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Scale, Scope, and Power Laws in Environmental Science. Part II.

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... Definition of Scope The Scope of Instruments Multiscale Analysis is Accomplished by Systematically Changing the Scope spatial temporal mass Method ... – PowerPoint PPT presentation

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Title: Scale, Scope, and Power Laws in Environmental Science. Part II.


1
Scale, Scope, and Power Laws in Environmental
Science. Part II.
David Schneider Memorial University, St.
Johns, Canada
Environmental Science 6000 17 September 2009
2
Scale, Scope, and Power Laws in Environmental
Science
  • Scale Dependence
  • examples and definition
  • application (student examples)
  • Space-Time Diagrams
  • examples
  • group projects in class
  • Calculation across scales
  • examples with background
  • examples (worked in groups)
  • Summary

3
Scope of Phenomena, Impacts, and Action
  • Examples
  • Coral Reefs
  • H1N1
  • meHg in fish

4
Quantitative Definition of Scope The Scope of
Phenomena
5
Definition of Scope The Scope of Instruments
6
Multiscale Analysis is Accomplished by
Systematically Changing the Scope
Method of changing scope
Applications
spatial
temporal
mass
7
Graphical Expression of Scope Space Time
Diagrams
Scope (a ratio) is the vertical or horizontal
distance in space-time diagrams
8
Displaying Scope Space-Time Diagrams
The first space-time diagrams in ecology come
from Steele (1978)
Conceptual
Instrumental
9
Displaying Change in Scope Space-Time Diagrams
Diagrams showing spatial and temporal scope have
become increasingly common.
10
Space-Time Diagrams The Problem of Scale
Environmental scientists collect data from
limited areas, at small spatial scales.
The questions they address extend over large
areas, at the scale of populations and ecosystems.
11
Scope Diagrams Statistical Scale-up
12
Utility of the Concept of Scope
-more insightful literature reviews -workshop
setting (what are you talking about?) -operationa
lly defined science -derive one power law from
another -test predictions
13
Utility of the Concept of Scope in a Workshop
Setting
Case Study Manukau monitoring
Conceptual Diagram
Instrumental Diagram
14
Utility of the Concept of Scope in a Workshop
Setting
Increase extent of experiment ? Increase
resolution of model ? Develop embedded model
? Develop power law ?
15
Summary - Scope Diagrams
  • Characterization of
  • Scale of phenomena
  • Scale of natural processes
  • Scale of human impact
  • Scale of current information
  • Scale of feasible research activity
  • Comparison
  • Research planning

16
Scale, Scope, and Power Laws in Environmental
Biology
Group project Working in groups of 4 (or 3 is
possible), construct a conceptual scope diagram.
Then construct an instrumental scope diagram.
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