the ghrsst pp aladin dw data base
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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.

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the ghrsst pp aladin dw data base

The GHRSST_PPALADIN 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
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
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 aladin outputs
Data base contentALADIN outputs

*ECMWF fluxes at 6, 12, 18 and 24 only

Contact: Hervé[email protected]

data base content dt analysis
Data base contentDT_Analysis

2: -0.304, 0.63

3: -0.016, 0.596

4: -0.007, 0.412

5: 0.035, 0.384

Error= [error_analysis2+ error_SST2]1/2

Contact: [email protected]

data base content radiative fluxes
Data base contentradiative fluxes

Contact: [email protected]

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)

slide13
SST VALIDATION :

Inter comparison 2006

slide14
SST VALIDATION :

Inter comparison 2005

slide16
SSI VALIDATION :

www.osi-saf.org

slide17
DLI VALIDATION :

www.osi-saf.org

slide18
Impact of Resolutionfull 24 hrs cycles DT > 0.5 , 10UTC < tpeak<19UTCDT_peak=f(SSI,wind) 900

Max DT

Mean DT and St. Dev.

?

slide20
Also available through

ftp://ftp.ifremer.fr/ifremer/cersat/projects/ghrsst-dvwg/aladin-dw/

2: -0.386, 0.714

3: -0.122, 0.399

4: -0.172, 0.615

5: 0.068, 0.362

related osi saf databases
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
  • NETCDF
  • GOES-E from June 2001
  • MSG from June 2004
  • 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
  • NETCDF
  • from January 2003
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