Atmospheric tides and mean winds in the meteor region over Santa Maria (29.7°S; 53.8°W)

被引：21

作者：

Andrioli, V. F. ^{[1
]}

Clemesha, B. R. ^{[1
]}

Batista, P. P. ^{[1
]}

Schuch, N. J. ^{[2
]}

机构：

[1] Natl Inst Space Res INPE, Sao Jose Dos Campos, SP, Brazil

[2] INPE MCT, So Reg Space Res Ctr, Santa Maria, RS, Brazil

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2009年 / 71卷 / 17-18期

关键词：

Atmospheric tides; Meteor radar; Meteor region; Mean winds; MIGRATING SOLAR TIDES; THERMOSPHERIC TIDES; MIDDLE ATMOSPHERE; MESOSPHERE; MODEL; MF; LATITUDES;

D O I：

10.1016/j.jastp.2009.07.005

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We compare meteor radar measurements of the MLT region winds at Santa Maria, Brazil (29.7 degrees S, 53.8 degrees W) with the Horizontal Neutral Wind Model (HWM-93) and the Global Scale Wave Model (GSWM-00). The observed annual variation of the prevailing zonal wind disagrees in some respects with the HWM-93 model. Also, the zonal diurnal tide amplitude shows an annual variation, whereas that of the GSWM-00 is semiannual, and its vertical wavelength is smaller than that suggested by the model. The observed semidiural tide shows seasonal and inter-annual variations and the phase is evanescent during almost the whole year. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1864 / 1876

页数：13

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