Dear Napoleon
Ah, I see. It is dg/dz. In that case I would call it
upward_derivative_of_acceleration_due_to_gravity
since Xward_derivative is a construction we use in other names. With this
name it would be a negative number (g decreases as you go upward). If you
want a positive number it would be downward_derivative_etc. It is good
to specify the direction of the derivative, because you might want to name
other ones. You might later want a name for dg/dx, for example.
Best wishes
Jonathan
> > > Gravity Potential Gradient
> > > standard name: gravity_potential_gradient
> > > unit: s-2
> >
> > There is an existing stdname of specific_gravitational_potential_energy
> > in J kg-1 = m2 s-2. Since taking a gradient has a sign and direction, your
> > quantity could be called
> > upward_derivative_of_specific_gravitational_potential_energy
> > for consistency with other names for derivatives, and it's in m s-2, isn't it?
> > - not s-2. However this quantity could also, more familiarly, be called the
> > acceleration_due_to_gravity i.e. g. Is it g you mean? I suppose g is the
> > vertical derivative of geopotential, which isn't quite the same as GPE. Are
> > you making a distinction here?
> >
>
> With this quantity I have make a correction and say it is rather a second order
> derivative of the potential, more related to spatial rate of change of g. Like what is described here:
> http://www.gradiometry.com/gradiometry In some cases, the unit used is the eotvos, but we prefer s-2.
> Perhaps just gravity_gradient ?
Received on Tue Dec 16 2014 - 10:52:40 GMT
