[ferret_users] Latitude, longitude to length conversion while calculating derivatives in Pyferret ?

[VL Srinivas <srinivasvl81@xxxxxxxxx>]

Hello,

While calculating derivatives say, dU/dx, it is written as U[X=@DDC] for central difference. But, the dimension X is in degrees(longitude) and velocity U in m/s.

Do I need to convert the degrees of X into metres during calculation? Or is it embedded in Pyferret to convert it into metres while calculating ?

Thank you.

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Regards,

V.L.Srinivas.