Measurements of Short-Period Magnetic Field Data
Kanji Hayashi
Department of Earth and Planetary Physics, The University of Tokyo, Bunkyo, 113-0033, Japan
Acquisition of short-period magnetic field data at the Pt. Barrow, Alaska, CMDL
site was carried out normally throughout 1996-1997. Stable operation of the
search coil magnetometer was achieved after a replacement of the data logging
unit. Direct communication to the site using E-mail has also helped in quick
response time to identify and fix problems.
Data up to 1.8 GB were regularly delivered by FedEx, retrieved, and stored as
Unix files. Checking quick-look analysis data, all data are recorded normal.
A general tendency over the years of activity of short-period geomagnetic pulsations
has declined as the solar activity went into the minimum phase. The data set
obtained at the Barrow site has been helpful to watch the state of short-period
geomagnetic disturbances at the west-north end of our magnetometer network extending
into the polar region of North America. Data requests are responded to through
our web page at hpep3.geoph.s.u-tokyo.ac.jp. Some testing analysis will be prepared
from the home page. This program is expected to continue until the end of this
century.