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Module 17 MM5: Climate Simulation

Module 17 MM5: Climate Simulation. William J. Gutowski, Jr. Iowa State University. Module 17 MM5: Climate Simulation. Examples of MM5 climate simulation: North America Arctic. Project to Intercompare Regional Climate Simulations (PIRCS).

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Module 17 MM5: Climate Simulation

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  1. Module 17 MM5: Climate Simulation William J. Gutowski, Jr. Iowa State University

  2. Module 17 MM5: Climate Simulation • Examples of MM5 climate simulation: • North America • Arctic

  3. Project to Intercompare Regional Climate Simulations(PIRCS) W. J. Gutowski, R. W. Arritt, G. S. Takle, Z. Pan International Institute of Theoretical and Applied Physics Iowa State University (http://www.pircs.iastate.edu)

  4. PIRCS Participating Models • Danish Met. Inst. (HIRHAM4; J.H. Christensen, O.B. Christensen) • Université du Québec à Montréal (D. Caya, S. Biner) • Scripps Institution of Oceanography (RSM; J. Roads, S. Chen) • NCEP (RSM; S.-Y. Hong) • NASA - Marshall (MM5/BATS; W. Lapenta) • CSIRO (DARLAM; J. McGregor, J. Katzfey) • Colorado State University (ClimRAMS; G. Liston) • Iowa State University (RegCM2; Z. Pan) • Iowa State University (MM5/LSM; D. Flory) • Univ. of Maryland / NASA-GSFC (GEOS; M. Fox-Rabinovitz) • SMHI / Rossby Centre (RCA; M. Rummukainen, C. Jones) • NOAA (RUC2; G. Grell) • ETH (D. Luethi) • Universidad Complutense Madrid (PROMES; M.Gaertner) • Université Catholique du Louvain (P. Marbaix) • Argnonne National Lab (MM5 V3; J. Taylor, J. Larson)

  5. PIRCS Mission Evaluate regional climate simulation by mesoscale models, using a common framework

  6. Summer 1988 - Drought Jet Stream Cool & Damp Heat Wave Weak & Dry Southerly Flow Adapted from CAC, NWS, NOAA

  7. Summer 1993 - Flood Cool Jet Stream FLood Heat Wave Warm & Moist Southerly Flow Adapted from CAC, NWS, NOAA

  8. Experiment 1 Periods • 15 May - 13 July 1988 (Drought) • 1 June - 30 July 1993 (Flood)

  9. Experiment 1 Initial/Boundary Conditions • IC: NCEP/NCAR reanalysis, including soil moisture • BC: NCEP/NCAR reanalysis • Additional surface temperatures: • Great Lakes observations • Gulf of California satellite retrievals

  10. Model Domains

  11. 500 hPa heights: Root Mean Square Difference from Reanalysis1988

  12. 500 hPa heights: Root Mean Square Difference from Reanalysis1993

  13. Reanalysis LLJ 00 UTC 06 UTC 12 UTC 18 UTC

  14. MM5 LLJ 00 UTC 06 UTC 12 UTC 18 UTC

  15. Precipitation Regions NW Upper Miss. SE SW

  16. Comparison of PIRCS models with gridded precipitation analysis

  17. Precipitation - Southwest Monsoon Region

  18. Precipitation - Pacific Northwest

  19. Precipitation - Southeast

  20. Comparison of PIRCS models with gridded precipitation analysis

  21. Precip. Bias June 1988 MM5/BATS Composite [mm/d] -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10

  22. Precip. Bias July 1993 MM5/BATS Composite [mm/d] -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10

  23. ?

  24. From Storm Data Reports (9 June 1993) ~ 200 mm • Dawson,Howard,Martin & • Midland Counties • (West Texas): • Flash Floods • Hail • ≤ 6” (150 mm) precip.

  25. FIFE Field Campaign Kansas

  26. Acknowledgments - PIRCS • Primary Funding: Electric Power Research Institute (EPRI) • Guidance/Support: Andrew Staniforth, Eugenia Kalnay, Filippo Giorgi, Roger Pielke, AMIP group • Special Thanks: Participating Modelers

  27. Module 17 MM5: Climate Simulation BREAK

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