Geomagnetic field variation data measured by a ground induction magnetometer at the
Gakona station, United States of America, archived in Common Data Format
DATA FILE DOWNLOAD
DATA CITATION
Shiokawa, K., S. Oyama, T. Nagatsuma, and K. Sakaguchi, Geomagnetic field variation
data measured by a ground induction magnetometer at the Gakona station, United States
of America, archived in Common Data Format, DOI:10.34515/DATA.GND-0013-0002-0101_v01,
2021.
IDENTIFICATION INFORMATION
- Title: Geomagnetic field variation data measured by a ground induction magnetometer at the
Gakona station, United States of America, archived in Common Data Format
- DOI: 10.34515/DATA.GND-0013-0002-0101_v01
- Alternate identifier(s): None.
DATASET CREATOR
DATASET OVERVIEW
Description(s)
Abstract
The induction magnetometer data observed at Gakona, Alaska (US). The data consist
of variations of three-dimensional (H, D, and Z components) geomagnetic field taken
with a sampling rate of 64 Hz, and some engineering parameters for the instrument,
such as the sensitivity and phase difference. The digital data are distributed in
the Common Data Format (CDF) through the ERG-SC repository. Importnat Notes: 1. For
frequencies below ~1Hz, use the following equation to obtain amplitude values in units
of nT/s: dB/dt (nT/s) = data (V) / quick_sensitivity. The value of quick_sensitivity
is given in global attributes. For frequencies above ~1Hz, use the exact sensitivity
curve to obtain absolute amplitude of waves. 2. Please note that the positive direction
(polarity) of H, D, and Z are different depending on the station. For example, in
February 2011, the polarity is GAK: positive=northward, eastward, upward; MGD: positive=northward,
eastward, downward; ATH: positive=northward, eastward, downward; MSR: positive=southward,
westward, upward; STA: positive=northward, eastward, downward. Please see http://stdb2.isee.nagoya-u.ac.jp/magne/magne_stations.html
for the latest information.
Resource Type
Dataset, Three-dimensional (H, D, and Z components) geomagnetic field data
Keywords
- Study of dynamical variation of particles and waves in the inner magnetosphere using
ground-based network observations (PWING)
- EARTH SCIENCE Sun-earth Interactions Ionosphere
- Magnetosphere Dynamics
- ULF Magnetic Field Waves
Version of dataset
- The official release version for scientific use containing fully-calibrated data in
physical units
v01
Publication Year
2017
Publisher
ERG Science Center, Institute for Space-Earth Environmental Research, Nagoya University
Related contents
- Reference of dataset: Shiokawa, K., R. Nomura, K. Sakaguchi, Y. Otsuka, Y. Hamaguchi, M. Satoh, Y. Katoh,
Y. Yamamoto, B. M. Shevtsov, S. Smirnov, I. Poddelsky, and M. Connors (2010), The
STEL induction magnetometer network for observation of high-frequency geomagnetic
pulsations, Earth Planets Space, 62(6), 517-524., doi:10.5047/eps.2010.05.003
- Reference of dataset: Shiokawa, K., Y. Kato, Y. Hamaguchi, Y. Yamamoto, T. Adachi, M. Ozaki, S.-I. Oyama,
M. Nosé, et al. (2017), Ground-based instruments of the PWING project to investigate
dynamics of the inner magnetosphere at subauroral latitudes as a part of the ERG-ground
coordinated observation network, Earth Planets Space, 69:160., doi:10.1186/s40623-017-0745-9
- Dataset is described by:
Contributors
- Rights Holder: Division for Ionospheric and Magnetospheric Research, Institute for Space and Earth
Environmental Research, Nagoya University
- Distributor: ERG Science Center, Institute for Space-Earth Environmental Research, Nagoya University
Language used in dataset
en
DATES OF DATASET
- Issued: 2017-07-28 (version: v01)
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DATES OF THIS METADATA