Tropical Sea-breeze Circulation and Related Atmospheric Phenomena Observed with L-band Boundary Layer Radar in Indonesia
Open Access
- 1 January 2000
- journal article
- Published by Meteorological Society of Japan in Journal of the Meteorological Society of Japan. Ser. II
- Vol. 78 (2), 123-140
- https://doi.org/10.2151/jmsj1965.78.2_123
Abstract
High time-resolution data observed with L-band boundary layer radar in the equatorial region of Indonesia during dry season periods have been analyzed. The existence of tropical sea-breeze circulation, whose delectability has been reported in earlier works, is corroborated by performing intercomparisons with rawinsonde and surface meteorological measurements. In addition to well defined circulation, anomalously weak echo patterns corresponding to the induced shear flow is also found to appear in several cases. Its origin can be identified as Kelvin-Helmholtz type of instability which is believed to generate long lived turbulence activity that caused the gradient of potential refractive index to be locally minimum. After seabreeze intrusion, the planetary boundary layer is divided into layers with different characteristics and cannot be considered as a homogeneous atmosphere throughout the daytime. Although quantitative comparison has not been done, it is found that the observed sea-breeze scales do not seem to critically depend on Coriolis factor f as a primary scaling parameter.Keywords
This publication has 21 references indexed in Scilit:
- Energy dissipation rates, eddy diffusivity, and the Prandtl number: An in situ experimental approach and its consequences on radar estimate of turbulent parametersRadio Science, 1997
- The sea—land breeze: numerical and analytical modellingPublished by World Scientific Pub Co Pte Ltd ,1996
- Radar Research on the Atmospheric Boundary LayerPublished by Springer Science and Business Media LLC ,1990
- An Analytical Study of the Sea BreezeJournal of the Atmospheric Sciences, 1989
- Quasi‐trajectory analysis of a sea‐breeze frontQuarterly Journal of the Royal Meteorological Society, 1989
- Speckle Suppression And Analysis For Synthetic Aperture Radar ImagesOptical Engineering, 1986
- Structure of a Sea-breeze Front Revealed by Scanning Lidar ObservationJournal of the Meteorological Society of Japan. Ser. II, 1986
- A modified Fresnel scattering model for the parameterization of Fresnel returnsRadio Science, 1985
- Winter Monsoon Convection in the Vicinity of North Borneo. Part I: Structure and Time Variation of the Clouds and PrecipitationMonthly Weather Review, 1981
- On the scattering and reflection mechanisms contributing to clear air radar echoes from the troposphere, stratosphere, and mesophereRadio Science, 1980