
# # Rossby Parameter
#
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#
# [from wikipedia:](https://en.wikipedia.org/wiki/Rossby_parameter)
#
# The Rossby parameter `β` arises due to the variation of the Coriolis
# force `f(φ)` as a function of latitude `φ`. It is important
# in the generation of Rossby waves and given by
#
# $$\beta(\varphi) = 2\Omega / R * cos(\varphi)$$

using PhysicalOceanography
isapprox(β(45),1.61687441686e-11)
