Talk:GEOS-5 ADAS Radiance Monitoring: Difference between revisions
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* The issues with the S-NPP band 2 have affected distribution of the whole spectrum due to QC checks in the processing that produces SDRs. A fix to allow distribution of the SDRs even when band 2 is compromised should be implemented within a week. The long term proposal is to switch to "Side 2" of the instrument to attempt to regain band 2. This will require an outage of CrIS S-NPP data for around one month. | * The issues with the S-NPP band 2 have affected distribution of the whole spectrum due to QC checks in the processing that produces SDRs. A fix to allow distribution of the SDRs even when band 2 is compromised should be implemented within a week. The long term proposal is to switch to "Side 2" of the instrument to attempt to regain band 2. This will require an outage of CrIS S-NPP data for around one month. | ||
* The CrIS NPP data returned 4/16/2019 18UTC. At that point the data for the mid-band channels was filled with missing values. We did not make any changes to the operational or MERRA-2 assimilation setup although it may have been better to have set the mid-band channels as passive. | * The CrIS NPP data returned 4/16/2019 18UTC. At that point the data for the mid-band channels was filled with missing values. We did not make any changes to the operational or MERRA-2 assimilation setup although it may have been better to have set the mid-band channels as passive. | ||
* The switch to the "Side 2 electronics | * The switch to the "Side 2 electronics" was carried out [https://www.ospo.noaa.gov/data/messages/2019/MSG1721804.html June 24, 2019 at 1332 UTC]. It had been expected that the data would be cut off after the switch but we continued receiving it and did not initially notice the changeover. The active_channels.tbl change to make CrIS_NPP passive was added to f522_fp on 6/28/2019 at 12UTC. | ||
* A copy of the active_channels.tbl was created to be used in future tags, that set the mid-band channels as passive starting March 26, 2019 and turns off all data starting at the time of the switch to side 2. This table is being used in the GEOSadas-5_25 tag. | * A copy of the active_channels.tbl was created to be used in future tags, that set the mid-band channels as passive starting March 26, 2019 and turns off all data starting at the time of the switch to side 2. This table is being used in the GEOSadas-5_25 tag. | ||
* At this point we are looking at the side-2 data and will make a decision later on when to turn it on again. | * At this point we are looking at the side-2 data and will make a decision later on when to turn it on again. | ||
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*''' 22 Feb 2021''' NCEP will implement obsproc_satingest v3.10.3 which will include processing of all FOV MetOpC IASI data (per RFC 7767). | *''' 22 Feb 2021''' NCEP will implement obsproc_satingest v3.10.3 which will include processing of all FOV MetOpC IASI data (per RFC 7767). | ||
* Previous to this update, MetOpC IASI data from clear FOVs had been quietly added (per RFC 6864) beginning 2020/05/19 12z. This data was not assimilated. | * Previous to this update, MetOpC IASI data from clear FOVs had been quietly added (per RFC 6864) beginning 2020/05/19 12z. This data was not assimilated. | ||
== CrIS-FSR SNPP Side 2 LW anomaly May 21, 2021 1552Z == | |||
*''' 24 May 2021''' A problem developed with the LW band on CrIS-FSR SNPP on Friday May 21. The instrument is currently using the "Side 2 electronics" since June 2019. Discussions are currently ongoing regarding whether to continue using Side-2 without the long-wave channels, or to switch back to Side 1 with missing mid-wave channels. | |||