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How to change precision of nc file

Added by Tanmoyee Bhattacharya over 6 years ago

I have a nc file containing lat lon precipitation and day.I want to increase precision of rainfall values.How to do it?


Replies (4)

RE: How to change precision of nc file - Added by Karin Meier-Fleischer over 6 years ago

Hi Tanmoyee,

what do you mean with 'increase precision of rainfall values'? Do you want to interpolate the data from a coarse grid to a higher resolution grid?
Than have a look at the documentation about the remap operators.

-Karin

RE: How to change precision of nc file - Added by Tanmoyee Bhattacharya over 6 years ago

No sir Idon't want to interpolate.My rainfall values are in float.I want to increase it's precision.Or decimal number by -b 32 or - 64.But how I write it?

RE: How to change precision of nc file - Added by Tanmoyee Bhattacharya over 6 years ago

Tanmoyee Bhattacharya wrote:

No sir Idon't want to interpolate.My rainfall values are in float.I want to increase it's precision.Or decimal number by -b 32 or - 64.But how I write it?

RE: How to change precision of nc file - Added by Karin Meier-Fleischer over 6 years ago

To write the output to 64-bit float values which CDO uses internally use the -b option.

-b <nbits>

format               nbits
---------------------------------------
grb1,grb2            P1-P24
nc1,nc2,nc4,nc4c     I8/I16/I32/F32/F64
grb2,srv,ext,ieg     F32/F64
cdo -b 64 -copy infile outfile

-Karin

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