Systems Science and Modeling for Ecological Economics pptx

[...]... sustainable parts and vice versa This is especially true for living, dynamically evolving 16 Systems Science and Modeling for Ecological Economics systems “You cannot sum up the behavior of the whole from the isolated parts, and you have to take into account the relations between the various subordinated systems and the systems which are super-ordinated to them in order to understand the behavior of... the elements and processes in our system? How much detail about them do we need and can we afford? Do we have enough information about 18 Systems Science and Modeling for Ecological Economics all of them, or some of them are entirely unknown? Which are the limiting ones, where are the gaps in our knowledge? What are the interactions between the elements? We might already need to go back and forth from... Institute for Ecological Economics and its director, Robert Costanza, provided a stimulating and helpful environment for developing various ideas and applications I very much appreciate that For almost a decade I have been teaching a modeling course as part of the MSc Program in Environmental and Natural Resource Economics at Chulalongkorn University in Bangkok I am grateful to Jiragorn and Nantana... Ecological Social Social Economic Ecological Economic C Ecological Social Economic Figure 1.4 Different ways to present the ecological economic–social hierarchy in the Earth system Hierarchies are subjective and serve particular purposes of the analysis Models and Systems 15 with a price for ecological goods or services, and calculate how much money you need to pay to compensate for a ruined wetland... hierarchy in a different way As with modeling in general, the type of hierarchy that we create is very much driven by the goals of our study The hierarchical approach is essential in order to place the study object within the context of the macro- and micro-worlds – that is, the super- and subsystems – relative to it 14 Systems Science and Modeling for Ecological Economics According to T Saaty (1982),... examples of wind tunnels and how they are used, see http://wte.larc.nasa.gov/.) Physical models are very useful in the “what if?” analysis They have been widely used in engineering, hydrology, architecture, etc In Figure1.1 we see a physical model developed to study stream flow It mimics a real channel, and has sand and gravel to 4 Systems Science and Modeling for Ecological Economics Figure 1.1 A physical... references for more in-depth real-life examples of different kind of models, systems, challenges and solutions Best of all, learn to apply your systems analysis and modeling skills in your everyday life when you need to make small and big decisions, when you make your next purchase or go to vote Learn to look at the system as a whole, to identify the elements and the links, the feedbacks, controls and forcings,... efficiently tune the system into the desired state or set it on the required trajectory 6 Systems Science and Modeling for Ecological Economics In all cases, we need to compare the model with the prototype and refine the model constantly, because it is only the real-life system and its behavior that can serve as a criterion for model adequacy The model can represent only a certain part of the system that is... are melting and releasing huge amounts of some gases into the atmosphere, and apparently these gases happen to be just the ones that are causing the temperature to rise These are called greenhouse gases The temperature started to rise because we have put too much of these gases into the atmosphere already 12 Systems Science and Modeling for Ecological Economics So now it is becoming warmer and the bogs... in a hierarchy The system is influenced by the higher levels and by similar systems at the Models and Systems Figure 1.3 13 Hierarchies in systems Systems may be presented as interacting subsystems Systems themselves interact as parts of supra -systems There are various hierarchical levels that can be identified to improve the descriptions of systems in models Elements in the same hierarchical level are . alt="" Systems Science and Modeling for Ecological Economics This page intentionally left blank Systems Science and Modeling for Ecological Economics Alexey. Systems thinking Models and Systems A model is a simplifi cation of reality 2 Systems Science and Modeling for Ecological Economics pronounce. The words