GRACE-FO calibrated and characterized magnetometer data

Cite as:

Michaelis, Ingo; Stolle, Claudia; Rother, Martin (2021): GRACE-FO calibrated and characterized magnetometer data. V. 0201. GFZ Data Services. https://doi.org/10.5880/GFZ.2.3.2021.002

Status

I N R E V I E W : Michaelis, Ingo; Stolle, Claudia; Rother, Martin (2021): GRACE-FO calibrated and characterized magnetometer data. V. 0201. GFZ Data Services. https://doi.org/10.5880/GFZ.2.3.2021.002

Abstract

GRACE-FO carries a magnetometer as part of its attitude orbit control system (AOCS). The magnetometer does not belong to the scientific payload of the mission. However, after postprocessing of the data, information on the geomagnetic field and on electric currents in near Earth space are derived. Each GRACE-FO satellite (GF1 and GF2) carries two fluxgate magnetometers (FGM), an active one, FGM A, and a redundant one, FGM B. So far, the redundant magnetometers were not switched and are not included in the data set. The provided data consists of raw magnetic field data as provided by L1b (RAW), Magnetic field data aligned, calibrated and corrected (ACAL_CORR), CHAOS7 magnetic model predictions for core, crustal and large-scale magnetospheric field (CHAOS7), Magnetic coordinates (APEX) and Radial and field-aligned currents derived from magnetic data in ACAL_CORR (FAC).

The data are provided in NASA CDF format (https://cdf.gsfc.nasa.gov/).

Data categories

RAW: Raw magnetic field data as provided by L1b
ACAL_CORR: Magnetic field data, aligned, calibrated and corrected
CHAOS7: CHAOS7 magnetic model predictions for core, crustal and large-scale magnetospheric field
APEX: Magnetic coordinates (Emmert et al, 2010)
FAC: Radial and field-aligned currents derived from magnetic data in ACAL_CORR

Authors

Michaelis, Ingo;GFZ German Research Centre for Geosciences, Potsdam, Germany
Stolle, Claudia;GFZ German Research Centre for Geosciences, Potsdam, Germany
Rother, Martin;GFZ German Research Centre for Geosciences, Potsdam, Germany

Contact

Stolle, Claudia; GFZ German Research Centre for Geosciences, Potsdam, Germany;
Michaelis, Ingo; GFZ German Research Centre for Geosciences, Potsdam, Germany;

Contributors

Rauberg, Jan

Keywords

Earth Observation Satellites > NASA Earth System Science Pathfinder > GRACE-FO, Platform Magnetometers, Satellite-based magnetometers, Earth's magnetic field, Geomagnetism

GCMD Science Keywords

EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > MAGNETIC FIELD
EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS
Earth Remote Sensing Instruments > Passive Remote Sensing > Magnetic Field/Electric Field Instruments > MAGNETOMETERS
Earth Remote Sensing Instruments > Passive Remote Sensing > Magnetic Field/Electric Field Instruments > MTQ
Solar/Space Observing Instruments > Magnetic Field/Electric Field Instruments > FLUXGATE MAGNETOMETERS

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