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The planned timetable for the implementation of the cycle 47r2 47r3 is as follows:
| Date | Event |
|---|---|
| TBC | Announcement of expected implementation date |
| 5 Oct 2021 | Implementation |
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- Introduction of linear chemistry for NOx in minimization (tangent linear and adjoint code)
- Updated background error statistics based on a more recent version of the model
Observations
- Introduction of Sentinel-5p NO2
- Monitoring of VIIRS AOD
- Monitoring of Sentinel-3/SLSTR AOD
Emissions
- Spatial smoothing applied to NO emission field in a limited area of Central Asia to eliminate numerical artefacts
Other model changes
- Updated aerosol dry deposition based on Zhang & He (2014)
- Updated aerosol wet deposition based on Luo et al. (2019)
Impact of the new cycle
A comprehensive evaluation report of the 47r3 e-suite will be made available closer to the implementation date, documenting all the changes and their impact on the forecasts.
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There are no new or discontinued parameters in the disseminated data compared to 47r147r2.
Software
Availability of test data from the cycle
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47r3 test suites
Test data will become available in August.
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