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

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Thumree Sarkar 2019-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/448963-does-ncread-automatically-takes-the-add-offset-and-scale-factor-into-account-before-returning

编辑： Vijay Sagar 2020-11-11

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.

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Thumree Sarkar 2019-3-8

I found the answer. ncread takes care of the add-offset and scale factor while reading the data. Thanks.

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Answer 1

KSSV 2019-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/448963-does-ncread-automatically-takes-the-add-offset-and-scale-factor-into-account-before-returning#answer_364426

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.