Seasonal variations of the muon flux seen by muon telescope MuSTAnG

Atmospheric- Weighted Temperature and its influence on Cosmic Ray muons

“…To compare our results with some other studies, muon data obtained from URGAN hodoscope [7] estimated a value of ≈-0.23% [K]; and [1] presented a value of 0.26% [K]. On the other hand, underground muon detectors presented positive temperature coefficients [17][18]. No previous works have been reported to calculate the water-vapor-weighted temperature.…”

Atmospheric effect corrections of MuSTAnG data

“…Corrected muon rates were compared to the results for the elimination of temperature variations obtained by the effective temperature method. It is shown that the Duperier method with three atmospheric variables leads to essentially the same atmospheric corrections of the MuSTAnG telescope intensity as the more complicated effective temperature method applied in Ganeva et al (2013). Fig.…”

“…In Figure 3 we compare our results for the year 2009 (vertical direction) with that of Ganeva et al (2013), where the effective temperature method is used.…”

“…But we also can get the temperature profile data from global meteorological models, for example the GFS (Global Forecast System, http://www.nco.ncep.noaa.gov/pmb/ products/gfs/) model developed by the National Centers for Environmental Prediction -NCEP (USA). The GFS model's data were used in the temperature effect analysis for the MuSTAnG telescope in previous work (Ganeva et al 2013). The use of this data allows us to calculate the temperature effect in real time (Berkova et al 2012).…”

“…It should be noticed that the method used in our work allows exclusion of pressure and temperature effect simultaneously, combining pressure, positive temperature and height effects on the muon intensity. Our results will be compared with the results of Ganeva et al (2013) based on meteorological models.…”