Thursday, 14 September 2000: 4:49 PM
A 20km version of the Rapid Update Cycle will be
implemented at NCEP later in 2000. This version will
provide more accurate forecasts of precipitation,
wind, temperature, and moisture, especially where
orographic effects are important. Improved convection
and stable cloud microphysics parameterizations will
be included in the 20km RUC, along with more precise
land-use fields. The 20km version will also contain
a 3-d variational analysis and an initial cloud analysis
using GOES cloud-top pressure data. Performance of
the 20km RUC compared to the 40km version will be presented
at the conference.
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