Vol. 57 No. 4 (2018)
Articles

Atmospheric corrections of the cosmic ray fluxes detected by the Solar Neutron Telescope at the Summit of the Sierra Negra Volcano in Mexico

M. Barrantes
Instituto de Geofísica Universidad Nacional Autónoma de México
J. F. Valdés-Galicia
Instituto de Geofísica Universidad Nacional Autónoma de México
O. Musalem
Instituto de Geofísica Universidad Nacional Autónoma de México
A. Hurtado
Instituto de Geofísica Universidad Nacional Autónoma de México
M. Anzorena
Instituto de Geofísica Universidad Nacional Autónoma de México
R. Taylor
Instituto de Geofísica Universidad Nacional Autónoma de México
Y. Muraki
Institute for Space-Earth Environmental Research Nagoya University
Y. Matsubara
Institute for Space-Earth Environmental Research Nagoya University
T. Sako
Institute for Space-Earth Environmental Research Nagoya University
Y. Sasai
Institute for Space-Earth Environmental Research Nagoya University
N. Hinaro
Institute for Space-Earth Environmental Research Nagoya University
N. Tateiwa
Institute for Space-Earth Environmental Research Nagoya University
H. Tsujihara
Institute for Space-Earth Environmental Research Nagoya University
L. X. González
SCiESMEX-IGUM Universidad Nacional Autónoma de México
E. Ortiz
Instituto de Ciencias Físicas Universidad Autónoma de México
S. Shibata
College of Engineering, Chubu University
K. Watanabe
Deparment of Earth and Ocean Sciences School of Applied Sciences National Defense Academy of Japan
T. Sakai
College of Industrial Technologies Nihon University

Published 2018-10-01

Keywords

  • parámetros atmosféricos,
  • coeficientes de corrección,
  • Decrecimiento Forbush,
  • telescopio de neutrones solares
  • atmospheric parameters,
  • correction coefficients,
  • Forbush Decrease,
  • Solar neutron yelescope

How to Cite

Barrantes, M., Valdés-Galicia, J. F., Musalem, O., Hurtado, A., Anzorena, M., García, R., Taylor, R., Muraki, Y., Matsubara, Y., Sako, T., Sasai, Y., Hinaro, N., Tateiwa, N., Tsujihara, H., González, L. X., Ortiz, E., Shibata, S., Watanabe, K., & Sakai, T. (2018). Atmospheric corrections of the cosmic ray fluxes detected by the Solar Neutron Telescope at the Summit of the Sierra Negra Volcano in Mexico. Geofísica Internacional, 57(4), 253-275. https://doi.org/10.22201/igeof.00167169p.2018.57.4.2105

Abstract

A Solar Neutron Telescope (SNT) was installed at the summit of Sierra Negra volcano, Pue., Mexico (19.0º N, 97.3º W, 4580 m above sea level); it is in operation since 2004. In this work, values of barometric pressure, dynamic pressure, ambient temperature and relative humidity obtained by a meteorological station close to the SNT were used, to calculate the coefficients of atmospheric correction to the registered cosmic ray flux. Once the cosmic ray data are free from variations of atmospheric origin, the time profiles observed by the SNT during five selected Forbush type decreases during the period 2011-2013 were analysed. Results obtained by several energy deposition channels (30, 60, 90 MeV) are discussed to establish the reliability of the SNT for this type of events.