In early 2017 ECMWF prepared L2B and L2C datasets for testing by the Aeolus CAL/VAL teams (based on L2Bp v2.30). These were prepared by running a realistic simulation of 16 orbits of Aeolus using ECMWF model data (wind, temperature, pressure, cloud properties) as input to the Aeolus simulator (E2S) for the date 1/10/2015. The CAL/VAL rehearsal datasets (generated in 2017) are provided here:
- The Level-2B datasets (in Earth Explorer format) are here: ALD_U_N_2B.tar.gz
- Example of Aeolus L2B BUFR products are here: extracted_BUFR.tar.gz
- The Level-2C datasets (in Earth Explorer format) are here: ALD_U_N_2C_reprocessed.tar.gz
Updated datasets:
The data has been regenerated (in March 2018) with the most recent processing chain: E2S v4.01, L1B v7.01 and L2B v3.00.
Earth Explorer files (normally distributed by ESA via: https://aeolus-ds.eo.esa.int/oads/access/ (see baseline 1BCV and 2BCV)):
- The input Level-1B Earth Explorer data (only first 3 files due to their large size): ALD_U_N_1B_first_3_files.tar.gz
- The auxiliary data used by the L2B processor (not including AUX_MET_12, since too large): L2Bp_inputs_without_AUX_MET.tar.gz
- The Level-2B Earth Explorer data: ALD_U_N_2B_first_half.tar.gz and ALD_U_N_2B_second_half.tar.gz
- The Level-2B report files: ALD_REP_2B.tar.gz
L2B BUFR data produced by ECMWF (to be distributed via EUMETSAT during the mission):
- The Level-2B BUFR data (one file per orbit): ALD_B_N_2B.tar.gz This type of data will be used for providing the BUFR on the GTS.
- The extracted L2B BUFR (6 hourly chunks, as part of ECMWF pre-processing): extracted_BUFR.tar.gz
- Known issues in the BUFR (that will be resolved in the next delivery v3.10):
- Sat ID should be 48 rather than 600
- Missing values in some azimuth and elevation angle values (when should always be available)
- Missing HLOS winds when validity flag set to Valid, when it should be invalid
- dHLOS_dp values are too large by a factor 100 (wrong units). Also noted that dHLOS_dp and dHLOS_dT need more precision.
How the data should look
Plots showing data from the first orbit of the CAL/VAL rehearsal dataset:
Aeolus L2B BUFR data with 2018 dates
Note that this example data (link below) does not have realistic wind values i.e. it simulated with constant wind profiles, which do not relate to the real winds at the time. The period is {27,28,29}/06/2018.