Content from
https://confluence-test.ecmwf.int/display/ECC/Frequently+Asked+Questions
Summary
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grib_to_netcdf: skips Control Forecast when I convert Ensemble Forecast data - ecCodes GRIB FAQ — If you have a file with both Control and Perturbed forecasts, grib_to_netcdf will only convert the pf. Normally from 51 members in the GRIB file, only 50 appear in the netCDF.
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grib_to_netcdf: Why do I get the error "Wrong number of fields... Try using the -T option" - ecCodes GRIB FAQ — You try to retrieve data from the ECMWF data archive in netCDF format but the retrieval fails with this message
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Why I cannot set negative values for the longitude in GRIB 2 - ecCodes GRIB FAQ — GRIB 1 regulates that the longitude can be in either [-180, 180] or [0,360], GRIB 2 regulates that the longitude can only be in the interval [0,360]
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Why can I read certain parameters using the grib tools, but not from my program - ecCodes GRIB FAQ — Your file may be encoded as a multi-field GRIB file. By default, grib tools have multi-field support enabled and the API disabled.
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Why am I not able to set the missing value in the GRIB message - ecCodes GRIB FAQ — The GRIB format does keep track of missing values but through the use of a bitmap It does not allow the specification of a missing value. Setting the missing value is a feature that can be used only when encoding the data values stored in a GRIB message.
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Getting an "relocation R_X86_64_32 against `.bss' cannot be used when making a shared object; recompile with -fPIC" - ecCodes FAQ — jasper library that has been linked statically is trying to be linked into a dynamic libgrib_api.so. Libraries linked to a dynamic library must use "relocatable" code, and normally static libraries aren't. Possible solutions
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Failure setting key changeDecimalPrecision - ecCodes GRIB FAQ — If you issue the command "grib_set -s changeDecimalPrecision=1 spectral.grib output", you can get an error