Hello, when i run flexpart after configure the COMMAND file and generate the AVAILABLE file, i have the following error: at line 99 of file readavailable.f90 (uni=1, file 'path to AVAILABLE file') Fortran runtime error: Bad value during integer read.

The first line about the windfield file in my AVAILABLE file looks like this: 20130614 120000 2013/201306141200.cdas1.20130614.pgrbh.grb2

Hello, I currently use FLEXPART-WRF in an urban setting on roughly 1 km resolution. In a test for the statistical error due to the limited particle number, I found not only statistical, but systematic differences (bias) between runs with different particle numbers. In particular, the sum of the footprints entries grows with the particle number. As I understand it the footprints' values should not generally grow with larger partical numbers, but become more and more consistent, which is not the case here. The same footprint was calculated for 10, 50, 250, and 500 thousand particles with very different results for the same release location, time and meteorology. The lowest paritcle number is chosen due to the vaule in reviewed papers using FLEXPART-WRF in an urban/meso scale setting:

• Cui 2015 ​https://doi.org/10.1002/2014JD023002 (10,000 particles per release)
• Nathan 2021 ​https://doi.org/10.5194/acp-2020-1303 (10,000 particles per release).

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 ...