1 UIUC ATMOS 397G Biogeochemical Cycles and Global Change Lecture 6: Earth System / Modeling Don...
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1 UIUC UIUC ATMOS 397G ATMOS 397G Biogeochemical Cycles and Biogeochemical Cycles and Global Change Global Change Lecture 6: Earth System / Lecture 6: Earth System / Modeling Modeling Don Wuebbles Don Wuebbles Department of Atmospheric Sciences Department of Atmospheric Sciences University of Illinois, Urbana, IL University of Illinois, Urbana, IL February 4, 2003 February 4, 2003
Transcript of 1 UIUC ATMOS 397G Biogeochemical Cycles and Global Change Lecture 6: Earth System / Modeling Don...
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ATMOS 397GATMOS 397GBiogeochemical Cycles and Global ChangeBiogeochemical Cycles and Global Change
Lecture 6: Earth System / ModelingLecture 6: Earth System / Modeling
Don WuebblesDon Wuebbles
Department of Atmospheric SciencesDepartment of Atmospheric Sciences
University of Illinois, Urbana, ILUniversity of Illinois, Urbana, IL
February 4, 2003February 4, 2003
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Change in Ozone (%) Change in Ozone (%) during June for a fleet of HSCT during June for a fleet of HSCT type aircraft with a cruise altitude of 19-21 km, a total type aircraft with a cruise altitude of 19-21 km, a total
fuel 146 Mlbs/day and EI(NOx)=20 g/kg of fuel.fuel 146 Mlbs/day and EI(NOx)=20 g/kg of fuel.
UIUC 2-D Model (Dutta et al., 2003)
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Modeling Air Quality
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The LithosphereThe Lithosphere
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Plate TectonicsPlate Tectonics
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Modeling the Earth SystemModeling the Earth System
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Types of Models Types of Models
Box Model(s) Reservoirs / pools Fluxes Chemistry or other processes within a reservoir
1-D Model 2-D Model 3-D Model
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Flows in a Flows in a Generalized Generalized
Biogeochemical Biogeochemical CycleCycle
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Generalized Global
Carbon Cycle
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Box Model of the
Global Carbon
Cycle
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Modeling the Carbon CycleModeling the Carbon Cycle
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Modeled Flux of CO2 at Air-Sea Interface
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Modeling the Nitrogen CycleModeling the Nitrogen Cycle
What’s missing?
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Box Model of the Box Model of the Nitrogen CycleNitrogen Cycle
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Modeling the Phosphorous CycleModeling the Phosphorous Cycle
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Grid Structure: 3-D Ocean ModelGrid Structure: 3-D Ocean Model
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Definitions within the model grid. Ai,j,k are signed box surfaces. Due to the
irregular grid, boxes can have more than 6 surfaces. This is important for the setup of the advection/diffusion matrix. Horizontal and vertical velocities are defined at the corresponding surface, whereas concentrations are defined in the center of a box
