Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Ezequiel Echer"'
Autor:
Rajkumar Hajra, Bruce T. Tsurutani, Quanming Lu, Gurbax S. Lakhina, Aimin Du, Ezequiel Echer, Adriane M. S. Franco, Mauricio J. A. Bolzan, Xinliang Gao
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 146 (2024)
Magnetospheric relativistic electrons are accelerated during substorms and strong convection events that occur during high-intensity long-duration continuous auroral electrojet activity (HILDCAA) events, associated with solar wind high-speed streams
Externí odkaz:
https://doaj.org/article/4c85c5d9254745bdb711cd6216fb9e20
Publikováno v:
Earth and Planetary Physics, Vol 3, Iss 6, Pp 560-569 (2019)
Correlation lengths of ultra-low-frequency (ULF) waves around Mars were computed for the first time, using data from MEX (electron density from 2004 to 2015) and MAVEN (electron density and magnetic field from 2014 to 2016). Analysis of the MEX data
Externí odkaz:
https://doaj.org/article/e46a0dafc3c54fd6b5b7f66282a1c3fd
Autor:
Nivaor Rodolfo Rigozo, Marcelo Barcellos da Rosa, Pabulo Henrique Rampelotto, Mariza Pereira de Souza Echer, Ezequiel Echer, Daniel Jean Roger Nordemann, Damaris Kirsch Pinheiro, Nelson Jorge Schuch
Publikováno v:
Revista Brasileira de Meteorologia, Vol 27, Iss 2, Pp 243-252 (2012)
Ozone plays a very important role in the nature due its characteristics as a natural filter of ultraviolet solar radiation. Thus, it is pertinent for the scientific community to understand all natural influence factors involving ozone along with a la
Externí odkaz:
https://doaj.org/article/aa4516725f0c40b88f51a462cc2979f8
Autor:
Kazuo Makita, Augusta Maria Passaglia Schuch, Damaris Kirsch Pinheiro, Ezequiel Echer, Liana Franco Padilha, Danieli Balbueno Contreira, Fernando Luís Guarnieri, Ricardo André Guarnieri, Nelson Jorge Schuch
Publikováno v:
Geofísica Internacional, Vol 43, Iss 1, Pp 17-22 (2004)
Anticorrelation behavior between total ozone column and UV-B radiation was observed for clear sky conditions during the year 2000 at the Southern Space Observatory OES/CRSPE/INPE – MCT (29.44°S, 53.82°W) located in the southern part of Brazil. To
Externí odkaz:
https://doaj.org/article/a246b64f910f4b5cb7c1f608147e86a6
Autor:
Alan Prestes, Luis Eduardo Antunes Vieira, Ezequiel Echer, Daniel J. R. Nordemann, Nivaor Rodolfo Rigozo
Publikováno v:
Geofísica Internacional, Vol 43, Iss 2, Pp 281-285 (2004)
We present a new interactive method for tree-ring width determination. It uses a high resolution scanner and a PC. A program to process scanned tree-ring images was developed in Interactive Data Language (IDL 5.0) environment. The method successfully
Externí odkaz:
https://doaj.org/article/5f72187f0fba44ff92755fd4d99f9ff1
Publikováno v:
Geofísica Internacional, Vol 43, Iss 2, Pp 287-294 (2004)
Wavelet spectral analysis was made in tree ring width data from Brazil (27°11’S, 51°59’W) and Chile (49°12’S, 73°50’W) over the period 1876-1994. Southern Oscillation Index–SOI, representative of ENSO phenomena, and Global mean Surface
Externí odkaz:
https://doaj.org/article/af9368b080734fd29bbf60c9a1a963e9
Publikováno v:
Geofísica Internacional, Vol 43, Iss 2, Pp 287-294 (2004)
Se llevó a cabo un análisis espectral mediante el método de Ondículas en anillos de árboles de Brazil (27°11’S, 51°59’W) y Chile (49°12’S, 73°50’W) durante 1876-1994. También se aplicó este método a la Oscillación del Sur, SOI, r
Externí odkaz:
https://doaj.org/article/94e33eca0057486d8cba87ef855fae8d
Autor:
Nivaor Rodolfo Rigozo, Daniel J. R. Nordemann, Ezequiel Echer, Luis Eduardo Antunes Vieira, Alan Prestes
Publikováno v:
Geofísica Internacional, Vol 43, Iss 2, Pp 281-285 (2004)
Presentamos un nuevo método interactivo para la determinación de la anchura de los anillos de los árboles. Se usa un escaner de la alta resolución y un microordenador en los que se trabaja con un programa para estudiar imágenes de anillos de ár
Externí odkaz:
https://doaj.org/article/f222e14ba16f42e79c6fff7a1199127e
Autor:
Ricardo André Guarnieri, Fernando Luís Guarnieri, Danieli Balbueno Contreira, Liana Franco Padilha, Ezequiel Echer, Damaris Kirsch Pinheiro, Augusta Maria Passaglia Schuch, Kazuo Makita, Nelson Jorge Schuch
Publikováno v:
Geofísica Internacional, Vol 43, Iss 1, Pp 17-22 (2004)
En este trabajo se utilizaron datos del año 2000 de radiación UV-B medidos con un Radiómetro UV-B (Eko Instruments MS-210W) instalado en el sur de Brazil, en el Observatorio Espacial del Sur (OES/CRSPE/INPE – MCT), y datos de la columna total de
Externí odkaz:
https://doaj.org/article/d912ce6653144e169390a277cdea49e0
Autor:
Ezequiel Echer, Nivaor Rodolfo Rigozo, Daniel Jean Roger Nordemann, Luiz Eduardo Antunes Vieira, Alan Prestes, Heloisa Helena De Faria
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 25, Iss 2, Pp 157-163 (2003)
O número de manchas solares é o índice mais antigo da atividade solar, com observações de manchas solares estendendo-se desde 1611. Ele serve como uma medida da atividade magnética geral do Sol. Neste trabalho apresentamos uma descrição das c
Externí odkaz:
https://doaj.org/article/6d0ae001eb694accb92b48639a868a73