slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Thomas Maxwell Alexey Voinov Robert Costanza PowerPoint Presentation
Download Presentation
Thomas Maxwell Alexey Voinov Robert Costanza

Loading in 2 Seconds...

play fullscreen
1 / 40

Thomas Maxwell Alexey Voinov Robert Costanza - PowerPoint PPT Presentation


  • 102 Views
  • Uploaded on

Collaborative Spatial Ecological-Economic Modeling for Sustainable Management of Watershed Resources. Thomas Maxwell Alexey Voinov Robert Costanza. Collaborative Modeling. Realistic models require multiple teams Modelers typically not computer scientists

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Thomas Maxwell Alexey Voinov Robert Costanza' - oswald


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1
Collaborative Spatial Ecological-Economic Modeling for Sustainable Management of Watershed Resources

Thomas Maxwell

Alexey Voinov

Robert Costanza

Institute for Ecological Economics

collaborative modeling
Collaborative Modeling
  • Realistic models require multiple teams
  • Modelers typically not computer scientists
  • Stake holders must be integrated into the decision making process
  • Communication to a wide audience

Institute for Ecological Economics

three stage modeling process
Three Stage Modeling Process
  • Scoping models
    • Consensus building
  • Research models
    • Understanding dynamics
  • Management models
    • Exploring scenarios

Institute for Ecological Economics

scoping workshops
Scoping Workshops
  • Constructivist learning.
  • Paradigm expansion.
    • (narrow,linear,static) ->
    • (broad,nonlinear,dynamic)
  • Conflict resolution.
  • Consensus building.
  • Collective decision making.
  • Develop management scenarios.

Institute for Ecological Economics

supporting collaborative modeling
Supporting Collaborative Modeling
  • Graphical modeling tools
  • Modular model development
  • Transparent high performance computing
  • Integrated data access
  • Integrated visualization
  • Variety of formalisms and frames

Institute for Ecological Economics

slide6

Model viewed and manipulated graphically.

  • Opens model development to non-programmers.
  • Facilitates rapid development of models.
  • Enforces modeling standards.
  • Facilitates collaboration in model development.
  • Graphical representation serves as a blackboard.
  • Graphical Modeling

Institute for Ecological Economics

slide7

STELLA Model

Institute for Ecological Economics

spatial modeling framework
Spatial Modeling Framework

Institute for Ecological Economics

two types of modules
Two types of modules
  • Ecological Modules
    • No general theory.
    • Primary focus on modeling.
    • Examples:
      • Macrophytes, Epiphytes, Consumers, Phytoplankton
    • Modules developed in Stella/SME.
  • Physical Modules
    • Theory well known (e.g. Navier Stokes).
    • Primary focus on computation.
    • Examples:
      • hydrodynamics, atmospheric dynamics.
    • Modules developed externally and linked to SME.

Institute for Ecological Economics

typical state variables
Typical State Variables
  • Examples of some typical state variables:
    • (Dissolved Inorganic) Nitrogen, Phosphorus
    • Water (Saturated, Unsaturated, Surface, Snow)
    • Detritus
    • Macrophyte (Non)Photosynthetic Biomass
    • Consumers
    • Deposited Organic Matter
    • Phytoplankton
    • Epiphytes

Institute for Ecological Economics

slide11

Collaborative Spatial Modeling Workbench

  • Includes integrated support for:
    • Icon-based unit module development
    • Module archiving and reuse
    • Integration of multiple spatial representations
    • Distributed computing
    • Web-based modeling & simulation
      • Configuration, control, and visualization of remote simulations.
    • Data access and visualization
    • Real-time links to other apps (e.g. Swarm).
  • Spatial Modeling Environment

Institute for Ecological Economics

spatial modeling environment
Spatial Modeling Environment

Module

Repository

Module

Builder

Simulation

Driver

Unit model

Graphical

modeling

Spatial model

HPC

STELLA

Code Generator

PowerSim

Module

Constructor

SME Module

Editor

Java

Portal

SMML Module Library

Institute for Ecological Economics

sme java portal
SME Java Portal
  • Desktop access to remote supercomputing resources
  • Web-enabled ( using java servlets )
  • Grid enabled ( using globus gram utility )
  • Java applet <-> Java servlet <-> C++ apps
  • Portal interfaces include:
    • Workspace management
    • Module development
    • Model configuration
    • Simulation initialization, control, & visualization

Institute for Ecological Economics

workspace manager
WorkSpace Manager

Institute for Ecological Economics

configuration manager
Configuration Manager

Documentation Panel

Documentation of

selected command

Model Panel

Hierarchical View of model objects

Associated commands as boxes

Command Panel

Structure of selected command

Property Panel

Command Arguments

Institute for Ecological Economics

parameter editor
Parameter Editor

Edit Simulation

Parameters

Spreadsheet format

Institute for Ecological Economics

simulation control
Simulation Control

Control Execution

View Model Structure

Trace Dependencies

View Model Equations

Configure Visualization

Institute for Ecological Economics

sme python shell
SME Python Shell

Institute for Ecological Economics

slide19

ViewServer Control Panel

  • Associates DataSets
  • with Viewers
  • Creates Viewers
  • Manages DataSets

Institute for Ecological Economics

slide20

2D Animation Viewer

  • 2D Animation Control
  • Dynamic and manual rescaling
  • ColorMap editor
  • Data viewer (point/spreadsheet)
  • Export as GIF or JPG

Institute for Ecological Economics

slide21

3D Animation Viewer

  • Dynamic Landscapes
  • Variable1 -> Altitude
  • Variable2 -> Color
  • Mouse controlled navigation

Institute for Ecological Economics

image spreadsheet
Image Spreadsheet
  • Simultaneous display of variables at multiple timesteps
  • Useful for time series comparisons
  • Configure: start time, time step, magnification, scaling, etc.

Institute for Ecological Economics

slide23

Numerical Spreadsheet

  • View spatial data
  • Attach to vis panels
  • Follows animation
  • Export to Stat packages.

Institute for Ecological Economics

agent based modeling in sme
Agent Based Modeling in SME
  • Swarm agents can populate SME landscapes.
  • SME-Swarm integration:
    • http://iee.umces.edu/~villa/swarmsme
  • Swarm classes serve as wrappers for:
    • SME model.
    • SME grid layers.
    • SME spatial variables.
  • Two-way remote data transfer.
  • Built on SNI simulation server architecture:
    • http://iee.umces.edu/~villa/sni

Institute for Ecological Economics

multi grid library
Multi-Grid Library
  • Integrates multiple spatial representations
  • Implements space in SME
  • Major Components include:
    • Cell: Spatially referenced area (or volume) element.
    • Grid: Distributed set of Cells + links.
    • Frame: Hierarchy of distributed Grids.
    • Link: Connection between Cells.
      • Intra-Grid: spatial contiguity.
      • Inter-grid: scaling relations or mappings.
    • Activation Layer: Subset of Cells in a Frame.
    • Coverage: Mapping:: Activation Layer -> floats.

Institute for Ecological Economics

distributed processing
Distributed Processing
  • Spatial grid
  • partitioned over processors
  • Highly parallel application
  • Recursive N-section:
    • excellent load balancing
  • Fully transparent to user

Institute for Ecological Economics

model calibration toolkit
Model Calibration toolkit
  • Built on MPE toolkit:
    • http://iee.umces.edu/~villa/svp/
  • Calculate performance measure (MPE)
    • Estimate of match between model & system.
    • Weighted sum of tests (Bounds, Theil, Freq, etc).
  • Search parameter space to maximize MPE.
    • Evolutionary and gradient searches.
  • Params, tests, & searches configured in SME.

Institute for Ecological Economics

example applications
Example Applications
  • Everglades Landscape Model
    • http://www.sfwmd.gov/org/erd/esr/elm/intro/welcome.htm
  • Patuxent Landscape Model
    • http://iee.umces.edu/PLM
  • Baltimore Ecosystem Study
    • http://baltimore.umbc.edu/lter
  • Great Bay Estuarine Model
    • http://iee.umces.edu/GrBay
  • Illinois TES Models
    • http://blizzard.gis.uiuc.edu/
  • IGERT & CoreModels programs

Institute for Ecological Economics

environmental modeling workbench
Environmental Modeling Workbench

Spatial Modeling Environment

Inputs to multiple models

Coupled

Bio-Hydro

Simulation

Integrated wireless

Sensor web

CavernSoft

Collaborative

Environment

Institute for Ecological Economics

Environmental Hydrology Applications Team

chesapeake bay model
Links components:

Circulation (OM3)

Ecology (SME)

Atmospheric coupling

Chesapeake Bay Model

Institute for Ecological Economics

Environmental Hydrology Applications Team

collaborative virtual environment
Collaborative Virtual Environment

Chesapeake Bay data in CVE with Cave5D/Virtual Director

Institute for Ecological Economics

Environmental Hydrology Applications Team

slide32

SME

Landuse Evolution and Impact Assessment Model

LEAM, University of Illinois at Urbana-Champaign

Institute for Ecological Economics

leam framework

economic

population

social

geography

transport

open space

neighbor- hood

random

fiscal

energy

waste

environ

water

air

habitat

tes

LEAM Framework

L E A M

model drivers

simulation

planning group

planning group

landuse change

impact assessment

sustainable indices

Institute for Ecological Economics

leam portal
LEAM Portal

Institute for Ecological Economics

patuxent landscape model plm
Patuxent Landscape Model(PLM)
  • Resolution - 1 km (200m for subwatersheds)
  • 2562 grid cells
  • A model in each cell: hydrology nutrients (N, P) vegetation
  • Forcing functions: climatic conditions land use map nutrient loadings from
  • -atmosphere -fertilizers -septics -point sources

Institute for Ecological Economics

library of hydro ecological modules
Library of Hydro-Ecological Modules

Institute for Ecological Economics

main drivers
Main Drivers
  • Landuse change - number if cells in different habitat categories and their patterns
  • The total amount of nutrients that is contributed annually from various sources to the watershed. At this time atmospheric deposition is the main source of non-point pollution

Institute for Ecological Economics

results
Results
  • historical land use in 1650, 1850, 1950, 1972, 1990 and 1997;
  • a “buildout” scenario based on fully developing all the land currently zoned for development;
  • four future development patterns based on an empirical economic land use conversion model;
  • agricultural “best management practices” which lower fertilizer application;
  • four “replacement” scenarios of land use change to analyze the relative contributions of agriculture and urban land uses; and
  • two “clustering” scenarios with significantly more and less clustered residential development than the current pattern.

We analyzed 18 scenarios including

Institute for Ecological Economics

sme distribution
SME Distribution

The SME home page:

http://www.uvm.edu/giee/SME3/

Includes:

  • Overview.
  • Technical documentation.
  • Publications.
  • Source code (C++ and java).
  • Links

Institute for Ecological Economics