Zobrazeno 1 - 10
of 17
pro vyhledávání: '"M. Syrjasuo"'
Publikováno v:
Annales Geophysicae, Vol 42, Pp 103-115 (2024)
Due to a large number of automatic auroral camera systems on the ground, image data analysis requires more efficiency than what human expert visual inspection can provide. Furthermore, there is no solid consensus on how many different types or shapes
Externí odkaz:
https://doaj.org/article/0377e16bc9f34ee99dc2adedd8d366bb
Publikováno v:
Annales Geophysicae, Vol 28, Pp 711-718 (2010)
This study examines auroral colour camera data from the Canadian Dense Array Imaging SYstem (DAISY). The Dense Array consists of three imagers with different narrow (compared to all-sky view) field-of-view optics. The main scientific motivation ar
Externí odkaz:
https://doaj.org/article/1ee6447f9d0146d2826d683a9a2e919f
Autor:
K. Kauristie, T. I. Pulkkinen, O. Amm, A. Viljanen, M. Syrjäsuo, P. Janhunen, S. Massetti, S. Orsini, M. Candidi, J. Watermann, E. Donovan, P. Prikryl, I. R. Mann, P. Eglitis, C. Smith, W. F. Denig, H. J. Opgenoorth, M. Lockwood, M. Dunlop, A. Vaivads, M. André
Publikováno v:
Annales Geophysicae, Vol 19, Pp 1683-1696 (2001)
On 7 December 2000, during 13:30–15:30 UT the MIRACLE all-sky camera at Ny Ålesund observed auroras at high-latitudes (MLAT ~ 76) simultaneously when the Cluster spacecraft were skimming the magnetopause in the same MLT sector (at ~ 16:00–
Externí odkaz:
https://doaj.org/article/9a2789173b7a453daa91e4b81e0351a9
Autor:
K. Kauristie, T. I. Pulkkinen, A. Huuskonen, R. J. Pellinen, H. J. Opgenoorth, D. N. Baker, A. Korth, M. Syrjäsuo
Publikováno v:
Annales Geophysicae, Vol 15, Pp 967-983 (1997)
Rapid fading of auroral activity a few minutes before substorm breakup has earlier been analyzed in case-studies. Here we report on a study in which all-sky camera (ASC) and magnetic data over 3 years were examined to find breakups that were accom
Externí odkaz:
https://doaj.org/article/d4062bf714e64092bb10b9ab46af4b19
Autor:
M. Syrjasuo, Eric Donovan
Publikováno v:
Annales Geophysicae, Vol 22, Pp 1103-1113 (2004)
Annales Geophysicae, Vol 22, Iss 4, Pp 1103-1113 (2004)
Scopus-Elsevier
Annales Geophysicae, Vol 22, Iss 4, Pp 1103-1113 (2004)
Scopus-Elsevier
Modern ground-based digital auroral All-Sky Imager (ASI) networks capture millions of images annually. Machine vision techniques are widely utilised in the retrieval of images from large data bases. Clearly, they can play an important scientific role
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae81eff0e9f7c5c7576b872faeb299d1
https://www.ann-geophys.net/22/1103/2004/
https://www.ann-geophys.net/22/1103/2004/
Autor:
M. Syrjasuo, N. Partamies
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 9:176-179
The electromagnetic coupling of the solar wind, Earth's magnetic field, and the upper atmosphere allows us to study the near-Earth space phenomena by monitoring the auroral displays in the polar regions. Ground-based networks facilitate spatial and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a664d35116301e222ac1933d7e08ce79
https://doi.org/10.1109/lgrs.2011.2163616
https://doi.org/10.1109/lgrs.2011.2163616
Autor:
J. Peltonen, M. Roos, P. Portin, Manuel Grande, Hans Andersson, M. Anttila, Rami Vainio, Mark L. Prydderch, M. Syrjasuo, G.W. Fraser, L. Alha, Juhani Huovelin, Hannu Koskinen, Karri Muinonen, M. Kato, J. Lehti, Eino Valtonen, M. Talvioja, T. Vihavainen, Jyri Näränen, E. Kiuru, Walter Schmidt, A. Malkki
Publikováno v:
Planetary and Space Science. 58:96-107
The Solar Intensity X-ray and particle Spectrometer (SIXS) on the BepiColombo Mercury Planetary Orbiter (MPO) will investigate the direct solar X-rays, and energetic protons and electrons which pass the Spacecraft on their way to the surface of Mercu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89f098702166c86c4bf01aa710c50caa
https://doi.org/10.1016/j.pss.2008.11.007
https://doi.org/10.1016/j.pss.2008.11.007
Publikováno v:
Canadian Journal of Physics. 85:101-109
The prototype of an auroral colour camera named Rainbow was run at the Auroral Station in Adventdalen, Svalbard, Norway, during a Finnish optical campaign in February, 2004. Instead of narrow band-pass filters and grey-scale images, this imager recor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfd7ccf2d04350142a7bfb8347d9018d
https://doi.org/10.1139/p06-090
https://doi.org/10.1139/p06-090
Autor:
J. S. Murphree, W. W. Liu, L. L. Cogger, M. Syrjasuo, George J. Sofko, James F. Spann, Robert Rankin, Thomas J. Immel, Eric Donovan, Michael G. Henderson, Stephen B. Mende, C. Y. Tu, John W. Bonnell, John B. Sigwarth, Aaron J. Ridley, Tuija Pulkkinen, Mark Lester, Emma Spanswick, T. S. Trondsen, P. T. Jayachandran
Publikováno v:
Advances in Space Research. 40:409-418
The overarching objective of the ILWS Geospace program is to facilitate system level science. This demands synoptic observations such as global auroral imaging. At present, there is no funded mission during ILWS that incorporates a global auroral ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1600a835c8e88dc4fd7aa3585b96566
https://doi.org/10.1016/j.asr.2006.09.028
https://doi.org/10.1016/j.asr.2006.09.028
Autor:
T. S. Trondsen, S. Harris, Martin Connors, Eric Donovan, M. Greffen, Stephen B. Mende, Vassilis Angelopoulos, Brian Jackel, M. Syrjasuo, Harald U. Frey, Laura Peticolas, I. Voronkov
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 68:1472-1487
Time History of Events and Macroscale Interactions during Substorms (THEMIS) is a NASA MIDEX mission scheduled for launch in 2006. THEMIS will consist of five magnetospheric satellites in equatorial orbits. Three of the spacecraft will have apogees a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a972b0f18edf5a98aa5e4147d053a9a
https://doi.org/10.1016/j.jastp.2005.03.027
https://doi.org/10.1016/j.jastp.2005.03.027