TRACE GAS SIMULATIONS IN LOS ALAMOS COSIM

1. Los Alamos National Laboratory TRACE GAS SIMULATIONS IN LOS ALAMOS COSIM The Climate Ocean and Sea Ice Model (COSIM) project Computational, Theoretical and Environmental Science Divisions Marine Trace Gas Simulations in COSIM Scott Elliott, Mathew Maltrud, Shaoping Chu and Carrie Dean The Climate Ocean Sea Ice Model team, Los Alamos National Laboratory David Erickson, Climate and Carbon Research Institute, Oak Ridge National Laboratory Collaborators: NCAR, Other DOE Laboratories, Members of NOPP Paradigm, University of California and Maine, MBARI Sponsors: U.S. Department of Energy Scientific Discovery through Advanced Computing (SCIDAC) and Climate Change Prediction Program (CCPP), National Ocean Partnership Program (NOPP), University of California President’s Office, Los Alamos LDRD 1

2. TRACE GAS MODULE • Tasked to add a modular simulator for multiple climate relevant volatiles • Initial tests on demonstration mechanisms for DMS(P), MeBr, N2O, propylene • Runs alongside DML and adopts POP 2 structure • Sulfur cycle focus of early coupling to CCSM atmosphere in CAM • Mechanism since refined through plant subclassification and cell internal regulation • Next step for the module is attachment of complete set of aerosol and ozone influencers • Hence CO photochemistry in development, NMHC fluxes evaluated for oxidant influence • Simple N2O and CH4 runs have been extended to 100 years • Recurring themes: microbial ecology, unification and automation 2

3. Schwartz/Andreae

4. Performance, Portability, Transparency CAM CCSM Land Processor POP Volatiles Ecology Other Code Samples: s_dms_small = s_dms_diat = s_dms = S r_dms_bac = r_dms_phot = r_dms = S t_dms = S S

5. Phyto Resolution and S Regulation Transfer Algorithm (C/N classes) S classes jPAR(DMS) kSRS,i Diatoms Diatoms DMS DMSO etc. t Small (with Cocco) Other Blue terms subject to scaling and cryo-, osmo- or grazing regulation functions DMSP Cocco Cyano New bins blue, pathways dashed kSRS,zoo Food item weighted kBNB, NB=f(NPn) Phaeo Diazos Diazos Zoo Bacteria

6. +/-30o, Conc, 2ndPar Rs=0.1, Diat low, Sp low, Kettle Clockwise from upper left: all Rs=0.1, diats 0.01, Kettle climatology, small noncoccos 0.01. Optimization +/-30o, 2nd order bacterial sink, PAR photochemical proportionality

7. Scaling varies with Chl, Pac to Atl

8. UV portion of short wave rises 2X from 30 to 60 degrees

9. Biogeographic View of the Surface Sea

10. Regional Fluxes, 10-17 Mole/cm2s

11. CH4 Tracer 8 at 2 and 10 Years

12. Surface section (butterfly) for 10N20, 30 years

13. TRACE GAS FUTURES • Install switches within a DMS/CO/NMHC suite • N cycle now topical, return to N2O to address de- and nitrification yields • Methane now produced in POP open ocean by archaeans, must expand to shelf zone • Other tractable compounds include OCS, H2S, NH3, isoprene, organohalogens • Aim at SOLAS relevance and entrain external experts • Continuing themes: atom/energy conservation, microbial and general complexity • Automated, unified and conservative biogeochemical preprocessing needed • Work through composition of cell classes, stoichiometries of metabolism, from the genome • Employ set theory/logic, relational data base, object orientation and CASE principles 13

14. Pacific Basin December 1996

15. Seasonal Surface DMS

16. Selected CH3Br and C3H8 Distributions

17. Global opt, dev/sd, Const R, GG, StepG, 2ndG, Gd10

18. +/-30o, 2ndPar Rs=0.1, Diat low, Sp low, Kettle. 150W Concentration Sections, +/- 30 Degree Optimization 2ndPAR Key: Red-Rs 0.1, dark and light blue-diatoms and noncoccos low. Black is Kettle, note constant R only adequate in tropics and subtropics

19. Latitude 70S 60S 50S 40S 30S 20S 10S 0S Kettle Pacific 10 10 1 1 1 1 3 3 CCSM species Smalls Diat Smalls Diat Smalls Diat Smalls Diat Smalls Diat Smalls Smalls Smalls Diat Single Rs 0 1 3 3 1 1 3 3 Laboratory Rs 0 1 1 1 1 1 1 1 Scale by 3 0 3 3 3 3 3 3 3 Tracegas_Mod Phaeo Diat Phaeo Diat Diat Eukar Diat Eukar Cyano Eukar Cyano Eukar Eukar Cyano Diat Eukar Laboratory Rs 0 10 3 3 1 1 3 3 S Regulation 0 10 1 1 1 1 3 3 Resolution/Regulation Test Strategy All values are round DMS nM. CCSM(DML) carbon lumps small phytoplankton excluding the coccolithophores, which are few. Tracegas_Mod now segregates cyanophytes (low S) and phaeocystis (high S). Reductions 40-50 S are assigned to cryo/grazing protection or osmoregulation. Eukar signifies pico/nano non- bacterial plants as defined in Gregg et al. 2003. .

20. Global Cyano/Cryo/Phaeo at factors 4,5 Scale factor is the product of unspecified simultaneous increases in disruption rate and maximum average intracellular DMSP

21. Factors 4,5 and Kettle. 150W Concentration Sections, Cyano/Cryo/Phaeo Sulfur Cycle Key: Color- Scale factors 4 and 5 Black is Kettle -note that a single set of plant S/N is now sufficient

22. Tropical UV %, constant bacterial uptake, PMEL in black 22

23. Addition of Q10 dependence 23

24. CO consuming specialists computed under grazing control 24

25. Global CO Distribution, T:2 is month, T8CO is blue tracer 25