Modeling the Modification of the Nighttime High-Latitude F-Region by Powerful HF Radiowaves

Details Modeling the Modification of the Nighttime High-Latitude F-Region by Powerful HF Radiowaves Modeling the Modification of the Nighttime High-Latitude F-Region by Powerful HF Radiowaves

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cosre..40...55m&link_type=abstract

Cosmic Research, v. 40, Issue 1, p. 55-61 (2002).

Mathematics

Scientific paper

A mathematical model of the high-latitude F-region, taking the ionospheric plasma convection into account, is used for modeling a response of the auroral F-region to irradiation by powerful high-frequency (HF) radiowaves. The model enables us to calculate the time variations in the profiles of the electron concentration, the velocity of positive ions, and the ion and electron temperatures in the part of a magnetic-flux tube moving over an artificial ionospheric heater under the action of a convective electric field. The modeling was carried out for a part of the magnetic flux tube intersecting the F-layer irradiated by the Norwegian heater at Tromsö when it is located near the midnight magnetic meridian. The calculations were made for the equinox conditions under the high solar and low geomagnetic activity. The results of our modeling show that substantial variations in the profiles of the electron temperature, the velocity of positive ions, and the electron concentration can be produced in the nighttime high-latitude F-layer due to HF heating. The perturbation caused by a 20 s rectangular pulse should exist for about 20 min at the level of the F-layer maximum. The disturbed plasma volume can leave the region irradiated by the heater and move away for over 500 km within the above-mentioned time period.

Affiliated with

Also associated with

No associations

Rating

Modeling the Modification of the Nighttime High-Latitude F-Region by Powerful HF Radiowaves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modeling the Modification of the Nighttime High-Latitude F-Region by Powerful HF Radiowaves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling the Modification of the Nighttime High-Latitude F-Region by Powerful HF Radiowaves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1088795