| Popis: |
Evidence for resonant absorption of VLF waves was obtained at Zhongshan Station, Antarctica. The L value for Zhongshan Station is about 14. Due to such high geomagnetic latitude, no whistlers were received, but a lot of VLF emissions have been recorded since the station was founded in 1990. The VLF emission recorded in Zhongshan Station are usually wide-band emission, from a few hundred Hz to about 15kHz. In February and June of 1993, we recorded two sets of VLF emissions never seen before. The main feature for the emission is a blank curve around 5kHz cut from the wide-band emissions. We explain these observations in term of resonant absorption of VLF waves by ions. |
