NGEE-Arctic: Multi-scale modeling for Arctic tundra · 2014. 3. 6. · NGEE-Arctic: Multi-scale...
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NGEE-Arctic: Multi-scale modeling for Arctic tundra
Presented by Peter Thornton for the NGEE-Arctic Science Team
This research is supported by The Next-Generation Ecosystem Experiments (NGEE Arctic) project of Office of Biological and Environmental Research in the DOE Office of Science.
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Overview
• Dataset development for Barrow study sites • Physics coupling • Biogeochemistry coupling • Dynamic topography
• Drawn from presentations at the NGEE-
Arctic All-Hands meeting, December 2013, San Francisco, with some recent updates
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Intermediate scale grid development
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Gautam Bisht, Bill Riley (LBNL)
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16 Managed by UT-Battelle for the U.S. Department of Energy Presentation_name
CLM-PFLOTRAN Biogeochemistry • Litter/SOM decomposition
– CLM-CN, CENTURY, CLM45 (O2) – Microbial / enzymatic processes, P – DOMs, particulate transport
• Nitrification/Denitrification – CENTURY, CLM45, …
• O2 – O2 diffusion, advection, aerenchyma transport,
consumption
• CH4 – Production, oxidation, diffusion, aerenchyma transport,
bubbling/air-water phase transport Green = developed Blue = in development Red = to be developed
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Updated BGC reaction network and methane module in CLM-Microbe
Simulated CH4 fluxes in Barrow, AK
Xiaofeng Xu, ORNL
CLM-CN+ coupling with PFLOTRAN
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18 Managed by UT-Battelle for the U.S. Department of Energy Presentation_name
Preliminary Coupled Simulation Results
Guoping Tang, Xiaofeng Xu, Fengming Yuan (ORNL) Glenn Hammond (SNL)
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• Area C landscape classification by elevation and standard deviation.
• Soil Organic Matter profiles associated with landscape positions.
Demo Simulations in NGEE Area C at Barrow, AK CLM-CN+ coupling with PFLOTRAN
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• CLM4.5-CN • CLM4.5-CN-PFLOTRAN bgc Coupled
Notes on simulations settings:
• CLM4.5-CN accelerated spinup for 300 yrs at 40x40 grids (2.5 m res.);
• CLM4.5-CN spinup for 42 yrs at same resolution;
• CLM-PF bgc coupled run for 100 yrs (warm-start), for only 6 types of landscape positions.
CLM-CN+ coupling with PFLOTRAN
Demo Simulations in NGEE Area C at Barrow, AK
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• CLM4.5-CN • CLM4.5-CN-PFLOTRAN bgc Coupled
CLM-CN+ coupling with PFLOTRAN
Demo Simulations in NGEE Area C at Barrow, AK
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Track 2: Dynamic topography
Progressive Degradation Jorgenson
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Kinematic deformation, no hydrology
Scott Painter, Ethan Coon, David Moulton and the ATS Team (LANL)