CAMS forecast experiment using GRIB IEEE data encoding

Title CAMS forecast experiment using GRIB IEEE data encoding
Description CAMS atmospheric composition forecast experiment set up to explore data information content in the scope of a ESoWC project. The data is encoded as IEEE single-precision (32-bit floats) circumventing any other lossy compression. This is in contrast to the default 24-bit linear packing used for CAMS in the ECMWF data archive and on the Copernicus Atmosphere Data Store. Explanation of parameter ids can be found at: https://apps.ecmwf.int/codes/grib/param-db/
DOI 10.21957/56gh-9y86
Experiment ID hej6
Experiment class ECMWF Research Department
Examples

Retrieve all the meteorological and atmospheric composition parameters on the lowest model level, forecast step 24 for 1 December 2019 on the native grid.

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer

server = ECMWFDataServer()

server.retrieve({
    "class": "rd",
    "dataset": "research",
    "date": "2019-12-01",
    "expver": "hej6",
    "levelist": "137",
    "levtype": "ml",
    "param": "75/76/77/129/130/131/132/133/135/138/152/155/203/246/247/248/210001/210002/210003/210004/210005/210006/210007/210008/210009/210010/210011/210017/210022/210024/210025/210026/210048/210055/210056/210061/210062/210071/210121/210122/210123/210124/210129/210181/210203/210247/210248/210249/212250/212251/212252/215093/215094/215095/215180/215181/215182/215183/215184/215185/215186/215187/215188/216013/216014/216015/216016/216017/216018/217003/217004/217006/217007/217009/217010/217011/217012/217013/217014/217015/217016/217018/217019/217020/217021/217022/217023/217024/217026/217027/217028/217029/217030/217032/217033/217034/217035/217036/217037/217038/217039/217040/217041/217042/217043/217044/217045/217046/217047/217048/217049/217050/217051/217052/217053/217054/217055/217056",
    "step": "24",
    "stream": "oper",
    "target": "cams_all_ml137.grib",
    "time": "00:00:00",
    "type": "fc"
})