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1
The Encyclopedia of World Climatology
Cross-references Atmospheric Circulation, Global Intertropical Convergence
Zone Tropical Cyclones Tropical and Equatorial Climates Figure E3 The Ekman
spiral applied to increasing water depth. In the spiral layer the wind blows across
the ...
2
An Introduction to Dynamic Meteorology
A more satisfactory representation for the planetary boundary layer can be
obtained by combining the logarithmic surface layer profile with the Ekman spiral.
In this approach the eddy viscosity coefficient is again treated as a constant, but ...
James R. Holton, Gregory J. Hakim, 2013
3
Earth Systems: Processes and Issues
EKMAN SPIRAL AND EKMAN TRANSPORT We have already noted that as the
wind blows across the sea surface, there is a decrease in velocity of the water
with depth due to frictional effects. As the wind drags the thin veneer of water at
the ...
4
Encyclopedia of Marine Science
Ekman's spiral was motivated by Fridtjof Nan- sen's observations of the drift of
icebergs in the polar sea (see the essay on oceanographic innovations, page
351). Nansen observed that icebergs drifted to the right of the wind direction with
the ...
C. Reid Nichols, Robert G. Williams, 2009
5
Introductory Dynamical Oceanography
9.45 Limitations of the Ekman theory The above theory is quite elegant in its way
but in fact it is doubtful if anyone has actually observed a well-developed Ekman
spiral current distribution in the sea as even Ekman admitted in one of his last ...
Stephen Pond, George L. Pickard, 1983
6
Meteorology Today: An Introduction to Weather, Climate, and ...
This tur ning of water with depth is known as the Ekman spiral.* The Ekman spir
al in Figure 10.17 sho ws us that the a verage movement of water from the
surface down to a depth of about 100 m is at r ight angles (90) to the surface wind
...
C. Donald Ahrens, Peter Lawrence Jackson, Christine E. J. Jackson, 2012
7
Atmosphere, Weather, and Climate
... (i.e. the lapse rate is that of the DALR, or the potential temperature is constant
with height; see Figure 5.1). For this ideal state, the wind turns clockwise (500-
1000mUGEOSTROPHIC WIND Figure 6.5 The Ekman spiral of wind with height,
...
Roger Graham Barry, Richard J. Chorley, 2003
8
The Facts on File Dictionary of Weather and Climate
The effect was developed in 1902 as a mathematical model – the EKMAN
SPIRAL. 2. In the atmosphere, the way in which the winds within the friction layer
in the lower TROPOSPHERE gradually change speed and direction moving from
the ...
9
Atmospheric and Oceanic Fluid Dynamics: Fundamentals and ...
2.14 An idealized Ekman spiral in a southern hemisphere ocean, driven by an
imposed wind stress. A northern hemisphere spiral would be the reflection of this
about the vertical axis. Such a clean spiral is rarely observed in the real ocean.
10
An Introduction to Atmospheric Physics
Figure 5.9 gives a graphical representation (a hodograph) of the horizontal
velocity vector (u,v) as a function of z/h. This diagram is called the Ekman spiral;
note how the velocity vector spirals in towards the free-atmosphere flow (U,0).
ȘTIRI NOI CARE INCLUD TERMENUL «EKMAN SPIRAL»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
Ekman Spiral în contextul următoarelor știri.
Large-Eddy Simulation and Single-Column Modeling of Thermally …
Within the ABL, the wind direction is a function of elevation according to the Ekman spiral, and it is difficult to set the geostrophic velocity ... «RenewablesBiz, Iun 15»
Kenneth L. Hunkins
He also charted a vast, previously unknown undersea mountain range and was the first to measure a so-called Ekman spiral, a sort of subsea ... «Lake Placid News, Sep 14»
The Art of Sewing Science Into Beautiful Quilts
Here is the computer detail for the Ekman Spiral stitch. Anna Von Mertens. Gallery Image. Slide: 4 / of 10 . Caption: Aurora. Von Merten's most ... «Wired, Sep 14»
The Truth About Trees
This phenomenon, referred to as an “Ekman Spiral”, can produce rainfall in the right conditions. Therefore, lines of trees impact the air moving ... «CounterCurrents.org, Dec 10»
Extra tough general knowledge quiz questions
5 What are affected by the Ekman spiral effect? 6 What colour are soap nuts, the fruit of the Soapberry tree? 7 What kind of creature is a Father ... «Telegraph.co.uk, Iul 10»
Oil-spill threat - are our waters safe?
In wind driven currents, the Ekman spiral effect results in the currents flowing at an angle to the driving winds. The areas of surface ocean ... «Jamaica Gleaner, Iun 10»
The Earth Really Does Move For Insects
Reynolds said: "Nocturnal insects are frequently being 'misled' by the action of the Ekman spiral (the turning of the mean wind direction due to ... «Insciences Organisation, Nov 09»
