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The Planetary Boundary Layer

1995
The term planetary boundary layer (PBL) is often used as a synonym for the Ekman layer (i.e., for the region in which the convergence of the vertical flux of momentum is of the same order as the Coriolis force and the pressure gradient). The definition favored in this chapter is somewhat broader and includes the regions on both sides of the interface ...
Eric B. Kraus, Joost A. Businger
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The Planetary Boundary layer

2001
It is natural to think that the atmosphere rotates with the same velocity as the solid Earth although it is not at all obvious why this should happen. In general, we could say that the Earth drags the atmosphere because of the friction between the surface and the atmospheric layers near it.
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Molecules in Boundary Layers in Planetary Nebulae

Astrophysics and Space Science, 1997
Newly formed planetary nebulae are very interesting objects for the astro-chemist to study, since they appear to involve the interaction of a dense, molecule-rich superwind with the UV field and fast wind from the revealed central star. In the simplest picture each of these winds has shocked and unshocked components but the fast wind remains wholly ...
S. D. Taylor, D. A. Williams
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The Planetary Boundary Layer

1985
Publisher Summary The planetary boundary layer (PBL) is that part of the atmosphere that is affected by the characteristics of the ground by rapid vertical exchange processes, mostly by turbulence. Its characteristics vary strongly from day to night and from land to sea.
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Turbulence structure in the planetary boundary layer

Boundary-Layer Meteorology, 1973
This review of the last three years of progress in the understanding of wind profiles and the structure of turbulence in the planetary boundary layer is divided into three parts. The first part, by N. E. Busch, deals with the atmospheric surface layer below 30 m.
N. E. Busch, H. Tennekes, H. A. Panofsky
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Boundary Layers in Planetary Atmospheres

1973
In large-scale air currents, near the surface of a planet, the combined action of the pressure gradient, turbulent friction and Coriolis force results in the formation of the atmospheric boundary layer. Unlike most boundary layers dealt with in aerodynamical engineering, the atmospheric boundary layer is characterized by the influence of the Coriolis ...
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Stratocumulus-Topped Atmospheric Planetary Boundary Layer

1998
Marine stratocumulus often occurs over the subtropical oceans off the west coasts of the major continents throughout most of the summertime season when the large-scale subsiding motion is strong and the ocean surface is cold. This large-scale condition leads to a very moist, shallow planetary boundary layer (PBL).
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Slant-Path Scintillation in the Planetary Boundary Layer

Applied Optics, 1973
Results are presented from an experimental study of the effects of range, path geometry, and thermal turbulence intensity in the planetary boundary layer on the laser scintillation magnitude, represented by the log-intensity standard deviation sigma. Intensity fluctuations of two 15-mW helium-neon laser beams propagating along reciprocal slant paths ...
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The Planetary Boundary Layer of Mars

2019
The planetary boundary layer of Mars is a crucial component of the Martian climate and meteorology, as well as a key driver of the surface-atmosphere exchanges on Mars. As such, it is explored by several landers and orbiters; high-resolution atmospheric modeling is used to interpret the measurements by those spacecrafts. The planetary boundary layer of
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Helical Circulations in the Planetary Boundary Layer

The Physics of Fluids, 1967
Constant volume balloon (tetroon) flights within the planetary boundary layer provide evidence for the existence of alternating, horizontal roll vortices with axes in the general direction of the mean flow. The dimensions of these vortices are a function of stability.
J. K. Angell, D. H. Pack
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