Zobrazeno 1 - 10
of 24
pro vyhledávání: '"L. E. A. Vieira"'
Autor:
F. L. Guarnieri, B. T. Tsurutani, L. E. A. Vieira, R. Hajra, E. Echer, A. J. Mannucci, W. D. Gonzalez
Publikováno v:
Nonlinear Processes in Geophysics, Vol 25, Pp 67-76 (2018)
The purpose of this study is to present a wavelet interactive filtering and reconstruction technique and apply this to the solar wind magnetic field components detected at the L1 Lagrange point ∼ 0.01 AU upstream of the Earth. These filtered int
Externí odkaz:
https://doaj.org/article/5904b628bb4f413f9d131bfbf4066dc1
Autor:
G. A. Schmidt, J. H. Jungclaus, C. M. Ammann, E. Bard, P. Braconnot, T. J. Crowley, G. Delaygue, F. Joos, N. A. Krivova, R. Muscheler, B. L. Otto-Bliesner, J. Pongratz, D. T. Shindell, S. K. Solanki, F. Steinhilber, L. E. A. Vieira
Publikováno v:
Geoscientific Model Development, Vol 5, Iss 1, Pp 185-191 (2012)
We update the forcings for the PMIP3 experiments for the Last Millennium to include new assessments of historical land use changes and discuss new suggestions for calibrating solar activity proxies to total solar irradiance.
Externí odkaz:
https://doaj.org/article/69985241940d44eab2c8bf9974b37c65
Autor:
G. A. Schmidt, J. H. Jungclaus, C. M. Ammann, E. Bard, P. Braconnot, T. J. Crowley, G. Delaygue, F. Joos, N. A. Krivova, R. Muscheler, B. L. Otto-Bliesner, J. Pongratz, D. T. Shindell, S. K. Solanki, F. Steinhilber, L. E. A. Vieira
Publikováno v:
Geoscientific Model Development, Vol 4, Iss 1, Pp 33-45 (2011)
Simulations of climate over the Last Millennium (850–1850 CE) have been incorporated into the third phase of the Paleoclimate Modelling Intercomparison Project (PMIP3). The drivers of climate over this period are chiefly orbital, solar, volcanic, c
Externí odkaz:
https://doaj.org/article/2b6a8685440848e6806614c3657b4e0d
Autor:
N. J. Schuch, F. L. Guarnieri, E. Echer, L. E. A. Vieira, A. L. C. de Gonzalez, W. D. Gonzalez, G. Stenborg, R. Schwenn, A. Dal Lago
Publikováno v:
Geofísica Internacional, Vol 43, Iss 1, Pp 41-45 (2004)
We present height-time diagrams of the halo coronal mass ejection observed on July 25th (1999) from the Large Angle and Spectroscopic Coronagraph (LASCO), on board of the Solar and Heliopheric Observatory (SOHO) able to observe the solar corona from
Externí odkaz:
https://doaj.org/article/2d783614fa384e94a07eca6bb4378b9d
Publikováno v:
Geofísica Internacional, Vol 43, Iss 1, Pp 103-111 (2004)
Spectral analysis and reconstruction of the geomagnetic activity aa index using the wavelet transform and an iterative regression method (ARIST) is presented. The aa annual average data (1868-1998) was decomposed in frequency levels using the best wa
Externí odkaz:
https://doaj.org/article/08034f67a66644c18def151c9eb1124b
Publikováno v:
Annales Geophysicae, Vol 22, Pp 2239-2243 (2004)
Prediction of solar activity strength for solar cycles 23 and 24 is performed on the basis of extrapolation of sunspot number spectral components. Sunspot number data during 1933-1996 periods (solar cycles 17-22) are searched for periodicities by
Externí odkaz:
https://doaj.org/article/448d33f072e1419b8e60e242f0f2b675
Autor:
A. A. Dal Lago, R. Schwenn, G. Stenborg, W. D. González, A. L. C. de González, L. E. A. Vieira, E. Echer, F. L. Guarnieri, N. J. Schuch
Publikováno v:
Geofísica Internacional, Vol 43, Iss 1, Pp 41-45 (2004)
En el presente trabajo presentamos diagramas altura-tiempo de la eyección de masa coronal tipo halo observada en julio 25, 1999 con el Coronógrafo Espectroscópico y de Gran Ángulo (LASCO), a bordo del satélite Observatorio Heliosférico y Solar
Externí odkaz:
https://doaj.org/article/07c8aa3245fa481988f9dea48f37d58b
Publikováno v:
Geofísica Internacional, Vol 43, Iss 1, Pp 103-111 (2004)
En el presente trabajo se hace un análisis espectral y una reconstrucción del índice geomagnético aa, usando los métodos de ondículas y de regresión iterativa (ARIST). La serie del promedio anual de aa (1868-1998) se descompuso en niveles de f
Externí odkaz:
https://doaj.org/article/e2534bf21c884aaf9dc41459a0906934
Autor:
L. E. A. Vieira, G. Kopp, T. Dudok de Wit, L. A. da Silva, F. Carlesso, A. R. Barbosa, A. Muralikrishna, R. Santos
Publikováno v:
The Astrophysical Journal Supplement Series. 260:38
Luminosity, which is the total amount of radiant energy emitted by an object, is one of the most critical quantities in astrophysics for characterizing stars. Equally important is the temporal evolution of a star's luminosity because of its intimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a481adc9e2e36918433beab1420150d
https://doi.org/10.3847/1538-4365/ac626d
https://doi.org/10.3847/1538-4365/ac626d
Autor:
M. Rockenbach, A. Dal Lago, Ezequiel Echer, Walter D. Gonzalez, Laura A. Balmaceda, L. E. Antunes Vieira
Publikováno v:
Proceedings of the International Astronomical Union. 12:233-236
Extreme solar-terrestrial events are those in which very energetic solar ejections hit the earth?s magnetosphere, causing intense energization of the earth?s ring current. Statistically, their occurrence is approximately once per Gleissberg solar cyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccfd83449bdc81bfb5c6905567b3042f
https://doi.org/10.1017/s1743921317004185
https://doi.org/10.1017/s1743921317004185