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Does 'ncread' automatically takes the 'add-offset' and 'scale factor' into account before returning the results?

조회 수: 15 (최근 30일)
I am reading some gridded geographical satellite data product in ".nc" format using "ncread" command. I find without multiplying the 'scale factor' and adding the 'add-offset' I am having the geophysicall values already.
I am confused whether 'ncread' automatically takes the 'add-offset' and 'scale factor' into account before returning the results.
Thanks in advance for your answer.

답변 (2개)

KSSV
KSSV 2019년 3월 8일
When you read a variable from netCDF using ncread, it will read the whole variable as it is written/ present in the file. It will read from start to end ...the entire data.

Vijay Sagar
Vijay Sagar 2020년 11월 11일
편집: Vijay Sagar 2020년 11월 11일
Most of the cases it applies both things automatically. Reference: ECMWF site.
Sometime It also depends of Netcdf data type. Reference: Matlab help center. Check 'vardata — Variable' data section and apply accordingly.

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