Analysis of the Tropical Marine Boundary Layer during GATE Using Acoustic Sounder Data

Gaynor, J. E.; Mandics, P. A.

doi:10.1175/1520-0493(1978)106<0223:aottmb>2.0.co;2

Cited by 33 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is also well understood that the tropical MABL is driven by convection, and the convective transport is the main mechanism that runs the cloud formation in tropics. In the past few decades, ship-borne experiments like Atlantic Trade wind Experiment (ATEX) (Augstein et al, 1974), GARP Atlantic Tropical Experiment (GATE, 1974) (Gaynor and Mandics, 1978), First GARP Global Experiment (FGGE) (Firestone and Albrecht, 1986), Tropical Ocean Global Atmosphere (TOGA) and TOGA Coupled Ocean Atmosphere Response Experiment (TOGA-COARE) provided thermodynamic structure of the trade wind boundary layer over Atlantic and Pacific oceans, and gave insight to the ocean-atmosphere coupling processes (Smith et al, 1996 and references therein;Johnson et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Observations of the thermodynamic structure of marine atmospheric boundary layer over Bay of Bengal, Northern Indian Ocean and Arabian Sea during premonsoon period

Alappattu

Kunhikrishnan

2010

Journal of Atmospheric and Solar-Terrestrial Physics

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Observations of the thermodynamic structure of marine atmospheric boundary layer over Bay of Bengal, Northern Indian Ocean and Arabian Sea during premonsoon period

Alappattu

Kunhikrishnan

2010

Journal of Atmospheric and Solar-Terrestrial Physics

View full text Add to dashboard Cite

“…The question of minimum averaging time for the application of the bulk aerodynamic method with respect to plume influence has been discussed by Gaynor and Mandics (1978). Presumably plume influence had been smoothed and it was the large change in wind speed which occurred in the middle of the run that became the determining factor for Sd.…”

Section: Variation Of Averaging Timementioning

confidence: 99%

The limitations on stress parameterization imposed by intermittency in turbulent flow

Khalsa

1980

Boundary-Layer Meteorol

View full text Add to dashboard Cite

The indirect dissipation technique is used to estimate 1-min averages of friction velocity U* in the surface layer over the tropical ocean. These estimates are compared to estimates of U* obtained using a drag coeficient and the relative difference between the two is examined in relation to stability and averaging time. Plumes and downdrafts are found to be responsible for an anomalous behavior of the drag coefficient estimates. Certain factors relating to plume properties, derived using conditional sampling as described in Khalsa (1980), are shown to be related to the variance between the two estimates of friction velocity. An investigation into the effects of increasing the averaging time reveals that plume spacing, which is dependent on stability, and the mean wind speed determine the minimum time for smoothing the influence of plumes and downdrafts.* Department of Atmospheric Sciences contribution number 513.

show abstract

“…This vertical distribution of F is illustrated clearly by the theoretical results in Figure 2, which are obtained analytically by Kuo (1961) for various values of R in the laminar range. Observations of convection in nature also reveal this feature very clearly (see Gaynor and Mandic, 1978). Observations of convection in nature also reveal this feature very clearly (see Gaynor and Mandic, 1978).…”

Section: General Properties Of High Rayleigh Number Convectionmentioning

confidence: 99%

Power laws of high Rayleigh number convection

Kuo

1979

Boundary-Layer Meteorol

View full text Add to dashboard Cite

Previous theoretical and observational investigations have shown that vertical plumes are formed in the high Rayleigh number convection field over heated horizontal surfaces and that these plumes become unsteady and turbulent when the Rayleigh number is higher than about 20 times its critical value R,. Based on these results, we conclude that the dissipation of kinetic energy takes place mainly in the surface boundary layer in high Rayleigh number laminar convection and mainly in the vertical plumes in turbulent convection, while the conversion of eddy potential energy into kinetic energy is accomplished mainly in the well-mixed main body of the fluid. On making use of these rather general conclusions concerning the kinetic energy generation and dissipation processes in the energy integrals, we are able to derive the well known 5/4 and 4/3 power laws of upward heat transfer by laminar and turbulent convections theoretically.

show abstract

Analysis of the Tropical Marine Boundary Layer during GATE Using Acoustic Sounder Data

Cited by 33 publications

References 0 publications

Observations of the thermodynamic structure of marine atmospheric boundary layer over Bay of Bengal, Northern Indian Ocean and Arabian Sea during premonsoon period

Observations of the thermodynamic structure of marine atmospheric boundary layer over Bay of Bengal, Northern Indian Ocean and Arabian Sea during premonsoon period

The limitations on stress parameterization imposed by intermittency in turbulent flow

Power laws of high Rayleigh number convection

Contact Info

Product

Resources

About