JMA major update
Verfasst: Mi 21. Nov 2007, 13:32
Soeben auf der Page der Japan Meteorological Agency gesehen, dass das JMA heute ein "major upgrade" erfahren hat.
Schaun mer mal ob sich dadurch die Qualität der Produkte (endlich) verbessert.
Grüsse Philippe
The Upgrade History of the Global Spectral Model (March 1, 1988 - November 21, 2007)
21 NOV 2007 : Major upgrade was made to the model. Major changes were,
- increase in the resolution from TL319L40 to TL959L60 with a topmost level raised from 0.4hPa to 0.1hPa,
- use of a new high-resolution analysis of sea surface temperature and sea ice concentration as ocean surface boundary conditions,
- use of surface snow depth data from the domestic dense observational network in the global snow depth analysis,
- introduction of a convective triggering scheme into the deep convection parameterization,
- introduction of a new 2-dimensional aerosol climatology derived from satellite observations for the radiation calculation,
- increase in the resolution of inner loop model of the four-dimensional variational (4D-Var) data assimilation system from T106L40 to T159L60,
- change of forecast time to 84 hours for operations at 00, 06 and 18UTC.
Quelle: http://ddb.kishou.go.jp/Readme/UP_H_GSM_21_Nov_2007.txt
Schaun mer mal ob sich dadurch die Qualität der Produkte (endlich) verbessert.
Grüsse Philippe
The Upgrade History of the Global Spectral Model (March 1, 1988 - November 21, 2007)
21 NOV 2007 : Major upgrade was made to the model. Major changes were,
- increase in the resolution from TL319L40 to TL959L60 with a topmost level raised from 0.4hPa to 0.1hPa,
- use of a new high-resolution analysis of sea surface temperature and sea ice concentration as ocean surface boundary conditions,
- use of surface snow depth data from the domestic dense observational network in the global snow depth analysis,
- introduction of a convective triggering scheme into the deep convection parameterization,
- introduction of a new 2-dimensional aerosol climatology derived from satellite observations for the radiation calculation,
- increase in the resolution of inner loop model of the four-dimensional variational (4D-Var) data assimilation system from T106L40 to T159L60,
- change of forecast time to 84 hours for operations at 00, 06 and 18UTC.
Quelle: http://ddb.kishou.go.jp/Readme/UP_H_GSM_21_Nov_2007.txt