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Fingerprint Dive into the research topics where Akimasa Yoshikawa is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Physics & Astronomy

General

ionospheres
magnetospheres
stations
magnetometers
sectors
electric fields
Malaysia
daytime
data acquisition
propagation
counters
disturbances
geomagnetic pulsations
wedges
morning
longitude
extremely low frequencies
noon
annual variations
time lag
conductivity

Engineering

field aligned currents
Hall currents
cowlings
stratospheric warming
magnetosphere-ionosphere coupling
ionospheric conductivity

Geosciences

equatorial electrojet
ionospherics
ionospheric currents
electrojets
geomagnetism
auroral arcs
Pedersen currents

Aerospace Sciences

tropical regions
magnetic equator
polar regions
equators
magnetic storms
magnetic fields
solar activity
interplanetary magnetic fields
solar wind
solar flares
Southern Hemisphere

Physics

oscillations
transient response
magnetohydrodynamic waves
S waves
polarization

Earth & Environmental Sciences

ionosphere
electrojet
magnetosphere
magnetometer
oscillation
electric field
magnetic field
conductivity
dip
S-wave
disturbance
cavity
polarization
plasma
solar activity
geomagnetic field
energy
electron
station
radar
geomagnetic storm
Southern Hemisphere
atmosphere
solar wind
electrodynamics
perturbation
data acquisition
Northern Hemisphere
electron density
simulation
solid Earth
anomaly
transfer function
effect
IMF
asymmetry
energy flow
aurora
modeling
E region
weather
analysis
diurnal variation
convection
thermosphere
F region
energetics
mesosphere
ion
solar cycle