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MERRA Basic Climate Analysis

The GEOS5-MERRA reanalysis products will be compared with other reanalysis products and tested against several verification data sets. At present we use the GEOS4-CERES experiment as a demonstration and placeholder. The GEOS4-CERES reprocessing was performed to support the CERES instrument team research efforts. It is not publicly available.

Please see this GMAO MERRA Website on basic climate analysis for further information.

MERRA Studies of Hydrological Extremes

The GEOS5-MERRA reanalysis products will cover the satellite era from 1979 to the present. A special focus of the atmospheric assimilation will be the hydrological cycle. At present we use the GEOS4-CERES experiment as a demonstration and placeholder. The GEOS4-CERES reprocessing was performed to support the CERES instrument team research efforts. It is not publicly available.

Please see this GMAO MERRA Website on studies of hydrological extremes for further information. Also of interest is Precipitation Variations: Climatology of Monthly Zonal Mean -versus- GPCP.

MERRA Approach to Discontinuities

A crucial issue for climate reanalysis is the effect of discontinuities in the assimilation stream. MERRA is taking the following steps to compensate for discontinuities in the reanalysis of the satellite era.

Please see this GMAO MERRA Website on the approach to discontinuities for further information. Also, see GEOS5-MERRA Model Experiments.

 

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