Modell-iskola
Egy jó hír még a GFS-rõl:
A significant update to the GFS is planned for late Spring 2010.
The next GFS implementation in planned for late Spring 2010 and includes:
-improvements to the shallow and deep convection parameterizations. There is a dramatic reduction in grid point storms (colloquially known as “precip bombs” or “grid-scale feedback”) , which have plagued the GFS.
-increase in resolution (to T574 64L or ~27 km grid spacing ).
-replacement of shortwave radiation from NASA based version with random cloud overlap to AER based RRTM with maximum/random cloud overlap.
-inclusion of vertical advection of moisture, ozone and cloud condensate based on positive definite advection scheme.
-changes are also made to boundary layer scheme and gravity wave drag.
Link
A significant update to the GFS is planned for late Spring 2010.
The next GFS implementation in planned for late Spring 2010 and includes:
-improvements to the shallow and deep convection parameterizations. There is a dramatic reduction in grid point storms (colloquially known as “precip bombs” or “grid-scale feedback”) , which have plagued the GFS.
-increase in resolution (to T574 64L or ~27 km grid spacing ).
-replacement of shortwave radiation from NASA based version with random cloud overlap to AER based RRTM with maximum/random cloud overlap.
-inclusion of vertical advection of moisture, ozone and cloud condensate based on positive definite advection scheme.
-changes are also made to boundary layer scheme and gravity wave drag.
Link