This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Hi HP- > > Yes, I can confirm that these are GRIB 1 files. An octal dump (od -c) > > of the file you sent shows: > > > > 0000000 G R I B \0 020 n 001 \0 \0 4 200 b 200 377 200 > > > > where the 001 is version 1 of grib. I've also received a similar > > question about these files from another user. > > That is convincing, of course. I do not have high hopes that ECMWF will > change these data sets to GRIB2 soon. However, they are offering > different grid setting but not one seems to be adequate. What do you > understand exactly under a regular grid? It has to be a regular projection (xy -> lat/lon). We do not support the thinned or tiled grids. Is the archive you are accessing publicly available? If so, what is the URL? Don Ticket Details =================== Ticket ID: SII-492455 Department: Support IDV Priority: Emergency Status: Open