MERRA Current Status
4/19/2007
The science aspect of the MERRA is frozen. There are some final settings in the system that are awaiting a final decision. Validation of the whole system should be under way in 1-2 weeks.
This is an example of the precipitation being produced in the system.
The figure shows the difference of monthly reanalysis precipitation from GPCP. The numbers over each panel show the mean global difference (near zero is good) and the global standard deviation of the difference (smaller is better).
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An update to the Status. An engineering run wit the full MERRA output has been run. This will allow users to get a feel for the format and locations of data.
Several important fixes have been incorporated, such as improved interpolation of surface layer winds.
A fix to upper tropospheric analysis statistics is being finalized. This will improve upper level tropical winds.
Decisions will be made when some new test runs have been analyzed. The system is close to final form.
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