Sato, Natuo and Murata, Y. and Yamagishi, Hisao and Yukimatu, A.S. and Kikuchi, M. and Makita, K. and Huigen, Yang and Ruiyuan, Liu (1999) Simultaneous observations of Syowa East HF radar and Zhongshan Station optical aurora associated with the solar wind negative pressure impulse. Advances in Polar Science, 10 (2). pp. 81-87.
![[img]](https://library.arcticportal.org/style/images/fileicons/application_pdf.png) |
PDF
Download (1MB) |
Abstract
The field of views of the Syowa East HF radar covers over Zhongshan Station (magnetic latitude ~ 74.5°S). We examined the relation between HF radar signatures and optical aurora by using the data obtained on 3 August 1997. A geomagnetic negative sudden impulse (SI(-)) occurred at ~ 1432 UT on 3 August 1997 associated with the sudden decrease of solar wind plasma density. From the behavior of the optical aurora observed by all-sky TV camera and scanning photometers at Zhongshan Station, a sudden enhancement of auroral emission intensity and poleward moving signature occurred associated with the negative Sl. It is interesting that the temporal and spatial variations of the HF radar backscatter power showed one to one correlations with optical aurora data. The details of this event are examined and compared with the data onboard WIND satellite and from ground based magnetometers.
| Item Type: | Article |
|---|---|
| Related URLs: | |
| Keywords: | aurora, HF radar, plasma convection, magnetic variation, Zhongshan Station. |
| Subjects: | Unspecified |
| Organizations: | Unspecified |
| Date Deposited: | 26 Apr 2023 13:40 |
| URI: | http://library.arcticportal.org/id/eprint/2178 |
Actions (login required)
 |
View Item |