IFS Documentation front page

I Observations
II Assimilation
III Dynamics
IV Physics
V Ensemble
VI Technical
VII Waves

Part II: Data assimilation

CHAPTER 14 Data Flow

Table of contents

14.1 Notation

14.2 Data assimilation cycling

14.3 Overview of 4D-Var data flow

14.4 Input GRIB fields

14.4.1 reftrajshml

14.4.2 reftrajggml

14.4.3 reftrajsfc

14.4.4 errgrib

14.4.5 SSTDATA${starttime}

14.4.6 SGS${starttime}

14.4.7 CD${starttime}

14.4.8 UWAVE${starttime}

14.4.9 WIND${starttime}

14.5 Input observation data

14.6 Input data files

14.6.1 Invariant data files

14.6.2 Date-dependent data files

14.7 Output GRIB fields

14.7.1 Output type `an' model level spectral fields

14.7.2 Output type `an' model level Gaussian grid-point fields

14.7.3 Output type`an' surface Gaussian grid-point fields

14.7.4 Output type `an' wave model fields

14.7.5 Output error fields

14.8 Output observation data

14.9 Sea surface temperature analysis

14.9.1 Input GRIB fields on model grid

14.9.2 Input NCEP fields

14.9.3 Input data files

14.9.4 Output GRIB fields on model grid

14.10 2 metre temperature analysis

14.10.1 Input GRIB fields on model grid

14.10.2 Input observation data

14.10.3 Output GRIB field on model grid

14.11 2 metre relative humidity analysis

14.11.1 Input GRIB fields on model grid

14.11.2 Input observation data

14.11.3 Output GRIB field on model grid

14.12 Snow analysis

14.12.1 Input GRIB fields on model grid

14.12.2 Input data files

14.12.3 Input observation data

14.12.4 Output GRIB field on model grid

14.13 Soil moisture analysis

14.13.1 Input GRIB fields on model grid

14.13.2 Output GRIB fields on model grid

14.13.3 Invariant climatological fields