Geomagnetic Storm Effects on the Solar Neutron Telescope at Sierra Negra, Mexico


Por: Newton-Bosch J., González L.X., Valdés-Galicia J.F., Morales-Olivares O.G., Muraki Y., Shibata S., Matsubara Y., Sako T., Watanabe K., Monterde-Andrade F., Perea-Contreras S., Ortiz E., Musalem O., Hurtado A., Taylor R.

Publicada: 1 ene 2024
Resumen:
The effects of Space Weather events on cosmic rays detected by the Solar Neutron Telescope (SNT) at Sierra Negra, Mexico, were studied. The SNT is part of the Sierra Negra Cosmic Ray Observatory (SN-CRO), located at 4580 m a.s.l. We analyzed the data recorded by six SNT channels (C2, C3, C4, N2, N3, and N4) during geomagnetic storms from December 2015 to December 2022. Using the Dst and Kp indices, 30 moderate (Dst < -50 nT, Kp = 5) and intense (Dst < -100 nT, Kp = 7) geomagnetic storms were selected. The C2, C3, C4, N2, N3 and N4 channels detect charged and neutral particles, respectively, with energy deposition thresholds of E > 60, 90 and 120 MeV. The counting rates of these channels present diurnal variation, which was removed with the seasonal trend decomposition using Loess method. After data treatment, either significant decreases or enhancements were observed in the trend of at least one SNT channel for 21 of the analyzed events. Two confirmed Forbush decreases were also identified. © Copyright owned by the author(s) under the terms of the Creative Commons.

Filiaciones:
Newton-Bosch J.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

González L.X.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

 LANCE/SCiESMEX, Instituto de Geofísica, Unidad Michoacán, Universidad Nacional Autónoma de Mexico, Michoacan, Morelia, 58190, Mexico

Valdés-Galicia J.F.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Morales-Olivares O.G.:
 Escuela Nacional de Ciencias de la Tierra, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Muraki Y.:
 Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan

Shibata S.:
 College of Engineering, Chubu University, Kasugai, 487-8501, Japan

Matsubara Y.:
 Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan

Sako T.:
 Institute for Cosmic Ray Research, University of Tokyo, Kashiwanoha, Kashiwa, Chiba, 277-8582, Japan

Watanabe K.:
 National Defense Academy of Japan, 1-10-20 Hashirimizu, Kanagawa, Yokosuka, 239-8686, Japan

Monterde-Andrade F.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Perea-Contreras S.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Ortiz E.:
 Escuela Nacional de Ciencias de la Tierra, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Musalem O.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Hurtado A.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico

Taylor R.:
 Instituto de Geofísica, Universidad Nacional Autónoma de Mexico, Circuito de la Investigación Científica, CDMX, 04510, Mexico
ISSN: 18248039
Editorial
Proceedings of Science (PoS), Via Bonomea, 265, Trieste, ITALY, Italia
Tipo de documento: Conference Paper
Volumen: 444 Número:
Páginas:

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