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MyOcean2 First Annual Meeting – 17-18 April 2013

WP 13 THEMATIC & ASSEMBLY CENTRE for OCEAN COLOUR MyOcean2 First Annual Meeting – Cork /16-17 April 2013. MyOcean2 First Annual Meeting – 17-18 April 2013. OCTAC Main Objectives.

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MyOcean2 First Annual Meeting – 17-18 April 2013

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  1. WP 13THEMATIC & ASSEMBLYCENTRE for OCEAN COLOUR MyOcean2 First Annual Meeting – Cork /16-17 April 2013 MyOcean2 First Annual Meeting – 17-18 April 2013

  2. OCTAC Main Objectives • To meet the strong demand for more accurate OC products at regional scale, especially in the coastal area (Case II turbid waters), via best offshore (Case I) and coastal (Case II) algorithm combination; • OCTAC streamlining via system architecture and service provision simplification; • to consolidate and reinforce the MyOcean OCTAC system and service in terms of operation, service capacity, product quality, routine validation; • to ensure production, archiving and dissemination d of global, Pan-European, regional (ROOS) products as defined in the MyOcean Catalogue MyOcean2 First Annual Meeting – 17-18 April 2013

  3. Partnership WP 12 Ocean Colour TAC (coordination) CNR Implementation & Transition R&D Operation Service P12 CNR P28 ACRI P42 PML P12 CNR P28 ACRI P42 PML P28 ACRI P12 CNR P42 PML P28 ACRI P12 CNR P47 HZG P09 IFREMER P42 PML • CNR: Overall Service & Operation and S&T Coordination, Centralised Delivery • ACRI: Global Production Unit; developing & operating GLO, BAL and L4 ATL production chains • CNR: Mediterranean Production Unit ; developing & operating the MED and BS production chains • PML: Atlantic Production Unit: developing & operating the Atlantic and Artic L3 production chains • Ifremer: contribute to the development of the new Atlantic OC product suite • HZG: development of the new BAL product suite MyOcean2 First Annual Meeting – 17-18 April 2013

  4. System Evolution • Objectives were/are • OCTAC streamlining via system architecture and service provision simplification, compatibly with the fact that the OC signal is influenced by complex and heterogeneous water properties, thus making streamlining challenging. • Conversion from 5 PUs (ACRI, CNR, IFREMER, PML, JRC) to 3PUs (ACRI, CNR, PML) by merging the IBI and NWS into a unique Atlantic production system • OCTAC conversion to one Dissemination Unit distributing all the regional and global products; • Implementing change to OCTAC System architecture minimising the impact on the production and to the users • Implementing the relevant developments made in OC S&T and in MyOcean Tier-1 S&T WP into the operational OCTAC processing chains • Update the processing chains taking into account new OC sensors (VIIRS, S3,...) MyOcean2 First Annual Meeting – 17-18 April 2013

  5. OCTAC: System Overview (ready for V3) OC-ACRI-PU: operating GLO, BAL and L4 Atlantic production chains OC-CNR-PU: operating the MED and BS production chains OC-PML-PU: operating the Atlantic and ARC L3 production chains

  6. System Evolution • Main achievements are • Update of OC MODIS-Aqua regional Processing chains to allow the new calibration for MODIS Aqua to be operationally implemented. • OC system architecture simplification: • decrease N° of OC PUs from 5 to 3. • decrease N° of OC DU from 3 to 1 • All the global and regional products distributed by a single OCTAC DU since MyOcean V2.2 without impact to the dissemination and to the users • Development of the New Atlantic and Arctic L3 OC processing chains • Development of the New Atlantic and Global L4 OC processing chains • Update the MED and BS L4 processing chains • Update of the OCTAC DU : • 1) re-organization of OC product catalogue and dataset; • 2) new configuration of the interfaces • Main difficulties encountered • Re-organization of OCTAC DU was no simple and implied several updates • The split of ATL production between PML (L3) & ACRI (L4) MyOcean2 First Annual Meeting – 17-18 April 2013

  7. Production Evolution: objectives • R&D Objectives were • To develop a single Atlantic Ocean product suite (including NWS, IBI regions) • To develop Baltic Sea and Black Sea regional products • To develop/improve OC coastal parameter estimates merging of Case I (open ocean) and Case II (coastal) algorithms into a single product; • To develop/improve multi (or single)-sensor OC L4 products with no data gaps via updated/new OI or EOF methods and uncertainty estimates (Cal/Val); • To develop a new European Seas product based on regional products; • Update the production taking into account new OC sensors (VIIRS, S3,...) • Loss of EnviSAT Terra, VIIRS (and Sentinel-3, when will be available) (HIGH priority) • Production operational change were • Merge the IBI+NWS products into the ATL suite to eliminate discontinuity problems occurring at regional boundaries • Produce OC L4 products with no data gaps via updated/new OI or EOF methods (all regions: GLO, ATL, MED, BS, BAL) • Re-organize the OC catalogue in order to facilitate the selection of the products to the users MyOcean2 First Annual Meeting – 17-18 April 2013

  8. OC Products evolution in V3 Product Versions: NRT: GLO, ATL, ARC, MED, BS REP: GLO, MED, BS, EUR • Products Types: • CHL: L3 (daily composite products) and L4 analysis (no data gaps) • OPTICS: IOPs , Kd490), Secchi depth, Rrs, PAR, CDOM, SPM. MyOcean2 First Annual Meeting – 17-18 April 2013

  9. New V3 OC Product catalogue • OC products change • N° OC V2: 168 • N° OC V3: 24 • NRT &DT merged: update of NRT with DT after 5 days • Some V2 OC products transformed in datasets: • RRS, Kd, … ->OPTICS • NRT suppressed products: • NWS, IBI; EUR • New ATL Products (covering IBI & NWS) • EUR products limited to REP • New L4 OC chl products based on OI & EOF analysis • Complete re-organization of OC catalogue & the DU configuration MyOcean2 First Annual Meeting – 17-18 April 2013

  10. Production Evolution • Main achievements are • a single L3 Atlantic Ocean product suite (including NWS, IBI regions); • New L3 ARC Ocean product suite • Test of Black Sea regional algorithms and update the V2 REP Black Sea Chlorophyll product with a new V3 REP based on regional Chl algorithm • New Global and Atlantic L4 products (via OI method) • Improved MED & BS L4 fields (via new version of EOF method) • Scientific Evaluation of MODIS TERRA and VIIRS products • Re-organization of the OC product catalogue. Since V3 only 2 type of products available in each region: • CHL: L3 (daily composite products) and L4 (no data gaps) • OPTICS: IOPs , Kd490), Secchi depth, Rrs, PAR, CDOM, SPM. • Assess the scientific quality of all OC products • Main difficulties encountered • Re-organization of OC products was no simple and implied several updates. • VIIRS evaluation: no access to L2 NOAA products, no clear identification of difference between NOAA and NASA Processing MyOcean2 First Annual Meeting – 17-18 April 2013

  11. New L3 ATL & ARC products available from V3 (PML) Chloropyll- ATL & ARC OCTAC – April 2013 Plymouth Marine Laboratory MyOcean2 First Annual Meeting – 17-18 April 2013

  12. Development of the New L4 GLO & ATL products (ACRI & Ifremer) clear oceanic waters chl dominated waters Coastal water Spatial coverage : 14% to 90% Lager N# Matchup data Different algorithm for each optical region No bias introduced by the analysis MyOcean2 First Annual Meeting – 17-18 April 2013

  13. New L4 GLO & ATL products (available from V3) MyOcean2 First Annual Meeting – 17-18 April 2013

  14. INPUT DATA INPUT DATA Update of MED & BS L4 products (available from V3) 0.01 0.1 1 10 100 0.01 0.1 1 10 100 DINEOF V3 • Based on DINEOF technique (Beckers and Rixen (2003). • Input data is the daily time series of previous observations (3 months). • New version • improved check of the input data & N° of EOFs used to reconstruct the field • reconstructed field less noisy • validation against in situ: improved 0.01 0.1 1 10 100 DINEOF V2 0.01 0.1 1 10 100

  15. INPUT DATA Update of MED & BS L4 products (available from V3) 0.01 0.1 1 10 100 DINEOF V3 • Based on DINEOF technique (Beckers and Rixen (2003). • Input data is the daily time series of previous observations (3 months). • New version • improved check of the input data & N° of EOFs used to reconstruct the field • reconstructed field less noisy • validation against in situ: improved 0.01 0.1 1 10 100 MyOcean2 First Annual Meeting – 17-18 April 2013

  16. Black Sea regional products: CNR (available from V3) • BS CHL Product: • Test of Black Sea regional algorithms using the SeaWiFS data time series • Kopelevich et al. (2004) demonstrated to perform better than both the operational NASA algorithm and the Mediterranean adapted algorithm which is used in the V2 project version. • This BS_CHL algorithm has been implemented in SeaWiFS processing chain. Limited in situ data avallarle OCEANCOLOUR_BS_CHL_L3_REP_OBSERVATIONS_009_055 MyOcean2 First Annual Meeting – 17-18 April 2013

  17. Evaluation of MODIS –TERRA: Mediterranean Sea example TERRA data were processed using the OCTAC processing chains. Check of the resulting product quality applying OCTAC methodology and reference dataset CNR in situ dataset: 21 cruises TOTAL Number of Chl Profiles: 2326 Period covered: 1997-2010 In situ Bio-optical data are acquired annual cruises for CAL/VAL. MODIS Terra data quality are absolutely comparable to those of MODIS Aqua. The introductionof TERRA willbemanagedwith a changeasap

  18. First period summary and next steps Main Results • NRT Baltic regional products using regional algorithm • NRT Black regional products using regional algorithm • New merged case1/case2 ATL product • New merged case1/case2 MED product • Evaluation of new sensors and their use in operational products • Evaluation of OC CCI products over MyOcean regions • Update GLO, MED, ATL, BS operational processing Chains • Development of a new Baltic processing chain • Update the processing chains taking into account new OC sensors • Development of the OC ATL, MED & BS reprocessing processing chains using as input OC–CCI dataset • Re-organization of the OC Product catalogue • From 168 to 24 • Development of L3 ATL & ARC processing chains • Development of L4 GLO & ATL products • Improved L4 MED & BS Products • Simplification of OC TAC System: • PU from 5-> 3 • DU from 3-> 1 Next System Next R&D Products MyOcean2 First Annual Meeting – 17-18 April 2013

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