Röttger, J.; Liu, C. H.; Pan, C. J.: On the various advantages of the MST radar spaced antenna method. In: Solar-Terrestrial Energy Program, Proc. 5th Workshop on Technical and Scientific Aspects of MST Radar, Aberystwyth, United Kingdom, S. 291 - 296 (Hg. Edwards, B.). SCOSTEP, Secret. Univ. of Illinois, Urbana, III./USA (1992)
Röttger, J.; Pan, C. J.; Liu, C. H.; Su, S. Y.: Parameters of the wind field and reflectivity variations observed with the Chung-Li VHF radar during a Typhoon passage. In: Solar-Terrestrial Energy Program, Proc. 5th Workshop on Technical and Scientific Aspects of MST Radar, Aberystwyth, United Kingdom, S. 33 - 38 (Hg. Edwards, B.). SCOSTEP, Secret. Univ. of Illinois, Urbana, III./USA (1992)
Larsen, M. F.; Fukao, S.; Palmer, R. D.; Röttger, J.; Yamamoto, M.; Tsuda, T.; Kato, S.: Changes in effective beam-pointing direction produced by turbulence structure within the radar beam and techniques for correcting vertical velocity measurements. In: 25th International Conference on Radar Meteorology, S. 257 - 260. American Meteorological Society, Boston, USA (1991)
Röttger, J.: Plans for the EISCAT Svalbard Radar. In: Proc. of an International Workshop on Cluster Dayside Polar Cusp, Longyearbyen, Svalbard, Norway, S. 77 - 80. ESA Publ. Div., Noordwijk (1991)
Röttger, J.; Björnå, N.; Hultqvist, B.; Kofman, W.; Schlegel, K.; Turunen, T.; Willis, D. M.: Plans for an EISCAT polar cap radar. In: Proc. of a meeting of the Nordic Society for Space Research (NSSR) at Bolkesjö Hotel, Norway, S. 133 - 138. Norwegian Space Centre, Oslo, Norway (1991)
Röttger, J.; Liu, C. H.; Pan, C. J.; Franke, S. J.: New techniques in the application of the spaced antenna method for VHF radar wind profilers. In: 25th International Conference on Radar Meteorology, S. 245 - 248. American Meteorological Society, Boston, USA (1991)
Röttger, J.; Pan, C. J.; Liu, C. H.; Su, S. Y.: Wind field and reflectivity variations investigated with the Chung-Li VHF radar during typhoon passage. In: Proc. International Conference on Mesoscale Meteorology and TAMEX, S. 373 - 379. Meteorological Society of the Republic of China, Taiwan and American Meteorological Society, Boston, USA (1991)
Williams, P. J. S.; van Eyken, A. P.; Hall, C.; Röttger, J.: Polar mesosphere summer echoes and associated atmospheric gravity waves. In: Proc. Ninth ESA/PAC Symposium on European Rocket and Balloon Programmes and Related Research, Lahnstein, Germany, S. 187 - 191. ESA Publ. Div., Noordwijk (1989)
Röttger, J.: Contribution of radar observation of winds, waves, tuburlence and composition to study transport processes in the middle atmosphere. In: Proc. of the NATO Advanced Research Workshop on Transport Processes in the Middle Atmosphere, Erice, Sicily/Italy 1986, S. 439 - 457 (Hg. Visconti, G.; Garcia, R.). D. Reidel Publ. Comp., Dordrecht, The Netherlands (1987)
Hall, C.; Blix, T. A.; Brekke, A.; Friedrich, M.; Hansen, T.; Kirkwood, S.; Röttger, J.; Thrane, E.: MAP/WINE electron density profiles in the D- and E-regions: A comparison of EISCAT, PRE and rocket data. In: Proc. 7th ESA Symposium on European Rocket & Balloon Programmes and Related Research, S. 279 - 284. ESA Publ. Div., Noordwijk (1985)
Larsen, M. F.; Röttger, J.: Observations of frontal zone structures with a VHF Doppler radar and radiosondes. In: 22nd Conference on Radar Meteorology, S. 489 - 494. Amer. Meteor. Soc., Boston, Mass., USA (1984)
Röttger, J.: The potential of VHF radars for meteorological applications. In: Medlemsblad för Svenska Meteorologiska Sällskapet, S. 6 - 11. SMHI, Norrköping, Sweden (1984)
Röttger, J.; Larsen, M. F.: Potential advantages of the spaced antenna method for operational wind profiling. In: Workshop on Very Short-Range Forecasting Systems Research Aspects, 1983, S. 97 - 102. World Meteor. Organization, Geneva, Switzerland (1984)
Baron, M.; Röttger, J.: The potential use of the EISCAT and Sondrestromfjord radars in support of rocket and balloon measurements. In: Proc. 6th ESA Symposium on European Rocket and Balloon Programmes and Related Research, Interlaken, Switzerland, S. 299 - 306. ESA Publ. Div., Noordwijk (1983)
Röttger, J.: The use of the EISCAT radar facility for middle atmosphere research. In: 6th ESA Symposium on European Rocket and Ballon Programmes and Related Research, Interlaken, Switzerland, 11-15 April 1983, S. 287 - 294. ESA Publ. Div., Noordwijk (1983)
Röttger, J.: The correlation of winds measured with a spaced antenna VHF radar and radiosondes. In: Proc. 21st Conference on Radar Meteorology, S. 97 - 99. Amer. Meteor. Soc., Boston, Mass./USA (1983)
Röttger, J.: Some capabilities of the EISCAT UHF radar for investigations of the stratosphere. In: Proc. 21st Conference on Radar Meteorology, S. 100 - 103. Amer. Meteor. Soc., Boston, Mass./USA (1983)
Röttger, J.: The dynamics of stratospheric and mesospheric fine structure investigated with an MST VHF radar. In: Middle Atmospere Program. Handbook for MAP, 2 extended abstracts from International Symposium on Middle Atmosphere Dynamics and Transport, July 28-August 1, 1980, S. 341 - 350 (Hg. Avery, S. K.). Univ. of Illinois, Urbana, III./USA (1981)
Röttger, J.: The capabilities of VHF radars for meteorological observations, Nowcasting: Mesoscale Observations and Short-Range Prediction. In: Proc. of an International Symposium, 25-28 August 1981, Hamburg, Germany (part of the IAMAP Third Scientific Assembly), S. 143 - 148. ESA Publ. Div., Noordwijk (1981)
Sichtung von Bewerbungen an mehreren Terminen pro Jahr. Promotionsprojekte in Planetenwissenschaften, Sonnensytemforschung, Kosmochemie, Exoplaneten, Sonnenphysik, stellare Astrophysik, Magnetfelder der Sonne, Helioseismologie, Asteroseismologie ...
Als erste Raumsonde schaut Solar Orbiter auf die Pole der Sonne – und findet das Magnetfeld dort im Ausnahmezustand. Aktuell polt sich das Magnetfeld der Sonne um.
First Light! Das Spektro-Polarimeter des weltweit größten Sonnenteleskops auf Hawaii schaut erstmals auf die Sonne. Das Instrument wurde in Deutschland entwickelt.
Wenige Monate nach Inbetriebnahme hat die Raumsonde einen Strahlungsausbruch auf der Sonne beobachtet – und in eine kaum erforschte Schicht unseres Sterns geschaut.
Dr. Theodosios Chatzistergos blickt in die Vergangenheit unseres Sterns und wertet historische Sonnenbeobachtungen aus. Nun erhält er eine wichtige Auszeichnung.
Wie Fotos von der Landestelle zeigen, hat Sunrise III seinen Forschungsflug in der Stratosphäre gut überstanden. Erste Messdaten sehen vielversprechend aus.