4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Workshop on Ensuring Access and Trustworthiness of Climate Observations and Models for Society March 9-10, 2010 National Climatic Data Center Asheville, NC

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, CMIP a success for access to model output Something needed for observational data sets Motivation

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Convene scientists with experience in –Modeling –Observations –Access Invite those involved with societal impacts Include about 30 participants Coordinate with GEO, WOAP, etc. Scope

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Process for facilitating access to observational data sets Technical enhancements to standards for discovery, exchange, and use Identification of needs for societal impact studies Expected Outcomes

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Linkages

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Improved access and documentation of observational data sets for the CMIP5 and the next IPCC Topic 1

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Recognition of the need for more formal documentation of observational data sets Improvements as an iterative process between data set producers and users Identify pathfinder data sets that map to CMIP5 Topic 1: Discussion

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Waliser example (JPL) “Provide the community of researchers that will access and evaluate the CMIP5 model results access to analogous sets of observational data.” –Periods, variables, temporal/spatial frequency –Coordinated with WOAP –Directly engage the observational science teams Topic 1: Approach

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Main tasks –Work with modeling/observational communities to identify data sets –Work with observational teams to produce 2-3 page technical documents (e.g., dos/don’ts, uncertainties) –Organize data sets and provide access in a fashion that parallels the model archive –Advertise the availability of the observations for use in CMIP5 analysis Topic 1: Approach

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Action 1 (Bates, Easterling, …) –Identify potential data sets –Convert to standard grids (if possible) –Convert to standard CF compliant NetCDF for ESG –Provide documentation Action 2 (Vose and Taylor) –Report results to WOAP –Seek feedback Topic 1: Actions

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Adoption of common metrics for model and observational data sets Topic 2

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Proposed CMIP5 Model Runs Core, tier 1, tier 2Details on core, tier 1

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Rigorous metrics for the evaluation of observational data exist (e.g., maturity index) Provide mechanism for the development of common metrics for models and observations Topic 2: Approach

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Action 3 (Taylor) –Establish connection with CMIP5 Model Metrics Group to establish a feedback loop with the observation leads from Action 1 –Report in summer 2010 Topic 2: Actions

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Societal impacts studies to establish linkages with the climate observation and modeling communities Topic 3

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Summary of recent meetings on regional assessments, next U.S. assessment Discussion about use of CMIP5 in societal impact studies Agreement that CMIP5 resolution too coarse, standardized downscaling approaches needed Topic 3: Discussion

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, “Waple” guidelines –Identification of relevant data –Transparency and credibility of data –Accessibility for multiple users –Tutorials and education for appropriate use –Layer of physical, socioeconomic, biological data, etc. –Visualization for assessments Topic 3: Approach

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Action 4 (Waple, Bates, Easterling) –Identify select set of impacts use cases (Summer 2010) –Follow each end-to-end –Establish feedback between use cases and data providers –Publish results to serve as templates for the future Topic 3: Actions

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Emerging technology to support a National Climate Services Infrastructure Topic 4

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Recognition of reliance upon IT infrastructure from Unidata (NetCDF, CF) and DOE ESG No need to transition to an operational agency Some useful recommendations in order GCOS guidelines helpful in observations metadata Topic 4: Discussion

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, Satellite –Build on NCDC’s contribution to the CF effort (hopefully becomes part of CF 1.5) Models/reanalyses/gridded observations –Should be brought into ESG framework In situ –Recognition that mature, adequate standards/protocols do not yet exist Topic 4: Approach

4 th WCRP Observations and Assimilation Panel Meeting Hamburg, Germany, March 29-31, No actions at this time Topic 4: Actions