|KAIRA site in Kilpisjärvi. Photo Craig Heinselman, EISCAT.|
The postdoc position in Radio Science is part of the profiling actions of University of Oulu, where selected spearheads of research are supported in the research strategy of the university. At the Sodankylä Geophysical Observatory (SGO), the position is mainly meant to boost development of phased-array radio techniques, measurement methods and related science applications in preparation to the use of the forthcoming next-generation incoherent scatter radar facility, EISCAT_3D.
There is growing evidence that the energetic particle precipitation (EPP) originating from the Sun can significantly modulate the middle-atmospheric dynamics, and possibly alter the global atmospheric circulation via ionic production of minor species (such as odd hydrogen and odd nitrogen), thus causing subsequent ozone loss in the stratosphere. The Postdoc project investigates both the EPP and the photoionisation taking place in the mesosphere-lower thermosphere (MLT) altitudes (mainly 60-100 km). For the EPP, the altitude of the maximum ionisation is a direct measure of precipitation energy. This energy-height dependence makes it possible to invert the EPP flux density spectrum from any height-dependent electron density measurement.
The project exploits a comprehensive set of ground-based (and sounding rocket) electron density data obtained by various radio methods, of which the most important ones are the incoherent scatter radars (EISCAT) and the Kilpisjärvi Imaging Receiver Array, KAIRA. An important tool available at SGO is the in-house developed detailed Sodankylä Ion-neutral Chemistry (SIC).
Deadline: 28th September 2018, 24:00 (Finnish local time).
To apply, please see the full job description and use the electronic application form.
For more information, please contact Ass. Prof. Antti Kero, e-mail: antti.kero(at)sgo.fi, tel.: +358442894669.
Photo: Craig Heinselman, EISCAT Scientific Association.
Post a Comment