Model Files for Modeling the Environment

(note: You can construct most of the models in the book based on the
description in each chapter. This page provides downloadable files
for models that can not be constructed from the information in the book.)

River Basin Planning:
The Idagon Simulators (first mentioned in chapter 1) --- STELLA

Salmon Population Models
Smolts Migration Model chapter 15 --- STELLA
Salmon Harvest Simulator from 1st Ed. --- STELLA or VENSIM
Salmon Harvest Simulator (Fig 15.13, 2nd Ed) --- STELLA
Salmon Harvest Simulator (2nd Ed.) on the WEB with Stellla's NETSIM
Salmon Harvest Simulator (2nd Ed.) with VENSIM PLE

Daisyworld Design Challenge
Daisyworld Simulator (Fig. 11.9) -- STELLA
Daisyworld on the WEB with NETSIM
Daisyworld (to test span of control) -- VENSIM

Electric Vehicles, Air Pollution and Feebate Management
Feebate Management Model (Fig. 16-4) --- STELLA
Feebate Management on the WEB with NETSIM
Feebate model (operate in SyntheSim mode) --- VENSIM
Market share calculation on page 216 --- Excel Spreadsheet

The Pesticide DDT in the Environment
Models and Stella Equations for DDT models --- chapter 22