In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards . Air Pollution is causing 4,000 premature deaths per year , including health costs over US$8 billion. The System Dynamics Causal Loop Diagram developed herein shows an initial study o
Air Pollution Environment Heating
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards. Air Pollution is causing 4,000 premature deaths per year, including health costs over US$8 billion.

The System Dynamics Causal Loop Diagram developed herein shows an initial study of the dynamics among the variables that influences the accumulation of PM in the air, in particular the case of Temuco, in the South of Chile. In Temuco, 97% of the PM inventories comes from the combustion of low quality firewood, which in turns is being burned due to its low price and cultural habits/tradition.
Clone of Air Pollution Dynamics - Firewood Combustion
QUT
Modeling forest succession in a northeast deciduous forest.
Succession Ecology Environment
Modeling forest succession in a northeast deciduous forest.
Lab1 Forestry Succession Model
Owen Stuart
6
Insight diagram
Jute Bag Recycling Environment Beggary Cleanliness
Clone of jute bag project: prototype
Nirmal Chandra
STEM-SM combines a simple ecosystem model (modified version of VSEM; Hartig et al. 2019) with a soil moisture model (Guswa et al. (2002) leaky bucket model). Outputs from the soil moisture model influence ecosystem dynamics in three ways.  (1) The ratio of actual transpiration to maximum evapotran
GEG5224 Ecosystem Ecology Environment Carbon Productivity Decomposition Evapotranspiration Water Soil moisture
STEM-SM combines a simple ecosystem model (modified version of VSEM; Hartig et al. 2019) with a soil moisture model (Guswa et al. (2002) leaky bucket model). Outputs from the soil moisture model influence ecosystem dynamics in three ways. 
(1) The ratio of actual transpiration to maximum evapotranspiration (T/ETmax) modifies gross primary productivity (GPP).
(2) Degree of saturation of the soil (Sd) modifies the rate of soil heterotrophic respiration.
(3) Water limitation of GPP (by T/ETmax) and of soil nutrient availability (approximated by Sd) combine with leaf area limitation (approximated by fraction of incident photosynthetically-active radiation that is absorbed) to modify the allocation of net primary productivity to aboveground and belowground parts of the vegetation.

Ecosystem dynamics in turn influence flows of water in to and out of the soil moisture stock. The size of the aboveground biomass stock determines fractional vegetation cover, which modifies interception, soil evaporation and transpiration by plants.

References:
Guswa, A.J., Celia, M.A., Rodriguez-Iturbe, I. (2002) Models of soil moisture dynamics in ecohydrology: a comparative study. Water Resources Research 38, 5-1 - 5-15.

Hartig, F., Minunno, F., and Paul, S. (2019). BayesianTools: General-Purpose MCMC and SMC Samplers and Tools for Bayesian Statistics. R package version 0.1.7. https://CRAN.R-project.org/package=BayesianTools

Clone of Simple Terrestrial Ecosystem Model - Soil Moisture (STEM-SM)
MAC
This model provides a dynamic simulation of the Sverdrup (1953) paper on the vernal blooming of phytoplankton. The model simulates the dynamics of the mixed layer over the year, and illustrates how it's depth variation leads to conditions that trigger the spring bloom. In order for the bloom to occ
Primary Production In The Sea Environment
This model provides a dynamic simulation of the Sverdrup (1953) paper on the vernal blooming of phytoplankton.

The model simulates the dynamics of the mixed layer over the year, and illustrates how it's depth variation leads to conditions that trigger the spring bloom. In order for the bloom to occur, production of algae in the water column must exceed respiration.

This can only occur if vertical mixing cannot transport algae into deeper, darker water, for long periods, where they are unable to grow.

Sverdrup, H.U., 1953. On conditions for the vernal blooming of phytoplankton. J. Cons. Perm. Int. Exp. Mer, 18: 287-295
Blooming of phytoplankton & Oyster growth
Niels Van Rosmalen
The purpose of this deer management model is to explore the capacity of wildlife management actions to help us adapt to the effects of climate change.
Ecology Environment Climate Change Deer Cervids Wildlife Management

The purpose of this deer management model is to explore the capacity of wildlife management actions to help us adapt to the effects of climate change.

Clone of Story Telling - Deer Management Under Climate Change
Jeb Eddy
Simple (Kind of) food web of the Cane Toad Species. Includes different levels of consumers including predators.
Environment Animal Species Cane Toad FoodWeb Food
Simple (Kind of) food web of the Cane Toad Species. Includes different levels of consumers including predators.
Clone of Cane Toad Food Web
Manas Jain
Insight diagram
Social Economic Environment
Leverage points interactions
AAzyan Murray
This model shows the growth of two organisms competing for a limiting resource (space) .
Environment Feedback Logistic
This model shows the growth of two organisms competing for a limiting resource (space) .
2-Daisy Growth
Noel Urban
Simple conceptual site model of AFFF PFAS site contamination fluxes.
Environment Estuary Ecology Trophic Levels FOOD WEB
Simple conceptual site model of AFFF PFAS site contamination fluxes.
PFAS contamination model
Bruce Gray
Insight diagram
Environment Systems ENV221 Watershed
Clone of ENV 221 Assignment 2 - Watershed Stock&Flow
Mike Turner
Insight diagram
Environment
Global Warming
Ryan Kusnadi
5
•Average (Status Quo) Case –Last 30 years of historical EAA data –Used the past to predict the future –Represents the status quo case –Includes the dry portion  and wet portion of AMO cycle
Aquifer Sustainability Environment
•Average (Status Quo) Case
–Last 30 years of historical EAA data
–Used the past to predict the future
–Represents the status quo case
–Includes the dry portion  and wet portion of AMO cycle
EA model trying scenario of water demand (Status quo scenario)
David Anderson
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards . Air Pollution is causing 4,000 premature deaths per year , including health costs over US$8 billion. The System Dynamics Causal Loop Diagram developed herein shows an initial study o
Air Pollution Environment Heating
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards. Air Pollution is causing 4,000 premature deaths per year, including health costs over US$8 billion.

The System Dynamics Causal Loop Diagram developed herein shows an initial study of the dynamics among the variables that influences the accumulation of PM in the air, in particular the case of Temuco, in the South of Chile. In Temuco, 97% of the PM inventories comes from the combustion of low quality firewood, which in turns is being burned due to its low price and cultural habits/tradition.
Clone of Air Pollution Dynamics - Firewood Combustion
Marlon Bishop
Insight diagram
Environment Atmosphere
Carbon Cycle
Liz
Two households with PV systems and electric vehicles sharing a battery and connected to the grid. What are the advantages? This model prototypes the working of an Smart Grid with Electric Vehicles The objective is testing the theoretical advantages of batteries (also batteries in Electric Vehicle
Energy Environment Electric Vehicles Renewable Energies Home Storage
Two households with PV systems and electric vehicles sharing a battery and connected to the grid. What are the advantages?

This model prototypes the working of an Smart Grid with Electric Vehicles

The objective is testing the theoretical advantages of batteries (also batteries in Electric Vehicles) in combination with renewable energies. The model considers two houses, that store energy both in Electric Vehicles (Vehicle to Grid), and in a communal battery.

Except when specified otherwise, the units of all variables are expressed in W/h.

Press "Story" in the lower bar for a guided tour over the model. Better seen at 50% zoom.

by Carlos Varela (cvarela@gmx.at)
Clone of Vehicle to Grid Simulation
Ida Mannoh
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amo
Population Growth Demographics Environment

The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors.


Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amount of non-renewable resources (which could occur through the development of better exploration technologies) improve our future? Also, experiment with the start date of a low birth-rate, environmentally focused policy.

Clone of The World3 Model: A Detailed World Forecaster
Gyula Dörgő
Insight diagram
Food Chain Environment
Taiga biome food chain
Robbie Marshall
Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Lakes And Reservoirs Environment Eutrophication
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Clone of Vollenweider model
Monique Beyer
Integrated Climate Model
Environment Climate Weather
Integrated Climate Model
Integrated Climate Model
Guy Lakeman
Insight diagram
Environment Plastic
Clone of Poster plastic Tijmen Mirte Fleur
Coen Klein Douwel
10 months ago
This model uses simple functions (converters, cosine) to simulate the water balance inside a reservoir.
Environment Water Quality Hydrology
This model uses simple functions (converters, cosine) to simulate the water balance inside a reservoir.
Clone of Water balance in a reservoir
Brett Gracely
This is a model representing bushmeat, nutrition, and ebola as it relates to biodiversity and overfishing.
Environment Biodiversity
This is a model representing bushmeat, nutrition, and ebola as it relates to biodiversity and overfishing.
Bushmeat Model (EPS)
Caroline Hall
Primitives for Watershed modeling project. Click Clone Insight at the top right to make a copy that you can edit. The converter in this file contains precipitation for Phoenix only.
Rainwater Water Environment
Primitives for Watershed modeling project. Click Clone Insight at the top right to make a copy that you can edit.

The converter in this file contains precipitation for Phoenix only.
Clone of Clone of Primitives for Rainwater Harvesting -Phoenix ENVS 270 F21
Elle Appell