GEWEX WEBS. Chair, Roads MAGS, Szeto GAPP, Juang LBA, Marengo LPB, Berbery BALTEX, Isemer AMMA, Gaye GAME, Masuda MDB, Seed. ISCCP, Rossow SRB, Stackhouse GRDC, Douglas NVAP, Rossow GPCP, Adler CMAP, Arkin NCEP, Roads ERA, Beljaars JRA, Masuda GLDAS, Rodell. MC. Q. E. P. N.
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Our goal is to use the “best available” GEWEX and other global data sets to assess our current uncertainty in characterizing (“closing”) global and regional water and energy cycles for the ~ -1986-1995+ time period.
QRS Ann. Mean (86-95) Some differences between obs over Amazon, AfricaLarger differences from atmospheric reanalyses over the oceanLand assimilations use bias corrected atmospheric reanalyses downwelling solar radiation
Despite having the same downward solar radiation, GLDAS models have almost the same uncertainty as reanalysis models. Observations have less uncertainty in most places.
Reanalyses too wet?
Are RESG and REST measures of closure?
Using either GLDAS or reanalysis surface fluxes gives about the same closure error ~ 20 W/m**2
*The pending NASA Modern Era Retrospective-analysis for Research and Applications
**NASA Energy and Water-cycle Study