[Thread Prev][Thread Next][Index]

Re: [ferret_users] Pa unit for pressure



Hi pressure coordinate fans,

| So you'll see messages from Ferret telling you that the units are not
| recognized and will not be convertible. This means that there is no
| internal logic to do conversions, as there is for calendar time units,
| or degrees-longitude which may be given as degrees East or degrees
| West, which Ferret can reconcile with other calendar or longitude
| axes, or as Steve says for handling integrals and derivatives on
| longitude/latitude axes.

I can imagine some scenarios where conversion between various
pressure axes may be useful.  Suppose one dataset uses "dbar"
and another uses "Pa".  If you want to take a difference between
the two fields, it wouldn't be trivial.  People also integrate
by pressure in geostrophic calculations.  You would have
to multiply the results by different factors depending
on the pressure unit. . . . Probably these are rare
situations, though.

Regards,
Ryo


[Thread Prev][Thread Next][Index]

Contact Us
Dept of Commerce / NOAA / OAR / PMEL / TMAP

Privacy Policy | Disclaimer | Accessibility Statement