Variability of static stability over West Africa during Northern summer 1979-2005

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IDL-48764.pdf (1.55 MB)

Date

2010

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Publisher

Elsevier

Abstract

The occurrence and duration of precipitations in West Africa are a function of several local atmospheric processes and conditions. The tropospheric static stability is one of these processes and conditions that determine whether the growing season atmosphere over West Africa is conducive to convection, and thus to rainfall. This study has investigated the spatial variability of static stability in West Africa using 27 years of NCEP/NCAR reanalysis and satellite data. Six stability measures were examined. The relationship of the stability measure field to the convection, represented by Outgoing Longwave Radiation (OLR) field, was investigated by means of a Canonical Correlation Analysis (CCA).

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Keywords

CONVECTION, STATIC STABILITY MEASURES, WEST AFRICAN MONSOON, TROPOSPHERE, STATISTICAL DATA, CANONICAL CORRELATION ANALYSIS, CLIMATE CHANGE

Citation

URI

http://hdl.handle.net/10625/48764

DOI

Collections

IDRC Research Results / Résultats de recherches du CRDI
2010-2019 / Années 2010-2019
Research Results (CCAA) / Résultats de recherches (ACCA)