chapter 3 (1) Flashcards
What is the bay model
The bay model is basically a downsized reconstruction of an area in northern california - an area the size of the state of rhode island in the US.
Over 6000 square meters large
Bay model over 1000 timest smaller than in real life
Model can be filled with water
Mimics tides and currents
target system (or target)
The real world system the scientists want to study using a model
why cant you always build identical models
in the case of the baymodel this wouldnt work because the model wouldve been far too big and it wouldve taken too much time to see the results
exemplification
For a model to exemplify some group of target systems, it must itself be one of the target systems. Such a model is called an exemplar. Researchers can use an exemplar to represent the broader class of targets that includes the exemplar and can thus draw conclusions about the whole class of targets by investigating the exemplar
E.g. the fruit fly is a common model organism in genetics and developmental biology. Just like mendel used pea plants to understand how certain characteristics are passed from one generation to the next, biologists have used the fruit fly to learn how genes influence the development of embryos from single cells to mature organisms.
general pattern of how models tend to be constructed and used in science
- specificatino of the target system
- construction of the model
- analysis of the model
parameter
A quantity whose value can change in different applications of a mathematical equation but that only has a single value in any one application of the equation
assumption (models)
a specification that a target system must satisfy for a given model to be similar to it in the expected way
Idealizations
Assumptions made without regard for whether they are true, often with full knowledge that they are false
Robustness analysis
One way of determining which models are trustworth for predicion and explanation - especially when their targes are highly complex systems like the climate or predatory-prey interactions.
Robustness analysis begins by
Generating multiple models of a target.
For example, climatologists develop several distinct models for prdicting changes in the temperature in a specific region. If multiple meteorological models with different variables, parameters and assumptions all predict an upcoming increase of temperature in the region, this prediction is robust