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Justin Glisan Iowa State University Department of Geological and Atmospheric Sciences RACM Project Update: ISU Atmospheric Modeling Component: Part 1 4th.

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Presentation on theme: "Justin Glisan Iowa State University Department of Geological and Atmospheric Sciences RACM Project Update: ISU Atmospheric Modeling Component: Part 1 4th."— Presentation transcript:

1 Justin Glisan Iowa State University Department of Geological and Atmospheric Sciences RACM Project Update: ISU Atmospheric Modeling Component: Part 1 4th DOE/RACM Meeting: San Diego, CA 1Justin Glisan, Iowa State University

2 Outline Update Since Seattle SHEBA Year run – WRF/PAW Parameters – Manual VEGUSE.TBL/LANUSE.TBL changes – BPRC VEGUSE.TBL/LANDUSE.TBL Future Work/PhD Research 4th DOE/RACM Meeting: San Diego, CA 2Justin Glisan, Iowa State University

3 Update Since Seattle Ancillary analysis of 2000-2001 Case Study SHEBA Year Case Study Taught Mteor 206 at Iowa State (yuck!) – Slowed down research – Drained my brain 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University3

4 Pan-Arctic WRF (PAW) Setup Using physics parameterizations tested at the University of Colorado 4th DOE/RACM Meeting: San Diego, CA 4Justin Glisan, Iowa State University

5 PAW WRF (ARW dynamic core) version 3.0.1.1 Pan-Arctic Domain Colorado Physics Parameterizations Two modifications since Seattle – Emissivity changes to native VEGUSE.TBL and LANDUSE.TBL – BPRC Polar WRF VEGUSE.TBL and LANDUSE.TBL 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University5

6 Current PAW Physics Parameterizations 1.ra_lw_physics 2.ra_sw_physics 3.bl_pbl_physics 4.sf_sfclay_physics 5.sf_surface_physics 6. mp_physics 7. cu_physics 1.ra_lw_physics = 1 (RRTM) 2.ra_sw_physics = 2 (Goddard) 3.bl_pbl_physics = 1 (YSU) 4.sf_sfclay_physics = 1 (MM5) 5.sf_surface_physics = 1 (Noah) 6. mp_physics = 10 (Morrison) 7.cu_physics = 1 (Kain- Fritsch) 4th DOE/RACM Meeting: San Diego, CA 6Justin Glisan, Iowa State University

7 PAW Model Runs 2000 Test Case SHEBA Year Test Case 4th DOE/RACM Meeting: San Diego, CA 7Justin Glisan, Iowa State University

8 2000-2001 Test Case Full run completed after Seattle meeting Run locally at ISU on Derecho – 12 nodes – 13-month run (September 2000-September 2001) – Around 18 hours computing time per month Results compared to ERA40 and NCEP reanalyses 4th DOE/RACM Meeting: San Diego, CA 8Justin Glisan, Iowa State University

9 SHEBA Year Test Case September 1997 – September 1998 (+) – Initial run extended into February 1999 – Same set-up as 2001 case Forcing Data Set: NCEP/DOE R2 Results compared against: – NCEP/DOE R2 – ECMWF ERA40 – SHEBA Observations 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University9

10 4th DOE/RACM Meeting: San Diego, CA 10Justin Glisan, Iowa State University

11 January 1998 MSLP & Bias Temperature & Bias Modifications Time Series 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University11

12 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University12

13 VEGUSE.TBL & LANDUSE.TBL Modifications (Jan. 1998) 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University13

14 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University14

15 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University15

16 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University16

17 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University17

18 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University18

19 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University19

20 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University20

21 VEGUSE.TBL & LANDUSE.TBL Modifications (Jan. 1998) 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University21

22 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University22

23 VEGUSE.TBL & LANDUSE.TBL Modifications (Jan. 1998) 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University23

24 Future Work/PhD Research Analysis of Extreme ATMS Behavior Uncoupled and Coupled Model 4th DOE/RACM Meeting: San Diego, CA 24Justin Glisan, Iowa State University

25 Extreme Model Behavior Persistent pressure systems which lead to extreme temp. and precip. regimes Increased coastal erosion (attributed to high intensity storms) – This brings to mind certain ecosystems effects such as permafrost melt, glaciers, snow, etc. – Changes in storm tracks 4th DOE/RACM Meeting: San Diego, CA 25Justin Glisan, Iowa State University

26 Baseline Climatology Development After initial PAW run analyses, begin using UNCOUPLED PAW to develop a long-term, baseline climatology Once RACM is up and running… – Use the climatology as a means of analyzing extreme model behaviors In both coupled and uncoupled modes – Concentrating on near-future and further-future 4th DOE/RACM Meeting: San Diego, CA Justin Glisan, Iowa State University26

27 Coupled vs. Uncoupled One thing we want to understand is how observations actually compare to output from: – Uncoupled atmospheric model (PAW) – Coupled model (RACM) Interactions between the planetary and synoptic scales Sea ice evolution w.r.t to future climate regimes 4th DOE/RACM Meeting: San Diego, CA 27Justin Glisan, Iowa State University

28 glisanj@iastate.edu 4th DOE/RACM Meeting: San Diego, CA 28Justin Glisan, Iowa State University

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