96 citations · 244 across the 5 of their papers we have counts for
6 papers
A Student Sounding Rocket Experiment to Probe Electron Density in the Lower Ionosphere
Joshua Goodwill, Timothy Tomaszewski, Jarrod Bieber +17
Earth's ionosphere is primarily generated by the Sun's ionization of atoms in the upper atmosphere. This plasma environment is highly dynamic, exhibits strong spatial and temporal,…
Drift effects and the average features of cosmic ray density gradient in CIRs during successive two solar minimum periods
A. Fushishita, Y. Okazaki, T. Narumi +14
We deduce on hourly basis the spatial gradient of the cosmic ray density in three dimensions from the directional anisotropy of high-energy (~50 GeV) galactic cosmic ray (GCR) inte…
Precursors of the Forbush Decrease on December 14, 2006 observed with the Global Muon Detector Network (GMDN)
A. Fushishita, T. Kuwabara, C. Kato +13
We analyze the precursor of a Forbush Decrease (FD) observed with the Global Muon Detector Network on December 14, 2006. An intense geomagnetic storm is also recorded during this F…
Drift effects and the cosmic ray density gradient in a solar rotation period: First observation with the Global Muon Detector Network (GMDN)
Y. Okazaki, A. Fushishita, T. Narumi +14
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 transp…
On the Estimation of Solar Energetic Particle Injection Timing from Onset Times near Earth
Alejandro Saiz, Paul Evenson, David Ruffolo +1
We examine the accuracy of a common technique for estimating the start time of solar energetic particle injection based on a linear fit to the observed onset time versus 1/(particl…
Antiprotons at Solar Maximum
John W. Bieber, R. A. Burger, Ralph Engel +3
New measurements with good statistics will make it possible to observe the time variation of cosmic antiprotons at 1 AU through the approaching peak of solar activity. We report a…