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

description

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. - PowerPoint PPT Presentation

Transcript of The GHRSST_PP ALADIN DW data base

Page 1: 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

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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/

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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

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Data base contentAnalyzed SST

Contact: Hervé[email protected]

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Data base contentALADIN outputs

Contact: Hervé[email protected]*ECMWF fluxes at 6, 12, 18 and 24 only

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Data base contentECMWF outputs

Contact: [email protected]

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Data base contentDT_Analysis

Error= [error_analysis2+ error_SST2]1/22: -0.304, 0.633: -0.016, 0.5964: -0.007, 0.4125: 0.035, 0.384 Contact: [email protected]

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Data base contentreference_SST

Contact: [email protected]

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Data base contentradiative fluxes

WARNING: radiative fluxes are 30 minutes apart from SST DataEx: time=1 correspond to SSI approximate time of 0030 UTC…(over the Med. About 5 mns before nominal time)

Contact: [email protected]

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Data base contentSaharan Dust Index

Contact: [email protected]

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SST VALIDATION : www.osi-saf.org

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SST VALIDATION :Inter comparison 2006

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SST VALIDATION :Inter comparison 2005

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SSI VALIDATION :www.osi-saf.org

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DLI VALIDATION :www.osi-saf.org

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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.

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2: -0.386, 0.7143: -0.122, 0.3994: -0.172, 0.6155: 0.068, 0.362

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

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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, hourlyAvailable 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, dailyAvailable under ftp://ftp.ifremer.fr/ifremer/cms

- NETCDF- from January 2003