| Full text | |
| Author(s): |
De Mendonca, R. R. S.
;
Raulin, J. -P.
;
Bertoni, F. C. P.
;
Echer, E.
;
Makhmutov, V. S.
;
Fernandez, G.
Total Authors: 6
|
| Document type: | Journal article |
| Source: | JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS; v. 73, n. 11-12, p. 7-pg., 2011-07-01. |
| Abstract | |
We present results obtained at El Leoncito (CASLEO, San Juan, Argentina) with the CARPET charged particles detector installed in April 2006. The observed modulation of the cosmic ray flux is discussed as a function of its time variability and it is related to longer solar activity variations and to shorter variations during solar and geomagnetic transient activity. Short period (few minutes, few hours) cosmic ray modulation events are observed during rain time (precipitation) and significant variations of the atmospheric electric field. Complementary observations of the atmospheric electric field indicate that its time variations play an important role in the detected cosmic ray event. (C) 2010 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 09/11935-5 - Influence of solar, geomagnetic and atmospheric activities in cosmic ray flux modulation. |
| Grantee: | Rafael Rodrigues Souza de Mendonça |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 07/05630-1 - Ionospheric effects of magnetic storms in global scale |
| Grantee: | Fernando Celso Perin Bertoni |
| Support Opportunities: | Research Grants - Young Investigators Grants |