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Report on the Medspiration Service and its Usage

This report provides an overview of the Medspiration service from November 2006 to November 2007, including the concept, changes, development work, products generated, data usage, outreach, and transition towards an operational service. The report also discusses the fulfillment of goals and provides examples of the GHRSST principles in action.

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Report on the Medspiration Service and its Usage

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  1. Medspiration-Globcolour User Meeting Report on the Medspiration Service and its Usage Ian Robinson Medspiration Project manager

  2. Overview of Medspiration: Nov 06-Nov 07 • The Concept for the Medspiration Service • Changes in the service • Development work • Products generated • Data usage • Outreach and promotion of Medspiration • Planned transition towards an operational service • Are we fulfilling the goals set for us? • Examples of the GHRSST principles in action Medspiration-Globcolour User Meeting

  3. The Background to Medspiration: 1 • GODAE’s high resolution challenge to the SST community • “Develop a global, high-resolution sea surface temperature analysis with proper consideration of the skin effect and sufficient temporal resolution to resolve the diurnal cycle, that is available in real-time for all environmental and climate applications” • Spatial resolution < 10 km : Resolve diurnal cycle • Accuracy target better than 0.2 K • Near-real time analysis (~24 h) Medspiration-Globcolour User Meeting

  4. The Background to Medspiration: 2 • In response to the GODAE challenge the GHRSST-PP was established • Godae high resolution SST pilot project • Based on collaboration between major SST players (space agencies, data producers, operational users) • Addressed the science of sea “surface” temperature • Diurnal thermocline; thermal cool skin; “Foundation” temperature • Agreed a standard processing model • Converts level 2 SST products into GHRSST-L2P data products • N.B. Does not alter the basic SST data from individual sources • A distributed regional and global task-sharing strategy Medspiration-Globcolour User Meeting

  5. The Medspiration Concept • ESA’s goal in creating Medspiration • To support development of a prototype European RDAC (regional data assembly centre) within the GHRSST framework • To encourage the establishment of GHRSST as the focus of international collaboration on SST products • Specific objectives of the Medspiration Service • Develop the software systems to support the Service • Operate the service by delivering specific products • L2P products for most SST products over the European region • L4 analysis (2 km resolution) over the Mediterranean Sea • Populate a match-up database (MDB) for Medspiration products • Produce Medspiration high resolution diagnostic data set (HRDDS) • Develop a user base for Medspiration products Medspiration-Globcolour User Meeting

  6. 2001-3 2004 2005 2006 2007 2008 Medspiration plan Stop producing L2P forAMSR-E and Navocean AVHRR LAC and GAC Phase A:Development Phase B:Delivery Beta test Acceptance Review & UCM-1 Revised phase B Add global AATSRExtend L4 region New MDB interfaceMedia outreachGoogle Earth L4 User consultation meeting, UCM-2 New SSESfor AATSR Extend to overlap GMESTune L4 configuration UCM-3 UCM-4 (with Globcolour) UCM-5 (with Globcolour) Medspiration has evolved GHRSST established ESA Medspiration ITT ESA supports GHRSST Int. project office Medspiration-Globcolour User Meeting

  7. Medspiration’s front-page products But there are a lot more data, and more effort, behind these headline SST maps . . . . . Medspiration-Globcolour User Meeting

  8. What has Medspiration produced? • Maintained continuous production of L2P products since March 2005. • 1 Jun 2005 to 1 Nov 2007 produced 53882L2P files • 11147 were AATSR, • 3484 were NAR and • 6975 were SEVIRI • Generated UHR (2 km) L4 analyses of Mediterranean since June 2005, and of N.E. Atlantic shelf since 2006 • All L2P and L4 products were archived @ Ifremer and sent to the GDAC @ JPL and thence the LTSRF@NODC • From 1 Mar 05 to 1 Nov 07, 4,092,246 MDB records have been produced • The HRDDS has created data granules from every Medspiration product Medspiration-Globcolour User Meeting

  9. No. data granules from current Medspiration products = 337,374 Total from all sources = 1,032,848 Medspiration-Globcolour User Meeting

  10. How much data have our users downloaded directly from Ifremer ? • Since Medspiration started producing in March 2005, to Oct 2007 usersa have received or downloaded 257,505L2P files • 60200 were AATSR, • 12338 were NAR and • 45044 were SEVIRI • In the same period usersa have received 51,511 L4 files • This implies an average of about 50 receiving users for every L4 file produced. • The ultimate number of end users is not known • These figures do not include Medspiration files downloaded from GDAC or LTSRF • This information is being retrieved by JPL a.) Note that these figures exclude files distributed to GDAC or to NOCS for the HRDDS. Medspiration-Globcolour User Meeting

  11. Usage of the HRDDS web site • In recent months, the usage of the HRDDS website at NOCS averages: • 81 hits per hour (unique sessions) • 75 M bytes per day of information transferred over http (not including any ftp downloads) • Amongst the top 20 user domains we have identified : • ECMWF • NOAA • EUMETSAT • University of Edinburgh • IFM-Geomar • CSIRO, Australia • Samsung (S. Korea) • Met Office As well as NOCS and Ifremer Medspiration-Globcolour User Meeting

  12. Outreach and promotion of Medspiration • Google Earth displays of L4 products (Boost) • Information interface to media outlets, e.g temperature at bathing beaches (via Boost) • Presentations to ESA meetiings (e.g. Envisat symposium) • Presentations ot major R-S meetings (e.g. IGARSS in Barcelona) • Paper submitted to IEEE Systems Journal, GEOSS Special Issue • ISR will give presentations at MISU and SMHI in Sweden, following this meeting • Medspiration & HRDDS given publicity in recent presentation by Hugh Kelliher to a BNSC meeting Medspiration-Globcolour User Meeting

  13. Note the different biases compared to AVHRR 17 LAC Example: AVHRR 18 GAC bias relative to AATSR Mean bias of all match ups in HRDDS between AVHRR 18 GAC and AATSR.

  14. Have we achieved what ESA wanted ? • We have met the requirements of the ITT in developing a working European RDAC for GHRSST • We have tested and proved the basic GHRSST concepts • We have prototyped an effective distributed processor • We have encouraged the establishment of GHRSST • Other RDACs have been developed in parallel with Medspiration • GHRSST is now the international forum in which the quality and planning of SST measurements from satellites is discussed • E.g. GHRSST voiced to ESA/EU the international request that the SST sensor on Sentinel-3 should be an AATSR-class instrument Medspiration-Globcolour User Meeting

  15. Is the Medspiration / GHRSST approach making a difference? • Reliable operational delivery of Medspiration products has triggered the growth of a high-level user community • Met office OSTIA analysis (and soon FOAM) depend on L2P data • DMI/Met.No have recently launched a new analysis • Ifremer now have both Global and NE Atlantic analyses • Australians use AATSR L2P for SST retrievals from AVHRR LAC • Improvements are starting to emerge in • ocean forecasting skill, • reliability of climate records, • benefits to the wider public • Etc. . . (see talks on Wednesday morning !) Medspiration-Globcolour User Meeting

  16. Is the Medspiration / GHRSST approach making a difference? • Two examples of activities that would have been very much more difficult (practically impossible) without the availability of the GHRSST products produced by Medspiration • Checking the validity of SST in the Arctic ocean • Revising error statistics for AATSR Medspiration-Globcolour User Meeting

  17. DDS site in Chutki Sea Use of the Chutki Sea HRDDS site Melting of Arctic sea ice in 2007 Medspiration-Globcolour User Meeting

  18. SST in Chutcki sea during 2007 Medspiration-Globcolour User Meeting

  19. SST in Chutki Sea during 2006 Medspiration-Globcolour User Meeting

  20. Revised error statistics for AATSR • Gary Corlett’s talk will report the improvements made to assigning error statistics to AATSR L2P products • A crucial task so the accuracy of AATSR is effective for driving models and bias-correcting other SST products • This work was facilitated by the availability of the MDB. • Without it there would have been a long & laborious search through buoy data to create a match-up record • The MDB & HRDDS are proving to be versatile tools Medspiration-Globcolour User Meeting

  21. Conclusion • Medspiration has largely done the job it was given • While it may be difficult to quantify the full extent of its usage, evidence of its impact can be found in: • Operational dependence: Its data products are now being used by a number of key agencies as part of their operational forecasting systems • The wide international consensus that GHRSST and its approach represent the way forward for effective SST monitoring • Space agencies are planning their SST missions to fit in to the GHRSST synergetic model • The talks on Wednesday represent a cross-section of the range of uses for Medspiration data products • But – Medspiration will only be judged a success when the MCS SST-TAC is properly funded and established to carry the work forward operationally. Medspiration-Globcolour User Meeting

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