Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Geophysics》 1993-01
Add to Favorite Get Latest Update

THE IONOSPHERIC POLAR WIND OBSERVATIONS WITH EISCAT VHF RADAR

Wu JIAN(China Research Institute of Radioware Propagation, P. O. Box 138, Xinxiang 453003)MICHEL BLANC(OMP, 14 Avenue Edouard Belin, 31400 Toulouse,France)DENIS ALCAYDE(CESR, 9 Avenue Colonel-Roche, 31029 Toulouse, Prance)  
The polar wind was suggested theoretically more than 20 years before. Sufficient evidence has not been given by observations, especially observations in the high-latitude ionosphere. In this paper, we report the results of the first H+ polar wind observations with EISCAT VHF radar. It is shown during the observations that the H+ ion velocity is always upwards in the topside ionosphere and increases with altitude in the observed range, which implys that there is a pe-rament H+ thermal escape in the topside ionosphere with a temperature less than 0.26 eV, say the polar wind. Its outflow velocity is about 1 km/s at 1000 km altitude, and the flux arrives at about 1012 m-2.s-1 approaching the satured flux. The flow is still in the subsonic regime in the observed altitude range.
【Fund】: 国家教育委员会留学回国人员工作资助费资助
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved