Understanding African easterly waves: a moist singular vector approach

被引：2

作者：

Cornforth, Rosalind J. ^{[1
]}

Hoskins, Brian J. ^{[2
]}

机构：

[1] Univ Reading, Dept Meteorol, Reading RG6 6BB, Berks, England

[2] Univ London Imperial Coll Sci Technol & Med, Grantham Inst Climate Change, London, England

来源：

ATMOSPHERIC SCIENCE LETTERS | 2009年 / 10卷 / 03期

关键词：

African easterly waves; singular vectors; moist; AMMA; ECMWF; PHYSICAL PROCESSES; TROPICAL CYCLONES; GROWTH; DISTURBANCES; VARIABILITY; DYNAMICS; CISK;

D O I：

10.1002/asl.231

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：

Moist singular vectors (MSV) have been applied successfully to predicting mid-latitude storms growing in association with latent heat of condensation. Tropical cyclone sensitivity has also been assessed. Extending this approach to more general tropical weather systems here, MSVs are evaluated for understanding and predicting African easterly waves, given the importance of moist processes in their development. First results, without initial moisture perturbations, suggest MSVs may be used advantageously. Perturbations bear similar structural and energy profiles to previous idealised non-linear studies and observations. Strong sensitivities prevail in the metrics and trajectories chosen, and benefits of initial moisture perturbations should be appraised. Copyright (C) 2009 Royal Meteorological Society

引用

页码：185 / 191

页数：7

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