The GHRSST_PP ALADIN DW data base Emmanuelle Autret*, Mark Fillipiak**, Pierre LeBorgne***, Hervé Roquet*** *Ifremer, Brest; **Univ. of Edinburgh; ***M-F/CMS, Lannion Presented at the 8th GHRSST meeting, Melbourne, Australia, May 2007
Foreword The ALADIN model outputs available in this database have been provided by Météo-France on request of the Director of the GHRSST-PP Projret Office (Craig Donlon) and are restricted to research activities within the GHRSST-PP. Database available though: ftp://ftp.ifremer.fr/ifremer/cersat/projects/ghrsst-dvwg/aladin-dw/
Data base content overview Coverage 35N-55N; 11W_17E, 0.1° resolution Daily files from the 1st April till the 30th September 2006 lat,lon landmask, analyzed_sst) HOURLY VARIABLES: ALADIN outputs (U_wind, V_wind, net_ssi, net_dli, latent_heat, sensible_heat) ECMWF* outputs (as above) mw wind (speed, time, origin) dt_analysis (DT, error) reference SST MSG derived radiative fluxes (ssi, dli) MSG derived Saharan Dust Index (sdi) *ECMWF fluxes at 6, 12, 18 and 24 only
Data base content Analyzed SST Contact:
Data base content ALADIN outputs Contact: *ECMWF fluxes at 6, 12, 18 and 24 only
Data base content ECMWF outputs Contact:
Data base content Microwave winds Contact:
Data base content DT_Analysis Error= [error_analysis 2 + error_SST 2 ] 1/2 2: , : , : , : 0.035, Contact:
Data base content reference_SST Contact:
Data base content radiative fluxes WARNING: radiative fluxes are 30 minutes apart from SST Data Ex: time=1 correspond to SSI approximate time of 0030 UTC… (over the Med. About 5 mns before nominal time) Contact:
Data base content Saharan Dust Index Contact:
SST VALIDATION :
SST VALIDATION : Inter comparison 2006
SST VALIDATION : Inter comparison 2005
SSI VALIDATION :
DLI VALIDATION :
Impact of Resolution full 24 hrs cycles DT > 0.5, 10UTC < tpeak<19UTC DT_peak=f(SSI,wind) 900<SSI<1000 w/m2, 0<U<2 m/s (Autret & LeBorgne, Key Largo) ? Max DT Mean DT and St. Dev.
2: , : , : , : 0.068, Also available through ftp://ftp.ifremer.fr/ifremer/cersat/projects/ghrsst-dvwg/aladin-dw/
Related OSI-SAF databases - Sst1h: 0.05 degree resolution, hourly. Please consider bad (=2) data by day! - Flx1h: SSI and DLI 0.1 degree resolution, hourly Available under ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/experimental-cms ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/experimental-cms - NETCDF - GOES-E from June MSG from June Net radiative flux at the air/sea interface : 0.1 degree resolution, daily - SST foundation analysis: 0.1 degree resolution, daily Available under ftp://ftp.ifremer.fr/ifremer/cms ftp://ftp.ifremer.fr/ifremer/cms - NETCDF - from January 2003