Graphical User Interface (GUI)

LUCAS GUI Setup Window

This is the primary LUCAS window in which the following may be selected:

GRASS mapset
Scenario
Beginning map year
Number of replicates to be run
Number of timesteps per replicate
Habitat of which species should be analyzed
Type of model: pixel or patch-based
Number of maps to be saved

LUCAS Progress Status Window

This window shows progress being made on simulation. The following information is displayed:

Name of the watershed
Name of the current scenario
Current replicate number
Base map year
Current map year

GRASS Monitor Window

This window provided by GRASS displays:

Map of the original land cover
Map of land cover after a transition
Legend describing colors used in maps
Percent of total calculation completed

LUCAS Graph Selection Window

This window allows the user to select any of the following statistics:

Proportion of landscape in each cover type
Area (ha) of landscape in each cover type
Edge:area ratio for each cover type
Amount of edge (km) for each pair of cover types
Total edge (km) in the whole landscape
Number of patches
Mean patch size
Standard deviation of patch size
Size of largest patch
Cumulative frequency distribution of number of patches by size
Mean patch shape (see r.le program, normalized shape index)

Sample LUCAS Graph of Statistics

This window is a graphical representation of the above mentioned statistics.

Simulation in the Little Tennessee River Valley, NC

Description of Simulation: One replicate of 20 timesteps using the pixel-based historical transitions of 1975-1986, applied to a starting land cover map for 1991, is depicted above in the simulation of David Wear's economic model. The actual run-time of LUCAS was approximately 30 minutes, which has been compressed into a matter of seconds.

LUCAS information/ lucas-info@cs.utk.edu
LUCAS developers/ lucas@cs.utk.edu
Tue Jun 27 21:07:22 EDT 1995