Comparison of F-region electron density observations by satellite radio tomography and incoherent scatter methods

• Main Authors: Nygrén, T., Markkanen, M., Lehtinen, M., Tereshchenko, E. D., Khudukon, B. Z., Evstafiev, O. V., Pollari, P.
• Other Authors: Department of Physical Sciences Oulu, University of Oulu, Geophysical Observatory, Polar Geophysical Institute of Russian Academy of Sciences (PGI), Russian Academy of Sciences Moscow (RAS), Department of Physical Sciences Helsinki, Helsingin yliopisto = Helsingfors universitet = University of Helsinki
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1996
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Norway; EISCAT
• Online Access: https://hal.science/hal-00316267; https://hal.science/hal-00316267/document; https://hal.science/hal-00316267/file/angeo-14-1422-1996.pdf

International audience In November 1995 a campaign of satellite radiotomography supported by the EISCAT incoherent scatter radar and several other instruments was arranged in Scandinavia. A chain of four satellite receivers extending from the north of Norway to the south of Finland was installed approximately along a geomagnetic meridian. The receivers carried out difference Doppler measurements using signals from satellites flying along the chain. The EISCAT UHF radar was simultaneously operational with its beam swinging either in geomagnetic or in geographic meridional plane. With this experimental set-up latitudinal scans of F-region electron density are obtained both from the radar observations and by tomographic inversion of the phase observations given by the difference Doppler experiment. This paper shows the first results of the campaign and compares the electron densities given by the two methods.