Cosmic rays modulation in different time scales and its variation with transient events

• Grant number: 13/20876-8
• Support Opportunities: Scholarships in Brazil - Master
• Start date: February 01, 2014
• End date: January 31, 2016
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geophysics
• Principal Investigator: Emilia Correia
• Grantee: Edith Tueros Cuadros
• Host Institution: Escola de Engenharia (EE). Universidade Presbiteriana Mackenzie (UPM). São Paulo , SP, Brazil

Abstract

The aim of this is to study the variation in the intensity of low-energy cosmic rays from long to short term time scales. The intensity of cosmic rays in the Earth's surface changes with time and shows variations related to the 11-year solar cycle and shorter-duration phenomena like flares and CME's, which may cause significant effects in the near-Earth environment. Some studies have evidenced that cosmic rays could be related to atmospheric phenomena, showing variations associated with pressure and temperature. This study uses the cosmic rays data detected with detector CARPET, operating at Complex Astronomico El Leoncito (CASLEO) in the Argentinean Andes, with the objective to study in detail their long duration modulation associated with the 11-year solar cycle, as well as with the medium and short term variations related to seasonal changes in temperature and pressure, and solar transients. (AU)