Comparison between two case studies of developing and nondeveloping African easterly waves during NAMMA and AMMA/SOP-3: Absolute vertical vorticity budget

Monthly Weather Review

Volumn 138, Issue 4, 2010, Pages 1420-1445

  Arnault, Joël ^a   Roux, Frank ^a  

^a UNIVERSITÉ DE TOULOUSE   (France)

Author keywords

atmospheric; Hurricanes; Tropical cyclones; Vorticity; Waves

Indexed keywords

ABSOLUTE VORTICITY; AFRICAN EASTERLY WAVES; CONVECTIVE ACTIVITY; CONVECTIVE SYSTEMS; CYCLONIC VORTICITY; HORIZONTAL ADVECTION; MULTI-DISCIPLINARY ANALYSIS; NATIONAL AERONAUTICS AND SPACE ADMINISTRATIONS; NUMERICAL MODELS; OCEANIC TRANSITION; SIMILARITIES AND DIFFERENCES; TROPICAL CYCLONE; VERTICAL ADVECTION; VERTICAL TRANSPORTS; VERTICAL VORTICITY; VORTICITY WAVES;

ADVECTION; BUDGET CONTROL; COASTAL ZONES; COMPUTER SIMULATION; HURRICANES; NASA; STORMS;

VORTICITY;

ATMOSPHERIC CONVECTION; CONVECTIVE SYSTEM; DISTURBANCE; EASTERLY WAVE; HURRICANE; NUMERICAL MODEL; OBSERVATIONAL METHOD; POTENTIAL VORTICITY; TROPICAL CYCLONE;

EID: 77955547288     PISSN: 00270644     EISSN: None     Source Type: Journal    
DOI: 10.1175/2009MWR3120.1     Document Type: Article

References (31)

1. Agusti-Panareda, A., and Coauthors, 2009: Radiosonde humidity bias correction over the West African region for the special AMMA reanalysis at ECMWF. Quart. J. Roy. Meteor. Soc., 135, 595-617.
2. Arnault, J., and F. Roux, 2009: Case study of a developing African easterly wave during NAMMA: An energetic point of view. J. Atmos. Sci., 66, 2991-3020.
3. Arnault, J., and F. Roux, 2010: Failed cyclogenetic evolution of a West African monsoon perturbation observed during AMMA SOP-3. J. Atmos. Sci., in press.
4. Avila, L. A., and G. B. Clark, 1989: Atlantic tropical systems of 1988. Mon. Wea. Rev., 117, 2260-2265.
5. Berry, G. J., and C. Thorncroft, 2005: Case study of an intense African easterly wave. Mon. Wea. Rev., 133, 752-766.
6. Bougeault, P., and P. Lacarrére, 1989: Parameterization of orographyinduced turbulence in a meso-beta-scale model. Mon. Wea. Rev., 117, 1872-1890.
7. Bousquet, O., and M. Chong, 2000: The oceanic mesoscale convective system and associated mesovortex observed 12 December 1992 during TOGA-COARE. Quart. J. Roy. Meteor. Soc., 126, 189-211.
8. Brandes, E. A., 1990: Evolution and structure of the 6-7 May 1985 mesoscale convective system and associated vortex. Mon. Wea. Rev., 118, 109-127.
9. Burpee, R. W., 1972: The origin and structure of easterly waves in the lower troposphere of North Africa. J. Atmos. Sci., 29, 77-90.
10. Carlson, T. B., 1969a: Synoptic histories of three African disturbances that developed into Atlantic hurricanes. Mon. Wea. Rev., 97, 256-288.
11. Carlson, T. B., 1969b: Some remarks on African disturbances and their progress over the tropical Atlantic. Mon. Wea. Rev., 97, 716-726.
12. Chaboureau, J.-P., and J.-P. Lafore, 2002: Mesoscale model cloud scheme assessment using satellite observations. J. Geophys. Res., 107, 4301, doi:10.1029/2001JD000714.
13. Chen, S. S., andW.M. Frank, 1993:Anumerical study of the genesis of extratropical convective vortices. Part I: Evolution and dynamics. J. Atmos. Sci., 50, 2401-2426.
14. Erickson, C. O., 1963: An incipient hurricane near the West African coast. Mon. Wea. Rev., 91, 61-68.
15. Fritsch, J. M., J. D. Murphy, and J. S. Kain, 1994: Warm-core vortex amplification over land. J. Atmos. Sci., 51, 1780-1807.
16. Gal-Chen, T., and R. C. J. Sommerville, 1975: On the use of a coordinate transformation for the solution of the Navier-Stokes equations. J. Comput. Phys., 17, 209-228.
17. Gregory, D., J.-J. Morcrette, C. Jakob, A. M. Beljaars, and T. Stockdale, 2000: Revision of convection, radiation and cloud schemes in the ECMWF model. Quart. J. Roy. Meteor. Soc., 126, 1685-1710.
18. Houze, R. A., Jr., 1993: Cloud Dynamics. Academic Press, 573 pp.
19. Keenan, T. D., and S. A. Rutledge, 1993: Mesoscale characteristics of monsoonal convection and associated stratiform precipitation. Mon. Wea. Rev., 121, 352-374.
20. Knievel, J. C., and R. H. Johnson, 2003: A scale-discriminating vorticity budget for a mesoscale vortex in a midlatitude, continental mesoscale convective system. J. Atmos. Sci., 60, 781-794.
21. Lafore, J. P., and Coauthors, 1998: The Méso-NH Atmospheric Simulation System. Part I: Adiabatic formulation and control simulations. Ann. Geophys., 16, 90-109.
22. Lin, Y.-L., K. E. Robertson, and C. M. Hill, 2005: Origin and propagation associated with an African easterly wave as a precursor of Hurricane Alberto (2000).Mon.Wea. Rev., 133, 3276-3298.
23. Menard, R. D., and J. M. Fritsch, 1989: A mesoscale convective complex-generated inertially stable warm core vortex. Mon. Wea. Rev., 117, 1237-1261.
24. Pinty, J. P., and P. Jabouille, 1998: A mixed-phase cloud parameterization for use in mesoscale non-hydrostatic model: Simulations of a squall line and of orographic precipitations. Preprints, Conf. on Cloud Physics, Everett, WA, Amer. Meteor. Soc., 217-220.
25. Redelsperger, J.-L., C. D. Thorncroft, A. Diedhiou, T. Lebel, D. Parker, and J. Polcher, 2006: African Monsoon, Multidisciplinary Analysis (AMMA): An international research project and field campaign. Bull. Amer.Meteor. Soc., 87, 1739-1746.
26. Reed, R. J., D. C. Norquist, and E. E. Recker, 1977: The structure and properties of African wave disturbances as observed during phase III of GATE. Mon. Wea. Rev., 105, 317-333.
27. Rogers, R. F., and J. M. Fritsch, 2001: Surface cyclogenesis from convectively driven amplification of midlevel mesoscale convective vortices. Mon. Wea. Rev., 129, 605-637.
28. Saunders, R., M. Matricardi, P. Brunel, S. English, P. Bauer, U. O'Keeffe, P. Francis, and P. Rayer, 2005: RTTOV-8 Science and validation report. NWP SAF Tech. Rep., 41 pp.
29. Trier, S. B., W. C. Skamarock, and M. A. Lemone, 1997: Structure and evolution of the 22 February 1993 TOGA COARE squall line: Organization mechanisms inferred from numerical simulation. J. Atmos. Sci., 54, 386-407.
30. Van Sang, N., R. K. Smith, and M. T. Montgomery, 2008: Tropicalcyclone intensification and predictability in three dimensions. Quart. J. Roy. Meteor. Soc., 134, 563-582.
31. Zipser,E. J., andCoauthors, 2009: The Saharan air layer and the fate of African easterly waves-NASA's AMMA field study of tropical cyclogenesis. Bull. Amer. Meteor. Soc., 90, 1137-1156.