the Barbados Oceanographic and Meteorological Experiment

Davidson, Ben

doi:10.1175/1520-0477-49.9.928

Cited by 17 publications

(10 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the trades have been at the focus of several extensive field experiments since then, such as BOMEX (Barbados Oceanographic and Meteorological EXperiment, Davidson, 1968;Holland and Rasmusson, 1973), ATEX (Atlantic Trade wind EXperiment, Augstein et al, 1973), and more recently RICO (Rain In Cumulus over the Ocean, Rauber et al, 2007), or smaller campaigns such as BACEX (Barbados Aerosol Cloud EXperiment) in 2010, several aspects of trade wind cumuli -in particular small-scale processes such as the role of cloud turbulence -have not been investigated due to measurement limitations, and are still not fully understood.…”

Section: Introductionmentioning

confidence: 99%

The fine-scale structure of the trade wind cumuli over Barbados – an introduction to the CARRIBA project

et al. 2013

View full text Add to dashboard Cite

Abstract. The CARRIBA (Cloud, Aerosol, Radiation and tuRbulence in the trade wInd regime over BArbados) project, focused on high resolution and collocated measurements of thermodynamic, turbulent, microphysical, and radiative properties of trade wind cumuli over Barbados, is introduced. The project is based on two one-month field campaigns in November 2010 (climatic wet season) and April 2011 (climatic dry season). Observations are based on helicopterborne and ground-based measurements in an area of 100 km 2 off the coast of Barbados. CARRIBA is accompanied by long-term observations at the Barbados Cloud Observatory located at the East coast of Barbados since early in 2010 and which provides a longer-term context for the CARRIBA measurements. The deployed instrumentation and sampling strategy are presented together with a classification of the meteorological conditions. The two campaigns were influenced by different air masses advected from the Caribbean area, the Atlantic Ocean, and the African continent which led to distinct aerosol conditions. Pristine conditions with low aerosol particle number concentrations of ∼100 cm 3 were alternating with periods influenced by Saharan dust or aerosol from biomass burning resulting in comparably high number concentrations of ∼ 500 cm 3 . The biomass burning aerosol was originating from both the Caribbean area and Africa. The shallow cumulus clouds responded to the different aerosol conditions with a wide range of mean droplet sizes and number concentrations. Two days with different aerosol and cloud microphysical properties but almost identical meteorological conditions have been analyzed in detail. The differences in the droplet number concentration and droplet sizes appear not to show any significant change for turbulent cloud mixing, but the relative roles of droplet inertia and sedimentation in initiating coalescence, as well as the cloud reflectivity, do change substantially.

show abstract

Section: Introductionmentioning

confidence: 99%

The fine-scale structure of the trade wind cumuli over Barbados – an introduction to the CARRIBA project

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The experiment, designed by Davidson (1968), was conducted during May and June 1969 over the area east of Barbados ( fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Measurements of the Atmospheric Mass, Energy, and Momentum Budgets Over a 500-Kilometer Square of Tropical Ocean

Holland¹,

Rasmusson²

1973

Mon. Wea. Rev.

242

196

View full text Add to dashboard Cite

The atmospheric budgets of mass, water vapor, heat, momentum, and mechanical energy have been analyzed for a 5-day undisturbed period (June 22-26, 1969) during the Barbados Oceanographic and Meteorological Experiment (BOMEX). Data were obtained from rawinsondes launched every 1% hr from the four corner ships of the BOMEX array. Computations were limited to the lowest 500 mb within a 500-km square centered a t 15'N, 56'30'W. The mass budget is characterized by mean, low-level divergence and downward motion. Maximum divergence (5 X 10-8 s-l) is found approximately 80 mb above the surface and maximum subsidence near the base of the trade-wind inversion. The computed average evaporation is 6.0 mm/day. The computations show an upward flux of moisture through the trade inversion by subgrid-scale eddies, but the mean downward flux dominates, leading to a net downward transfer of moisture through the trade inversion. A surface stress of 0.065 Newtons (N).m-z is computed from the momentum balance with the top of the friction layer approximately 130 mb above the surface. Computed frictional loss of grid-scale kinetic energy within the boundary layer is 0.8 W.m+. Heat balance computations indicate a Bowen ratio of approximately 0.1. Comparison of profiles of subgrid-scale moisture flux and nonradiative diabatic heating suggests that condensation and evaporation processes associated with the development and dissipation of trade-wind cumulus can make a significant contribution to the heat balance of the cloud and trade inversion layers.

show abstract

“…5) There-is now evidence that a complex field program requiring coordination of aircraft, ship, and buoy observations can be planned and car-I ried out successfully (23). 6) Development of the Center for Experimental Design and Data Analysis (CEDDA) (23) provides a vital capability for planning and for data analysis in other large field programs.…”

Section: ) Vertical Vapor Flux On the Syn-mentioning

confidence: 99%

“…BOMEX provided the first ophich government, portunity to secure these data on a astrial personnel comprehensive scale, although pilot together. Further studies had been carried out as part of rns of the atmothe International Indian Ocean Expediynamical system tion 'by the University of Washington n order to extend and the Woods Hole Oceanographic prediction, to an-Institution in 1964 (4) (6), and progress reports tnt, therefore, to have -been published by Kuettner and ntific accomplish-Holland (7) and Holland (8). nd to assess the BOMEX was conceived in 1961; an that may be useinitial appraisal of results is possible in ure investigations.…”

mentioning

confidence: 99%

BOMEX: An Appraisal of Results

Fleagle

1972

Science

View full text Add to dashboard Cite

the Barbados Oceanographic and Meteorological Experiment

Cited by 17 publications

References 2 publications

The fine-scale structure of the trade wind cumuli over Barbados – an introduction to the CARRIBA project

The fine-scale structure of the trade wind cumuli over Barbados – an introduction to the CARRIBA project

Measurements of the Atmospheric Mass, Energy, and Momentum Budgets Over a 500-Kilometer Square of Tropical Ocean

BOMEX: An Appraisal of Results

Contact Info

Product

Resources

About