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

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Presentation on theme: "Module 17 MM5: Climate Simulation William J. Gutowski, Jr. Iowa State University."— Presentation transcript:

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 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)

4 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)

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

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

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

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

9 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

10 Model Domains MM5

11 500 hPa heights: Root Mean Square Difference from Reanalysis 1988

12 500 hPa heights: Root Mean Square Difference from Reanalysis 1993

13 ReanalysisLLJ 00 UTC 06 UTC 12 UTC 18 UTC 12 24 36 48 60 72 84%

14 MM5LLJ 00 UTC 06 UTC 12 UTC 18 UTC 12 24 36 48 60 72 84%

15 Precipitation Regions Upper Miss. SW SE NW

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 [mm/d] Composite -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10 MM5/BATS

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

23 ?

24 ~ 200 mm MM5/LSM

25 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

26 FIFE Field Campaign Kansas

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34 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

35 Module 17 MM5: Climate Simulation BREAK


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