The influence of spatial variability of boundary-layer moisture on tropical continental squall lines

Quarterly Journal of the Royal Meteorological Society

Volumn 129, Issue 589 PART C, 2003, Pages 1101-1121

  Clark, D B ^a   Taylor, C M ^a   Thorpe, A J ^b   Harding, R J ^a   Nicholls, M E ^c  

^a CENTRE FOR ECOLOGY AND HYDROLOGY   (United Kingdom)

^b UNIVERSITY OF READING   (United Kingdom)

^c Veterinary Dentistry and Oral Surgery   (United States)

Author keywords

Cloud resolving model; Land atmosphere interactions; Rainfall Sahel

Indexed keywords

ATMOSPHERIC HUMIDITY; BOUNDARY LAYERS; COMPUTER SIMULATION; FEEDBACK; RAIN; RANDOM PROCESSES; STORMS;

CONVECTIVE CELLS;

MOISTURE;

BOUNDARY LAYER; FEEDBACK MECHANISM; HUMIDITY; RAINFALL; SQUALL LINE;

EID: 0037255680     PISSN: 00359009     EISSN: None     Source Type: Journal    
DOI: 10.1256/qj.02.122     Document Type: Article

References (34)

1. Avissar, R. and Schmidt, T. 1998 An evaluation of the scale at which ground-surface heat flux patchiness affects the convective boundary layer using large-eddy simulations. J. Atmos. Sci., 55, 2666-2689
2. Balaji, V., Redelsperger, J.-L. and Klassen, G. P. 1993 Mechanisms for the mesoscale organisation of tropical cloud clusters in GATE Phase III. Part I: Shallow cloud bands. J. Atmos. Sci., 50, 3571-3589
3. Betts, A. K. and Ball, J. H. 1998 FIFE surface climate and site-average dataset 1987-1989. J. Atmos. Sci., 55, 1091-1108
4. Caniaux, G., Redelsperger, J.-L. and Lafore, J. P. 1994 A numerical study of the stratiform region of a fast-moving squall line. Part 1: general description and water and heat budgets. J. Atmos. Sci., 51, 2046-2074
5. Caniaux, G., Lafore, J. P. and Redelsperger, J.-L. 1995 A numerical study of the stratiform region of a fast-moving squall line. Part II: relationship between mass, pressure and momentum fields. J. Atmos. Sci., 52, 331-352
6. Chalon, J. P., Jaubert, G., Roux, F. and Lafore, J. P. 1988 The West African squall line observed on 23 June 1981 during COPT 81: Mesoscale structure and transports. J. Atmos. Sci., 45, 2744-2763
7. Chang, C.-Y. and Yoshizaki, M. 1993 Three-dimensional modelling study of squall lines observed in COPT81. J. Atmos. Sci., 50, 161-183
8. D'Amato, N. and Lebel, T. 1998 On the characteristics of the rainfall events in the Sahel with a view to the analysis of climatic variability. Int. J. Climatol., 18, 955-974
9. Eltahir, E. A. B. 1998 A soil moisture-rainfall feedback mechanism. 1: Theory and observations. Water Resour. Res., 34, 765-776
10. Fovell, R. G. and Dailey, P. S. 1995 The temporal behaviour of numerically simulated multicell-type storms. Part I: Modes of behaviour. J. Atmos. Sci., 52, 2073-2095
11. Fovell, R. G. and Tan, P.-H. 1998 The temporal behaviour of numerically simulated multicell-type storms. Part II: The convective cell life cycle and cell regeneration. Mon. Weather Rev., 126, 551-577
12. Houze, R. A. Jr. 1993 Cloud dynamics. Academic Press, San Diego
13. Lafore, J.-P. and Moncrieff, M. W. 1989 A numerical investigation of the organization and interaction of the convective and stratiform regions of tropical squall lines. J. Atmos. Sci., 46, 521-544
14. Lin, Y.-L. and Joyce, L. E. 2001 A further study of the mechanisms of cell regeneration, propagation, and development within two-dimensional multicell storms. J. Atmos. Sci., 58, 2957-2988
15. Liu, C., Moncrieff, M. W. and Zipser, E. J. 1997 Dynamical influence of microphysics in tropical squall lines: A numerical study. Mon. Weather Rev., 125, 2193-2210
16. Mohr, K. I. and Zipser, E. J. 1996 Mesoscale convective systems defined by their 85-GHz ice scattering signature: Size and intensity comparison over tropical oceans and continents. Mon. Weather Rev., 124, 2417-2437
17. Nicholls, M. E. 1987 A comparison of the results of a two-dimensional numerical- simulation of a tropical squall line with observations. Mon. Weather Rev., 115, 3055-3077
18. Nicholls, M. E. and Weissbluth, M. J. 1988 A comparison of two-dimensional and quasi-3-dimensional simulations of a tropical squall line. Mon. Weather Rev., 116, 2437-2452
19. Nicholls, M. E., Johnson, R. H. and Cotton, W. R. 1988 The sensitivity of two-dimensional simulations of tropical squall lines to environmental profiles. J. Atmos. Sci., 45, 3625-3649
20. Parker, D. J. and Burton, R. R. 2002 The two-dimensional response of a tropical jet to propagating lines of convection. J. Atmos. Sci., 59, 1263-1273
21. Pielke, R. A., Cotton, W. R., Walko, R. L., Tremback, C. J., Lyons, W. A., Grasso, L. D., Nicholls, M. E., Moran, M. D., Wesley, D. A., Lee, T. J., and Copeland, J. H. 1992 A comprehensive meteorological modeling system-RAMS. Meteorol. Atmos. Phys., 49, 69-91
22. Raupach, M. R. 1991 Vegetation-atmosphere interaction in homogeneous and heterogeneous terrain-some implications of mixed-layer dynamics. Vegetatio, 91, 105-120
23. Redelsperger, J.-L. and Lafore, J.-P. 1988 A three-dimensional simulation of a tropical squall line: Convective organization and thermodynamic vertical transport. J. Atmos. Sci., 45, 1334-1356
24. Redelsperger, J.-L., Brown, P. R. A., Guichard, F., Hoff, C., Kawasima, M., Lang, S., Montmerle, T., Nakamura, K., Saito, K., Seman, C., Tao, W. K and Donner, L. J. 2000 A GCSS model intercomparison for a tropical squall line observed during TOGA-COARE. I: Cloud-resolving models. Q. J. R. Meteorol. Soc., 126, 823-863
25. Roux, F. 1988 The West African squall line observed on 23 June 1981 during COPT 81: Kinematics and thermodynamics of the convective region. J. Atmos. Sci., 45, 406-426
26. Segal, M. and Arritt, R. W. 1992 Nonclassical mesoscale circulations caused by surface sensible heat-flux gradients. Bull. Am. Meteorol. Soc., 73, 1593-1604
27. Shaw, B. L., Pielke, R. A. and Ziegler, C. L. 1997 A three-dimensional numerical simulation of a Great Plains dryline. Mon. Weather Rev., 125, 1489-1506
28. Shuttleworth, W. J. 1988 Macrohydrology-the new challenge for process hydrology. J. Hydrol., 100, 31-56
29. Sommeria, G. and Testud, J. 1984 COPT-81-a field experiment designed for the study of dynamics and electrical-activity of deep convection in continental tropical regions. Bull. Am. Meteorol. Soc., 65, 4-10
30. Taylor, C. M. and Lebel, T. 1998 Observational evidence of persistent convective-scale rainfall patterns. Mon. Weather Rev., 126, 1597-1607
31. Taylor, C. M., Saïd, F. and Lebel, T. 1997 Interactions between the land surface and mesoscale rainfall variability during HAPEX-Sahel. Mon. Weather Rev., 125, 2211-2227
32. Thorncroft, C. D., Parker, D. J., Burton, R. R., Diop, M., Ayers, J. H., Barjat, H., Dumelow, R., Kindred, D. R., Price, N. M., Taylor, C. M. and Tompkins, A. M. 2003 The JET2000 experiment: Aircraft observations of the African easterly jet and African easterly waves. Bull. Am. Meteorol. Soc. (in press)
33. Tripoli, G. J. and Cotton, W. R. 1982 The Colorado State University three-dimensional cloud/mesoscale model-1982. Part I: General theoretical framework and sensitivity experiments. J. Rech. Atmos., 16, 185-219
34. Walko, R. L., Cotton, W. R., Meyers, M. P. and Harrington, J. Y. 1995 New RAMS cloud microphysics parameterization. I: The single- moment scheme. Atmos. Res., 38, 29-62