coriolisf documentation
The coriolisf function returns the Coriolis frequency for any given latitude(s). The Coriolis frequency is sometimes called the Coriolis parameter or the Coriolis coefficient.
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Contents
Syntax
f = coriolisf(lat) f = coriolisf(lat,rot)
Description
f = coriolisf(lat) returns Earth's Coriolis frequency for any locations(s) at latitude(s) lat. By default, the Coriolis frequency is given in units of rad/s.
f = coriolisf(lat,rot) specifies a rate of rotation rot. By default, rot is Earth's present-day rate of rotation 7.2921 x 10^-5 rad/s, but a different rate may be specified to model Earth at a different time, other celestial bodies, or the Coriolis parameter in a different unit of frequency.
Example
Make a a 1°x1° grid, with cdtgrid, and get the Coriolis parameter for corresponding to each grid cell:
[Lat,Lon] = cdtgrid; f = coriolisf(Lat);
globepcolor(Lat,Lon,f) % coriolis f as pcolor globeborders % national borders globegraticule('linestyle',':') % the grid lines view(20,5) % sets the globe viewing angle caxis([-1 1]*0.146e-3) % sets color axis limits cb = colorbar('location','southoutside'); xlabel(cb,'coriolis frequency rad s^{-1}') cmocean diff % sets the colormap axis tight % minimizes empty space
Author Info
This function is part of the Climate Data Toolbox for Matlab. The function and supporting documentation were written by Chad A. Greene of the University of Texas at Austin.