Research fields: Solar physics and solar-terrestrial physics
- Sunspot databases, comparison and calibration of sunspot data
- Debrecen Photoheliographic Data (DPD) and its extension with the revised Greenwich Photoheliographic Results (GPR)
- SOHO/MDI-Debrecen Data ( SDD ) and SDO/HMI-Debrecen Data ( HMIDD ) space-borne sunspot and facular data
- Geoeffective solar and interplanetary events and their effects
- Sunspot group tilt angles
- Statistical studies of solar flares
- Flare prediction based on sunspot group dynamics
- Statistical studies of sunspot groups and their evolution
- Solar irradiance variations (effects of active region properties, sunspots, faculae)
- Historical Hungarian solar observations
- Recent projects: EHEROES (FP7), SOTERIA (FP7), ESA-PECS (No. C98017, C98081)
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