, Ann. Geophysicae, 17, 1457-1462, 1999.

Gleisner, H., and H. Lundstedt, Ring current influence on auroral electrojet predictions, Ann. Geophysicae, 17, 1268-1275, 1999.

Holmström, M., Solving hyperbolic PDEs using interpolating wavelets, SIAM Journal on Scientific Computing, 2, (21), 405-420, 1999.

Hooper, D. A., Signal and noise level estimation for narrow spectral width returns obseved by the Indian MST radat, Radio Sci., 34, 859-870, 1999.

Hultqvist, B., Acceleration of ionospheric outflowing ions, Phys. Chem. Earth (C), 24, 247-257, 1999.

Isham, B., C. La Hoz, M. T. Rietveld, T. Hagfors and T. B. Leyser, Cavitating Langmuir turbulence observed during high-latitude ionospheric wave interaction experiments, Phys. Rev. Lett., 83, 2576-2579, 1999.

Isham, B., T. Hagfors, C. LaHoz, W. Kofman and T. Leyser, A search for the location of the HF excitation of enhanced ion acoustic and Langmuir waves with EISCAT and the Tromso heater, Radiophys. Quantum Electron., 42, 607-618, 1999.

Istomin, Ya. N., and T. B. Leyser, Quantization of plasma density irregularities under the action of a powerful electromagnetic wave: Spectrum of upper hybrid oscillations self consistently trapped in the density cavities, Radiophys. Quantum Electron., 42, 641-650, 1999.

Kistler, L. M., B. Klecker, V. K. Jordanova, E. Moebius, M. A. Popecki, D. Patel, J. A. Sauvaud, H. Reme, A. M. Di Lellis, A. Korth, M. McCarthy, R. Cerulli, M. B. Bavassano Cattaneo, L. Eliasson, C. W. Carlson, G. K. Parks, G. Paschmann, W. Baumjohann and G. Haerendel, Testing electric field models using ring current ion energy spectra from the Equator-S ion composition (ESIC) instrument, Ann Geophysicae, 17 (12), 1611-1621, 1999.

Kjus, S. H., Lower hybrid wave cavities – a statistical study, Licentiate thesis, IRF Scientific Report 254, March 1999.

Liszka, L., Decomposition of infrasonic signals using a wavelet transform. J. Low Freq. Sound. Vib., 18, No. 2, 85, 1999.

Liszka, L., and M. Holmström, Extraction of a deterministic component from ROSAT X-ray data using a wavelet transform and the principal component analysis. Astronomy & Astro-physics Supplement Series, 140, 125-134, 1999.

Masson, A., F. Lefeuvre, Z. Y. Zhao, D. Lagoutte and J. L. Rauch, Observation of nonlinear interactions in large-scale density enhancements of the high-latitude ionosphere, J. Geophys. Res., 104, A10, 22,499-22,510, 1999.

Moore, T. E., R. Lundin, D. Alcayde, M. Andre, S. B. Ganguli, M. Temerin and A. Yau, Source processes in the high-latitute ionosphere, Chapter 2 in Magnetospheric Plasma Sources and Losses, Space Sci. Rev., 88, 7-84, 1999.

Muschinski, A., P. B. Chilson, S. Kern, J. Nielinger, G. Schmidt and T. Prenosil, First frequency-domain interferometry observations of large-scale vertical motion in the atmosphere, J. Atm. Sci., 56, 1248-1258, 1999.

Mäkelä, J.S., A.M. Mälkki, H.E.J. Koskinen, J.H. Clemmons, R.E. Erlandson, B. Holback and L. Eliasson, Evolution of mesoscale auroral cavities before substorm onset, J. Geophys. Res., 104, 17201-17215, 1999.

Nakamura, R., G. Haerendel, W. Baumjohann, A. Vaivads, H. Kucharek, B. Klecker, E. Georgescu, J. Birn, L. M. Kistler, T. Mukai, S. Kokubun, P. Eglitis, L. A. Frank and J. B. Sigwarth, Substorm observations in the early morning sector with Equator-S and Geotail, Ann. Geophysicae, 17, 1602-1610, 1999.

Osepian, A. P., N. V. Smirnova and S. Kirkwood, Diurnal and seasonal variations of the energy spectrum of precipitating electrons derived from electron concentration measurement data obtained by the method of incoherent scattering of radio waves, Cosmic Research, 37, No. 4, 326-333, 1999.

Palmer, R. D., T.-Y. Yu and P. B. Chilson, Range imaging using frequency diversity, Radio Sci., 34, 1485-1496, 1999.

Pellinen-Wannberg, A., A. Westman and G. Wannberg, A three-dimensional meteor head echo Doppler shift method for the EISCAT UHF radar, Meteoroids 1998 Proceedings, Astron. Inst., Slovak Acad. Sci., 83-86, 1999.

Ponomarenko, P. V., T. B. Leyser and B. Thide, New electron gyroharmonic effects in HF scatter from pump-excited magnetic field-aligned ionospheric irregularities, J. Geophys. Res., 104, 10,081-10,087, 1999.

Réchou, A., V. Barabash, P. Chilson, S. Kirkwood, T. Savitskaia and K. Stebel, Mountain wave motions determined by the Esrange MST radar, Ann. Geophysicae, 17, 957-970, 1999.

Sandahl, I., S. Barabash, H. Borg, E. Yu. Budnik, E. M. Dubinin, U. Eklund, H. Johansson, H. Koskinen, K. Lundin, R. Lundin, A. Moström, R. Pellinen, N. F. Pissarenko, T. Pulkkinen and A. V. Zakharov, First results from the hot plasma instrument PROMICS-3 on Interball-2, Ann. Geophysicae, 17, 659-673, 1999.

Sergeev, E. N., S. M. Grach, G. P. Komrakov, V. L. Frolov, P. Stubbe, B. Thide, T. B. Leyser, and T. Carozzi, Influence of small-scale irregularities on characteristics of the overshoot effect in the temporal evolution of stimulated electromagnetic emission, Part I, Development stage, Radiophys. Quantum Electron., 42, (7), 619-634, 1999.

Sergeev, E. N., V. L. Frolov, S. M. Grach, G. P. Komrakov, P. Stubbe, B. Thide, T. B. Leyser, and T. Carozzi, Influence of small-scale irregularities on characteristics of the overshoot effect in the temporal evolution of stimulated electromagnetic emission, Part II, Relaxation stage, Radiophys. Quantum Electron., 42, (8), 810-825, 1999.

Sibeck, D. G., G. Paschmann, R. A. Treumann, S. A. Fuselier, W. Lennartsson, M. Lockwood, R. Lundin, K.W. Ogilvie, T. G. Onsager, T.-D. Phan, M. Roth, M. Scholer, N. Sckopke, K. Stasiewicz and M. Yamauchi, Plasma transfer processes at the magnetopause, Chapter 5 in Magnetospheric Plasma Sources and Losses, Space Sci. Rev., 88, 207-283, 1999.

Trotignon, J.G., R. Boström, J.L. Burch, K.-H. Glassmeier, R. Lundin, O. Norberg, A. Balogh, K. Szegö, G. Musmann, A. Coates, L. Åhlén, C. Carr, A. Eriksson, W. Gibson, F. Kuhnke, K. Lundin, J.L. Michau and S. Szalai, The Rosetta Plasma Consortium: technical realization and scientific aims, Adv. Space Res. 24, 1149-1158, 1999.

Urashima, A., T. Aso, M. Ejiri, Å. Steen, U. Brändström and B. Gustavsson, Camera calibration by an integrating sphere for the auroral tomography, Adv. Polar Upper Atmos. Res., 13, 79-88, 1999.

Vassiliadis, D., D. N. Baker, H. Lundstedt, and R. C. Davidson, eds. of Special Topic “Nonlinear Methods in Space Plasma Physics, Papers Presented at the Fall 1998 Meeting of American Geophysical Union”, 6-10 December 1998, San Francisco, California, Phys. Plasmas, 6, (11), 1999.

Wintoft, P., and H. Lundstedt, A neural network study of the mapping from solar magnetic fields to the daily average solar wind velocity, J. Geophys. Res., 104, 6729-6736, 1999.

Wintoft, P., and Lj. R. Cander, Short-term predictions of foF2 using time-delay neural networks, Phys. Chem. Earth, 24, (4), 343-347, 1999.

Øieroset, M., M. Yamauchi, L. Liszka, S. P. Christon and B. Hultqvist, A statistical study of ion beams and conics from the dayside ionosphere during different phases of a substorm, J. Geophys. Res., 104, 6987-6998, 1999.

Øieroset, M., M. Yamauchi, L. Liszka, S. P. Christon and B. Hultqvist, Correction to “A statistical study of ion beams and conics from the dayside ionosphere during different phases of a substorm”, J. Geophys. Res., 104, 12,491, 1999.

Øieroset, M., M. Yamauchi, L. Liszka and B. Hultqvist, Energetic ion outflow from the dayside ionsphere: Categorization, classification, and statistical study, J. Geophys. Res., 104, 24,915-24,927, 1999.

Non-refereed papers 1999

Andersson, L., L. Eliasson and O. Norberg, Study of plasma and energetic electron environment and effects – Spacecraft anomaly forecasting using local environment data, Technical Note WP 210 ESTEC/Contract No. 11974/96/NL/JG(SC), IRF Scientific Report 262, December 1999.

Andersson, L., L. Eliasson, J. G. Wu and H. Lundstedt, Study of plasma and energetic electron environment and effects – Spacecraft anomaly forecasting using heterogenous environment data, Technical Note WP 230 ESTEC/Contract No. 11974/96/NL/JG(SC), IRF Scientific Report 264, December 1999.

Andersson, L., L. Eliasson, and P. Wintoft, Prediction of times with increased risk of internal charging on spacecraft, in Proceedings of the Workshop on Space Weather, 11-13 November 1998, ESTEC, Noordwijk, The Netherlands, WPP-155, 427-430, 1999.

Arvelius, J., H. Nilsson, S. Kirkwood, F. Danis, N. Harris and J. Pyle, CFC-measurements with Descartes during the Theseo campaign in Kiruna spring 1999 – early results, Proceedings 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, ESA SP-437, 353-358, 1999.

Arvelius, J., V. Barabash, E. Belova, P. Chilson, F. Enell, D. Hooper, S. Kirkwood, H, Nilsson, U. Raffalski and K. Stebel, MRI/IRF Atmospheric Research Programme – Research Plan for the Period 2001-2006, 1999.

Bamford, R., F. Honary, H. Tao, A. Västberg and L. Barclay, First results from a combined riometer and oblique sounder campaign in the auroral region, National Conference on Antennas and Propagation, Inst. Of Electr. Eng., Savoy Place, London, UK, IEE Conf. Publ, 461, 356-358, 1999.

Baumgarten, G., C. Keppeler, K.P. Müller, J. Siebert, K. H. Fricke, S. Kirkwood and K. Stebel, Unexpected observation of an Ice-PSC by Lidar above Esrange on March 8, 1997, Proceedings of the European Workshop on Mesoscale Processes in the Stratosphere, 7-11, 1999.

Becanovic, V., U. Eklund, S. Grahn, T. Lindblad, R. Lundin, C. Lindsey, O. Norberg, J. Waldemark and K. Waldemark, HUGIN: a small satellite trying to be intelligent, Proceedings of the Ninth Workshop on Virtual Intelligence/Dynamic Neural Networks, edited by T. Lindblad, M. L. Padgett and J. M. Kinser, SPIE 3728, 98-107, 1999.

Brändström, U., T. Leyser, Å. Steen, M. T. Rietveld, B. Gustavsson, T. Aso and M. Ejiri, ALIS observations of heater induced airglow at high latitudes, Proceedings 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, ESA SP-437, 389, 1999.

Chilson, P. B., P. Johansson, M. Johnsson, R. Moses, J. Stanojev, T. Hedquist, A. Niva and R. Scheifele, RIPAN: A remotely controlled aircraft project for troposphere/stratosphere research, Proceedings 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, ESA SP-437, 111-116, 1999.

Creola, P., A. Azcárraga, J. Breton, M. Dobrowolny, M. Giroux, B. Hultqvist, P. Jankowitsch, J. Langeland, P. Linsen, B. O. Dounell, M. Praet, H.-P. Richarz, J. Shrimplin, R. Skår and P. Tanskanen, Investment in space, a European challenge, Second Report by the Long-Term Space Policy Committee, ESA SP-2000, 1999.

Eglitis, P., H. J. Opgenoorth, F. Pitout, J. Moen, U. Lövhaug, I. W. McCrea, F. Forme, R. Fujii, S. Buchert and A. Huuskonen, Co-ordinated observations with the ESR and CUTLASS, Proceedings of the SuperDARN workshop, 29.1-29.4, 1999.

Eglitis, P., The use and understanding of SuperDARN raw data, Proceedings of the SuperDARN workshop, 59.1-59.4, 1999.

Eliasson, B., Theoretical and numerical study of non-linear interactions between electromagnetic waves and space plasma, IRF Scientific Report 250, February 1999.

Enell, C.-F., B. Gustavsson, Å. Steen, U. Brändström, P. Rydesäter, P. Johansson, T. Wagner, U. Friess and K. Pfeilsticker, Optical studies of polar stratospheric clouds, Proceedings Satellite Remote Sensing of Clouds and the Atmosphere IV, SPIE 3867, 290-297, 1999.

Enell, C.-F., Å. Steen, B. Gustavsson, U. Brändström, P. Johansson, T. Wagner, U. Friess, K. Pfeilsticker, U. Platt and K.H. Fricke, Detection of polar stratospheric clouds at Kiruna, Proceedings of the European Workshop on Mesoscale Processes in the Stratosphere, 65-68, 1999.

Enell, C.-F., Å. Steen, B. Gustavsson, U. Brändström, P. Johansson, T. Wagner, U. Freiss, K. Pfeilsticker and U. Platt, Studies of polar stratospheric clouds at Kiruna, Proceedings of the 25th Annual European Meeting on Atmospheric Studies by Optical Methods, 122-126, 1999.

Eriksson, A. I., L. Wedin, J.-E. Wahlund and B. Holback, Analysis of Freja charging events: Modelling of Freja observations by spacecraft charging codes, IRF Scientific Report 252, Swedish Institute of Space Physics, Uppsala, January 1999.

Frenning, G., Radio wave propagation and linear resonance absorption in an inhomogeneous, cold, unmagnetized plasma, Diploma Thesis, Department of Space and Plasma Physics, Uppsala University, Uppsala, Sweden, UPTEC, F99 023, April 1999.

Frenning, G., Radio wave propagation and linear resonance absorption in an inhomogeneous, cold, unmagnetised plasma, IRF Scientific Report 258, April 1999.

Fricke, K. H., K. P. Müller, M. Serwazi, J. Reichardt, S. Kirkwood, Å. Steen, P. Hoffmann, H. Mehrtens, A. Hauchecorne, F. Fierli, U. P. Hoppe and G. Hansen, Observations of dynamically induced polar stratospheric clouds in the lee of the Scandinavian mountain ridge, Proceedings of the European Workshop on Mesoscale Processes in the Stratosphere, 81-86, 1999.

Hedin, M., A. Pellinen-Wannberg, I. Häggström, L. Andersson, U. Brändstöm, B. Gustavsson, Å. Steen, A. Westman, G. Wannberg, T. van Eyken, T. Aso, C. Cattell, C. Carlsson and D. Klumpar, Trough observations with the EISCAT radars, auroral imaging system ALIS and FAST satellite, RVK-99 Proceedings, 113-117, 1999.

Hilgers, A., D. Grystad, L. Andersson, and J.-G. Wu, Prediction of meteosat anomalies based on space weather, Proceedings of the Workshop on Space Weather, 11-13 November 1998, ESTEC, Noordwijk, The Netherlands, WPP-155, 297-300, 1999.

Hooper, D., The Indian Monsoon, Swedish Human Dimensions News, 1, 7, 1999.

Hultqvist, B., Some achievements of magnetospheric physics research, in Battrick, B. and Huber, M. C. E. (eds), Space Science and the Long-Term Future of Space in Europe, Proceedings of a colloquium to celebrate Roger Bonnet’s 60th birthday, ESA SP-431, 81-102, 1999.

Karlsson, S. B. P., and N. A. Tsyganenko, The tail lobe revisited: Magnetic field modelling based on plasma data, IRF Scientific Report 260, June 1999.

Karlsson, S. B. P., and N. A. Tsyganenko, Solar wind control of the tail lobe magnetic field based on ISEE-1/2 and IMP-8 data, IRF Scientific Report 261, June 1999.

Karlsson, R., S. Wallander, J. Bergman, T. Carozzi, P. Hyvönen, S.-E. Jansson, J.-E. Wahlund, and L. Åhlén, Experimental setup and results from the outdoor REX receiver breadboard tests and their interpretation, (Pre-Phase C/D Advancement of the GPR Capabilities of the REX Instrument), ESA Contract, 13013/98/NL/RE, 1999.

Kirkwood S., Man-made versus natural climate change, Report of the Symposium at Swedish Academy of Science on 29 March 1999, Swedish Human Dimensions News, 1, 4-5, 1999.

Koskinen, H., L. Eliasson, B. Holback, L. Andersson, A. Eriksson, A. Mälkki, O. Norberg, T. Pulkkinen, A. Viljanen, J.-E. Wahlund and J.-G. Wu, Space weather and interactions with spacecraft, SPEE Final Report, FMI Report 1999:4, Finnish Meteorological Institute, Helsinki, 1999.

Leyser, T. B., P. A. Bernhardt and F. T. Djuth, Nonlinear plasma processes studied by electromagnetic HF pumping of the ionospheric F-region, Review of Radio Science 1996-1999, edited by W. R. Stone, Oxford Science Publ., 669-685, 1999.

Liszka, L., M. Øieroset and B. Hultqvist, Variability in Viking ion and electric field observa-tions detected by a wavelet filtering technique, IRF Scientific Report 257, May 1999.

Lundborg, B., A. Västberg, and P. Holm, The HF channel at high latitudes – wave propagation in the ionosphere trough region, FOA Report, 99-5622/L, 1999.

Lundstedt, H., The Swedish space weather initiatives, in Proceedings of the Workshop on Space Weather, 11-13 November 1998, ESTEC, Noordwijk, The Netherlands, WPP-155, 197-205, 1999.

Lundin, R., Space education in Sweden, ISSAT Conference October 22-23, 1998, ISSAT, 219, 1999.

Norberg, O., W. Puccio, J. Olsen, S. Barabash, L. Andersson, J. D. Winningham, U. Jonsson and M. Eriksson, Munin: A student nanosatellite for space weather information, Proceedings of the COSPAR Colloquium on Microsatellites as Research Tools, 352-364, 1999.

Ormö, J., Geological constraints and objectives for a spaceborne ground penetrating radar study of the Moon: The GPR mode of the REX proposal for LunARSat, IRF Scientific Report 255, June 1999.

Ovchinnikov, M., V. Pen’kov, O. Norberg and S. Barabash, Attitude control system for a first Swedish nanosatellite “Munin”, Proceedings of the Symposium on Small Satellites for Earth Observations, Berlin, Germany, 12-16 April, 263-267, 1999.

Pellinen-Wannberg, A., G. Wannberg and A. Westman, Leonid observations with the EISCAT incoherent scatter radars, RVK-99 Proceedings, 122-125, 1999.

Pellinen-Wannberg, A., and G. Wannberg, Meteorskur värdig millennieskiftet? Forskning & Framsteg, 7, 8-13, 1999.

Pommereau, J. P., F. Goputail, I. Pundt, J. A. Pyle, F. Danis, G. Hansford, R. Freshwater, A. Robinson, R. L. Jones, N. R. P. Harris, A. Adriani, F. Cairo, L. Pulvirenti, G. Difrancesco, S. Kirkwood, H. Nilsson, J. Arvelius, P. Woods, N. R. Swann, I. H. Howeison, S. Garcelon, T. D. Gardiner, T. Deshler and A. Buivan, Small balloons for stratospheric ozone research and satellite validation, Proceedings 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, ESA SP-437, 609-614, 1999.

Posch, M., M. Friedrich, S. Kirkwood and K. Stebel, An acoustic balloon-borne instrument to measure temperature fine structure near the tropopause, Proceedings 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, ESA SP-437, 359-362, 1999.

Reichardt, J., A. Rechou, K.-P. Muller, H. Mehrtens, F. Fierli, S. Kirkwood, A. Behrendt and C. Weitkamp, Melting of PSC particles on sunrise, Proceedings of the European Workshop on Mesoscale Processes in the Stratosphere, 223-228, 1999.

ReVelle, D. O., and L. Liszka, Thermistor measurements of temperature oscillations during the arctic summer: Potential coupling between severe convective thunderstorms and the surface Prandtl layer, IRF Scientific Report 256, May 1999.

Sandahl, I., The high- and low-latitude boundary layers in the magnetotail, in Sibeck, D. G, and K. Kudela (eds.), Interball in the ISTP Program, Studies of the Solar wind Magneto-sphere-Ionosphere Interaction, NATO Science Series C Vol 537, Dordrecht, 203-217, 1999.

Sandahl, I., B. Popielawska, E. Yu. Budnick, A. Fedorov, S. Savin, J. Safrankova and Z. Nemecek, The cusp as seen from Interball, Proceedings from Cluster II workshop, Multiscale/Multipoint Plasma Measurements, Imperial College, London, 22-24 September 1999, 39-47, 1999.

Savin, S., N. Maynard, I. Sandahl, H. Kawano, C. T. Russel, L. Zelenyi and V. Romanov, IACG boundary layer campaign: Current status and Cluster-II perspectives, Proceedings from Cluster II workshop, Multiscale/Multipoint Plasma Measurements, Imperial College, London, 22-24 September 1999, 335-338, 1999.

Stebel, K., V. Barabash, P. Chilson, S. Kirkwood and A. Réchou, Leewave observations by the MST radar ESRAD in northern Sweden, Proceedings of the European Workshop on Mesoscale Processes in the Stratosphere, 233-238, 1999.

Steen, Å., J. Englund, U. Brändström, U. Stambro, S. Hedlin, S. Kemi, L. Marcus, O. Widell and L. Sarri, KEOPS, a networked optical research facility at high latitudes, Proceedings 14th ESA Symposium on European Rocket and Balloon Programmes and Related Research, ESA SP-437, 173-178, 1999.

Steen, Å., B. Gustavsson, C.-F. Enell, U. Brändström, T. Aso and M. Ejiri, PSC dynamics investigated by multi-station imaging – techniques, results and prospects, Proceedings of the European Workshop on Mesoscale Processes in the Stratosphere, 239-242, 1999.

Steen, Å., B. Gustavsson, U. Brändström, T. Aso and M. Ejiri, OI 846.6 nm auroral imaging, Proceedings of the 25th Annual European Meeting on Atmospheric Studies by Optical Methods, 90-94, 1999.

Steen, Å., and J. Englund, KEOPS, a new optical research facility in the Kiruna region, Proceedings of the 25th Annual European Meeting on Atmospheric Studies by Optical Methods, 100-104, 1999.

Strategier för Teknikvetenskapens utveckling vid Umeå Universitet, prepared by a special working group (including S. Kirkwood) appointed by Umeå University, Chairman Ingvar Lindgren. Report published 14 May 1999.

Wahlund, J.-E., L. J. Wedin, A. I. Eriksson, B. Holback and L. Andersson, Analysis of Freja charging events: Charging events identification and case study, IRF Scientific Report 251, Swedish Institute of Space Physics, Uppsala, March 1999.

Wahlund, J.-E., L. J. Wedin, T. Carrozi, A. I. Eriksson, B. Holback, L. Andersson and H. Laakso, Analysis of Freja charging events: Statistical occurrence of charging events, IRF Scientific Report 253, Swedish Institute of Space Physics, Uppsala, February 1999.

Wallander, S., Antenna pre-amplifier design for the REX demo-instrument, Diploma Thesis, Space Engineer Program, Department of Space Physics, Umeå University, 1999.

Wu, J.-G., H. Lundstedt, L. Andersson, L. Eliasson and O. Norberg, Study of plasma and energetic electron environment and effects – Spacecraft anomaly forecasting using non-local environment data, Technical Note WP 220 ESTEC/Contract No. 11974/96/NL/JG(SC), IRF Scientific Report 263, December 1999.

Wu, J.-G., H. Lundstedt, L. Eliasson, and A. Hilgers, Analysis and prediction of space environmentally induced spacecraft anomalies, in Proceedings of the Workshop on Space Weather, 11-13 November 1998, ESTEC, Noordwijk, The Netherlands, WPP-155, 449-454, 1999.