Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector

In the past years, large particle physics experiments have shown that muon rate variations detected in underground laboratories are sensitive to regional, middle‐atmosphere temperature variations. Potential applications include tracking short‐term atmosphere dynamics, such as Sudden Stratospheric W...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Tramontini, Matías Leandro, Rosas Carbajal, M., Nussbaum, C., Gibert, D., Marteau, J.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Astronómicas
Muon tomography
Atmosphere dynamics
Sudden stratospheric warming
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/119113
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-119113
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Muon tomography
Atmosphere dynamics
Sudden stratospheric warming
spellingShingle Ciencias Astronómicas
Muon tomography
Atmosphere dynamics
Sudden stratospheric warming
Tramontini, Matías Leandro
Rosas Carbajal, M.
Nussbaum, C.
Gibert, D.
Marteau, J.
Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
topic_facet Ciencias Astronómicas
Muon tomography
Atmosphere dynamics
Sudden stratospheric warming
description In the past years, large particle physics experiments have shown that muon rate variations detected in underground laboratories are sensitive to regional, middle‐atmosphere temperature variations. Potential applications include tracking short‐term atmosphere dynamics, such as Sudden Stratospheric Warmings. We report here that such sensitivity is not only limited to large surface detectors under highopacity conditions. We use a portable muon detector conceived for muon tomography for geophysical applications, and we study muon rate variations observed over 1 year of measurements at the Mont Terri Underground Rock Laboratory, Switzerland (opacity of ~700 meter water equivalent). We observe a direct correlation between middle‐atmosphere seasonal temperature variations and muon rate. Muon rate variations are also sensitive to the abnormal atmosphere heating in January–February 2017, associated to a Sudden Stratospheric Warming. Estimates of the effective temperature coefficient for our particular case agree with theoretical models and with those calculated from large neutrino experiments under comparable conditions. Thus, portable muon detectors may be useful to (1) study seasonal and short‐term middleatmosphere dynamics, especially in locations where data are lacking such as midlatitudes, and (2) improve the calibration of the effective temperature coefficient for different opacity conditions. Furthermore, we highlight the importance of assessing the impact of temperature on muon rate variations when considering geophysical applications. Depending on latitude and opacity conditions, this effect may be large enough to hide subsurface density variations due to changes in groundwater content and should therefore be removed from the time series.
format Articulo
Articulo
author Tramontini, Matías Leandro
Rosas Carbajal, M.
Nussbaum, C.
Gibert, D.
Marteau, J.
author_facet Tramontini, Matías Leandro
Rosas Carbajal, M.
Nussbaum, C.
Gibert, D.
Marteau, J.
author_sort Tramontini, Matías Leandro
title Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
title_short Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
title_full Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
title_fullStr Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
title_full_unstemmed Middle‐Atmosphere Dynamics Observed With a Portable Muon Detector
title_sort middle‐atmosphere dynamics observed with a portable muon detector
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/119113
work_keys_str_mv AT tramontinimatiasleandro middleatmospheredynamicsobservedwithaportablemuondetector
AT rosascarbajalm middleatmospheredynamicsobservedwithaportablemuondetector
AT nussbaumc middleatmospheredynamicsobservedwithaportablemuondetector
AT gibertd middleatmospheredynamicsobservedwithaportablemuondetector
AT marteauj middleatmospheredynamicsobservedwithaportablemuondetector
bdutipo_str Repositorios
_version_ 1764820447929565187

Ejemplares similares