Talk:GEOS-5 ADAS Radiance Monitoring: Difference between revisions
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* ATMS data returned on 6 August 18 UTC but the initial data set was quite small and caused the FPIT run to crash. That data was excluded from FPIT and will be excluded from MERRA2. | * ATMS data returned on 6 August 18 UTC but the initial data set was quite small and caused the FPIT run to crash. That data was excluded from FPIT and will be excluded from MERRA2. | ||
* CrIS-FSR data returned on 10 August 00UTC. The data will be monitored to determine when it can be turned on again in the DAS. | * CrIS-FSR data returned on 10 August 00UTC. The data will be monitored to determine when it can be turned on again in the DAS. | ||
== GRAS data processing updated to version 5 on 14 September 2021. == | |||
* '''5 Sep 2020''' Operational Radio Occultation products derived from the measurements of the Metop GRAS instruments will be updated on 14 September. In the new version of the operational processor (v5), the retrieval algorithms for bending angle data have been updated, solving a number of known issues in the GRAS level 1 data quality. In particular: | |||
** No non-physical oscillations (in the mesosphere) and spikes (in the troposphere), previously present in a small number of bending angle profiles. | |||
** Existing asymmetry between tropical tropospheric bending angle biases for rising and setting occultations has been largely reduced. | |||
** Statistical properties of lower tropospheric bending angle data are now more consistent with those of other publicly available radio occultation data. | |||
** Standard deviations statistics improved, especially at high altitudes and in the mid- and lower troposphere. | |||
* see https://www.eumetsat.int/new-version-gras-radio-occultation-processing | |||