The onset of the West African monsoon simulated in a high‐resolution atmospheric general circulation model with reanalyzed soil moisture fields | Zendy

Yamada T. J. | Zendy; Kanae S. | Zendy; Oki T. | Zendy; Hirabayashi Y. | Zendy

Open Access

The onset of the West African monsoon simulated in a high‐resolution atmospheric general circulation model with reanalyzed soil moisture fields

Author(s) -

Yamada T. J.,

Kanae S.,

Oki T.,

Hirabayashi Y.

Publication year - 2011

Publication title -

atmospheric science letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.951

H-Index - 45

ISSN - 1530-261X

DOI - 10.1002/asl.367

Subject(s) - intertropical convergence zone , climatology , general circulation model , environmental science , atmospheric circulation , monsoon , atmospheric model , atmosphere (unit) , moisture , atmospheric sciences , meteorology , geology , precipitation , geography , climate change , oceanography

The simulation of the onset of the West African monsoon (WAM), associated with the northward shift of the Intertropical Convergence Zone (ITCZ) occurring in May, June, and July, is a challenging task for atmospheric general circulation models (AGCMs), because of complex water and energy balance through the land‐atmosphere interaction as well as atmospheric processes. We provide evidence that a combination of state‐of‐the‐art global fields of reanalyzed soil moisture anomalies and a sufficiently high‐resolution (∼50 km) AGCM produces a successful simulation of the northward shift of the ITCZ and the following onset of the WAM in July. Copyright © 2011 Royal Meteorological Society

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