On 6/21/2011 5:16 PM, michael hughes wrote:
Hi All
I want to perform a linear interpolation on
GCM data along the time axis. The existing data
set is organised as separate files representing
snapshots at 5 day intervals and I've created
a Descriptor file to work with the data within
Ferret. I want to interpolate these results from
5 day to 1 day.
From what I can gather this should be a
rather trivial task, however I can't seem to get
my code to work. When I plot the interpolated
results the figure indicates that there is no
valid data in the interpolated data set.
!--------------------------
use GCM_data.DES
LET var_5day = temp ! for example
! interpolate data along new time axis
DEFINE
AXIS/t=25-JUN-1992:31-DEC-1999:1/UNITS=days
tax_1day
LET var_1day = var_5day[Gt=tax_1day@LIN]
!-------------------------
The DES file used to import the data has a
time axis at exactly 5 day intervals and I want
the new axis to interpolate at 1 day intervals.
However the output data set has no valid data.
Thanks in
advance for you help,
Michael
Hughes
PhD
Candidate
Griffith
University
Brisbane,
Australia