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

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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 analyzed sst

Data base contentAnalyzed SST

Contact: [email protected]


Data base content aladin outputs

Data base contentALADIN outputs

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

Contact: [email protected]


Data base content ecmwf outputs

Data base contentECMWF outputs

Contact: [email protected]


Data base content microwave winds

Data base contentMicrowave winds

Contact: [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 reference sst

Data base contentreference_SST

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)


Data base content saharan dust index

Data base contentSaharan Dust Index

Contact: [email protected]


The ghrsst pp aladin dw data base

SST VALIDATION : www.osi-saf.org


The ghrsst pp aladin dw data base

SST VALIDATION :

Inter comparison 2006


The ghrsst pp aladin dw data base

SST VALIDATION :

Inter comparison 2005


The ghrsst pp aladin dw data base

SSI VALIDATION :

www.osi-saf.org


The ghrsst pp aladin dw data base

DLI VALIDATION :

www.osi-saf.org


The ghrsst pp aladin dw data base

Impact of Resolutionfull 24 hrs cycles DT > 0.5 , 10UTC < tpeak<19UTCDT_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.

?


The ghrsst pp aladin dw data base

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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