We make cutting-edge research within the following areas:
Research topic | Researcher in charge | |
Ionospheric research | Docent Esa Turunen | |
Inverse problems | Professor Markku Lehtinen | |
Magnetospheric research | Docent Jyrki Manninen | |
Seismic research | Docent Elena Kozlovskaya | |
Galactic cosmic rays | Professor Ilya Usoskin |
SGO inverse problems group is a member of the national Centre of Excellence in Inverse Problems Research 2013-2017.
History of research topics in SGO in ionospheric and magnetospheric research
Before end of 1950's:
- Magnetic variations
- Pulsations
Late 1950's and 1960's
- Ionospheric research
- Es-layers
- effects of nuclear explosions
- auroral D and E regions
- sunspot cycle variation in ionosphere radio aurora
- auroral X-rays
- absorption of cosmic radio noise
- auroral particle precipitation
- total electron content
- Micropulsations
1970's
- X-rays
- devewlopment of riometer and ionosonde techniques
- solar cycle variations
- seasonal and diurnal variations and anomalies of absorption
- extensive Es-layer studies
- auroral absorption substorm
- gravity waves anf F-layer
- special absorption events
- geomagnetic pulsations ands absorption
1980's
- EISCAT development, measurement, observations, analysis
- theoretical: formation of Es
- IPDP pulsdations
- ELF radio signals
- solar and magnetic cycles
- Polar Cap Absorption events
- high resolutiopn observations by EISCAT
- participation in large international campaigns
1990's
- Ion chemistry modeling
- applications of Statistical inversion theory
- satellite radio tomography, optical tomography
- PCA-events
- heating experiments
- morphology of lower ionosphere
- small scale structure of riometer absorption (IRIS)
- long term trends
- PCA events
- solar wind by EISCAT
- VLF emissions
- man made VLF
- heater induced VLF
- substorms and VLF
- ionospheric Alfvén resonator
- morphology of short period pulsations
- GUISDAP development
2000's
- Bayesian statistical inversion
- D-region chemistry modelling
- VLF-receiver
- New ionosonde
- Sampling techiques (GURSIP)
- Beacon satellite tomography
2010's
- 3rd generation of ionospheric tomography receiver and refined analysis
- Kilpisjärvi atmospheric imaging receiver station
- EISCAT_3D - phased-array techniques for next generation incoherent scatter radar
- Software-defined radio techniques
Last updated: 20.5.2015