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Space weather forecasting is a very important tool for the space situational awareness to the space objects, the space environment and related threats and risks for manned and non-manned spacecrafts. The global network of ground based multi-directional detectors (GMDN)…
We use complementary observations from the prototype Global Muon Detector Network (GMDN) and the Advanced Composition Explorer satellite to identify precursors of geomagnetic storm events. The GMDN was completed in March 2006 with the installation of the Kuwait detector…
We analyse the precursor of a Forbush decrease (FD) observed with the Global Muon Detector Network on 2006 December 14. An intense geomagnetic storm was also recorded during this FD with the peak Kp index of 8+.
We use complementary observations … from the prototype Global Muon Detector Network … (GMDN) and the Advanced Composition Explorer … satellite to identify precursors of geomagnetic storm … events. The GMDN was completed in March 2006 … with the installation of the Kuwait detector…
We analyze the precursory anisotropy … of a Forbush decrease observed with the multidirectional … muon detector at S˜ao Martinho in Brazil … on December 14, 2006. By subtracting contribution … from the diurnal anisotropy precisely determined by … the GlobalMuon Detector Network (GMDN)…
We analyze the precursor of a Forbush decrease (FD) observed with the Global Muon Detector Network on 2006 … December 14. An intense geomagnetic storm is also recorded during this FD with the peak Kp index of 8+.
The Global Muon Detector Network (GMDN) was … completed by installing a multi-directional cosmic-ray muon … hodoscope in Kuwait University in March 2006. The GMDN is … currently consisting of four multi-directional muon detectors … located at Nagoya (Japan), Hobart (Australia), Sao Martinho …
We have developed a method for determining interplanetary coronal mass ejection … (ICME) geometry from galactic cosmic ray data recorded by the ground-based muon … detector network. The cosmic ray density depression inside the ICME, which is associated … with a Forbush decrease…
A multi-directional telescope for detection of high-energy galactic cosmic rays (GCRs) - muons … was installed in 2001, through an international cooperation between Brazil, Japan and USA, and … operated since then at the Southern Space Observatory - SSO/CRS/INPE - MCT, (29S, 53W)…
Neutron monitors are integral detectors of secondary cosmic rays. Since each of them … has its own detection efficiency, energy spectra cannot readily be derived from their … observations. To circumvent this problem…
We present for the first time hourly variations of the spatial density gradient of 50 GeV cosmic rays within a sample … solar rotation period in 2006. By inversely solving the diffusive flux equation, including the drift…
Abstract: Two identical calibration neutron monitors were completed in September 2002. They are … designed to provide an intercalibration between the ¡Ö 50 neutron monitors around the world, so that … rigidity spectra can be calculated from them.
We investigated the unidirectional fractional density gradient in GSE-z (GzU) of Galactic Cosmic Ray (GCR) by using the data obtained by the Muon detector network. The analysis period is from 1994 to 2005. We found that the yearly averaged GzU show temporal variations.
First results of the Muon Spaceweather Telescope for Anisotropies at Greifswald (MuSTAnG) that is dedicated to spaceweather forecasting are reported.
We have developed a method for determining ICME (Interplanetary coronal mass ejection) geometry from galactic cosmic ray data recorded by the ground-based muon detector network. The … cosmic ray density depression inside the ICME, which is the cause of a Forbush decrease…
The galactic cosmic ray (GCR) intensity often shows a dramatic variation responding to the arrival of interplanetary disturbances at the Earth. Aiming to observe such a variation with muon detectors…
We develop a numerical model of the cross-field diffusion of galactic cosmic rays … into an interplanetary coronal mass ejection (ICME), on the assumption that … the local part of the ICME is an expanding straight cylinder.