Nielsen, E.; del Pozo, C. F.; Williams, P. J. S.: VHF coherent radar signals from the E region ionosphere and the relationship to electron drift velocity and ion acoustic velocity. Journal Geophysical Research 107 (A6), 1012 (2002)
Timofeev, E. E.; Vallinkoski, M. K.; Pollari, P.; Kangas, J.; Virdi, T.; Williams, P. J. S.; Nielsen, E.: Flow angle dependence of 1-m ionospheric plasma wave turbulence for near-threshold radar echo electric field. Journal Geophysical Research 107 (A10), 1286 (2002)
Timofeev, E. E.; Vallinkoski, M. K.; Pollari, P.; Kangas, J.; Virdi, T.; Williams, P. J. S.; Nielsen, E.: Correction to: Flow angle dependence of 1-m ionospheric plasma wave turbulence for near-threshold radar echo electric field. Journal Geophysical Research 107 (A12), 1450 (2002)
Kosch, M. J.; Nielsen, E.: Statistical average estimates of high latitude field-aligned currents from the STARE and SABRE coherent VHF radar system. Advances in Space Research 27, pp. 1239 - 1244 (2001)
Nielsen, E.: Direct experimental test of Joule heating damping of a Pc5 pulsation using the STARE radar system. Journal Geophysical Research 106, pp. 25835 - 25845 (2001)
Nielsen, E.; Honary, F.: Observations of ionospheric flows and particle precipitation following a Sudden Commencement. Annales Geophysicae 18 (8), pp. 908 - 917 (2000)
Barbin, Y.; Kofman, W.; Nielsen, E.; Hagfors, T.; Seu, R.; Picardi, G.; Svedhem, H.: The CONSERT instrument for the ROSETTA mission. Advances in Space Research 24, pp. 1115 - 1126 (1999)
Nielsen, E.; Bruns, M.; Pardowitz, I.; Perplies, H.; Bemmann, L.; Janhunen, P.; Huuskonen, A.: STARE: Observations of a field-aligned line current. Geophysical Research Letters 26, pp. 21 - 24 (1999)
Barr, R.; Stubbe, P.; Rietveld, M. T.; Nielsen, E.: Enhanced ELF wave generation efficiency using `O' mode HF heating in the ionosphere: An instrumental explanation. Geophysical Research Letters 25, p. 3489 (1998)
Kosch, M. J.; Hagfors, T.; Nielsen, E.: A new digital all-sky imager experiment for optical auroral studies in conjunction with the Scandinavian twin auroral radar experiment. Review of Scientific Instruments 69, pp. 578 - 584 (1998)
Kosch, M. J.; Scourfield, M. W. J.; Nielsen, E.: A self-consistent explanation for a plasma flow vortex associated with the brightening of an auroral arc. Journal Geophysical Research 103, pp. 29383 - 29391 (1998)
Nielsen, E.; Hagfors, T.: Plans for a new Rio-Imager experiment in Northern Scandinavia. Journal of Atmospheric and Solar-Terrestrial Physics 59, pp. 939 - 949 (1997)
Mishra, S. P.; Nielsen, E.: Response of ionospheric electric fields to variations in the interplanetary field. Annales Geophysicae 14 (8), pp. 794 - 802 (1996)
Chen, P.-R.; Yi, L.; Nielsen, E.: Variations of the mean phase velocity of 1-m ionospheric plasma waves with the plasma electron temperature. Journal Geophysical Research 100, pp. 1647 - 1652 (1995)
Elphinstone, R. D.; Hearn, D. J.; Cogger, L. L.; Murphree, J. S.; Singer, H.; Sergeev, V.; Mursula, K.; Klumpar, D. M.; Reeves, G. D.; Johnson, M.et al.; Ohtani, S.; Potemra, T. A.; Sandahl, I.; Nielsen, E.; Persson, M.; Opgenoorth, H.; Newell, P. T.; Feldstein, Y. I.: Observations in the vicinity of substorm onset: Implications for the substorm process. Journal Geophysical Research 100, pp. 7937 - 7969 (1995)
Greenwald, R. A.; Baker, K. B.; Dudeney, J. R.; Pinnock, M.; Jones, T. B.; Thomas, E. C.; Villain, J.-P.; Cerisier, J.-C.; Senior, C.; Hanuise, C.et al.; Hunsucker, R. D.; Sofko, G.; Koehler, J.; Nielsen, E.; Pellinen, R.; Walker, A. D. M.; Saot, N.; Yamagishi, H.: DARN/SUPERDARN: A global view of the dynamics of high-latitude convection. Space Science Reviews 71, pp. 761 - 796 (1995)
Kosch, M. J.; Nielsen, E.: Coherent radar estimates of average high-latitude ionospheric Joule heating. Journal Geophysical Research 100, pp. 12201 - 12215 (1995)
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).
The MPS instruments on board ESA’s JUICE spacecraft have successfully completed their commissioning in space - and delivered their first observational data.
A collision nearly 30 years ago permanently changed Jupiter's atmospheric chemistry; the aftermath is still helping to better understand the gas giant.
The launch was successful; the ESA’s space probe JUICE is now on its way to the Jupiter system. There, it will primarily study the gas giant's icy moons.
ESA's space probe is on the move: First it heads for the launch site in Kourou - and in April it will begin its long journey to Jupiter and its icy moons.