A new approach to momentum flux determinations using SKiYMET meteor radars

被引:83
作者
Hocking, WK [1 ]
机构
[1] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada
关键词
meteorology and atmospheric dynamics; middle atmosphere dynamics; waves and tides; climatology;
D O I
10.5194/angeo-23-2433-2005
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The current primary radar method for determination of atmospheric momentum fluxes relies on multiple beam studies, usually using oppositely directed coplanar beams. Generally VHF and MF radars are used, and meteor radars have never been successfully employed. In this paper we introduce a new procedure that can be used for determination of gravity wave fluxes down to time scales of 2-3 h, using the SKiYMET meteor radars. The method avoids the need for beam forming, and allows simultaneous determination of the three components of the wind averaged over the radar volume, as well as the variance and flux components (u'(2)) over bar, (v'(2)) over bar, (w'(2)) over bar, (u'v') over bar. (u'w') over bar and (v'w') over bar, where u' refers to the fluctuating eastward wind, u' refers to the fluctuating northward wind, and w' refers to the fluctuating vertical wind. Data from radars in New Mexico and Resolute Bay are used to illustrate the data quality, and demonstrate theoretically expected seasonal forcing.
引用
收藏
页码:2433 / 2439
页数:7
相关论文
共 16 条
[1]   Gravity wave dynamics and effects in the middle atmosphere [J].
Fritts, DC ;
Alexander, MJ .
REVIEWS OF GEOPHYSICS, 2003, 41 (01)
[2]  
FRITTS DC, 1987, J ATMOS SCI, V44, P605, DOI 10.1175/1520-0469(1987)044<0605:MMFSAA>2.0.CO
[3]  
2
[4]  
FRITTS DC, 1992, J ATMOS SCI, V49, P2353, DOI 10.1175/1520-0469(1992)049<2353:DOTEMO>2.0.CO
[5]  
2
[6]   Resolute Bay VHF radar: A multipurpose tool for studies of tropospheric motions, middle atmosphere dynamics, meteor physics, and ionospheric physics [J].
Hocking, WK ;
Kelley, M ;
Rogers, R ;
Brown, WOJ ;
Moorcroft, D ;
St Maurice, JP .
RADIO SCIENCE, 2001, 36 (06) :1839-1857
[7]   Real-time determination of meteor-related parameters utilizing modem digital technology [J].
Hocking, WK ;
Fuller, B ;
Vandepeer, B .
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, 2001, 63 (2-3) :155-169
[8]  
HOLTON JR, 1983, J ATMOS SCI, V40, P2497, DOI 10.1175/1520-0469(1983)040<2497:TIOGWB>2.0.CO
[9]  
2
[10]   TURBULENCE AND STRESS OWING TO GRAVITY-WAVE AND TIDAL BREAKDOWN [J].
LINDZEN, RS .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1981, 86 (NC10) :9707-9714