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GMI Core Modeling Activities Status Report November 5, 2003 Managers, Susan Strahan and Tom Clune

GMI Core Modeling Activities Status Report November 5, 2003 Managers, Susan Strahan and Tom Clune. Personnel Status of Aerosol, Tropospheric, & Stratospheric Models GMI Web page What we need from YOU.

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GMI Core Modeling Activities Status Report November 5, 2003 Managers, Susan Strahan and Tom Clune

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  1. GMICore Modeling Activities Status ReportNovember 5, 2003Managers, Susan Strahan and Tom Clune Personnel Status of Aerosol, Tropospheric, & Stratospheric Models GMI Web page What we need from YOU

  2. I. Personnel – Science Evaluation (Code 916) and Computational Services (Code 931) at GSFC • Science Computing Branch (Tom Clune) • Jae-Hoon Kim and Bigyani Das prepare inputs and run the models. • Additional computational support personnel, such as software engineers and web site designers, are available as needed.   • Science Evaluation (Susan Strahan) • Over the summer, Steve Steenrod joined the team. He has extensive experience with the Goddard CTM. • Chris Readinger joined the team 3 weeks ago. He will be writing IDL codes for reading, post-processing, and diagnostic evaluation of model output.

  3. II. Tropospheric Model: Status and Simulations • Radionuclides (222Rn, 210Pb, 7Be, and 10Be) • The wet deposition scheme blues • Coding error corrected (in rainout), new radionuclide results differ from previous (Nov 2001) results. • Cloud liquid water (LWC) value: Harvard vs. Michigan? Choice affects surface Pb in northern high latitudes • Latest simulation (3 met fields) with Michigan LWC available • Full Chemistry • Latest simulations: 3 met fields, all diagnostics on, and Michigan LWC – some output problems! Will rerun…. • Output files for 175 stations • Synthetic Tracers (Bio Burning CO, Transcom CO2, and CH3I) • Simulations just completed • These runs provide diagnostic help for interpretation of full chemistry runs.

  4. II. Aerosol Model: Status & Simulations • To Date • aerosol model and Michigan inputs were delivered in summer • model is coded to run only 1 month at a time, some recoding is necessary to run 1 year at a time • 1 year simulation with DAO winds and Michigan inputs (and Michigan LWC) now being evaluated by Michigan • Coming up next… • Simulations with GISS and CCM3 winds are ready to roll once DAO results are ‘validated’ against Michigan results • Next simulations will use GMI model results (e.g. HO2 & O3) as inputs, instead of Michigan chemical input.

  5. II. Stratospheric Model: Status & Simulations • To Date • Model delivered in July and tested last month • We reproduced results identical to Peter Connell’s test run with the same version of the code • Slightly different results are obtained with 32 vs. 44 processors. Differences are scientifically insignificant. • Coming up next… • Test of sensitivity to horizontal resolution. We’ll use same FVGCM winds but at 2x2.5 resolution. Very relevant to the isolation of Antarctic vortex. • Updating reaction rates to JPL2002.

  6. III. GMI Web Site: http://gmi.gsfc.nasa.gov • Currently working on ‘Science Highlights’ Section • Need tropospheric model text • Need aerosol model text • Submitted manuscripts can be downloaded here • Currently working on ‘Calendar and Notes’ • we will keep this current so you can review agenda and presentations from recent meetings • Site for downloading future meeting info, timelines • My goal: to fill out the site by next meeting, including an information page for prospective GMI members on our research needs/priorities

  7. IV. What we need from you…. • Copy of your presentation (*.ppt or *.doc). Email tostrahan@code916.gsfc.nasa.gov • A prioritized list of your GMI computing needs. For example, • IDL readers for a particular model output • clearly defined new diagnostics • IDL post-processing routines • a list ‘standard’ diagnostic plots to be made (by us) for any new simulation… • Text and manuscripts for the GMI web site

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