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Planned Reanalysis Workshops

Planned Reanalysis Workshops. Mike Bosilovich. US Climate Reanalyses and Integrated Earth System Analysis. Sponsored by USCLIVAR 2000 US Reanalysis workshop - Univ Maryland. 2004 1st CLIVAR Workshop on Ocean Reanalysis - Boulder

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Planned Reanalysis Workshops

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  1. Planned Reanalysis Workshops Mike Bosilovich

  2. US Climate Reanalyses and Integrated Earth System Analysis • Sponsored by USCLIVAR • 2000 US Reanalysis workshop - Univ Maryland. • 2004 1st CLIVAR Workshop on Ocean Reanalysis - Boulder • 2006, 2007, 2008: CLIVAR/GODAE ocean syntheses evaluation (ECMWF, MIT, JAMSTEC) • Provide some guidance to program management • Focus on new reanalysis systems (CFSR, 20C and MERRA), observations and the Earth system (Nov 1-3, 2010, Baltimore MD)

  3. USCLIVAR Reanalysis Workshop Objectives • Connect users and developers in discussions of strengths and weaknesses • An opportunity for weather and climate users to demonstrate applications and accuracy requirements • Develop quantitative metrics (diagnostics) for Integrated Earth System development • Discuss the definitions and goals for Integrated Earth System Analysis

  4. Technical Workshop on Reanalyses • April 5-7, 2010 NASA/GSFC • Invitation only hosted by the Global Modeling and Assimilation Office (GMAO) with representatives from ECMWF, JMA, NCEP, ESRL and NCAR • Objectives • To review the current status of reanalyses and the lessons learned • Identify the primary technical issues (from assimilation system and observation perspectives) that need to be addressed or that will be addressed in the next reanalyses

  5. Main Agenda • Status and lessons learned from MERRA, ERA-Interim, JRA-25/55, CFSR, 20CR • Technical issues – Observations • Cross-calibration of satellites • Homogenization of radiosondes • Data sources – keeping up to date with the latest versions of data • Quality Control • Technical issues – Analysis • Technical issues – Model

  6. Planning for the next round of Reanalyses • What will be new? Coupled analyses? • Mechanisms for sharing information • Coordinated experimentation, comparison of innovation diagnostics, etc • Shared data, QC • What is the role of PCMDI in reanalyses comparisons, standard diagnostics? E.g. CMIP validation data and diagnostics • Understanding model response to analyses • Sensitivity of reanalyses to the changing observing system • Uncertainty of analyses

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