A study of medium-scale atmospheric gravity waves in the northern hemisphere using the Saskatoon SuperDARN HF radar and the analytic signal technique
Abstract
The analytic signal technique has been applied to the Saskatoon SuperDARN HF radar array to determine propagation property of medium-scale atmospheric gravity waves MSAGWs in the northern hemisphere A case study showed that the propagation direction of MSAGWs changes from southwest to southeast at pre-noon and changes back to southwest at post-noon It is speculated that this change was related to fore- and after-noon maxima in the distribution of field-aligned currents due to Joule heating
- Publication:
-
36th COSPAR Scientific Assembly
- Pub Date:
- 2006
- Bibcode:
- 2006cosp...36.2206H