ALTITUDE PROFILE OF THE POLAR WIND VELOCITY AND ITS RELATIONSHIP TO IONOSPHERIC CONDITIONS

被引：51

作者：

ABE, T

WHALEN, BA

YAU, AW

WATANABE, S

SAGAWA, E

OYAMA, KI

机构：

[1] AOYAMA GAKUIN UNIV,COLL SCI & ENGN,TOKYO 157,JAPAN

[2] HOKKAIDO INST INFORMAT TECHNOL,HOKKAIDO 069,JAPAN

[3] COMM RES LAB,TOKYO 183,JAPAN

[4] INST SPACE & ASTRONAUT SCI,KANAGAWA 229,JAPAN

来源：

GEOPHYSICAL RESEARCH LETTERS | 1993年 / 20卷 / 24期

关键词：

D O I：

10.1029/93GL02837

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We present Akebono observations of the polar wind velocity and the ambient electron temperature in the polar ionosphere. The velocity of the H+ polar wind increases from about 1 km/s at 2000 km altitude to about 6 km/s at 4000 km altitude, and correlates with the local electron temperature at a given altitude. It is only weakly dependent on magnetic activity, but is generally more variable at active times. Our observation demonstrates the direct relationship between the local magnitude of ion acceleration and that of the ambipolar electric field responsible for the acceleration.

引用

页码：2825 / 2828

页数：4

共 16 条

[1] MEASUREMENTS OF TEMPERATURE AND VELOCITY DISTRIBUTION OF THERMAL ELECTRONS BY THE AKEBONO (EXOS-D) SATELLITE - EXPERIMENTAL SETUP AND PRELIMINARY-RESULTS [J].