Seasonal cycle of nonmigrating diurnal tides in the MLT region due to tropospheric heating rates from the NCEP/NCAR Reanalysis Project

被引：10

作者：

Forbes, J. M. ^{[1
]}

Hagan, M. E. ^{[2
]}

Zhang, X. ^{[1
]}

机构：

[1] Univ Colorado, Dept Aerosp Engn Sci, UCB 429, Boulder, CO 80309 USA

[2] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA

来源：

ADVANCES IN SPACE RESEARCH | 2007年 / 39卷 / 08期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

diurnal tides; tropospheric heating rates; global scale wave model; NCEP/NCAR reanalysis project;

D O I：

10.1016/j.asr.2003.09.076

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The Global Scale Wave Model (GSWM), combined with a climatological model of zonal mean winds and tropospheric heating rates from the NCEP/NCAR Reanalysis Project, is used to investigate three nonmigrating tidal oscillations of importance to the MLT region: the eastward-propagating diurnal tide with zonal wavenumber s = -3 (DE3), the standing (s = 0) diurnal oscillation (DO), and the westward-propagating tide with s = 2 (DW2). Monthly climatological winds associated with these oscillations are compared with observations, and the relative importance of mean winds, dissipation and source distributions in determining seasonal-latitudinal structures are explored. Major inconsistencies are revealed, motivating the need for models that realistically address troposphere heating and nonlinear tide-planetary wave interactions as tidal sources. (C) 2006 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：1347 / 1350

页数：4

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