Table information for 'geomagnetic_field.main'

General

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

The Alma-Ata Geomagnetic Observatory provides continuous monitoring of Earth's geomagnetic field. Located at 1300 meters above sea level in the foothills of the Tien Shan Mountains, approximately 10 km from Almaty, Kazakhstan, the observatory operates state-of-the-art equipment certified by INTERMAGNET, including the fluxgate magnetometer LEMI-008 and the proton Overhauser magnetometer POS-1.

The data service includes:

The service provides open access to minute and hourly data (XYZF components and K-index of geomagnetic activity) through the Institute of Ionosphere's website for data from 2003 onward. Additionally, INTERMAGNET hosts minute variations data since 2004. Data prior to 2003 are available upon request.

The data is collected and provided by the Institute of Ionosphere (https://ionos.kz/).

For a list of all services and tables belonging to this table's resource, see Information on resource 'Alma-Ata Geomagnetic Observatory Data Service'

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference https://ionos.kz/en/geomagnetic-observatory-2/ either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:geomagnetic_fiel,
  year=2024,
  title={Alma-Ata Geomagnetic Observatory Data Service},
  author={Fesenkov Astrophysical Institute},
  url={https://dachs.fai.kz/tableinfo/geomagnetic_field.main},
  howpublished={{VO} resource provided by the {FAI} archives}
}

Columns

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
obs_time Timestamp Universal time of the observation at the detector. N/A time.epoch
obs_mjd Observed at Universal time of the observation at the detector as MJD. d time.epoch
b_x B_x Magnetic field component in the X direction. nT phys.magField;pos.cartesian.x
b_y B_y Magnetic field component in the Y direction. nT phys.magField;pos.cartesian.y
b_z B_z Magnetic field component in the Z direction. nT phys.magField;pos.cartesian.z
b_total B_total Total magnetic field strength. nT phys.magField
source_path Src. File this row was parsed from. N/A meta.id;meta.file

Columns that are parts of indices are marked like this.

Other

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VOResource

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