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If a netCDF file is well-formed, it is possible to create mosaic dataset directly from netCDF on S3. This is particularly useful if netCDF is already in an aggregated form in one single large file.
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This method doesn't work on ArcGIS Pro 2.6. Use <Sources><data_path>/vsis3/sdt-data/TF_merged.nc</data_path></Sources> for MDCS input instead.
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MDCS doesn't pick up time values properly from this Terra Fusion netCDF-4 file. Time variable has 0 and 5 values (i.e., 5 minutes after first dataset) but it mosaic dataset simply says 1 minute after the first record. The data type of time variable is 64-bit integer.
The blow is when stdtime is used as dimension name and variable.
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It doesn't matter whether you build mosaic locally using ArcGIS Pro instead of MDCS.
If time's type is int32, ArcGIS Pro can handle the value properly.
If there are missing/fill values in time variable, ArcGIS Pro can't handle them properly although type is int32. If you look at the figure below, you can see 43101 in StdTime.
It takes more than 6 hours to handle 200 rows from a merged netCDF-4 that has 8,670 time values.
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You don't have to run Multidimensional Tool on the mosaic dataset. Time dimension will be identified automatically. |
You can't copy mosaic dataset. ArcGIS Pro 2.6 hangs at 3%.
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