African easterly waves in 30‐day high‐resolution global simulations: A case study during the 2006 NAMMA period

摘要: [1] In this study, extended‐range (30‐day) high‐resolution simulations with the NASA global mesoscale model are conducted to simulate initiation and propagation of six consecutive African easterly waves (AEWs) from late August September 2006 their association hurricane formation. It is shown that statistical characteristics individual AEWs realistically simulated larger errors in 5th 6th AEWs. Remarkable a mean jet (AEJ) also obtained. Nine additional 30‐day experiments suggest although land surface processes might contribute predictability AEJ AEWs, detailed evolution still depend on accurate representation dynamic initial conditions time‐varying nonlinear interactions. Of interest potential extend lead time for predicting formation (e.g., up 22 days) as 4th AEW simulated. Citation: Shen, B.‐W., W.‐K. Tao, M.‐L. C. Wu (2010), simulations: A case study during NAMMA period, Geophys. Res. Lett., 37, L18803, doi:10.1029/2010GL044355.