Tieteellinen aikakauslehti

Boella, G.; Gervasi, M.; Mariani, S.; Rancoita, P. G. & Usoskin, Ilya (2001) Evidence for charge drift modulation at intermediate solar activity from the flux variation of protons and alpha particles. - Journal of Geophysical Research 106 (A12), 29355-29362

Czuba, W.; Grad, M.; Luosto, U.; Motuza, G.; Nasedkin, V.; POLONAISE P5 Working Group & Yliniemi, Jukka (2001) Crustal structure of the East European Craton along the POLONAISE '97 P5 profile. - Acta Geophysica Polonica 49 (2), 145-168

Danielides, Michael; Shalimov, S. & Kangas, Jorma (2001) Estimates of the field-aligned current density in current-carrying filaments using auroral zone ground-based observations. - Annales Geophysicae 19, 699-706

EUROBRIDGE'95 seismic working group; Yliniemi, Jukka & Komminaho, Kari (2001) EUROBRIDGE'95: deep seismic profiling within the East European Craton. - Tectonophysics. Special issue. EUROBRIDGE: Palaeoproterozoic accretion of Fennoscandia and Sarmatia 339 (1-2), 153-175. www.elsevier.com/locate/tecto

Guglielmi, A.; Kangas, Jorma & Potapov, A. (2001) Quasiperiodic modulation of the Pc1 geomagnetic pulsations: An unsettled problem. - Journal of Geophysical Research 106 (A11), 25847-25855

Guterch, A.; Grad, M.; Keller, G. R.; CELEBRATION Organizing Committee and Experiment Team & Yliniemi, Jukka (2001) Seismologists celebrate the new millennium with an experiment in Central Europe. - EOS, Transactions, AGU 82 (45), 529, 534-535

Hargreaves, J. K.; Ranta, Aarne; Annan, J. D. & Hargreaves, J. C. (2001) Temporal fine structure of nighttime spike events in auroral radio absorption, studied by a wavelet method. - Journal of Geophysical Research 106 (A11), 24621-24636

Kangas, Jorma; Kultima, Johannes; Guglielmi, A.; Potapov, A. and Hayashi, K. (2001) Impact of interplanetary shock on the ULF wave activity: A case study of the storm sudden commencement on 22 September 1999. - Earth, Planets and Space 53, 1177-1182

Kerttula, Raine; Mursula, Kalevi; Pikkarainen, Tapani & Kangas, Jorma (2001) Storm-time Pc1 activity at high and middle latitudes. - Journal of Geophysical Research 106 (A4), 6213-6227

Kerttula, Raine; Mursula, Kalevi; Pikkarainen, Tapani & Kangas, Jorma (2001) Effect of magnetic storm intensity on Pc1 activity at high and mid-latitudes. - Journal of Atmospheric and Solar-Terrestrial Physics 63, 503-511

Kozlovskaya, Elena; Karatayev, G. I. & Yliniemi, Jukka (2001) Lithosphere structure along the northern part of EUROBRIDGE in Lithuania; results from integrated interpretation of DSS and gravity data. - Tectonophysics. Special Issue. EUROBRIDGE: Palaeoproterozoic accretion of Fennoscandia and Sarmatia 339 (1-2), 177-191. www.elsevier.com/locate/tecto

Kozlovsky, Alexander & Kangas, Jorma (2001) Characteristics of the postnoon auroras inferred from EISCAT radar measurements. - Journal of Geophysical Research 106 (A2), 1817-1834

Kozlovsky, Alexander; Lakkala, Timo; Kangas, Jorma & Aikio, Anita (2001) Response of the quiet auroral arc motion to ionospheric convection variations. - Journal of Geophysical Research 106 (A10), 21463-21473

Mursula, Kalevi; Usoskin, Ilya & Kovaltsov, G. A. (2001) Persistent 22-year cycle in sunspot activity: Evidence for a relic solar magnetic field. - Solar Physics 198, 51-56

Prikner, K.; Mursula, Kalevi; Kangas, Jorma & Feygin, F. Z. (2001) Ionospheric Alfven resonator control over the frequency variable Pc 1 event in Finland on May 14, 1977. - Studia geophysica et geodætica 45 (4), 363-381

Sucksdorff, C.; Bösinger, Tilmann; Kangas, Jorma; Mursula, Kalevi; Nygrén, Tuomo; Kauristie, K. & Koskinen, H. (2001) Space physics. - Geophysica 37 (1-2), 309-355

SVEKALAPKO Seismic Tomography Working Group; Bock, G.; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero; Tiikkainen, Juha & Yliniemi, Jukka (2001) Seismic probing of Fennoscandian lithosphere. - EOS, Transactions 82 (50), 621, 628-629

Usoskin, Ilya; Bobik, P.; Gladysheva, O. G.; Kananen, Hannu; Kovaltsov, G. A. & Kudela, K. (2001) Sensitivity of a neutron monitor to galactic cosmic rays. - Advances in Space Research 27 (3), 565-569

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Was one sunspot cycle lost in late XVIII century. - Astronomy & Astrophysics 370, L31-L34

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Heliospheric modulation of cosmic rays and solar activity during the Maunder minium. - Journal of Geophysical Research 106 (A8), 16039-16046

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Simulation of sunspot activity during active Sun and great minima using regular, random and relic fields. - Solar Physics 199, 187-199

Usoskin, Ilya; Mursula, Kalevi; Kananen, Hannu & Kovaltsov, G. A. (2001) Dependence of cosmic rays on solar activity for odd and even solar cycles. - Advances in Space Research 27 (3), 571-576

Vilenius, E.; Nygrén, Tuomo; Lehtinen, Markku; Markkanen, Markku & Väänänen, Antero (2001) Ionospheric tomography. - Photogrammetric Journal of Finland 17 (2), 78-91

Konferenssijulkaisu

Aaltonen, V.; Paatero, J.; Hatakka, J.; Usoskin, Ilya & Pöllänen, R. (2001) Kosminen säteily ja pintailman 7 Be-pitoisuus Suomessa vuosina 1983-1999. (Abstrakti (Ei KOTAan)). - Proceedings of the Annual Conference of the Geophysical Society ofFinland, Helsinki, May 2001, Oy EDITA Ab, Helsinki 2001 (in Finnish). 13-18

Alanko, Katja; Mursula, Kalevi & Usoskin, Ilya (2001) Heliospheric modulation of galactic cosmic rays: Numerical simulation. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 253

Alinaghi, A.; Bock, G.; Kind, R.; TOR Working Group & SVEKALAPKO Seismic Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) Receiver function images of crust and upper mantle: evidence for deep-seated differences between Precambrian and Palaeozoic provinces in northern Europe. (Abstrakti (Ei KOTAan)). - EUROPROBE, Precambrian Time-Slice Symposium, November 1-3, 2001, VSEGEI, St. Petersburg, Russia. Abstracts. Ed. J. S. Daly & S. Bogdanova. 3

Alinaghi, A; Bock, G.; Kind, R.; TOR Working Group & the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) Receiver function images of crust and upper mantle: Evidence for deep-seated differences between Procambrian and Paleozoic Provinces in northern Europe. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Ed. by S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 2

Belikovich; V. V.: Bakhmet'eva, N. V.; Tolmacheva, A. V.; Rietveld, M. T. & Turunen, Esa (2001) Artificial periodic inhomogeneities (API) technique to study of the mesosphere and the lower thermosphere: outlook for joint research using EISCAT and SURA heating facilities. (Abstrakti (Ei KOTAan)). - 10th International EISCAT Workshop, 23. -27. July 2001 Tokyo, Japan. 42

Bobik, P.; Kudela, K. & Usoskin, Ilya (2001) Geomagnetic cutoff Penumbra structure: Approach by transmissivity function. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow & M. Scholer, Copernicus. 4056-4059

Bodganova S.; EUROBRIDGE Working Group & Yliniemi, Jukka (2001) Major crustal/lithospheric boundaries in the western part of the East European craton as seen from geology and the EUROBRIDGE seismic experiment. (Abstrakti (Ei KOTAan)). - EUG XI Meeting (European Union of Geosciences), 8 th-12 th April 2001, Strasbourg, France. 365

Bogdanova Svetlana; EUROBRIDGE Working Group & Yliniemi, Jukka (2001) Major geological and geophysical records of palaeoproterozoic accretionary tectonics in the western part of the East European Craton. (Abstrakti (Ei KOTAan)). - EUROPROBE Precambrian Time-Slice Symposium " Archaean and Proterozoic Plate Tectonics: Geologicval and Geophysical Records", November 1-3, 2001, VSEGEI, St. Petersburg, Russia

Bösinger, Tilmann; Hussey, G.; Haldoupis, Ch. & Kozlovsky, Alexander (2001) What can we learn from EISCAT CP1-data statistics. (Abstrakti (Ei KOTAan)). - 24th Annual Seminar "Physics of Auroral Phenomena", Apatity, 27 Feb-2 March 2001. Preprint PGI 01-01-109, Polar Geophysical Institute. 63

CELEBRATION Organizing Committee and Experiment Team & Yliniemi, Jukka (2001) CELEBRATION seismic experiment in Central Europe. (Abstrakti (Ei KOTAan)). - XX Geofysiikan päivät, Helsingissä 15-16.5.2001. Toim. M-L. Airo & S. Mertanen. 263

CELEBRATION 2000 Working Group; Grad, M. & Yliniemi, Jukka (2001) Trans-Carpathian seismic profile from Precambrian Platform to Pannonian Basin (preliminary results). (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

CELEBRATION 2000 Working Group; Guterch, A. & Yliniemi, Jukka (2001) CELEBRATION 2000 - Central European lithospheric experiment based on refraction. (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

CELEBRATION 2000 Working Group; Hegedus, E. & Yliniemi, Jukka (2001) Crustal structure of the Pannonian Basin (preliminary results). (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

CELEBRATION 2000 Working Group; Hrubcova, P. & Yliniemi, Jukka (2001) Crustal structure of the Bohemian Massif and Eastern Alps (preliminary results). (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

Damtie, Baylie; Nygrén, Tuomo; Lehtinen, Markku & Huuskonen, A. (2001) Application of mathematical inversion in the analysis of range-ambiguous incoherent scatter signals. (Abstrakti (Ei KOTAan)). - Abstracts of the 10th International EISCAT Workshop, Tokyo, Japan, July 23-27, 2001. 48

Danielides, Michael & Kozlovsky, Alexander (2001) Auroral vortex structures as a result of disturbed geomagnetic conditions. (Artikkeli tieteellisessä konferenssijulkaisussa). - The Outer Heliosphere: The Next Frontiers. Proceedings of COSPAR Colloquium, Potsdam, Germany, 24-28 July 2000. Eds. K. Scherer et al. Cospar Colloquia Series, Pergamon . 503-506

Danielides, Michael; Shalimov, S. & Kangas, Jorma (2001) Cosmic radio noise absorption associated with north-south aurora. (Abstrakti (Ei KOTAan)). - 28th Annual European Meeting on Atmospheric Studies by Optical Methods, Aug 19-24 2001, Oulu, Finland. Eds. J. Jussila and H. Holma. 13

Danielides, Michael; Shalimov, S. & Kangas, Jorma (2001) Field-aligned current impulses and Pi1 noise bursts in the high latitudes. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 91

Elo, Anne-Marie; Jämsén, T.; Kangas, Jorma; Mursula, Kalevi; Peltoniemi, J.; Usoskin, Ilya & Vallinkoski, M. (2001) Test results and future plans of the MUG experiment on cosmic-ray muons in the Pyhäsalmi mine. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 254

Elo, Anne-Marie; Jämsén, T.; Kangas, Jorma; Mursula, Kalevi; Peltoniemi, J.; Usoskin, Ilya; Vallinkoski, M. & Valtonen, E. (2001) MUG experiment for observing muon fluxes underground: Test data and development plans. (Abstrakti (Ei KOTAan)). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow and M. Scholer, Coperninus. 1249

EUROBRIDGE Seismic Working Group & Jukka, Yliniemi (2001) EUROBRIDGE'97. S-wave velocity model and VP/VS ratio distribution along EB'97 seismic profile. (Abstrakti (Ei KOTAan)). - EUROPROBE Precambrian Time-Slice Symposium " Archaean and Proterozoic Plate Tectonics: Geologicval and Geophysical Records", November 1-3, 2001, VSEGEI, St. Petersburg, Russia. 21

EUROBRIDGE Seismic Working Group, & Yliniemi, Jukka (2001) DSS EUROBRIDGE'94-97: Lithospheric structure of the western part of the East European Crarton . (Abstrakti (Ei KOTAan)). - XX Geofysiikan päivät, Helsingissä 15-16.5.2001. Toim. M-L. Airo & S. Mertanen. 265

EUROBRIDGE Seismic Working Group; Janik, T. & Yliniemi,Jukka (2001) EUROBRIDGE'97: Vp/Vs ratio distribution along EB'97 seismic profile. (Abstrakti (Ei KOTAan)). - XXVI General Assembly of the European Geophysical Society, Nice, 25-30 March 2001, Abstracts

EUROBRIDGE'97 and DOBRE'99 Working Group; Janik, T. & Yliniemi, Jukka (2001) Results of EUROBRIDGE and DOBRE seismic experiments. (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

Gladysheva, O. G.; Dmitriev, P. B.; Usoskin, Ilya; Barkov, N. I.; Ekaykin, A. A. & Nikarov, V. V. (2001) Nitrate abundance in polar snow during last 50 year: connection to atmospheric ionization. (Abstrakti (Ei KOTAan)). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow and M. Scholer, Copernicus. 4191

Gladysheva, O. G.; Kocharov, G. E.; Kovaltsov, G. A. & Usoskin, Ilya (2001) Cosmogenic variations of nitrate abundance in polar ice. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow & M. Scholer, Copernicus . 172-175

Gladysheva, O. G.; Kocharov, G. E.; Kovaltsov, G. A. & Usoskin, Ilya (2001) Nitrate abundance in polar ice during the great solar activity minimum. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 6988. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Gladysheva, O. G.; Kovaltsov, G. A.; Usoskin, Ilya & al. (2001) Nitrate abundance in Antarctic snow during last 50 years: Connection to atmospheric ionisation. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 6989. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Guterch, A.; Grad, M.; Keller, G. R.; Posgay, K.; Vozar, J.; Spicak, A.; Bruecckl, E.; Hajnal, Z..; Thybo, H.; Selvi, O.; Working Group & Yliniemi, Jukka (2001) CELEBRATION 2000: An international seismic experiment crossing the Main geological units in Central Europe. (Abstrakti (Ei KOTAan)). - EUG XI Meeting (European Union of Geosciences), 8 th - 12 th April 2001, Strasbourg, France. 336

Guterch, A.; Grad, M.; Keller, G. R.; Posgay, K.; Vozar, J., Spicak, A.; Brueckl, E.; Hajnal, Z.; Thybo, H.; Selvi, O. & Yliniemi, Jukka (2001) Lithospheric structure in central Europe revealed by the CELEBRATION 2000 Seismic Experiment. (Abstrakti (Ei KOTAan)). - American Geophysical Union, Fall Meeting, December 10-14, 2001, San Francisco, California, USA, EOS, Transactions American Geophysical Union, vol. 82, No 47

Guterch, A.; Grad, M.; Keller, G. R.; Posgay, K.; Vozar, J.; Spicak, A.; Brueckl, E.; Hajnal, Z.; Thybo, H.; Selvi, O.; CELEBRATION 2000 Working Group & Yliniemi, Jukka (2001) CELEBRATION 2000 seismic experiment in Central Europe. (Abstrakti (Ei KOTAan)). - EUROPROBE Neoproterozoic - Early Palaeozoic Time Slice Symposium, Ankara, Orogeny and Cratonic Response on the Margins of Baltica, ESF EUROPROBE Meeting, 30.09 - 2.10.2001, Middle East Technical University, Ankara - Turkey, Abstract Book

Guterch, A.; Grad, M.; Keller, G. R.; Posgay, K.; Vozar, J.; Spicak, A.; Brueckl, E.; Hajnal, Z.; Thybo, H.; Selvi, O.; Working Group & Yliniemi, Jukka (2001) First results of the CELEBRATION 2000 seismic experiment in Central Europe . (Abstrakti (Ei KOTAan)). - The Stephan Mueller Topical Conference of the European Geophysical Society, Quantitative Neotectonics and Seismic Hazard Assessment: New Integrated Approaches for Environmental Management, Balatonfüred, Hungary, 22-26.09.2001, Abstract Book

Guterch, A.; Grad, M.; Keller, G.R.; Posgay, K.; Vozar, J.; Spicak, A.; Brueckl, E.; Hajnal, Z.; Thyb, H.; Selvi, O.; CELEBRATION Working Group & Yliniemi, Jukka (2001) Central European lithospheric experiment based on refraction 2000. (Abstrakti (Ei KOTAan)). - XXVI General Assembly of the European Geophysical Society, Nice, 25-30 March 2001, Abstracts

Guterch, A.; POLONAISE'97 Working Group & Yliniemi, Jukka (2001) Deep crustal structure of the central part of the Trans European Suture Zone based on the POLONAISE'97 and other seismic experiments. (Abstrakti (Ei KOTAan)). - Proof integration, XXVI General Assembly of the European Geophysical Society, Nice, 25-30 March 2001, Abstracts

Hyvönen, T.; Korja, A.; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero; Yliniemi, Jukka & SVEKALAPKO Seismic Tomography Working Group (2001) SVEKALAPKO:n tomografinen koe 1998-1999. (Artikkeli tieteellisessä konferenssijulkaisussa). - XX Geofysiikan päivät, 15.-16.5.2001, Helsinki. Toim. M-L. Airo & S. Mertanen. Helsinki, Geofysiikan Seura. 51-56

Jämsén, T.; Elo, Anne-Marie; Kangas, Jorma; Mursula, Kalevi; Peltoniemi, J.; Usoskin, Ilya; Vallinkoski, M. & Valtonen, E. (2001) New multilevel experiment MUG for observing muon fluxes underground. (Abstrakti (Ei KOTAan)). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow and M. Scholer, Coperninus. 1250

Karinen, Arto; Mursula, Kalevi; Takalo, Jouni & Ulich, Thomas (2001) Erroneous Dst index in 1971. (Abstrakti (Ei KOTAan)). - SOLSPA 2001 Euroconference "Solar Cycle and Space Weather", Vico Equence, Italy, September 24-29, 2001. 52

Kleimenova, N. G.; Kozyreva, O. V.; Schott, J-J.; Manninen, Jyrki & Ivaniva, P. (2001) High latitude Pc4 as an response to the magnetic cloud impact. (Abstrakti (Ei KOTAan)). - IAGA-Iaspei 19-31 August, 2001, Hanoi, Vietnam

Korsman, K.; Korja, Toivo; Pajunen, M.; Virransalo, P. & the GGT/SVEKA Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Tuisku, Pekka & Yliniemi, Jukka (2001) GGT/SVEKA transect. (Abstrakti (Ei KOTAan)). - EUROPROBE Precambrian Time-Slice Symposium, Abstracts of a joint meeting of the EUROBRIDGE and SVEKALAPKO projects, 1-3, November, 2001, VSEGEI, St. Petersburg, Russia. Ed. by J. S. Daly & S. Bogdanova. 29-31

Kouba, D.; Plomerova, J.; Vecsey, L. & SVEKALAPKO SeismicTomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) Anisotropy of Proterozoic and Archaic mantle lithosphere of eastern Fennoscandia - preliminary measurements of shear-wave parameters from records of SVEKALAPKO field experiment. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Ed. by S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 33

Kozlovskaya, Elena; Yliniemi, Jukka & EUROBRIDGE Seismic Working Group; Komminaho, Kari (2001) Integrated density-velocity modeling along EUROBRIDGE'95-97 DSS profiles: main results. (Abstrakti (Ei KOTAan)). - XX Geofysiikan päivät. Toim. M-L. Airo & S. Mertanen, Geofysiikan Seura. 73

Kozlovskaya, Elena; Yliniemi, Jukka & EUROBRIDGE Seismic Working Group; Komminaho, Kari (2001) Joint interpretation of seismic and gravity data with the use of ralationship between density Vp and Vs. (Abstrakti (Ei KOTAan)). - 26th General Assembly of the European Geophysical Society, 25-30 March, Nice, France. Geophysical Research Abstracts. Ed. by A. K. Richter. Geophysical Research Abstracts, European Geophysical Society

Kozlovskaya, Elena; Yliniemi, Jukka & Karatayev, G. & EUROBRIDGE Seismic Working Group; Komminaho, Kari (2001) Integrated density-velocity modelling along EUROBRIDGE'95-97 wide-angle reflection and refraction profiles: main results. (Abstrakti (Ei KOTAan)). - EUROPROBE, Precambrian Time-Slice Symposium, November 1-3, 2001, VSEGEI, St. Petersburg, Russia. Abstracts. Ed. by J. S. Daly & S. Bogdanova. 32

Kozlovskaya, Elena; Yliniemi, Jukka, Karatayev, G. & Seismic Working Group: Komminaho, Kari (2001) Integrated density-velocity modeling along EUROBRIDGE'95-97 wide-angle reflection and refraction profiles: main results. (Abstrakti (Ei KOTAan)). - EUG XI European Union of Geosciences, 8 April - 12 April 2001, Strasbourg, France. Journal of Conference, Abstracts (CD-ROM), Cambridge. 365. www.campublic.co.uk/science/publications/JConfAbs/6/

Kozlovsky, Alexander (2001) Characteristics of the noon poleward moving auroral arcs inferred from EISCAT radar measurements. (Abstrakti (Ei KOTAan)). - 28th Annual European Meeting on Atmospheric Studies by Optical Methods, Aug 19-24 2001, Oulu, Finland. Eds. J. Jussila and H. Holma. 11

Laine, U. K.; Turunen, Esa, Manninen, Jyrki & Nevanlinna, H. (2001) Revontuliäänet, havaintoja ja mittauksia. (Abstrakti (Ei KOTAan)). - XX Geofysiikan Päivät Helsingissä 15-16.05.2001. 101-106

Laine, U. K.; Turunen, Esa; Manninen, Jyrki & Nevanlinna, H. (2001) Auroral sounds, observations and measurements. (Abstrakti (Ei KOTAan)). - 28th Annual European Meeting On Atmospheric Studies By Optical Methods, August 19th - 24th, 2001 Oulu, Finland, Space Physics Group of University of Oulu. 15

Lehtinen, Markku (2001) Scanning space debris with EISCAT radars . (Abstrakti (Ei KOTAan)). - Geophysical research abstracts, Volume 3, 2001, 26th General Assembly of the EGS, Nice, France, 25-30 March, 2001

Lehtinen, Markku & Markkanen, Jussi (2001) Observations of space debris. (Abstrakti (Ei KOTAan)). - 1Oth international EISCAT workshop, Tokyo, Japan, 23-27 July 2001. 61

Lehtinen, Markku; Markkanen, Jussi; Väänänen, A.; Huuskonen, A.; Damtie, Baylie; Nygrén, Tuomo & Rahkola, J. (2001) New technique un incoherent scatter experiments. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 100

Lehtinen, Markku; Markkanen, Jussi; Väänänen, A.; Huuskonen, A.; Damtie, Baylie; Nygrén, Tuomo & Rahkola, J. (2001) New incoherent scatter technique in the EISCAT Svalbard radar . (Abstrakti (Ei KOTAan)). - Abstracts of the 10th International EISCAT Workshop, Tokyo, Japan, July 23-27, 2001. 51

Lehtinen, Markku S.; Markkanen, Jussi; Väänänen, Antero & Huuskonen, A. (2001) Using EISCAT radars for space debris detection. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings of the Third European Conference on Space Debris,19-21 March 2001, ESOC, Darmastadt, Germany. ESA SP 473. Noordwijk, the Netherlands, ESA Publications Division, ESTEC. 67-71

Lehtinen, Markku; Väänänen, Antero; Vertanen, O.; Trakhachev, V. N.; Khudukon, B. Z. & Nygren, Tuomo (2001) New receiver system an tomographic chain in Scandinavia. (Abstrakti (Ei KOTAan)). - International Beacon Satellite Symposium 2001 Proceedings, Boston, June 3-6, 2001

Mursula, Kalevi; Asikainen, T. & Usoskin, Ilya (2001) Additional evidence for the relic magnetic field in the Sun. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 6051. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Mursula, Kalevi; Usoskin, Ilya & Kovaltsov, G. A. (2001) Long-term cosmic ray intensity vs. solar proxies: A simple linear relation does not work. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow & M. Scholer, Copernicus. 3838-3841

Oikarinen, Antti; Manninen, Jyrki; Väänänen, Antero; Kultima, Johannes & Turunen, T. (2001) Mapping the ionosphere using VLF heating experiments. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 89

Oikarinen, Antti; Manninen, Jyrki; Väänänen, Antero; Turunen, T. & Kultima, Johannes (2001) Phases of the harmonics of the heating generated VLF waves produced by amplitude modulation and beam swinging. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 5875. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Pavlenkova, N. I.; Luosto, U.; Yliniemi, Jukka & Ansorge, J. (2001) 3-D P-velocity model of the crust in the Baltic Shield. (Abstrakti (Ei KOTAan)). - SVEKALAPKO An EUROPROBE project, 6th Workshop Lammi, Finland, 29.11-2.12.2001. University of Oulu, Department of Geophysics, Report N:o 24. 43

Plomerova, J.; Kouba, D.; Hyvönen, T.; Sandoval, S.; Babucka, V. & the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita,Tero & Yliniemi, Jukka (2001) Seismic anisotropy beneath SVEKALAPKO - status report. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Ed. by S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 45-47

POLONAISE Working Group; Grad, M. & Yliniemi, Jukka (2001) Results of the POLONAISE'97 Experiment - crustal structure of the transition from Precambrian to Variscan Europe. (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

POLONAISE Working Group; Grad, M. & Yliniemi, Jukka (2001) Crustal structure of the Palaeozoic and Precambrian Platforms; POLONAISE'97 profiles P1, P3 and P4. (Abstrakti (Ei KOTAan)). - EUG XI Meeting (European Union of Geosciences), 8 th-12 th April 2001, Strasbourg, France.. 366

POLONAISE Working Group; Grad, M. & Yliniemi, Jukka (2001) Structure of the lower lithosphere in Central Europe. (Abstrakti (Ei KOTAan)). - 12th Meeting of the Association of European Geological Societies MAEGS 2001, Kraków, Poland, 8-15 September, 2001, Carpatians, Palaeogeography and Geodynamics: A Multidiciplinary Approach. Biuletyn PIG, Nr 396

POLONAISE Working Group; Guterch, A. & Yliniemi, Jukka (2001) Seismic structure of the lithosphere in the central part of the Trans-European Suture Zone in Poland: Summary of results of the POLONAISE'97 experiment. (Abstrakti (Ei KOTAan)). - EUROPROBE Neoproterozoic - Early Palaeozoic Time Slice Symposium, Ankara, Orogeny and Cratonic Response on the Margins of Baltica, ESF EUROPROBE Meeting, 30.09 - 2.10.2001, Middle East Technical University, Ankara - Turkey, Abstract Book

POLONAISE Working Group; Keller, G. R. & Yliniemi,Jukka (2001) POLONAISE'97 - lithospheric structure of the TESZ and palaeozoic and precambrian platforms (profile P4). (Abstrakti (Ei KOTAan)). - XXVI General Assembly of the European Geophysical Society, Nice, 25-30 March 2001, Abstracts

POLONAISE'97; CELEBRATION 2000 Working Group; Guterch, A.; Grad, M. & Yliniemi, Jukka (2001) New deep seismic studies of the lirhosphere in central Europe. Polonaise'97 and Celebration 2000 seismic experiments. (Artikkeli tieteellisessä konferenssijulkaisussa). - 12th Meeting of the Association of European Geological Societies, MAEGS 2001, Kraków, Poland, 8-15 September 2001. Carpathians palaeogeography and geonynamics: a multidisciplinary approach. Ed. W. Zuchiewicz. Panstwowego Instytutu Geologicznego. Biuletyn 396. 55-61

POLONAISE'97, TTZ, EUROBRIDGE' 95-97 Seismic Working Group; Guterch, A. & Yliniemi, Jukka (2001) Results of new generation of seismic refraction and wide angle reflection experiments in Central and Eastern Europe - summary of results. (Abstrakti (Ei KOTAan)). - The Stephan Mueller Topical Conference of the European Geophysical Society, Quantitative Neotectonics and Seismic Hazard Assessment: New Integrated Approaches for Environmental Management, Balatonfüred, Hungary, 22-26.09.2001, Abstract Book

Postila, Markku; Laakso, Tarmo; Iinatti, Toivo & Westman, A. (2001) New digital receiver for the EISCAT mainland radars. (Abstrakti (Ei KOTAan)). - 1Oth international EISCAT workshop, Tokyo, Japan, 23-27 July 2001. 45

Raita, Tero & the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena & Yliniemi, Jukka (2001) Verification of the SVEKALAPKO 20 Hz event data set. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Ed. by S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 48

Riznichenko, O. Yu.; Sanina, I. &the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) SVEKALAPKO in Russian Karelia: Moscow group activity and seismological results. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Ed. by S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 49

Sandoval, S.; Kissling, E.; Ansorge, J. & the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) Closer look at the bowels of the Baltic Shield: high-resolution seismic tomography to 400 km depth. (Abstrakti (Ei KOTAan)). - EUROPROBE, Precambrian Time-Slice Symposium, November 1-3, 2001, VSEGEI, St. Petersburg, Russia. Abstracts. Ed. by J. S. Daly & S. Bogdanova. 52

Sandoval, S.; Kissling, E.; Ansorge, J. & the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) Exploring the tectosphere structure beneath the Baltic Shield by high-resolution teleseismic tomography. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Toim. S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 52

Sandoval, S.; Kissling, E.; Ansorge, J. & the SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) Crustal travel residuals due to 3D crustal model under the SVEKALAPKO array (Baltic Shield). (Abstrakti (Ei KOTAan)). - Abstracts of the Contributions of the 26th General Assembly of the European Geophysical Society,Nice, France, 25-30 March, 2001 (CD-ROM). Ed. by A. K. Richter. Geophysical Research Abstracts, European Geophysical Society

Shumilov O. I.; Kasatkina, E. A.; Jacoby, G.; Kyrö, E.: Kivi, R.; Turunen, Esa; Kirstidely, I. J. & Raspopov, O. M. (2001) Long-term temperature trends in NorthernSiberia and Lapland inferred from tree-rings. (Abstrakti (Ei KOTAan)). - Abstracts 24 Annual Seminar"Physics of Auroral Phenomena", Apatity, Russia, 27 February-2 March 2001. 88

SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) SVEKALAPKO Seismic tomography experiment: idea, realisation and first results. (Abstrakti (Ei KOTAan)). - EUG XI European Union of Geosciences, 8 April-12 April 2001, Strasbourg, France, Journal of Conference, Abstracts (CD-ROM), Cambridge. 355. www.campublic.co.uk/science/publications/JConfAbs/6/

SVEKALAPKO Seismic Tomography Working Group; Hjelt, Sven-Erik; Komminaho, Kari; Kozlovskaya, Elena; Raita, Tero & Yliniemi, Jukka (2001) SVEKALAPKO Seismic Tomography Experiment - idea, realisation and first results. (Abstrakti (Ei KOTAan)). - 26th General Assembly of the European Geophysical Society, 25-30 March, Nice, France. Geophysical Research Abstracts. Ed. by A. K. Richter, European Geophysical Society

Turunen, Esa (2001) Application of radio methods and chemical modeling in D-region aeronomy . (Abstrakti (Ei KOTAan)). - 10th International EISCAT Workshop, 23. -27. July 2001 Tokyo, Japan . 29

Turunen, Tauno; Westman, A.; Häggström, I. & Wannberg, G. (2001) High resolution general purpose D-layer experiment for EISCAT incoherent scatter radars using selected set of random codes. (Abstrakti (Ei KOTAan)). - 1Oth international EISCAT workshop, Tokyo, Japan,23-27 July 2001. 47

Ulich, Thomas (2001) Ionospheric long-term trends depend on the method of their derivation. (Abstrakti (Ei KOTAan)). - 2nd Workshop "Long-term Changes and Trends in the Atmosphere", Prague, Czech Republic, 2-6 July 2001

Ulich, Thomas (2001) Does the enhanced greenhouse effect affect the upper atmosphere. (Abstrakti (Ei KOTAan)). - NARP Symposium, Oulu, Finland, 10-11 May 2001

Ulich, Thomas (2001) Ionospheric long-term trends depend on the method of their derivation. (Abstrakti (Ei KOTAan)). - COST-271 Workshop, Sopron, Hungary, 25-29 September 2001

Ulich, Thomas; Crosby, N. B.; Schlegel, K.; Füllekrug, M.; Manninen, Jyrki & Rycroft, M. J. (2001) SPECIAL - Space processes and electrical changes influencing atmospheric layers. (Abstrakti (Ei KOTAan)). - 10th EISCAT Workshop, Tokyo, Japan, 23-27 July 2001. 57

Ulich, Thomas; Lehtinen, Markku; Väänänen, Antero; Pirttilä, J.; Markkanen, Markku & Rahkola, J. (2001) New meteor radar of the Sodankylä geophysical observatory. (Abstrakti (Ei KOTAan)). - Meteoroids 2001, Kiruna, Sweden, 6-10 August 2001

Ulich, Thomas; Turunen, Esa & Karinen, Arto (2001) Global change and changing upper atmosphere - observations. (Artikkeli tieteellisessä konferenssijulkaisussa). - Long Term Changes and Trends in the Atmosphere. Ed. G. Beig, New Age International. 85-108

Ulich, Thomas; Turunen, Esa & Manninen, Jyrki (2001) Can long-term measurements of cosmic radio noise absorption reveal the mesospheric greenhouse effect. (Abstrakti (Ei KOTAan)). - 2nd Workshop "Long-term Changes and Trends in the Atmosphere", Prague, Czech Republic, 2-6 July 2001. 18

Ulich, Thomas; Turunen, Esa; Verronen, P.; Nygrén, Tuomo & Sedgemore-Schulthess, F. (2001) Modelling of pulsating aurora observed by EISCAT with a detailed ion-neutral chemistry model. (Abstrakti (Ei KOTAan)). - Abstracts of the 10th International EISCAT Workshop, Tokyo, Japan, July 23-27, 2001. 18

Ulich, Thomas; Turunen, Esa; Verronen, P.; Nygrén, Tuomo & Sedgemore-Schulthess, F. (2001) Modelling of pulsating aurora observed by EISCAT with the detailed Sodankylä ion-neutral chemistry model. (Abstrakti (Ei KOTAan)). - 28th Annual European Meeting on Atmospheric Studies by Optical Methods, Aug 19-24 2001, Oulu, Finland. Eds. J. Jussila and H. Holma. 12

Ulich, Thomas; Turunen, Esa; Verronen, P.; Nygrén, Tuomo & Sedgemore-Schulthess, K. J. F. (2001) Effects of precipitating auroral particles on the neutral chemistry of the lower thermosphere. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 6584. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Usoskin, Ilya & Mursula, Kalevi (2001) On-line database of cosmic ray intensities since 1964. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 6064. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Usoskin, Ilya & Mursula, Kalevi (2001) Cosmic ray intensity vs. solar coronal source flux: Is there a simple relation. (Abstrakti (Ei KOTAan)). - AGU Spring Meeting 2001, Boston, 2001, abstract

Usoskin, Ilya; Alanko, K.; Mursula, Kalevi; Kudela, K. & Kovaltsov, G. A. (2001) Variations of the heliospheric modulation strength during the neutron monitor era. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow & M. Scholer, Copernicus. 3810-3813

Usoskin, Ilya; Bobik, P.; Gladysheva, O. G.; Kovaltsov, G. A. & Kudela, K. (2001) Sensitivity of a neutron monitor to galactic cosmic rays. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 251

Usoskin, Ilya; Kangas, Jorma & Mursula, Kalevi (2001) On-line database of cosmic ray intensities. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 98

Usoskin, Ilya; Mursula, Kalevi & Kangas, Jorma (2001) On-line database of cosmic ray intensities. (Abstrakti (Ei KOTAan)). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow and M. Scholer, Copernicus. 3842

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Heliospheric modulation of cosmic rays and solar activity during the Maunder minimum. (Abstrakti (Ei KOTAan)). - Proceedings of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 252

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Start of the Dalton minimum: Was one sunspot cycle lost in late XVIII century. (Abstrakti (Ei KOTAan)). - SOLSPA 2001 Euroconference "Solar Cycle and Space Weather", Vico Equence, Italy, September 24-29, 2001. 26

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Odd and even cycles in cosmic rays and solar activity. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedingd of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow & M. Scholer, Copernicus. 3791-3794

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Model simulation of sunspot activity during active sun and great minima. (Abstrakti (Ei KOTAan)). - Proc. of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. By V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 81

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Solar activity, geomagnetic activity and cosmic rays during the Maunder minimum. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001, European Geophysical Society. 6997. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Regular and random components of sunspot activity during active sun and great minma: model simulation. (Abstrakti (Ei KOTAan)). - AGU Spring Meeting 2001, Boston, 2001, abstract

Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Simulation of sunspot activity during active Sun and great minima times. (Abstrakti (Ei KOTAan)). - Abstracts of the 26th General Assembly of the European Geophysical Society (EGS), Nice, France, 25-30 March, 2001. Geophysical Research Abstracts, European Geophysical Society. 6977. http://www.copernicus.org/EGS/egsga/nice01/nice01.htm

Vashenyuk, E. V.; Gvozdevsky, B. B.; Phelkin, V. V.; Usoskin, Ilya; Mursula, Kalevi & Kovaltsov, G. A. (2001) Ground-level enhancement of 14 July 2000: Explaining the difference between near-by neutron monitors at Apatity and Oulu. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001. Eds. W. Dröge, H. Kunow & M. Scholer, Copernicus . 3383-3386

Verronen, P. T.; Turunen, Esa; Ulich, Thomas & Kyrölä, E. (2001) Modeling the response of the middle atmosphere to the October 1989 solar proton event using a detailed ion and neutral chemistry model. (Abstrakti (Ei KOTAan)). - Proc. of the XXXV Annual Conference of the Finnish Physical Society, 22-24 March 2001, Jyväskylä, Finland. Ed. by V. Kolhinen et al. Dept. of Physics, University of Jyväskylä Research Report No. 5/2001. 87

Verronen, P.; Turunen, Esa; Ulich, Thomas & Kyrölä, E. (2001) Modeling mesospheric odd nitrogen during the October 1989 SPE with the detailed Sodankylä ion-neutral chemistry model. (Abstrakti (Ei KOTAan)). - AGU 2001 Spring Meeting, 29.5.-2.6.2001, Boston, United States

Westman, A.; Markkanen, Jussi; Postila, Markku & Wannberg, G. (2001) Digital signal processing software for the upgraded EISCAT mainland system. (Abstrakti (Ei KOTAan)). - 1Oth international EISCAT workshop, Tokyo, Japan, 23-27 July 2001. 46

Yahnina, T. A., Yahnin, A. G.; Kangas, Jorma & Manninen, Jyrki (2001) Particle precipitation related to geomagnetic pulsations PC1 and IPDP: similarity and difference. (Abstrakti (Ei KOTAan)). - XXVI General Assembly of European Geophysical Society, Nice, France, March 25-30, 2001

Yliniemi, Jukka & EUROBRIDGE Seismic Working Group (2001) DSS EUROBRIDGE'94-97: Lithospheric Structure of the Western Part of East European Craton. (Abstrakti (Ei KOTAan)). - EUG XI Meeting (European Union of Geosciences), 8 th-12 th April 2001, Strasbourg, France. 365

Yliniemi, Jukka; Kozlovskaya, Elena; Komminaho, Kari; Hjelt, Sven-Erik & the SVEKALAPKO Deep Seismic Tomography Working Group; Raita, Tero (2001) Evidence for upper mantle reflectivity beneath the SVEKALAPKO seismic array in Finland derived from recordings of local events. (Abstrakti (Ei KOTAan)). - EUROPROBE, Precambrian Time-Slice Symposium, November 1-3, 2001, VSEGEI, St. Petersburg, Russia. Abstracts. Ed. by J. S. Daly & S. Bogdanova. 63

Yliniemi, Jukka; Kozlovskaya, Elena; Komminaho, Kari; Hjelt, Sven-Erik & the SVEKALAPKO Deep Seismic Tomography Working Group; Raita, Tero (2001) Evidence for upper mantle reflectivity beneath the SVEKALAPKO seismic array in Finland derived from recordings of local events. (Abstrakti (Ei KOTAan)). - SVEKALAPKO, an EUROPROBE project, 6th Workshop, 29.11.-2.12.2001, Lammi, Finland. Abstracts. Ed. by S-E. Hjelt. University of Oulu, Department of Geophysics, Report 24. Oulu, University of Oulu. 68

Myönnetty patentti

Lehtinen, Markku (2001) Menetelmä ja järjestelmä tutkaheijastavuuden ja doppler-siirtymän mittaamiseksi pulssitutkalla. 106656. 15.03.2001

Lehtinen, Markku (2001) Method and system for measuring radar reflectivity and doppler shift by means of a pulse radar. 6,232,913. 15.05.2001