Impact of boundary-layer processes on near-surface turbulence within the West African monsoon

Boundary-Layer Meteorology

Volumn 136, Issue 1, 2010, Pages 1-23

  Lohou, Fabienne ^a   Saïd, Frédérique ^a   Lothon, Marie ^a   Durand, Pierre ^a   Serça, Dominique ^a  

^a LABORATOIRE D AÉROLOGIE   (France)

Author keywords

Entrainment; Humidity spatial variability; Monin Obukhov similarity theory; West African monsoon

Indexed keywords

BUOYANT CONVECTION; HIGH FREQUENCY MEASUREMENTS; MONIN-OBUKHOV SIMILARITY THEORY; MULTI-DISCIPLINARY ANALYSIS; NEAR-SURFACE; PARAMETERISATION; SAHARAN AIR LAYERS; SEASONAL CYCLE; SPATIAL VARIABILITY; SURFACE TURBULENCE; TEMPERATURE JUMP; TURBULENT CHARACTERISTICS; UPPER LIMITS; WEST AFRICAN MONSOON;

AIR ENTRAINMENT; BOUNDARY LAYER FLOW; BOUNDARY LAYERS; BUOYANCY; METEOROLOGY; MOISTURE; PLANETARY SURFACE ANALYSIS; TURBULENCE;

ATMOSPHERIC THERMODYNAMICS;

ENTRAINMENT; HUMIDITY; MONSOON; SEASONAL VARIATION; SPATIAL VARIATION; TURBULENCE; TURBULENT BOUNDARY LAYER;

EID: 77950797431     PISSN: 00068314     EISSN: None     Source Type: Journal    
DOI: 10.1007/s10546-010-9493-0     Document Type: Article

References (38)

1. Andreas EL, Hill RJ, Gosz JR, Moore DI, Otto WD, Sarma AD (1998) Statistics of surface-layer turbulence over terrain with metre-scale heterogeneity. Boundary-Layer Meteorol 86: 397-408.
2. Angevine WM, White AB, Avery SK (1994) Boundary-layer depth and entrainment zone characterization with a boundary-layer profiler. Boundary-Layer Meteorol 68: 375-385.
3. Betts AK (2000) Idealized model for equilibrium boundary layer over land. J Hydrometeorol 1: 507-523.
4. Bock O, Bouin MN, Doerflinger E, Collard P, Masson F, Meynadier R, Nahmani S, Koitié M, Gaptia Lawan Balawan K, Didé F, Ouedraogo D, Pokperlaar S, Ngamini JB, Lafore JP, Janicot S, Guichard F, Nuret M (2008) West African Monsoon observed with ground-based GPS receivers during African Monsoon Multidisciplinary Analysis (AMMA). J Geophys Res 113: D21105. doi: 10. 1029/2008JD010, 327.
5. Canut G, Lothon M, Saïd F, Lohou F (2010) Observation of entrainment at the interface between monsoon flow and saharan air layer. Q J Roy Meteorol Soc. doi: 10. 1002/qj. 471.
6. Conzemius RJ, Fedorovich E (2008) A case study of convective boundary layer development during IHOP2002: numerical simulations compared to observations. Mon Weather Rev 136: 2305-2320.
7. Couvreux F, Guichard F, Redelsperger JL, Masson V (2007) Negative water vapour skewness and dry tongues in the convective boundary layer: observations and LES budget analysis. Boundary-Layer Meteorol 123: 269-294.
8. Crum TD, Stull RB (1987) Field measurements of the amount surface layer air versus height in the entrainment zone. J Atmos Sci 44: 2743-2753.
9. de Arellano JVG, Gioli B, Miglietta F, Jonker HJJ, Baltink HK, Hutjes RWA, Holtslag AAM (2004) Entrainment process of carbon dioxide in the atmospheric boundary layer. J Geophys Res 109: D18110.
10. De Roode SR, Duynkerke PG, Jonker HJJ (2004) Large-eddy simulation: how large is large enough?. J Atmos Sci 61: 403-421.
11. Detto M, Katul G, Mancini M, Montaldo N, Albertson JD (2008) Surface heterogeneity and its signature in higher-order scalar similarity relationships. Agric For Meteorol 148: 902-916.
12. Doviak RJ, Zrnic DS (1993) Doppler radar and weather observations. Academic Press, San Diego.
13. Druilhet A, Frangi J, Guedalia D, Fontan J (1983) Experimental studies of the turbulent structure parameters of the convective boundary layer. J Clim Appl Meteorol 22: 594-608.
14. Durand P, Thoumieux F, Lambert D (2000) Turbulent length-scales in the marine atmospheric mixed layer. Q J Roy Meteorol Soc 126: 1889-1912.
15. Jacoby-Koaly S, Campistron B, Bernard S, Bénech B, Girard-Ardhuin F, Dessens J (2002) Turbulent dissipation rate in the boundary layer via UHF wind profiler Doppler spectral width measurements. Boundary-Layer Meteorol 103: 361-389.
16. Janicot S, Sultan B (2007) The large-scale context of the West African Monsoon in 2006. Exch CLIVAR Newslett 12(2): 11-17.
17. Jonker HJJ, Duynkerke PG, Cuijpers JWM (1999) Mesoscale fluctuations in scalars generated by boundary layer convection. J Atmos Sci 56: 801-808.
18. Jonker HJJ, de Arellano JVG, Duynkerke PG (2004) Characteristic length scale of reactive species in a convective boundary layer. J Atmos Sci 61: 41-56.
19. Kaimal JC, Finnigan JJ (1994) Atmospheric boundary layer flows. Oxford University Press, New York, p 289.
20. Kalapureddy M, Lothon M, Campistron B, Lohou F, Saïd F (2010) Wind profiler analysis of the African easterly jet in relation with the boundary layer and the Saharan heat-low. Q J Roy Meteorol Soc. doi: 10. 1002/qj. 494.
21. Lafore JP, Flamant C, Giraud F, Guichard F, Knipperts P, Mahfouf JF, Mascart P, Williams E (2010) Introduction to the AMMA special issue on: advances in understanding processes over west Africa through the AMMA field campaign. Q J Roy Meteorol Soc. doi: 10. 1002/qj. 583.
22. Lenschow DH, Stankov BB (1986) Length scales in the convective boundary layer. J Atmos Sci 43: 1198-1209.
23. Lenschow DH, Wulfmeyer V, Senff C (2002) Measuring second- through fourth-order moments in noisy data. J Atmos Ocean Technol 17: 1330-1347.
24. Lothon M, Couvreux F, Donier S, Guichard F, Lacarrère P, Noilhan J, Saïd F (2007) Impact of the coherent eddies on the airborne measurements of vertical turbulent fluxes. Boundary-Layer Meteorol 124: 425-447.
25. Lothon M, Saïd F, Lohou F, Campistron B (2008) Observation of the diurnal cycle in the low troposphere of west Africa. Mon Weather Rev 136: 3477-3500.
26. Lumley JL, Panofsky HA (1964) The structure of atmospheric turbulence. Inter-Science, New York, p 239.
27. Mahrt L (1991) Boundary-layer moisture regimes. Q J Roy Meteorol Soc 117: 151-176.
28. Moene AF, Michels BI, M HA (2006) Scaling variances of scalars in a convective boundary layer under different entrainment regimes. Boundary-Layer Meteorol 120: 257-274.
29. Nicholls S, LeMone MA (1980) The fair boundary layer in gate: the relationship of subcloud fluxes and structure to the distribution and enhancement of the cumulus cloud. J Atmos Sci 37: 2051-2067.
30. Parker DJ, Burton RR, Diongue-Niang A, Ellis RJ, Felton MA, Taylor CM, Thorncroft CD, Bessemoulin P, Tompkins AM (2005) The diurnal cycle of the West African Monsoon circulation. Q J Roy Meteorol Soc 131: 2839-2860.
31. Ramier D, Boulain N, Cappelaere B, Timouk F, Rabanit M, Lloyd CR, Boubkraoui S, Métayer F, Descroix L, Wawrzyniak V (2009) Towards an understanding of coupled physical and biological processes in the cultivated Sahel-1. Energy and water. J Hydrol 375: 204-216.
32. Redelsperger J, Thorncroft C, Diedhiou A, Lebel T, Parker DJ, Polcher J (2006) African Monsoon Multidisciplinary Analysis (AMMA): an international research project and field campaign. Bull Am Meteorol Soc 87: 1739-1746.
33. Saïd F, Canut G, Durand P, Lohou F, Lothon M (2010) Seasonal evolution of the boundary-layer turbulence measured by aircraft during AMMA 2006 special observation period. Q J Roy Meteorol Soc. doi: 10. 1002/qj. 475.
34. Santanello JA, Friedl MA, Ek MB (2007) Convective planetary boundary layer interactions with the land surface at diurnal time scale: diagnostics and feedbacks. J Hydrol 8: 1082-1097.
35. Stull RB (1988) An introduction to boundary layer meteorology. Kluwer, Dordrecht, p 666.
36. Sultan B, Janicot S (2003) The West African Monsoon dynamics. Part II: the 'pre-onset' and the 'onset' of the summer monsoon. J Clim 16: 3407-3427.
37. Timouk F, Kergoat L, Mougin E, Lloyd CR, Cohard JM, de Rosnay P, Hiernaux P, Demarez V, Taylor CM (2009) Response of surface energy balance to water regime and vegetation development in a Sahelian landscape. J Hydrol 375: 178-189.
38. Webb E, Pearman G, Leuning R (1980) Correction of flux measurements for density effects due to heat and water-vapor transfer. Q J Roy Meteorol Soc 106: 85-100.