Mathieu Rouault et al: Top

NCEP Humidity flux 2
A greater tropical contribution of moisture to the storm region was evident at the 700 h-Pa level (13 of 14 December) although its magnitude of 50 gm/kgs was still considerably less than that originating near the surface of the greater Agulhas Current system (140 gm/kgs). At 500 h-Pa, there was negligible moisture available and the winds reflect a westerly wave motion associated with the passage of the midlevel trough. Although there were large amounts of tropical moisture available at the 700 h-Pa, the relatively weak winds were unable to advect much of it into the storm region.

NCEP Humidity flux 2

A greater tropical contribution of moisture to the storm region was evident at the 700 h-Pa level (13 of 14 December) although its magnitude of 50 g*m/kg*s was still considerably less than that originating near the surface of the greater Agulhas Current system (140 g*m/kg*s). At 500 h-Pa, there was negligible moisture available and the winds reflect a westerly wave motion associated with the passage of the midlevel trough. Although there were large amounts of tropical moisture available at the 700 h-Pa, the relatively weak winds were unable to advect much of it into the storm region.

Fig. 12: NCEP daily moisture flux values (g*m/kg*s) for levels 700 h-Pa and 500 h-Pa from 13 until the 16 December 1998.

Humidity flux 2| Humidity flux vertical sections| Conclusion| References Thanks]

Email: rouault@physci.uct.ac.za

Forum

WBC Virtual Poster Session