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Ocean Synthesis/Reanalysis DirectoryThe following list provides basic information on the available ocean syntheses. Links to the project web pages and access to monthly mean data of the products via HTTP, FTP or OPeNDAP protocol and visualization with Live Access Server (LAS) are included if available and marked with an icon. The list item title contains the project name, domain and time period. Click on the project name to get more information. Currently only a limited number of products are available but the catalog will be completed in the next months.
Institution: CLS
Model: None Resolution: 1/3° Mercator grid, Surface to 1500 m (24 z-levels) Data assimilated: AVISO SLA + CORA3 T/S + Daily Reynolds SST Assimilation method: Forcing and relaxation used: Download Data: Contact: Guinehut Stéphanie: sguinehut (at) cls.fr References: Guinehut S., A.-L. Dhomps, G. Larnicol and P.-Y. Le Traon, 2012: High resolution 3D temperature and salinity fields derived from in situ and satellite observations. Ocean Sci., 8, 845-857, doi:10.5194/os-8-845-2012. Mulet, S., M.-H. Rio, A. Mignot, S. Guinehut and R. Morrow, 2012: A new estimate of the global 3D geostrophic ocean circulation based on satellite data and in situ measurements. Deep-Sea Res. II., 77-80, 70-81, doi:10.1016/j.dsr2.2012.04.012. Information:
Model: MOM4 + Chen hybrid mixed layer
Resolution: Vertical 47 levels Data assimilated: Satellite, SST, SSH, Argo, XBT, TAO Assimilation method: Simplified ensemble Kalman Filter Forcing and relaxation used: No global constraints Download Data: Contact: References: Information: cmar.csiro.au
Model: OPA8.2
Resolution: Horizontal 2°x2° (~0.5° meridional at the tropics) Vertical 31 levels Data assimilated: Temperature profiles from ENACT dataset, SST from Reynolds (from 1982) and HadISST (before 1982) Salinity profiles from ENACT dataset Assimilation method: Multivariate 3D-Var (OPAVAR) for T and S profiles Forcing and relaxation used: Forcing daily ERA40 fluxes, with bias-corrected P-E Relaxation SST relaxation (-200W/m2 k) no SS relaxation 3D Levitus damping (3 year time-scale) Download Data: OPeNDAP / HTTP from ensembles.ecmwf.int Contact: References: ECMWF - ENSEMBLES RT1 Home, ECMWF - CERFACS Ocean Analysis Disclaimer Information: CERFACS
Institution: NOAA Center for Weather and Climate Prediction (NCWCP)
Model: Resolution: Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: Yan Xue: yan.xue (at) noaa.gov References: Information:
Institution: CMCC
Model: NEMO3.2 Resolution: 1/4° - 1442x1021, 50 z-levels, partial steps Data assimilated: EN3_v2a T/S (XBT corrected) + AVISO SLA Assimilation method: weekly - FGAT Forcing and relaxation used: ERA interim. 6h fields - Heat flux correction using GEWEX, Bulk formulae, Large and Yeager, 2009 Download Data: Contact: Andrea Storto: andrea.storto (at) cmcc.it References: Information:
Model: no model
Resolution: Horizontal 1.25°x1.25° Vertical 20 levels, 5 in top 50m Data assimilated: Temperature subsurface data from bottles MBTs, XBTs, CTDs, buoys ARGO WOD01 for the period 1950-55 ENACT dataset from 1956 onwards (additional obs and quality control) SST obs from HadISST Salinity subsurface data from bottles MBTs, XBTs, CTDs, buoys ARGO WOD01 for the period 1950-55 ENACT dataset from 1956 onwards (additional obs and quality control) Assimilation method: Statistical optimal interpolation Covariances computed from a transient integration of HadCM3 (from 1950 to 1999) Forcing and relaxation used: Download Data: OPeNDAP from ICDC, FTP from ICDC, View in LAS from ICDC Contact: Doug Smith, doug.smith (at) metoffice.gov.uk References: Smith, D. M. and J. M. Murphy, 2007, An objective ocean temperature and salinity analysis using covariances from a global climate model, Journal of Geophysical Research, 112, C02022, doi:10.1029 / 2005JC003172 Information: metoffice
Model: HOPE
Resolution: Horizontal 1°x1° with equatorial refinement (0.3). 29 vertical levels, about 10m-15m level thickness in upper 200 m. Data assimilated: Temperature and Salinity profiles from the EN2 database (1959-2006), including XBT, CTD, Argo, Mooring, and from realtime GTS thereafter. Altimeter sea level anomalies maps and trends from AVISO. Assimilation method: Multivariate OI + Bias correction Forcing and relaxation used: ER40 (precip corrected) daily fluxes from 1959-2002. ECMWF operational NWP fluxes therefater. SST as in ERA-40 until 1982 and the weekly NOAA oiv2 1x1 from 1982 onwards. Download Data: OPeNDAP from ICDC, FTP from ICDC, View in LAS from ICDC Contact: Magdalena Balmaseda, Magdalena.Balmaseda (at) ecmwf.int References: Balmaseda M. A., A. Vidard and D.L.T. Anderson, 2008: The ECMWF Ocean Analysis System: ORA-S3. Mon. Wea. Rev. 136,3018-3034; The ECMWF System 3 ocean analysis system, Technical Memorandum Information: ECMWF - Ocean Analysis
Model: NEMO V3.0
Resolution: (ORCA1_Z42): Horizontal 1°x1° with equatorial refinement (0.3). 42 vertical levels, about 10m-15m level thickness in upper 200m. Data assimilated: Temperature and Salinity profiles from the EN3 v2a XBT bias corrected database (1958-2009), including XBT, CTD, Argo, Mooring, and from realtime GTS thereafter. Along track altimeter sea level anomalies and global trends from AVISO. SST and sea-ice are from the ERA-40 archive prior to November 1981, from the NCEP OI v2 weekly product (1981 until December 2009) and , and from OSTIA analysis from January 2010 onwards.The SST and sea-ice information is used to constrain the upper level ocean temperature via a newtonian relaxation scheme. Assimilation method: NEMOVAR in its 3D-var FGAT mode. The assimilation window is 10 days. A bias correction scheme is used to correct the model/forcing errors. Forcing and relaxation used: Daily surface fluxes of heat, momentum and fresh water are used. Prior to 1989, the surface fluxes are from the ERA-40 atmospheric reanalysis. From the period 1989-2009, the surface fluxes are from ERA-Interim reanalysis. From 2010 onwards, when ORAS4 started operational running, daily surface fluxes were derived from the operational ECMWF atmospheric analysis. Download Data: OPeNDAP at ICDC, FTP at ICDC, View in LAS at ICDC Contact: Magdalena Balmaseda, Magdalena.Balmaseda (at) ecmwf.int References: Balmaseda M.A,. K. Mogensen, A. Weaver, 2013: Evaluation of the ECMWF Ocean Reanalysis ORAS4. Q. J. R. Meteorol. Soc. DOI:10.1002/qj.2063 Mogensen, K., M. Alonso Balmaseda, A. Weaver, 2012: The NEMOVAR ocean data assimilation system as implemented in the ECMWF ocean analysis for System4. ECMWF Thechnical Memorandum 668. 59 pages. Information: http://www.ecmwf.int/products/forecasts/d/charts/oras4/reanalysis/
Model: HOPE
Resolution: Horizontal 1°x1° with equatorial refinement (0.3). 29 vertical levels, about 10m-15m level thickness in upper 200 m. Data assimilated: Temperature and Salinity profiles from the EN3 database (1959-2007), including XBT, CTD, Argo, Mooring, and from realtime GTS thereafter. Altimeter sea level anomalies maps and trends from AVISO, plus XBT corrections (Wijffels et al 2008). Operational GTS data thereafter. Assimilation method: Multivariate OI + Bias correction Forcing and relaxation used: ER40 (precip corrected) daily fluxes from 1959-2002. ECMWF operational NWP fluxes therefater. SST as in ERA-40 until 1982 and the weekly NOAA oiv2 1x1 from 1982 onwards. Download Data: OPeNDAP from ICDC, FTP from ICDC, View in LAS from ICDC Contact: Magdalena Balmaseda, Magdalena.Balmaseda (at) ecmwf.int References: ECMWF - Ocean Analysis; ECMWF - ENSEMBLES RT1 Home Information: ECMWF - Ocean Analysis
Model: NEMO v3.0
Resolution: ORCA1 configuration (about 1x1 horizontal resolution with equatorial refinement (0.3). 42 vertical levels, about 10m-15m level thickness in upper 200m Data assimilated: Temperature and Salinity profiles from the EN3 database (1957/09/01-2009/12/31), including XBT, CTD, Argo, Mooring Assimilation method: Multivariate 3D-var + bias correction Forcing and relaxation used: ER40 (precip corrected) daily fluxes from 1959-1988 and ERA-Interim thereafter. SST as in ERA-40 until 1982 and the weekly NOAA oiv2 1x1 from 1982 onwards. Download Data: OPeNDAP / HTTP from ICDC, FTP from ICDC Contact: Magdalena Balmaseda,Magdalena.Balmaseda (at) ecmwf.int; Kristian.Mogensen, Kristian.Mogensen (at) ecmwf.int References: Balmaseda M., K. Mogensen, F. Molteni, A. Weaver, 2010: The NEMOVAR-COMBINE ocean re-analysis. COMBINE Technical report No. 1. Information: NEMOVAR COMBINE
Model: MITgcm
Resolution: Four different configurationss v2.xx 1°x1°, 23 levels; v3.xx as v2 but with sea ice; v4. 1°x1° (1/3° equator), 43 level, global LLC grid with sea ice. SOSE 1/6°, 43 levels Data assimilated: All alt. SLA,;GRACE- based MDT; Gouretski/Koltermann clim., all Argo, WOCE hydrog., SEaOS elephant seal; NCEP reanal.; Reynolds /TMI/AMSR-E SST Assimilation method: Forcing and relaxation used: Download Data: OPeNDAP from ecco-group.org Contact: Patrick Heimbach,heimbach (at) mit.edu References: C. Wunsch and P. Heimbach, 2006, Estimated Decadal Changes in the North Atlantic Meridional Overturning Circulation and Heat Flux 1993-2004, J. Phys. Oceanogr. 36, 2012-2024 Information: ecco-group.org
Model: MITgcm
Resolution: 0.3 to 1-deg, 46 levels Data assimilated: sea level (altimetry), temperature profiles (Argo,XBT, CTD) Assimilation method: Kalman filter and RTS smoother Forcing and relaxation used: Daily NCEP fluxes Download Data: OPeNDAP, HTTP, LAS Contact: Ichiro Fukumori, fukumori (at) jpl.nasa.gov References: http://ecco.jpl.nasa.gov/external/ Information: ECCO Near Real-Time Analysis
Model: MITgcm
Resolution: 1° Data assimilated: CTD, MBT/XBT, Argo, TOGA/TAO,T/P-ERS- ENVISAT,Jason, AMSR/E/TMI SST, Quicksact, mean surface drifter velocity, GRACE SSH, Levitus (1994) NCEP RA1 Assimilation method: 4D-VAR (adjoint) method controlling the T/S initial conditions and two daily air-sea fluxes (heat, fresh water, and momentum fluxes) Forcing and relaxation used: Daily forcing (twice a day wind) for first guess momentum, net heat , shortwave heat and fresh water fluxes from NCEP-1. No relaxation used. Download Data: OPeNDAP / HTTP from ICDC, FTP from ICDC, View in LAS from ICDC Contact: Armin Köhl, armin.koehl (at) zmaw.de References: Köhl A., B. Cornuelle, and D. Stammer (2007). Interannual to Decadal Changes in the ECCO Global Synthesis, J. Phys. Oceanogr., 37, 313-337 Information: ecco.ucsd.edu
Model: MITgcm
Resolution: Horizontal 18 x 18 km Vertical 50 levels, 10 in top 100m Data assimilated: Assimilation method: Green's functions Estimated via assimilation Forcing and relaxation used: Estimated via assimilation Download Data: OPeNDAP from ICDC, FTP from ICDC, View in LAS from ICDC Contact: Dimitris Menemenlis, menemenlis(at)jpl.nasa.gov References: D. Menemenlis, J. Campin, P. Heimbach, C. Hill, T. Lee, A. Nguyen, M. Schodlock, and H. Zhang, 2008: ECCO2: High resolution global ocean and sea ice data synthesis. Mercator Ocean Quarterly Newsletter, 31, 13-21 Information: ecco2.org
Model: No dynamical model
Resolution: Analysis grid Horizontal 1.25°x1.25° (meridional spacing decreasing to ~0.3° near the equator) Vertical 40 levels Product grid Horizontal 1°x1° Vertical 31 levels Data assimilated: Subsurface temperature and salinity observational data. (Met Office EN2 and EN3 in situ datasets) Assimilation method: Optimal interpolation , No forcing. Relaxation Relaxes towards climatology in the absence of data Forcing and relaxation used: No forcing. Relaxation Relaxes towards climatology in the absence of data Download Data: HTTP from hadobs.metoffice.com Contact: Simon Good, simon.good (at) metoffice.gov.uk References: Met Office - EN3: quality controlled subsurface ocean temperature and salinity data Information: hadobs.org
Model:
Resolution: Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: usgodae.org
Model: UM
Resolution: Horizontal 1°x1° Vertical 20 levels Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: metoffice.gov.uk
Model: UM
Resolution: Horizontal 1/9°x1/9° Vertical 20 levels Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: metoffice.gov.uk
Model: UM
Resolution: Horizontal 1/9°x1/9° Vertical 20 levels Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: metoffice.gov.uk
Model: MITgcm
Resolution: Horizontal 1°x1° Vertical 23 levels Data assimilated: CTD, MBT/XBT, Argo, TOGA/TAO,T/P-ERS- ENVISAT,Jason, AMSR/E/TMI SST, Quicksact, mean surface drifter velocity, GRACE SSH, Levitus (1994) NCEP RA1 Assimilation method: 4D-VAR (adjoint) method controlling the T/S initial conditions and ten daily air-sea fluxes (heat, fresh water, and momentum fluxes) Forcing and relaxation used: Daily forcing (twice a day wind) for first guess momentum, net heat , shortwave heat and fresh water fluxes from NCEP-1. No relaxation used. Download Data: OPeNDAP / HTTP from ICDC, FTP from ICDC, View in LAS from ICDC Contact: Armin Köhl, armin.koehl (at) zmaw.de References: Köhl A. and D. Stammer (2008), Variability of the Meridional Overturning in the North Atlantic from the 50 years GECCO State Estimation, J. Phys. Oceanogr., 38, 1913-1930. Information: ifm.zmaw.de
Model: MITgcm
Resolution: 1x1/3°, 50 z-levels, partial cells Data assimilated: EN3_v2a T/S (XBT corrected)+ AVISO along track SLA , GOCO MDT, HadISST, AMSRE SST, WOA09 climatology Assimilation method: 4D-VAR (adjoint) method Forcing and relaxation used: NCEP RA1 atm. Fields, Bulk formulae, Large and Yeager, 2009 Download Data: Contact: Armin Köhl, armin.koehl (at) zmaw.de References: Information:
Model: GFDLs Ensemble Coupled Data Assimilation (ECDA) system
Resolution: CM2.1: 360 by 200, 50 z-levels, Partial steps Data assimilated: NCEP reanalysis winds, temperature, and surface pressure (NCEP/NCAR: 1960-1978, NCEP/DOE: 1979-ongoing). HadSST(1960-1980), OISST(1981-ongoing), WOD09(XBT, CTD, OSD, MBT, MRB: 1960-2008), Pseudo salinity(1993-2002), GTSPP(XBT and MRB:2009-ongoing), Argo (2000-ongoing) Assimilation method: Ensemble Kalman Filter Forcing and relaxation used: Atmospheric component of the coupled model Download Data: Contact: You-Soon.Chang you-soon.chang (at) noaa.gov References: Zhang S., M. J. Harrison, A. Rosati, and A. T. Wittenberg, 2007: System design and evaluation of coupled ensemble data assimilation for global oceanic climate studies. Mon. Weather Rev., 135(10), doi:10.1175/MWR3466.1 Information: gfdl.noaa.gov
Institution: UK-Met
Model: GloSea OGCM Resolution: Analysis grid Horizontal 1.25°x1.25° (meridional spacing decreasing to ~0.3° near the equator) Vertical 40 levels Product grid Horizontal 1°x1° Vertical 31 levels Data assimilated: EN2 subsurface in situ temperature and salinity observational data Assimilation method: Optimal interpolation including vertical adjustment of S profile from T assimilation Forcing daily ERA40 fluxes with corrected precipitation Relaxation SST relaxed to HadISST up to 1982 and Reynolds SST OIv2 from 1982 (approx 3 day timescale) subsurface (all gridpoints, all levels) T and S relaxation (3 years timescale) towards running-3-monthly Levitus climatology Forcing and relaxation used: Download Data: Contact: Matthew Martin matthew.martin (at) metoffice.gov.uk and Drew Peterson: drew.peterson (at) metoffice.gov.uk References: Information:
Institution: GSFC/NASA
Model: Resolution: 1/3° meridional 5/8° zonal Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: Guillaume Vernieres: Guillaume.Vernieres-1 (at) nasa.gov References: Information: gmao.gsfc.nasa.gov
Institution: Mercator Ocean
Model: NEMO3.1 Resolution: 1/4° - 1442x1021, 75 z-levels. 1-m surface level, 31 levels in the first 200-m depth (1-20m thick). Partial steps Data assimilated: CORA3.1 T/S + Reynolds 0.25° AVHRR-only SST + AVISO along-track SLA Assimilation method: SAM2V1 - SEEK filter + 3DVAR bias correction based on past T/S innovations, weekly - FGAT - IAU Forcing and relaxation used: ERA-Interim, 3H turbulent fluxes, SW and LW daily aver. + corrections based on GEWEX, precip daily, Bulk formulae, Large and Yeager, 2009 Download Data: Contact: Nicolas Ferry: nferry (at) mercator-ocean.fr References: Information: http://www.mercator-ocean.fr/fre/actualites-agenda/newsletter/newsletter-Newsletter-44-Various-areas-of-benefit-using-the-Mercator-Ocean-products
Model:
Resolution: Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: hycom.org
Model: OPA8.2
Resolution: Horizontal 2°x2° (~0.5° meridional at the tropics) Vertical 31 levels Data assimilated: In situ T and S profiles from ENACT and ENSEMBLES datastes until December 2005. Coriolis data after this date. Assimilation method: Reduced Order Multivarite OI with bivariate T and S EOFs Forcing and relaxation used: Forcing daily ERA40 fluxes until august 2002, operational ECMWF fluxes after this date Relaxation SST relaxed to Reynolds (strong relaxation). No SSS relaxation. 3D T and S relaxation (3 year timescale) toward Levitus Download Data: OPeNDAP / HTTP from ensembles.ecmwf.int Contact: References: ECMWF - INGV Coupled Model Documentation Information:
Model: MOMv3
Resolution: Horizontal 1°x1° Vertical 36 levels, 10m res.in top 50m Data assimilated: Temperature data from FNMOC, Argo climatology from WOA98 OISST Salinity data from FNMOC, Argo climatology from WOA98 Altimetry Topex/POSEIDON Assimilation method: 4D-VAR method controlling the initial conditions and 10daily air-sea fluxes (heat, fresh water, and momentum fluxes) Forcing and relaxation used: Forcing 10daily forcing for first guess: momentum, sensible heat , latent heat, long-wave radiative, and fresh water fluxes from NCEP2 reanalysis data, shortwave from ISCCP data. Relaxation T,S below 2000m are relaxed to WOD98 climatology. Download Data: Contact: References: Information: http://www.jamstec.go.jp/frcgc/k7-dbase2/eng/
Institution: JAMSTEC/RIGC
Model: MOM3-based OGCM Resolution: Horizontal 1°x1°, 45 z-level partial steps Data assimilated: EN3 T/S(XBT corrected) + AVISO SLA + Argo T/S + Reynolds SST Assimilation method: 4D-VAR adjoint Forcing and relaxation used: Optimized (first guess is NCEP), Flux Download Data: Contact: Shuhei Masuda: smasuda (at) jamstec.go.jp References: Information: http://www.jamstec.go.jp/drc/maps/e/kadai/clm/clm_or.html
Institution: JAMSTEC/DrC
Model: MOM3-based OGCM Resolution: Horizontal 1°x1°, 45 z-level partial steps Data assimilated: FNMOC, OISST, T/P SLA Assimilation method: 4D-VAR adjoint Forcing and relaxation used: coupled Download Data: Contact: Yoichi Ishikawa: ishikaway (at) jamstec.go.jp References: Information: http://www.jamstec.go.jp/drc/maps/e/kadai/clm/clm_or_ap4.html
Institution: LEGOS
Model: None Resolution: 1/4° Data assimilated: None Assimilation method: None Forcing and relaxation used: None Download Data: Contact: Benoit Meyssignac: Benoit.Meyssignac (at) legos.obs-mip.fr References: Meyssignac B., Becker M., Llovel W. and Cazenave A., 2012a. An assessment of two-dimensional past sea level reconstructions over 1950-2009 based on tide gauge data and different input sea level grids. Survey in Geophysics, online. doi :10.1007/s10712-011-9171-x9171-x. Information:
Model: OPA8.1
Resolution: Horizontal 1/3°x1/3° Vertical 43 levels Data assimilated: SLA, SST, T&S profiles Assimilation method: 3D OI with multivariate 1D EOFs Forcing ERA40, daily, bulk formulation Relaxation None Forcing and relaxation used: Download Data: Contact: References: Information: mercator-ocean.fr
Model: OPA8.2
Resolution: Horizontal 2°x2° (~0.5° meridional at the tropics) Vertical 31 levels Data assimilated: SLA, SST, T&S profiles Singular Evolutive Extended Kalman (SEEK) filter 3D time evolutive covariances Forcing ERA40, daily, bulk formulation Relaxation SST relaxed to Reynolds SST OIv2 (weak relax.) SSS relaxed to Levitus monthly clim. (weak relax.). 3D T&S relaxation (3 years timescale) towards Levitus. Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: mercator-ocean.fr
Model: OPA8.2
Resolution: Horizontal 2°x2° (~0.5° meridional at the tropics) Vertical 31 levels Data assimilated: SLA, SST, T&S profiles 3D-VAR (OPAVAR) 3D multivariate covariances Forcing ERA40, daily, bulk formulation Relaxation SST relaxed to Reynolds SST OIv2 (strong relax.) no SSS relaxation. 3D T&S relaxation (3 years timescale) towards Levitus. Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: mercator-ocean.fr
Model: JMA/MRI-CGCM (Coupled Atmosphere-Ocean model for the current operational seasonal forecast in JMA. The ocean component is MRI.COM Ver. 2.)
Resolution: Lat: 0.3-1°, Lon: 1°, 50 Levels (Max level: 5000m. Max thickness 750m. The layer thickness is equal to or less than 10m above 200m depth.), 75°S-75°N, 0-360°E (without the North Pole) Data assimilated: T, S profiles (WOD01, GTSPP, TAO/TRITON), COBE-SST (Gridded SST data for the climate analysis compiled in JMA), Satellite Sea Surface Height Data (Along track data of TOPEX/Poseidon, Jason-1, Jason-2, ERS-1. ERS-2, and ENVISAT subtracted from Ssalto/Duacs delayed-time multimission altimeter product.) Assimilation method: MOVE Ver. 2 (3DVAR with coupled T-S EOF modes), Quasi-coupled Data assimilation (Weakly coupled data assimilation without assimilating atmospheric observation data) Forcing and relaxation used: Forcing data: Sea surface output of the atmospheric part of the coupled model Download Data: Contact: YOSUKE FUJII, yfujii (at) mri-jma.go.jp, (Japan Meteorological Agency/ Meteorological Research Institute) References: Y. Fujii, T. Nakaegawa, S. Matsumoto, T. Yasuda, G. Yamanaka, and M. Kamachi (2009): Coupled climate simulation by constraining ocean fields in a coupled model with ocean data. J. Climate, 22(20), 5541-5557. Y. Fujii, M. Kamachi, T. Nakaegawa, T. Yasuda, G. Yamanaka, T.Toyoda, K. Ando, and S. Matsumoto, 2011: Assimilating Ocean Observation data for ENSO monitoring and forecasting. Climate Variability - Some Aspects, Challenges and Prospects, Ed: A. Hannachi, ISBN:979-953-307-236-3, InTech, Rijeka, Croatia 75-98, DOI: 10.5772/30330. Available from: http://www.intechopen.com/books/climate-variability-some-aspects-challenges-and-prospects/assimilating-ocean-observation-data-for-enso-monitoring-and-forecasting Information: http://www.mri-jma.go.jp/Dep/oc/oc.html
Model: MRI.COM Ver. 3 (The version submitted to the CLIVAR-WGOMD CORE2 project)
Resolution: Lat: 0.5°, Lon: 1° (Tripolar Coordinate), 51 Levels (Max level: 6350m. Max thickness 600m. The layer thickness is equal to or less than 10m above 200m depth.), 90°S-90°N, 0-360°E (The Whole Globe) Data assimilated: T, S profiles (WOD01, GTSPP) Assimilation method: MOVE Ver. 3 (3DVAR-FGAT with coupled T-S EOF modes) Forcing and relaxation used: The common forcing data for CLIVAR-WGOMD CORE2 project Download Data: Contact: YOSUKE FUJII, yfujii (at) mri-jma.go.jp, (Japan Meteorological Agency/ Meteorological Research Institute) References: Tsujino H, M. Hirabara, H. Nakano, T. Yasuda, T. Motoi, G. Yamanaka (2011), Simulating present climate of the global ocean-ice system using the Meteorological Research Institute Community Ocean Model (MRI.COM): simulation characteristics and variability in the Pacific sector, J. Oceanogr., 67, 449--479. (For the ocean model) Usui, N., S. Ishizaki, Y. Fujii, H. Tsujino, T. Yasuda, and M. Kamachi (2006), Meteorological Research Institute Multivariate Ocean Variational Estimation (MOVE) System: Some early results, Adv. Spa. Res., 37, 806--822. (For the assimilation scheme) Information: http://www.mri-jma.go.jp/Dep/oc/oc.html
Model: MOMv3
Resolution: Horizontal 1°x1° (1/3° meridional at the tropics) Vertical 40 levels, 10m res.in top 200m Data assimilated: Temperature XBTs and TAO/Triton/PIRATA, Argo Salinity synthetic based on T(z) and local TS-correlation Altimetry Jason-1 altimery Forcing Momentum, shortwave, longwave, sensible heat, latent heat, P-E fluxes from the NCEP Reanalysis 2 Relaxation surface temperature to Reynolds' weekly SST OI, surface salinity to monthly Levitus climatological SSS Assimilation method: Forcing and relaxation used: Download Data: Contact: Yan Xue: yan.xue (at) noaa.gov References: Information: http://www.cpc.ncep.noaa.gov/products/GODAS/
Institution: NOAA/NODC
Model: Resolution: Data assimilated: Assimilation method: Forcing and relaxation used: Download Data: Contact: Tim Boyer tim.boyer (at) noaa.gov References: Information:
Institution: BOM
Model: acom2 (mom2) Resolution: Lat: 0.5-1.5, Lon:2, 25 levels Data assimilated: EN3 T/S + NCEP OI v2 weekly SST Assimilation method: EnKF Forcing and relaxation used: ERA40(prior 2002) and NCEP2 (2002-2010), Bulk formulae Download Data: Contact: Yonghong Yin: Y.Yin (at) bom.gov.au References: Yin, Y., O. Alves, and P. R. Oke, 2011: An ensemble ocean data assimilation system for seasonal prediction. Mon. Wea. Rev., 139, 786-808. Information:
Model: ACOM2 (based on MOM2)
Resolution: Horizontal 2° (0.5° meridional at the tropics, 1.5° at high latitudes) Vertical 27 levels, 15m top layer Data assimilated: In situ temperature and salinity profiles from the ENACT dataset Multi-variate ensemble OI with time evolving ensemble covariances (pseudo EnKF) Forcing ERA40 6 hourly stress, heat and fresh water. Relaxation Strong SST relaxation (3 days timescale) to Reynolds. Surface salinity relaxed to Levitus (30 days). Assimilation method: Forcing and relaxation used: Download Data: Contact: References: Information: poama.bom.gov.au
Institution: Mercator Ocean
Model: NEMO3.1 Resolution: 1/4° - 1442x1021, 50 z-levels. 1-m surface level, 25 levels in the first 200-m depth (1-27m thick). Partial steps Data assimilated: RT Coriolis T/S + RTG 0.5° SST + along-track AVISO SLA Assimilation method: SAM2V1 - SEEK filter, weekly - FGAT - IAU Forcing and relaxation used: ECMWF 3h operational fluxes, Bulk formulae, Large and Yeager, 2009 Download Data: Contact: Fabrice Hernandez: fhernandez (at) mercator-ocean.fr References: Information:
Model: POP2.x
Resolution: Horizontal 0.25° on average (0.25°x0.4° tropics) Vertical 40 levels, 10m top layer Data assimilated: WOD09 standard level T&S, ICOADS SST Satellite SST Assimilation method: Forcing and relaxation used: ERA-40 and ERA-interim surface winds, NCEP variables for bulk formulae, GPCP precipitation, climatological river runoff Download Data: OPeNDAP from soda.tamu.edu, View in LAS from ICDC Contact: Howard Seidel, hank (at) tamu.edu References: J.A. Carton and B.S. Giese, 2008: A reanalysis of ocean climate using Simple Ocean Data Assimilation (SODA), Monthly Weather Review, 136, 2999-3017. J. A. Carton, G. Chepurin, X. Cao, and B. S. Giese, 2000: A Simple Ocean Data Assimilation analysis of the global upper ocean 1950-95. Part I: Methodology, Journal of Physical Oceanography, 30, 311-326. Information: soda.tamu.edu
Model: POP2.x Resolution: Horizontal 0.25° on average (0.25°x0.4° tropics) Vertical 40 levels, 10m top layer Data assimilated: WOD09 standard level T&S, ICOADS 2.5 SST Assimilation method: Forcing and relaxation used: 20CRv2 surface wind stress and variables for bulk formulae Download Data: OPeNDAP from soda.tamu.edu, View in LAS from ICDC Contact: Howard Seidel, hank (at) tamu.edu References: J.A. Carton and B.S. Giese, 2008: A reanalysis of ocean climate using Simple Ocean Data Assimilation (SODA), Monthly Weather Review, 136, 2999-3017. J. A. Carton, G. Chepurin, X. Cao, and B. S. Giese, 2000: A Simple Ocean Data Assimilation analysis of the global upper ocean 1950-95. Part I: Methodology, Journal of Physical Oceanography, 30, 311-326. Information: soda.tamu.edu
Institution: University of Reading
Model: NEMO2.3 Resolution: 1/4° - 1442x1021, 46 z-levels. From 6m at surface to 250m at bottom. Partial steps Data assimilated: EN3_v2a T/S Assimilation method: OI method, 5d analysis with IAU Forcing and relaxation used: ERA interim. 6h fields, Bulk formulae, Large and Yeager, 2009 Download Data: Contact: Maria Valdivieso: m.valdiviesodacosta (at) reading.ac.uk References: Information: |
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