HARMONIE Observation Preprocessing
Introduction
The following figure shows different schematic steps in the HARMONIE data assimilation system. It is worth mentioning some differences between the observation pre-processing systems used by ECMWF, Météo France, and HIRLAM. Some of these differences are listed below:
| AROME/HARMONIE-AROME | IFS | |
|---|---|---|
| data format/content | BUFR, but sometimes with own table | BUFR with WMO code |
| creation of ODB database | Bator converts BUFR to ODB | b2o/bufr2odb converts BUFR to ODB |
| blacklisting technique | Bator (LISTE_LOC, LISTE_NOIRE_DIAP), Screening (hirlam_blacklist.B) & Minim (NOTVAR namelist) | Screening only |
Observation file preparation
- Observation Data: Observation data – where to get your BUFR!
Preprocessing Software
- Bator: Bator - reads BUFR/HDF5/OBSOUL observation data and writes ODBs used by data assimilation
Other possibilities include: