Re: [ferret_users] Spatial regridding

[Karl Smith - NOAA Affiliate <karl.smith@xxxxxxxx>]

I suspect the variable definition is overshadowing the variable of the same name in the new dataset.  After saving cg to c96.nc, cancel the variable cg ("cancel var cg"), then open ("use") the c96.nc dataset.

Karl

On Tue, Jul 18, 2017 at 6:23 AM, Stephy Ann Libera <stephyann.libera23@xxxxxxxxx> wrote:

Hello Sir

I am trying to regrid data of different resolutions to one single type,

from the code I got, I was trying it and encounters error. The terminal script is attached. What changes should I make?

yes? use chl96_12.nc
           *** NOTE: Axis coordinates are decreasing-ordered. Reversing ordering for axis lat
           *** NOTE: Ignored modulo length exceeding axis length: lon
           *** NOTE: Internal err: unknown data type
yes? sh da
     currently SET data sets:
    1> ./chl96_12.nc  (default)
 name     title                             I         J         K         L         M         N
 CHLOR_A  Chlorophyll Concentration, OCI   1:4320    1:2160    ...       ...       ...       ...
 PALETTE                                   1:256     1:3       ...       ...       ...       ...
 
yes? sh grid chlor_a
    GRID GJT1
 name       axis              # pts   start                end                 subset
 LON       LONGITUDE         4320 r   179.96W(-179.96)     179.96E(179.96)     full
 LAT       LATITUDE          2160 r   89.958S              89.958N             full
 normal    Z
 normal    T
 normal    E
 normal    F

yes? fill chlor_a
yes? def axis/x=-180:180:0.25/units=degrees lon
Replacing definition of axis LON
           *** NOTE: grid GJT1 used by data set chl96_12
           *** NOTE: Redefinition may alter apparent contents of data set
yes? def axis/y=-70:-50:0.25/units=degrees lat
Replacing definition of axis LAT
           *** NOTE: grid GJT1 used by data set chl96_12
           *** NOTE: Redefinition may alter apparent contents of data set
yes? def grid/x=lon/y=lat chl1
yes? let cg=chlor_a[g=chl1@ave]
yes? save/file=c96.nc/clobber cg
 LISTing to file c96.nc
yes? use c96.nc
yes? fill cg
 **ERROR: variable unknown or not in data set: CHLOR_A[G=CHL1@AVE]

--

Karl M. Smith, Ph.D.
JISAO Univ. Wash. and PMEL NOAA
"The contents of this message are mine personally and do
not necessarily reflect any position of the Government
or the National Oceanic and Atmospheric Administration."