Ashley McCloud's Work


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#1

Terrestrial Carbon Cycle

The model is suppose to help, learn and investigate the flow of carbon between the atmosphere and la ... Read more
The model is suppose to help, learn and investigate the flow of carbon between the atmosphere and land plants and soils through photosynthesis and respiration. The key questions we want to understand are: ● How does the plant fertilization feedback work? ● Are plants taking up a significant amount of the carbon humans are emitting? ● Can we solve the climate change problem by planting trees to take up our CO​2​?
model366 downloads
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56.6
#2

Global Energy Balance and the Greenhouse Effect

The flows of light energy toward and away from the Earth. Energy comes in from sunlight, but some of ... Read more
The flows of light energy toward and away from the Earth. Energy comes in from sunlight, but some of its reflected back away from Earth, depending on the planet's albedo. The rest is absorbed by the Earth's surface and stored there. The Earth's surface gives infrared blackbody radiation according to the Stefan-Boltzmann law. A balance is reached when the inflowing solar energy exactly equals the outflowing infrared energy.
model201 downloads
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40.1
#3

Bacterial Growth

Stimulating a colony of bacteria. We start off with just a few, but every once in a while, one of th ... Read more
Stimulating a colony of bacteria. We start off with just a few, but every once in a while, one of them divides in two, adding a new bacterium to the colony.
model96 downloads
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17.4
#4

The Leaky Bucket

For this model, we're going to assume that the outflow rate is proportional to the volume of water i ... Read more
For this model, we're going to assume that the outflow rate is proportional to the volume of water in the bucket multiplied by the size of the hole.
model94 downloads
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16.8
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Sim App (Sim)

An interface that allows users to interact with a model.

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Sim apps allow users to interact with a model using buttons, sliders, knobs, tables, graphs, and storytelling. These interactions help users understand how parts of a system interact.

Interfaces are created by model authors in the Stella desktop software and can be uploaded to the isee Exchange.

Model

A diagram that represents how elements in a system influence one another.

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Models are mathematical representations of how elements in a system are connected and interact (e.g., ecosystems, organizations, supply chains). When running models on the Exchange, results can be viewed in output devices like graphs and tables.

Models appear in the isee Exchange directory when authors upload them from the Stella® desktop software or create them with Stella Online™.

Causal Loop Diagram (CLD)

A map that represents the feedback structure of a system.

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CLDs are high-level maps that represents the feedback structure of a system and easily communicate the essence of a model. They appear in the isee Exchange when authors upload them from the Stella desktop software or create them with Stella Online™.