1 / 43

MyOcean2 First Annual Meeting – 16-17 April 2013

WP 18 Multi Year Assessment MyOcean2 First Annual Meeting – Cork /16-17 April 2013. MyOcean2 First Annual Meeting – 16-17 April 2013. Work Package Main Objectives.

milt
Download Presentation

MyOcean2 First Annual Meeting – 16-17 April 2013

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WP 18Multi YearAssessment MyOcean2 First Annual Meeting – Cork /16-17 April 2013 MyOcean2 First Annual Meeting – 16-17 April 2013

  2. Work Package Main Objectives The overall goal is to improve, harmonize and consolidate the work done in MyOcean concerning the production and assessment of global and regional re-analyses and reprocessingof data • For the TACs: toproduce in a coordinated way with MFCs and distribute reprocessed data sets for data assimilation and CAL/VAL purposes • For the MFCs: to produce in a coordinated way a set of global and regional reanalyses for the physics (covering the past 20 years or more) and biogeochemistry using the data sets specially delivered by the TACs • For both TACs and MFCs: to implement assessment protocols for MyOcean2 products and to produce reports for downstream services (institution and scientific users) MyOcean2 First Annual Meeting – 16-17 April 2013

  3. Partnership 18.2.1 CAL/VAL Definition MERCATOR, CLS, NERSC 18.3.4 SST and Arctic Sea Ice IFREMER, DMI, CNR 18.3.2 Temperature – Salinity IFREMER 18.4.1 S&T coordination CMCC 18.3.5 Ocean Color CNR 18.2.2 Reanalysis Assessment MERCATOR + all partners 18.4.4 Product documentation and synthesis material ALL 18.3.3 Sea Level CLS 18.3.6 Assessment of REP data set before assimilation CLS 18.2.3 SPC products INGV + many others… 18.3.1 S&T coordination CLS 18.4.3 Regional Physical and Biogeochemical Reanalysis INGV 18.4.2 Global Ocean Reanalysis MERCATOR Multi-year assessment Coordination CMCC WP 18.1 WP 18 Reanalysis Production Assessment and usefulness with respect to downstream appl. Reprocessing of satellite and in situ input Data WP 18.4 MERCATOR WP 18.2 MERCATOR WP 18.3 CLS MyOcean2 First Annual Meeting – 16-17 April 2013

  4. Partnership 1)RAN: CMCC, MERCATOR, UREAD, ECMWF, CNRS REP: IFREMER,CLS, CNRS,METNO 2) RAN: NERSC REP: IFREMER, IMR 22 partners 3) RAN: DMI, SMHI REP: DMI, BSH, PML 4) RAN: NERC, METOFFICE, IMR REP: BSH, PML 5) RAN: MERCATOR REP: IFREMER 6) RAN: INGV REP: OGS,CNR 7) RAN: MHI-NASU, IOBAS, INCDM REP: OGS,CNR MyOcean2 First Annual Meeting – 16-17 April 2013

  5. Main Subjects in WP18 • Cal/Valactivities (18.2.1-18.2.2) • Major Accounts and SpecificCoreProducts (18.2.3) • REPs (18.3) • RANs (18.4) MyOcean2 First Annual Meeting – 16-17 April 2013

  6. Achievements wrtworkplan: (CAL/VAL activities) • A WG on Cal/Val definition for reanalyseswas set up (MERCATOR, NERSC, CMCC, OGS, SMHI, ECMWF, U-READING, INGV) • Objective: • DEFINE / IMPROVE THE REANALYSES VALIDATION METHOD • harmonize the validation methods used for the reanalysis assessment  more homogeneity in the QuIDs • establish a list of reference data sets used for validation • if possible, follow the recommendations from WP17 • consider high frequency fields in the validation of reanalyses • A document specifying the reanalysis Cal/Val has been produced and sent to WP18 partners. The document will be discussed and validated during WP18 special session. • No common validation approach for the reprocessed observations due to the specificities of each TAC (observations are very different). More important to focus on the link with MFC. MyOcean2 First Annual Meeting – 16-17 April 2013

  7. Achievements wrt workplan Validationdonewithproductsfrom SL-TAC WP18.2: Cal/Val production: MyOcean global ocean reanalyses at ICR4 conference (Washington DC): see www.icr4.org: MyOcean2 First Annual Meeting – 16-17 April 2013

  8. Achievements wrt workplan Time-mean Net Heat Flux 1993-2009 (Downwards) WP18.2: Cal/Val production: MyOcean global ocean reanalyses at ICR4 conference: WP18.2: Cal/Val production: Mercator Newsletter highlighting the skill of MyOcean eddy-permitting global ocean reanalyses: N. Ferry, B. Barnier, G. Garric, K. Haines , S. Masina , L. Parent, A. Storto , M. Valdivieso, S. Guinehut and S. Mulet, 2012: NEMO: the modeling engine of global ocean reanalyses, , Mercator Ocean Quaterly Newsletter #46, Special Issue NEMO-MyOcean, November 2012, p60-66

  9. Achievements wrt workplan Atlantic Merid. Overturning Circulation at 26,6°N WP18.2: Cal/Val production: Mercator Newsletter highlighting the skill of MyOcean eddy-permitting global ocean reanalyses: MyOcean2 First Annual Meeting – 16-17 April 2013

  10. Achievements wrt workplan Atlantic Merid. Overturning Circulation ANOMALY at 26,6°N WP18.2: Cal/Val production: Mercator Newsletter highlighting the skill of MyOcean eddy-permitting global ocean reanalyses: Each member provides positive information to the ensemble-mean MyOcean2 First Annual Meeting – 16-17 April 2013

  11. Achievements in Production Centres No SEA ICE conc. ASSIM WITH SEA ICE conc. ASSIM G2V1 - CERSAT G2V3 – CERSAT March 1998 • R&D activities: data assimilation of sea ice concentration • (MERCATOR OCEAN). Will be part of next global ocean reanalysis release G2V3 – CERSAT G2V1 - CERSAT Sept. 1998 MyOcean2 First Annual Meeting – 16-17 April 2013 MyOcean2 First Annual Meeting – 17-18 April 2013

  12. Achievements in Production Centres G. Garric, Mercator ERAI ARMOR3D (OBS) ERAI/P corrected • R&D activities: development of ERA-Interim precipitation corrections • NWP reanalyses exhibit large biases in precipitations. • Precipitation correction based on GPCP observations to correct ERAI precipitations Mean 2009 SSS ERAI - ARMOR ERAI/P corrected - ARMOR • After 20yrs simulation : • Fresh bias largely corrected • Still fresh in Northern Atlantic • Too salty in 20-30°lat band. MyOcean2 First Annual Meeting – 16-17 April 2013

  13. Achievements in Production Centres A. Storto, CMCC BLACK: Old set of background-error Covariances RED: New Set • R&D activities: • development of a new set of background-error covariances (correction of T drift due to vertical instabilities) • Implementation of ice dynamics SEPTEMBER ARCTIC SEA-ICE EXTENT OBS NO ICEDYN ICEDYN The use of ice dynamics improves the patterns of sea-ice extension, especially for the yearly minima, and the near-surface temperature in polar areas MyOcean2 First Annual Meeting – 16-17 April 2013

  14. First period summary and next steps • SUCCESSES of the FIRST PERIOD: • - Validation definition document almost ready for the reanalyses • - Global Ocean reanalyses production for V3.1 is underway • - The QuID will benefit from strong synergies between the partners (i.e. show the added value of the ensemble) • EVOLUTIONS FOR THE SECOND PERIOD (Global Ocean RANs): • - V3.1 release : production and validation is expected to be finished by September. Service opening at the end of 2013. • - Preparation of global ocean simulations of the biogeochemistry forced by reanalysed ocean physics. MyOcean2 First Annual Meeting – 16-17 April 2013

  15. Achievements wrtworkplan: (Major Accounts and SPCs) Needtobefinalized and Updated at eachnewproduction • WP18.2.3: • SPC draftfactsheetshavebeenproduced (on Alfresco) based on the activitiydonebyMyOcean and ETC-ICM for the following SPC: • ArcticSeaIceIndicator • MeanSeaLevel Trend Indicator • Global meanheatcontent • SPC productdescriptiontobeproduced: • Today'sseasurface temperature • Global Ocean, BlackSea, MediterraneanSeaseasonalmaps • DIFFICULTY • Consolidate the URD and the involvmentofRegionalConventions and ICES MyOcean2 First Annual Meeting – 17-18 April 2013 MyOcean2 First Annual Meeting – 16-17 April 2013

  16. ArcticSeaIceIndicator • Produced at the Norwegian and DanishMeteorologicalInstitutesfor data producedby the EUMETSAT OSI SAF (http://osisaf.met.no) and the CryoClim (http://www.cryoclim.net) project, deliveredthrough MyOcean • EEA usesitasIndicator and includedit in the SOER 2010 and Climate change report 2012 MyOcean2 First Annual Meeting – 16-17 April 2013

  17. MeanSeaLevel Trend Indicator • Producedby MyOcean SeaLevel TAC (CLS) as SPC product • EEA usesitasIndicator and includedintoClimatechange report 2008, State ofEnvironment Report 2010 and ClimateChange report 2012

  18. In Situ TAC ClimateChangeIndicator Time series of global mean heat content variability calculated from ocean temperature measurements (based on the Argo array) in the 10-1500m depth layer. The average global warming rate accounts for 0.52±0.1 Wm-2 during the years 2005-2011. The error bars show the uncertainties of the global mean heat content estimation. • Producedby MyOcean in situ TAC (IFREMER) as SPC product • EEA usesitasIndicator MyOcean2 First Annual Meeting – 17-18 April 2013 MyOcean2 First Annual Meeting – 16-17 April 2013

  19. Products on EOE Global Oceanmodel Standard productaccessedthrough WMS Seasonalmapsfor the Global Ocean, Med and BlackSea (SPC) By EEA webgis: GO and Mediterranean SST forecastproductswww.eyeonearth.org MyOcean2 First Annual Meeting – 17-18 April 2013

  20. ExamplesofUserrequirements (Copenhagen User workshop and CUG) • MSFD: • Annual and seasonalmeanofcurrents, salinity, temperature • Bottom temperature • Depth of the mixed layer, currents at the base of the mixed layer • Heat content, bottom & surface T • Nutrients and chl-aannual and seasonalmeans • Climate: • Integrated heat content (mixed layer and thermocline rather than the 20 deg isotherm) • Ensemble products from reanalysis • Provide reanalysis with the estimation of uncertanties • Synthetic Index of multi-decadal variability / thermohaline circulation • Transport at relevanttransects • Fishery: • Bottom temperature • Annualmeanof Temperature, salinity, curretns • Long timeseriesreanalysis • Transport at relevantstraits TobefurtheranalysedwithUsers MyOcean2 First Annual Meeting – 16-17 April 2013

  21. First periodsummary and nextsteps • SUCCESS: • SPC havebeenproduced and disseminatedto EEA • SPC are entering the MyOceancatalogue in V4 (TARGET products) • EEA isdisseminating the MyOceanproducts in the frameworkof EIONET nationalrepresentatives and on EOE • The internalcommunicationamong the differentcomponentsofMyOceanhasbeenimproved • NEXT STEPS: • Update the MyO and EEA SLA with WP2 • Define the new SLA for the newuserswith WP2 • Finalize the SPC productdescriptions (V1 at T18 and V2 and T30) • Consolidate the userrequirements and theirinvolvment • Start the implementationofnew SPC and continue the regular production/update of SPC • Increase the usageofregionalproducts (i.e. Ocean Color) and long timeseriesproducts (i.e. reanalyses) MyOcean2 First Annual Meeting – 16-17 April 2013

  22. Achievements wrtworkplan 18.3: (REPs) • OBJECTIVES: • Convert satellite and in situ observationsinto data productsthat: • support the MFCswith data requiredforassimilation and validation • provideusefulobservational data productstousers • improvecoordinationwithupstreamcomponents and MFC • focus on characterizationof the REP productsquality • DIFFICULTIES and CHALLENGES: • Phasing with model reanalysis (RANs) still difficult to organise in the frame of a 2,5-3 years project - need to accept that RAN will use the REP Version n-1 • Coordination with observational agencies (space, in-situ) (Difficult to phase with MyOean - need to accept to use version n-1) • Coordinationwithother (independent) initiatives • Forallcases , needto work on a proper way tokeep information on producers and tomanageusers on bothsides. On going work at the Exec/Boardlevel MyOcean2 First Annual Meeting – 16-17 April 2013

  23. WP 18.3: Product status • First year of MyOcean 2 dedicated to: • - Work on algorithms improvement detailled in each individual TAC presentation • - Complete time series generated within Myocean1 project • Consist in providing products to replace the NRT products in order to have a better accuracy (3 months for SLA and 5 days for OC) • - Generate or update time series • Consist in performing a reprocessing for the whole period with common standards 201xx 198? 20xx NRT(RT) Reprocessed (Myocean 1) DT Reprocessed (Myocean 2) MyOcean2 First Annual Meeting – 17-18 April 2013 MyOcean2 First Annual Meeting – 16-17 April 2013

  24. In-Situ • Version 3: T&S historical data set • CORA V3.4 delivered for V3. Upgrade of MyOcean CORA3.3 product to include the year 2011 plus ICES CTD (1990-2011). Scientifically validated the same way as CORA3.3 • Regional V3: New products NRT MyOcean Data + SeaDataNet + Roos providers : Duplicates removed + Basic QC. It is presently a demonstration product due to delay from SeaDataNet data provision • Version 4: • Regional products Fully validated as CORA3.4 • CORA4.0 : will include Regional product and cover 1990-2012 V3 1991 V4  MyOcean2 First Annual Meeting – 16-17 April 2013

  25. Ocean Colour Version 3: No change for V3 was planned. REP OCTAC available since V2 are Chlorophyll for MED, BS, GLO & EUR, and Optics for GLO & EUR BUT OC TAC R&D activity clearly showed that the MED and Global algorithms are not suitable for the Black Sea.  CNR after evalution of BS_CHL REP against in situ observations decided to produce a newversionof the BS_CHL_L3_REP by re-processing SeaWiFS data timeserieswith a BlackSeachlorophyllregionalalgorithm (see OCTAC presentation). This new version of the BS_CHL_L3_REP will be available since V3. ReprocessedusingBlackSeasregionalAlgorithmfromKopelevich et al. (2004) MyOcean2 First Annual Meeting – 16-17 April 2013

  26. Ocean Colour Version 4: New Version of: Med + BS, ATL products ready for V4 . The OCTAC regional processing chains will use Level 2 OC-CCI data as input and regional algorithms for chlorophyll retrieval ATL Products will cover also the Baltic Sea -> All the MyOcean Regions will be covered by new OC CHL REP GLO REP will not produced by OCTAC: covered by OC-CCI, possibility to be re- distributed by MYO has been confirmed by PML after discussing with ESA  ready for V4 at least NOTE: New OC regional and global REP will be multi-sensor re-processed OC data time series while the present version of the re-processed products are based only on SeaWiFS time series MyOcean2 First Annual Meeting – 16-17 April 2013

  27. Sea Level Version 3 No update for V3, but completed every 3 months by Delayed Time products (better products than the NRT ones but consistency with REP not ensured) Different kinds of improvement have been performed this year: (see detail in SL TAC talk) - change in the reference period 1993-1999-  1993-2012 20 years ! - new standards (orbits, …) - improve methodology (mapping) Version 4: REP will be delivered for V4: GLO, MED, BS work mainly performed in the frame of SALP/DUACS activities 20 years time series 1993-2012 (60 years cumulated) Impact of the change to bemanagedwithMFCs cm

  28. Global OceanSynthesesbased on TAC products Version 3: Cover 1993-2010 period, ARMOR3D3D T,S,U,V fields) More energy and small scales , less barotropic NEW OLD DEPTH Temperature Zonal velocity DEPTH Version 4: New productscontainingmethodologyimprovement and use new TAC products ( MDT with GOCE data, MyOcean OSTIA SST ) MyOcean2 First Annual Meeting – 16-17 April 2013

  29. REP products status at V3.0 versus MyOcean1 Black: no change vs MyO1 Red: MyO1 Update (time series completed) Green: New Product (Myo2) MyOcean2 First Annual Meeting – 16-17 April 2013

  30. REP products status at V4 versus V3.0 Black: no change vs V3.0 Red: Update of V3.0 Green: New Product MyOcean2 First Annual Meeting – 16-17 April 2013

  31. Achievements wrtworkplan WP18.4: (Regional RANs) ACHIEVEMENTS: • Work on improvementsofmodels (e.g.,tidal forcing, turbulenceparameterization) and surface forcing • Work on developing and improving DA systems (e.g., errorcovariances, correlationlenghtscales, biascorrection) • Setting up mostof the systemsto start RAN production • Observationsinventory and processing and choiceof the boundaryconditions • Developmentofnewvalidationtools • Couplingbetweenphysical and biogeochemicalmodels • DIFFICULTIES and CHALLENGES: • Choiceofinitialconditions and boundary forcing • Ambitiousruns due tolarge CPU costs • Small hardware failures, big consequences • Coordinatedeffortforvalidation • Lackofhydrographic data afteryearof 1994 for the BlackSea • Validationactivitiessufferfor the lackofavailablebiogeochemical data MyOcean2 First Annual Meeting – 16-17 April 2013

  32. Arctic Sea PHYS Reanalysis L. Bertino, F. Counillon, P. Sakov, E. Simon, A. Samuelsen NERSC V.3 March 2013: 1991-2010 HYCOM 12km; Deterministic EnKF (100 members); assimilates SLA SST T/S profiles from MyO2, ice concentration and drift (CERSAT-Ifremer) ARCTIC_REANALYSIS_PHYS_002_003 AVAILABLE in NetCDFand transferred to ARC-MFC diffusion unit!Same sys used for ARC real-time forecasting with various observing networks 1991-2010 reassuring proof of stability for operations Sea level errors in Nordic Seas Various altimeter constellations Stable slightly decreasing errors Hint of seasonal bias<5cm MyOcean2 First Annual Meeting – 16-17 April 2013

  33. ArcticSeaBIO Reanalysis L. Bertino, F. Counillon, P. Sakov, E. Simon, A. Samuelsen NERSC • V3.0 March 2013: 2008-2010 HYCOM+Norwecom 25km In-line phys-bio coupling ; EnKF with anamorphosis stable on long runs; it assimilates SLA, Ice conc from MyO2; Reynolds SST (National Climatic Data Center), Chlorophyll (GlobColour) ARCTIC_REANALYSIS_BIO_002_005 Validation data from in-situ TAC, ARC AVAILABLE in NetCDFand transferred to ARC-MFC diffusion unit • Joint physical-bio data assimilation possible in view of future real-time system Validation agaist Surface Chl and nitrate at Station M (Norwegian Sea) in 2008 MyOcean2 First Annual Meeting – 16-17 April 2013

  34. BalticReanalysis Axell Lars (SMHI) Vibeke Huess (DMI) REA Time period: 1989-present (same as Euro4M) Model: NEMO (”BaltiX” setup;) 2nm resolution 56z* coord, meaning all verticalcoordinatesmove with the seasurface ongoingevaluation Ice model: LIM3  not evaluatedyet Meteorological forcing: Met. Rean from Euro4M project, 22km res • Boundary conditions: • S/T profiles from climatology or from global RAN (later) • Sea ice: no ice • Sea levels: 2 storm surgemodelwill be testedshortly • Data assimilation: • Ensemble 3D-Var Multivariate (many variables affectedsimultaneously) (Backup:Ol) • Observations in DA: Ice, T/S, SST Multivariate analysis increments Sea surface temperature Level ice thickness Ice concentration Sea surface salinity

  35. NWSPHYS Reanalysis UKMO and NOC-L Main results – Example of validation of free-run SST validation AMM7-AVHRR (1985-2004) Data Assimilation System convertedto the 3D-Var NEMOVAR system Begin production in mid-2013 AMM7 mean error -0.09°C RMS error 1.12°C Shelf only (< 200m) mean error 0.16°C RMS error 0.74°C

  36. NWSPHYS Reanalysis Trond Kristiansen, Jon Albretsen, Bjørn Ådlandsvik, Henning Wehde (IMR) • Model: Regional Ocean Modeling System (ROMS) • DA method: Incremental Strong Constraint 4DVar Analysis • (IS4DVAR) • Assimilated data: SST based on the Pathfinder 5.0 satellite data • (4km resolution,7 days) • The goal is to produce a re-analysis for the period 1985-2010 • Model domain Model domain 8x8 km grid (252x202x35) • 35 vertical levels (sigma coordinates) • ERA-INTERIM atmospheric forcing • SODA ocean boundary forcing (to be replaced • with Mercator Global RAN) • OTIS Regional Tidal Solutions Atlantic Ocean 1/12° resolution MyOcean2 First Annual Meeting – 16-17 April 2013

  37. IBIReanalysis Guillaume Reffray, Mercator Océan Model IBI12 (monthly mean: 2002-2003 ) vs Levitus 2009 - Zonal section of Salinity at 40°N August November Mediterranean water is better positioned (thanks to the biases correction method) ASSIMILATION Model (color) vs Levitus (Contour) MyOcean2 First Annual Meeting – 16-17 April 2013

  38. MediterraneanPHYS Reanalysis M.Tonani, A.Grandi, S. Simoncelli, (INGV) Product Quality MEDSEA_REANALYSIS_PHYS_006_004 1999-2011 Weeklyaveraged SST RMS error and bias: Analysescompared I) with satellite reprocesseddata till 10/07/2008; II)with SST DelayTime data from 11/07/2008 till 31/08/2010; III) withRealTime SST data for the restof the period Weekly averaged SLA RMS of satellite-model misfit (cm) MyOcean2 First Annual Meeting – 16-17 April 2013

  39. MediterraneanBIO Reanalysis S.Salon, G. Bolzon, G. Cossarini, A.Teruzzi (OGS) Main results 3D-Var scheme upgrade & test Comparison of control run (CR) and assimilation run (AR) versus satellite obs for the Levantine sub-region Biogeochemical climatology of Mediterannean sub-regions Annunal averaged + STD profiles of chlorophyll and nitrate for the Levantine sub-region Climatology has been obtained from a series of recent datasets (period 1990-2010) NITRATE CHLOROPHYLL MyOcean2 First Annual Meeting – 16-17 April 2013

  40. Black SeaPHYS Reanalysis Gennady Korotaev, MHI • PHYS REA from 1985 till present • Model: MHI model of the Black Sea circulation with 38 z-levels and 5km res (238x132 grid); • Data will be assimilated: T/S from hydrographic surveys, Argo profiling floats, SLA and SST; • Current status: • major problem between 1994 and 2002, T and S measurements are almost absent • careful tuning of the Black Sea circulation model • analysis of available atmospheric forcing during ‘90s • a procedure to joint altimetry and profiling float data assimilation is developed and it is undertesting now Monthly-averaged total surface heat flux for February, July and December (from left to right). Upper row – ERA40, lower – MM5. MyOcean2 First Annual Meeting – 16-17 April 2013

  41. First PeriodSummary and NextSteps Black: MyO1 Red: MyO1 Update Green: New Product (MyO2)

  42. First periodsummary and nextsteps • FIRST PERIOD SUMMARY: • Team formation and improved links among MFCc and TACs • Cal/Val protocol for the RANs • Some new production • Calibration of physical models and data assimilation scheme • Coupling between physical and biogeochemical models • Make sure that each MFC and TAC will produce RANs and REPs (and QUID) and reinforce dependency on internal MyOcean products • Establish the interaction with parallel initiatives (e.g. CCI and Seadatanet) • SCPs on the catalogue from V4 • Reinforced interaction with EEA • NEXT STEPS: • New productions • Coordinated validation of global RANs • Improved validation of the regional RANs • Consolidate the interactions with Users • Synthesisreports on the State of the Oceansforbroaddissemination MyOcean2 First Annual Meeting – 16-17 April 2013

  43. First periodsummary: success S Reanalysisproductsof the MediterraneanSea (5th position) and of the Global Ocean (6thposition) show thatpastproducts or long timeseries are alsoof interest forusers. 6 5 Thankstoall WP18 partners Source: MyOcean2 Service Validation Report January-December 2012 MyOcean2 First Annual Meeting – 16-17 April 2013

More Related