OPTICAL OBSERVATIONS OF GRAVITY-WAVES IN THE AURORAL-ZONE

被引:11
作者
DEDEUGE, MA
GREET, PA
JACKA, F
机构
[1] AUSTRALIAN ANTARCTIC DIV,KINGSTON,TAS 7050,AUSTRALIA
[2] UNIV ADELAIDE,DEPT PHYS & MATH PHYS,ADELAIDE,SA 5000,AUSTRALIA
来源
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS | 1994年 / 56卷 / 05期
基金
澳大利亚研究理事会;
关键词
D O I
10.1016/0021-9169(94)90102-3
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Night-time observations of O(1D) lambda630 nm and O(1S) lambda558 nm thermospheric emissions were made at Mawson, Antarctica (67.6-degrees-S, 62.9-degrees-E) from 1982 to 1989, using a three-field photometer. Cross-spectral analysis of the data was used to extract frequencies and horizontal trace velocities of periodic structures. Structures in the lambda630 nm emission were characteristic of large-scale waves, and those in the lambda558 nm emission were characteristic of medium-scale waves. The results showed distinct polarisation of the propagation azimuths; waves in the lambda630 nm emission propagated approximately northwestward throughout the 8 yr period, whilst propagation azimuths of waves in the lambda558 nm emission appeared to be solar-cycle-dependent. It is suggested that waves observed in the lambda630 nm emission were of predominantly auroral electrojet origin, whilst those observed in the lambda558 nm emission were of both auroral and tropospheric origin.
引用
收藏
页码:617 / 629
页数:13
相关论文
共 61 条
[1]   THE AURORAL ENERGY DEPOSITION OVER THE POLAR IONOSPHERE DURING SUBSTORMS [J].
AHN, BH ;
KROEHL, HW ;
KAMIDE, Y ;
GORNEY, DJ ;
AKASOFU, SI ;
KAN, JR .
PLANETARY AND SPACE SCIENCE, 1989, 37 (03) :239-252
[2]  
AKASOFU SI, 1978, AGU ANTARCTIC RES SE, V29, P157
[3]  
[Anonymous], 1975, WAVES ATMOSPHERE
[4]  
[Anonymous], 1984, WEATHER CLIMATE ANTA
[5]  
[Anonymous], 1987, INT GEOPHYS
[6]   INFLUENCE OF A GRAVITY WAVE ON AIRGLOW HYDROXYL ROTATIONAL TEMPERATURE AT NIGHT [J].
ARMSTRONG, EB .
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1975, 37 (12) :1585-1591
[7]   OBSERVATIONS OF JOULE AND PARTICLE HEATING IN AURORAL ZONE [J].
BANKS, PM .
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1977, 39 (02) :179-193
[8]   NEW MODEL FOR INTERACTION OF AURORAL ELECTRONS WITH ATMOSPHERE - SPECTRAL DEGRADATION, BACKSCATTER, OPTICAL EMISSION, AND IONIZATION [J].
BANKS, PM ;
CHAPPELL, CR ;
NAGY, AF .
JOURNAL OF GEOPHYSICAL RESEARCH, 1974, 79 (10) :1459-1470
[9]   OBSERVATIONS OF GRAVITY-WAVES IN THE AURORAL-ZONE [J].
BERTIN, F ;
KOFMAN, W ;
LEJEUNE, G .
RADIO SCIENCE, 1983, 18 (06) :1059-1065
[10]   MEDIUM SCALE GRAVITY-WAVES IN IONOSPHERIC F-REGION AND THEIR POSSIBLE ORIGIN IN WEATHER DISTURBANCES [J].
BERTIN, F ;
TESTUD, J ;
KERSLEY, L .
PLANETARY AND SPACE SCIENCE, 1975, 23 (03) :493-507