I have a NetCDF file of total monthly precipitation (precip.mon.total.v7.nc) spanning from 1901-2013 downloaded from https://www.esrl.noaa.gov/psd/data/gridded/data.gpcc.html and I need to derive the annual maximum monthly precipitation total for each pixel for each year in this timeseries.

How can I do this using ArcGIS Desktop?

  • can you describe the downloaded data that you have now? – Delonix R. Jul 28 '17 at 15:56
  • @DelonixR. The downloaded data is a NetCDF file with monthly precipitation totals from January 1901 to December 2013. What I need is maximum values for each pixel for each year. I know this can be done using Cell Statistics in ArcMap but I would have to individually extract hundreds of files and run the tool for each year. I want to ask if there is a quicker way to do this . – J Clifford Jul 28 '17 at 16:12
  • do you use/know python? – Delonix R. Jul 28 '17 at 16:44
  • @Delonix R. Only to a basic level – J Clifford Jul 28 '17 at 16:56
  • See also nco.sourceforge.net/nco.html#Monthly-data-in-one-file NCO is a great alternative! – Antonio Falciano Jul 28 '17 at 18:49

Use the Highest Position tool in the ArcGIS Spatial Analyst toolset. This tool will take multiple raster layers and return a single raster such that each cell is the highest value from all the input cells. I have never used NetCDF data so you may need to convert those data to another file type for the tool.

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