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This article gives examples how to extract data for a specific location and/or time from a GRIB or NetCDF file.
Download data
Let's say you have a data file containing ERA5 data, specifically hourly surface pressure (sp) for the month 2003-08.
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This download gives you a GRIB file 'e5-sp-201008xx.grib' and a NetCDF file 'e5-sp-201008xx.nc', containing surface pressure for the month 2010-08, hourly, with global coverage.
Looking up data values in GRIB
We want to look up the surface pressure (sp) data value for 2010-08-05 00:00, at the model point closest to our target location lon=7.36 lat=43.89
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... shortName value sp 88510 ... Input Point: latitude=43.89 longitude=7.36 Grid Point chosen #3 index=84109 latitude=43.98 longitude=7.50 distance=15.11 (Km) ... |
Looking up data values in NetCDF
We want to look up the surface pressure (sp) data value for 2010-08-05 00:00, at the model point closest to our target location lon=7.36 lat=43.89
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