Breathing New Life Into Legacy Integrated Surface Groundwater Models Using GIS
UCAR: Teaching Climate with Models: Breathing of the Earth · 6/11/2012 · simple models to...
Transcript of UCAR: Teaching Climate with Models: Breathing of the Earth · 6/11/2012 · simple models to...
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LIVE INTERACTIVE LEARNING @ YOUR DESKTOP
June 11, 2012
UCAR: Teaching Climate with Models: Breathing of the Earth
Presented by: Randy Russell and Scott Denning
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Content intro
Teaching Climatewith Models:Breathing of the Earth
Scott Denning
Randy Russell
Content intro
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Scott Denning introductionScott Denning introduction
Scott DenningProfessor of Atmospheric
Science at Colorado State University
Director of Education, Center for MultiscaleModeling of Atmospheric Processes (CMMAP)
BS in Geology, PhD in Atmospheric Science
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Randy Russell introductionRandy Russell introduction
Randy RussellLead web & interactive
multimedia developer at Spark in Boulder, Colorado
Spark is the science education group at the National Center for Atmospheric Research (NCAR)
BS astrophysics, MS aerospace engineering, PhD in education
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Understanding and Prediction:Modeling the Earth SystemThis is the first in a series of four webinars in which we will use very simple models to explore the way the Earth’s climate works and how it’s changing.
The Breathing of the Earth: Carbon cycling among the land, ocean, and atmosphere
Heating and Warming: The sensitivity of the Earth’s climate to atmospheric CO2
Challenges for Our Children: Projections of the future of Earth’s climate and carbon cycle
Opportunities for Abundance: Solving the problems of energy, carbon, and climate
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What is a Model?Why use Models?Models are idealized or
simplified representationsModels help us to explain
the essential aspects of things or processes in the real world
We can experiment with models to learn how things work
Models can (sometimes) help us predict the future!
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What is a Model?Why use Models?Models are idealized or
simplified representationsModels help us to explain
the essential aspects of things or processes in the real world
We can experiment with models to learn how things work
Models can (sometimes) help us predict the future!
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What is a Model?Why use Models?Models are idealized or
simplified representationsModels help us to explain
the essential aspects of things or processes in the real world
We can experiment with models to learn how things work
Models can (sometimes) help us predict the future!
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What is a Model?Why use Models?Models are idealized or
simplified representationsModels help us to explain
the essential aspects of things or processes in the real world
We can experiment with models to learn how things work
Models can (sometimes) help us predict the future!
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What is a Model?Why use Models?Models are idealized or
simplified representationsModels help us to explain
the essential aspects of things or processes in the real world
We can experiment with models to learn how things work
Models can (sometimes) help us predict the future!
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What is a Model?Why use Models?Models are idealized or
simplified representationsModels help us to explain
the essential aspects of things or processes in the real world
We can experiment with models to learn how things work
Models can (sometimes) help us predict the future!
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Carbon, Life, and Energy
Photosynthesis uses energy from the Sun to convert inorganic air (CO2) to living biomass!
Individual carbon atoms are “strung together” like beads on a string to form longer chain organic molecules
Energy from the Sun is stored in the chemical bonds between carbon atoms in each organic molecule
Most of this energy is released through respiration (back to CO2) when plants are eaten by animals, bacteria, people
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Fossil Fuels
Some of the stored solar energy in biomass can be preserved in fossilized remains
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Fossil Fuels
Some of the stored solar energy in biomass can be preserved in fossilized remains
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Fossil Fuels
Some of the stored solar energy in biomass can be preserved in fossilized remains
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Fossil Fuels
Some of the stored solar energy in biomass can be preserved in fossilized remains
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Fossil Fuels
Some of the stored solar energy in biomass can be preserved in fossilized remains
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Hydrocarbons, Energy, and CO2
CC
CC
CC
CCH
H
HH
H
H
H
H
H
H
CC
C
C
H H
H H
H H HH
O
O
We dig this stuff up and burn it, harvesting the stored energy to power civilization
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Questions? 1
Questions?
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Carbon cycle pre‐industrial
Carbon Cycle pre‐industrial
Carbon Cycle Diagram
Credit: Office of Biological and Environmental Research of the U.S. Department of Energy Office of Science
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STELLA carbon cycle
Stocks & Flows Models(e.g. STELLA)
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Carbon Cycle diagram with Bathtub
Carbon Cycle diagram with BathtubCarbon Cycle diagram with Bathtub
Atmosphere
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John Sterman references
“Bathtub Dynamics: Initial Results of a Systems Thinking Inventory” (2000) L. Booth Sweeney & John D. Sterman
“Understanding Public Complacency About Climate Change: Adults' mental models of climate change violate conservation of matter” (2007) John D. Sterman& L. Booth Sweeney
Bathtub Model
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George Box quote
Using Models in Education
“Essentially, all models are wrong,but some models are useful.”
- George E. P. Box (1951)
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Equilibrium Bathtub pre‐industrial
Equilibrium Bathtub pre‐industrial
Natural Equilibrium (pre-industrial)Average flow in = Average flow out
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Fossil Fuel photos
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Carbon Cycle industrial
Carbon Cycle industrialCarbon Cycle Diagram
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Carbon Cycle diagram with Bathtub
Carbon Cycle diagram with Bathtub
Atmosphere
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Poll – fossil fuel burning –which bathtub?
Poll – fossil fuel burning – which
bathtub?
A
CB
Fossil Fuel CO2 Emissions
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Carbon Cycle diagram with Bathtub
Carbon Cycle diagram with Bathtub
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Poll – Industrial – which bathtub?
Which version of model is betterfor your students?
A B
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Carbon in the Oceans
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sfc
4 km
Layers of Water in the Oceans
Warm (buoyant) water floats on top of cold waterVery cold water in polar winter sinks to the bottomTakes about 1000 years to circulate!
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Much more soluble in cold water
CO2 Dissolves in SeawaterDissolves into cold
polar water and sinks
Travels along surfaces of constant temperature
Upwelling and warming in tropical waters releases CO2 to the air
Winds complete the loop
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Carbon on the Land
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Metabolism of Living Ecosystems
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Questions? 2
Questions?
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Measuring Carbon in the Deep Sea
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Sampling Carbon in the Deep Oceans
each dot is a profile to the bottom!
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(Feeley et al, 2001)
Fossil Carbon Dissolved in the Oceans
Nearly all the fossil CO2is confined near the surface
Some fossil carbon has sunk to the bottom near the poles
Most of the oceans “don’t know we’re here yet”
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Woodwell and Whittaker, 1968
C
Growth
Decay
Forest Disturbance and Succession
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57-year-old
Forest Disturbance and Succession
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CO2 Fertilization Enhances Growth
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Carbon cycle diagram ‐ labeled
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Poll – more drain flow – which bathtub?Poll – more drain flow – which bathtub?
Oceans and Plants AbsorbSome of the Human Emissions
A B
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Half the CO2“goes away!”
• Some years almost all the fossil carbon goes into the atmosphere, some years almost none
• Year-to-year variability in sink activity is much greater than in fossil fuel emissions
• Sink strength is related to El Niño. Why? How?
Where Has All the Carbon Gone?
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Where Has All the Carbon Gone?
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Where Has All the Carbon Gone?Into the oceans
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
Biological pump (slow “rain” of organic debris)
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
Biological pump (slow “rain” of organic debris)Into the land
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
Biological pump (slow “rain” of organic debris)Into the land
CO2 Fertilization (plants eat CO2 … is more better?)
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
Biological pump (slow “rain” of organic debris)Into the land
CO2 Fertilization (plants eat CO2 … is more better?)
Nutrient fertilization (N-deposition and fertilizers)
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
Biological pump (slow “rain” of organic debris)Into the land
CO2 Fertilization (plants eat CO2 … is more better?)
Nutrient fertilization (N-deposition and fertilizers)
Land-use change (forest regrowth, fire suppression, woody encroachment … but what about Wal-Marts?)
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Where Has All the Carbon Gone?Into the oceans
Solubility pump (CO2 very soluble in cold water, but rates are limited by slow physical mixing)
Biological pump (slow “rain” of organic debris)Into the land
CO2 Fertilization (plants eat CO2 … is more better?)
Nutrient fertilization (N-deposition and fertilizers)
Land-use change (forest regrowth, fire suppression, woody encroachment … but what about Wal-Marts?)
Response to changing climate (e.g., Boreal warming)
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Where inflowfrom/outflow
to?
Where does inflow come from?Where does outflow go to?
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Carbon Cycle diagram with Bathtub
Atmosphere
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Three bathtubsAtmosphere
PlantsOcean
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Carbon cycle diagram ‐ labeled
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Available online at Spark
Available online at Spark
Animations online at:
spark.ucar.edu/workshops
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Questions? 3
Questions?
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Thank you to the sponsor of tonight's Web Seminar:
This web seminar contains information about programs, products, and services offered by third parties, as well as links to third-party websites. The presence of a listing or such information does not constitute an endorsement by NSTA of a
particular company or organization, or its programs, products, or services.
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http://learningcenter.nsta.org
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National Science Teachers AssociationGerry Wheeler, Interim Executive Director
Zipporah Miller, Associate Executive Director Conferences and Programs
Al Byers, Assistant Executive Director e-Learning
LIVE INTERACTIVE LEARNING @ YOUR DESKTOP
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