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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 MM5

  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 12 24 36 48 60 72 84%

  14. MM5 LLJ 00 UTC 06 UTC 12 UTC 18 UTC 12 24 36 48 60 72 84%

  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. ~ 200 mm MM5/LSM

  25. From Storm Data Reports (9 June 1993) ~ 200 mm MM5/LSM • Dawson,Howard,Martin & • Midland Counties • (West Texas): • Flash Floods • Hail • ~ 6” (150 mm) precip.

  26. FIFE Field Campaign Kansas

  27. 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

  28. Module 17 MM5: Climate Simulation BREAK

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