Add a new component to consider the aspects related to the system including decisions on it that have been performed via discussions on the mailing list.

The component shall have the name: "System aspects" and may be also used by the users encountering some problems with the system or having some suggestions on it

Recently, I found out that flex_extract version 7.0.3 has an error in the extraction of ERA5 data!

PLEASE STOP USING ERA5 DATA EXTRACTION!!!!

Times 17 and 18 do not contain any flux fields (e.g. precipitation). And the rest of the times it seems that the flux fields are shifted in time.

I'll provide a bug fix as soon as possible!

Explanations will follow ...

I have installed Flexpart V10.4 along with Flexextract etc. on a Lubuntu 20.04 system. So far as I can see the installation went well. To proceed with testing my aim was to run the first example described in Pisso et al. (2019). I have used Flex_extract to download the relevant input met data:

$flex_extracthome/Python>./submit.py
 --start_date 20170102  --controlfile
   CONTROL_EA5

and this succesfully results in the EA17010200 etc. files. I then proceeded to amend the pathnames file to point to the correct locations and run Flexpart. Since I assumed the AVAILABLE, OUTGRID, COMMAND and RELEASES files etc. sent with Flexpart would match this example I did not edit them. However, these example files do not match and it seems they are for another date (20120101). Given this I attempted to amend the relevant input files to match the met data I had downloaded. Having done this I have managed to get past many of the initial errors. However, I am now stuck with a series of GRIB1 and GRIB2 message errors e.g.:

***WARNING: undefined GRIB2 message found! 192 128 27 1 parID 27 isec1(6)
***WARNING: undefined GRIB2 message found! 192 128 28 1 parID 28 isec1(6)
***WARNING: undefined GRIB2 message found! 192 128 244 1 parID 244 isec1(6)
***ERROR: input file needs to contain GRIB1 formatted messages

I would appreciate knowing how to resolve this issue. That or which met data I should download to match the other input files associated with Flexpart V10.4.

One other point, I also get the following note:

Note: The following floating-point exceptions are signalling: IEEE_DENORMAL

Perhaps this is related and points to other issues I may have?