Energetic protons at medium Earth orbit: Cross-calibration, data updates, and science discovery
Abstract
The Global Positioning System (GPS) constellation currently has 20 satellites equipped with a Combined X-ray Dosimeter (CXD) capable of measuring proton fluxes in the energy range of 10 to >100 MeV. The next public release of this data from 2001 through June 2018 will be the largest space based proton dataset available, containing > 200 satellite years of data. These measurements have been recently cross-calibrated with the NOAA GOES Energetic Particle Sensor (EPS) finding that over a wide range of energy and flux CXD calculated flux values are typically within 20% of EPS. This presentation will outline updates to the data product and how it can benefit the community as a high spatial and temporal density dataset. Variations over solar cycle time scales, as well as investigations of selected Solar Energetic Particle (SEP) events and their access to the near-Earth geospace environment, will be discussed.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMSH43E3714C
- Keywords:
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- 2720 Energetic particles: trapped;
- MAGNETOSPHERIC PHYSICSDE: 2774 Radiation belts;
- MAGNETOSPHERIC PHYSICSDE: 7514 Energetic particles;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMYDE: 7984 Space radiation environment;
- SPACE WEATHER