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Module 17 MM5: Climate Simulation William J. Gutowski, Jr. Iowa State University
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Module 17 MM5: Climate Simulation Examples of MM5 climate simulation: North America Arctic
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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) Project to Intercompare Regional Climate Simulations (PIRCS)
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PIRCS Participating Models Danish Met. Inst. (HIRHAM4; J.H. Christensen, O.B. Christensen)Danish Met. Inst. (HIRHAM4; J.H. Christensen, O.B. Christensen) Université du Québec à Montréal (D. Caya, S. Biner)Université du Québec à Montréal (D. Caya, S. Biner) Scripps Institution of Oceanography (RSM; J. Roads, S. Chen)Scripps Institution of Oceanography (RSM; J. Roads, S. Chen) NCEP (RSM; S.-Y. Hong)NCEP (RSM; S.-Y. Hong) NASA - Marshall (MM5/BATS; W. Lapenta)NASA - Marshall (MM5/BATS; W. Lapenta) CSIRO (DARLAM; J. McGregor, J. Katzfey)CSIRO (DARLAM; J. McGregor, J. Katzfey) Colorado State University (ClimRAMS; G. Liston)Colorado State University (ClimRAMS; G. Liston) Iowa State University (RegCM2; Z. Pan)Iowa State University (RegCM2; Z. Pan) Iowa State University (MM5/LSM; D. Flory)Iowa State University (MM5/LSM; D. Flory) Univ. of Maryland / NASA-GSFC (GEOS; M. Fox-Rabinovitz)Univ. of Maryland / NASA-GSFC (GEOS; M. Fox-Rabinovitz) SMHI / Rossby Centre (RCA; M. Rummukainen, C. Jones)SMHI / Rossby Centre (RCA; M. Rummukainen, C. Jones) NOAA (RUC2; G. Grell)NOAA (RUC2; G. Grell) ETH (D. Luethi)ETH (D. Luethi) Universidad Complutense Madrid (PROMES; M.Gaertner)Universidad Complutense Madrid (PROMES; M.Gaertner) Université Catholique du Louvain (P. Marbaix)Université Catholique du Louvain (P. Marbaix) Argnonne National Lab (MM5 V3; J. Taylor, J. Larson)Argnonne National Lab (MM5 V3; J. Taylor, J. Larson)
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PIRCS Mission Evaluate regional climate simulation by mesoscale models, using a common framework
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Summer 1988 - Drought Adapted from CAC, NWS, NOAA Jet Stream Cool & Damp Weak & Dry Southerly Flow Heat Wave
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Summer 1993 - Flood Adapted from CAC, NWS, NOAA Jet Stream Cool Warm & Moist Southerly Flow FLood
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Experiment 1 15 May - 13 July 1988 (Drought) 1 June - 30 July 1993 (Flood) Periods
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Experiment 1 IC: NCEP/NCAR reanalysis, including soil moisture BC: NCEP/NCAR reanalysis Additional surface temperatures: + Great Lakes observations + Gulf of California satellite retrievals Initial/Boundary Conditions
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Model Domains MM5
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500 hPa heights: Root Mean Square Difference from Reanalysis 1988
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500 hPa heights: Root Mean Square Difference from Reanalysis 1993
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ReanalysisLLJ 00 UTC 06 UTC 12 UTC 18 UTC 12 24 36 48 60 72 84%
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MM5LLJ 00 UTC 06 UTC 12 UTC 18 UTC 12 24 36 48 60 72 84%
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Precipitation Regions Upper Miss. SW SE NW
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Comparison of PIRCS models with gridded precipitation analysis
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Precipitation - Southwest Monsoon Region
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Precipitation - Pacific Northwest
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Precipitation - Southeast
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Comparison of PIRCS models with gridded precipitation analysis
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Precip. Bias June 1988 [mm/d] Composite -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10 MM5/BATS
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Precip. Bias July 1993 [mm/d] -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10 Composite MM5/BATS
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?
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~ 200 mm MM5/LSM
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From Storm Data Reports (9 June 1993) Dawson,Howard,Martin & Midland Counties (West Texas): Flash Floods Hail ~ 6” (150 mm) precip. ~ 200 mm MM5/LSM
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FIFE Field Campaign Kansas
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Acknowledgments - PIRCS Acknowledgments - PIRCS Primary Funding:Primary Funding: Electric Power Research Institute (EPRI) Guidance/Support:Guidance/Support: Andrew Staniforth, Eugenia Kalnay, Filippo Giorgi, Roger Pielke, AMIP group Special Thanks:Special Thanks: Participating Modelers
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Module 17 MM5: Climate Simulation BREAK
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