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MODIS SST 2014 dataset - differences between HDF and netCDF

PostPosted: Thu Apr 28, 2016 9:11 am
by podaac
User Question:
I'm writing this mail becuase I want to ask you about a weird phenomenon. For your SST data, both HDF and netCDF format are provided while netCDF files are put in 2014 version. I've noticed that there are some differences between HDF and netCDF over
SST product.

Please see the attached file, which HDF and netCDF figures are showed
respectively. Both images are in the same quality control (sst quality).

For me, it seems that there are more fragments of SST in the HDF format.
And the pixel value SST is also different in both format.

Do you know why?

Re: MODIS SST 2014 dataset - differences between HDF and net

PostPosted: Thu Apr 28, 2016 9:15 am
by podaac
Reply to User:
Thank you for your inquiry.

The differences you show in your plots are probably caused by the improvement in the new version which is in the netCDF format. The old version is going to be retired soon, so please use version v2014.0 dataset.

Please let us know if you need any further assistance.

Re: MODIS SST 2014 dataset - differences between HDF and net

PostPosted: Fri Apr 29, 2016 10:22 am
by podaac
User Question:
Thank you for the reply.

Does the new version of SST use a different algorithm than the old one
does? If so, does PODAAC provide any support documents relating to it?

Re: MODIS SST 2014 dataset - differences between HDF and net

PostPosted: Fri Apr 29, 2016 10:24 am
by podaac
Reply to User:
The v2014.0 has lots of improvements, you can refer to the following link:
http://oceancolor.gsfc.nasa.gov/cms/rep ... 140MA.html

Please let us know if you have any further questions.