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WCRP CORDEX: Arctic, Antarctic, North America

WCRP CORDEX: Arctic, Antarctic, North America. Arctic Cordex POC: John Cassano and Annette Rinke. Circum -Arctic domain horiz . resol . of 0.44° (ca. 50 km x 50 km). Group Who (plan to) participate in simulations and/or analysis. Activities Simulations started and are ongoing:

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WCRP CORDEX: Arctic, Antarctic, North America

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  1. WCRP CORDEX:Arctic, Antarctic, North America

  2. Arctic Cordex POC: John Cassano and Annette Rinke Circum-Arctic domain horiz. resol. of 0.44° (ca. 50 km x 50 km) Group Who (plan to) participate in simulations and/or analysis

  3. Activities • Simulations started and are ongoing: • Model evaluation • - hindcast (ERA-Interim & GCM-driven historical simulations) – 4 models finished ERA-I • Regional projections • - scenario (GCM-driven rcp8.5 simulations 2006-2100) – ca. 7 models are expected in 2014 • Evaluation of the ERA-driven runs: • extremes, trends, systematic model errors; data uncertainty; benchmark metrics • 1stworkshop on Nov. 8 during Brussels meeting to exchange, foster and coordinate further simulations and analysis • Polar Cordex website and mailing list (hosted by CliC)

  4. Future directions • Better RCM-GCM matrix for multi-simulation studies (e.g. on extremes, precip., snow, GIS SMB,…) • Process understanding (ABL, cyclones, clouds, marginal ice zone, polynyas) • Higher resolution (0.2°) atmospheric simulations – some already done • Coupled atmosphere-ice-ocean RCMs – some models are (more or less) ready • 2nd meeting during upcoming Lund RCM conference (June 2014); • RCMES (Regional Climate Model Evaluation System) training session (by JPL) • Communication of Arctic regional climate information • (Arctic CORDEX workshop, tied to AMAP's Climate Expert Group and their activities; • pilot study for selected sector over selected sub-region; Future Earth’s call for proposals • for Fast Track Initiative proposal)

  5. Antarctic Cordex • POC: John Cassano and Annette Rinke • 2groups have run Antarctic CORDEX simulations (ca. 50 km resol.) • KNMI (Netherlands; van Meijgaard; RACMO) and NMT (USA; Reusch; WRF) • 4 other groups (France, Gallee, MAR; USA, Bromwich, PolarWRF; Denmark, Mottram, HIRHAM5; Belgium, Van Lipzig, CCLM) may plan to participate • others (e.g., Gorodetskaya) are interested in terms of process-based model evaluation

  6. WCRP CORDEX: Updates~ North America ~ POC: Linda Mearns – NCAR Anne Frigon – OURANOS William Gutowski – Iowa State Univ.

  7. CORDEX North America Organizing Executive Committee W. J. Gutowski, Jr. – Iowa State Univ. (Co-Chair) Linda Mearns – NCAR (Co-Chair) Lawrence Buja – NCAR Dennis Lettenmaier – Univ. WA Ruby Leung – PNNL Gregg Garfin – Univ. AZ PROPOSING A PROGRAM TO U.S. FEDERAL SOURCES: 1. Two-page description, given to many agencies 2. Prospectus for planning workshop, to DOE 3. Draft extended outline of possible program 4. Many meetings with various federal, US GCRP and US CLIVAR officials 5. Many teleconferences

  8. Currently thinking “small science” and coordination 1. Web page almost ready for release: https://www2.image.ucar.edu/na_cordex (a) Simulations done by others and POC,s, e.g.:  2 Canadian groups, Ph. Lucas-Picher using Alladin, UKMO, SMHI, Ray Arritt, Chris Castro. (b) Domains (c) 2-pager (d) Workshop prospectus (e) Linda’s AGU presentation 2. Potential NASA interest 3. Side note: How to overcome resistance in key areas? (e.g., AnnaritaMariotti, Renu Joseph)

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