ERA5 dataset

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ERA5 dataset

Post by alicec » November 14th, 2017, 12:48 pm

A conversion utility program is now available to convert ERA5 grib files to ARL format for use by HYSPLIT.
The conversion program is in the trunk/data2arl/era52arl directory and is called era52arl.

Please note the following:
the conversion utility requires the ecmwf eccodes library
the utility currently only handles data on pressure levels (not model levels)

Some python code to download the era5 grib files which utilizes the ecmwfapi can be found at
Please use or consult to figure out which variables are needed by HYSPLIT.
The era52arl utility will take three input grib files
1. pressure level fields (grib1)
2. analysis surface fields (grib1)
3. analysis forecast fields (grib1)

For more information on the ERA5 dataset please see: ... at+is+ERA5

Note that this is a global dataset with high temporal and spatial resolution (hourly, 0.3 degree).
Consequently, the grib files may be very large.

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