Studies of the Polar Cap Ionosphere

Updated 2003-07-08

The experiments comprise automated receiving systems for 150 and 400 MHz transmissions from NIMS (formerly known as NNSS) satellites that are used to determine the ionospheric electron content by means of the differential carrier phase method. Receivers are located at Ny-Ålesund, Longyearbyen, Bjørnøya and Tromsø. Measurements of electron content from the receiver network are inverted in a tomographic reconstruction algorithm to yield two-dimensional images of electron density over a wide region. The observations are used to investigate the dynamical processes responsible for the spatial structuring of the plasma distribution in the polar ionosphere. These tomographic images are complementary to measurements made using the EISCAT and EISCAT Svalbard radars and auroral optical instruments located on Svalbard.

Time frame

Project time span
1995 - 2010
Data collection
not specified
Data processing
not specified
Data reporting
not specified

Contact information

Contact person
Eleri Pryse
Institute of Mathematical and Physical Sciences, University of Wales Aberystwyth, Aberystwyth, Ceredigion SY23 3BZ, UK
+44 1970 622821
+44 1970 622826
Other project contacts
Helen Middleton:

Parameters and Media

Not specified


Regions studied

Data availability

Samples/specimens archived in specimen banks?

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
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