High Rossby-wave activity in austral winter 2002:: Modulation of the general circulation of the MLT during the MaCWAVE/MIDAS northern summer program -: art. no. L24S03

被引：60

作者：

Becker, E ^{[1
]}

Müllemann, A ^{[1
]}

Lübken, FJ ^{[1
]}

Körnich, H ^{[1
]}

Hoffmann, P ^{[1
]}

Rapp, M ^{[1
]}

机构：

[1] Leibniz Inst Atmospher Phys, D-18225 Kuhlungsborn, Germany

来源：

GEOPHYSICAL RESEARCH LETTERS | 2004年 / 31卷 / 24期

关键词：

D O I：

10.1029/2004GL019615

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The seasonally and zonally averaged effects of the anomalously strong Rossby-wave activity in austral winter 2002 are estimated by a sensitivity experiment using an idealized general circulation model. The approach focuses on the modulation of gravity-wave saturation via the altered mean winds in the mesosphere and MLT. In the northern summer MLT the effects consist of increased vertical gradients of the mean zonal wind and temperature, as well as downward shifts of the residual circulation and the gravity wave-induced frictional heating. All these signals agree reasonably with observations obtained during the MaCWAVE/MIDAS program 2002.

引用

页码：1 / 4

页数：4

共 19 条

[1]

BALDWIN M, 2003, SPARC NEWSL

[2]

BALDWIN M, 1988, GEOPHYS RES LETT, V25, P3343

[3]

Becker E, 2003, J ATMOS SCI, V60, P103, DOI 10.1175/1520-0469(2003)060<0103:CEOOAL>2.0.CO

[4]

[5]

Becker E, 2001, J ATMOS SCI, V58, P462, DOI 10.1175/1520-0469(2001)058<0462:IBESWA>2.0.CO

[6]

[7]

BECKER E, 2004, IN PRESS J ATMOS SOL

[8]

FLEMING EL, 1990, ADV SPACE RES, V10, P1211

[9] The MaCWAVE/MIDAS rocket and ground-based measurements of polar summer dynamics:: Overview and mean state structure -: art. no. L24S02 [J].

Goldberg, RA ;

Fritts, DC ;

Williams, BP ;

Lübken, FJ ;

Rapp, M ;

Singer, W ;

Latteck, R ;

Hoffmann, P ;

Müllemann, A ;

Baumgarten, G ;

Schmidlin, FJ ;

She, CY ;

Krueger, DA .

GEOPHYSICAL RESEARCH LETTERS, 2004, 31 (24) :1-5

[10] Climatology of the upper mesosphere temperature above South Pole (90°S):: Mesospheric cooling during 2002 -: art. no. 1535 [J].

Hernandez, G .

GEOPHYSICAL RESEARCH LETTERS, 2003, 30 (10)

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