GEOMORPHIC CHANGE DETECTION

April 30th to May 1st , 2014

Sponsored by:

H. GETTING TO KNOW GCD 6 SOFTWARE

WORKSHOP PLAN – DAY 1… (AFTERNOON)

E. Essential Best Practices to Support GCD

F. Traditional Approaches to Change Detection

G. Change Detection in Raster Calculator vs. GCD

H. Getting to know GCD Software

I. Thresholding AlternativesJ. Recap & Preview of Day 2

1:00 to 1:45

A Plan.. Not a Contract

1:45 to 2:15

2:15 to 3:00

3:15 to 4:00

4:00 to 4:454:45 to 5:00

3:00 to 3:15 BREAK

GCD SOFTWARE

DOD 3• Matlab, Wizard Based• Easy to modify code• Don’t need to know how

to code to use…• Poor Map Visualization• ASCII grids

GCD 4• ArcGIS Plugins (9 &

10)• Stand Alone Version• Big Effort was on

Underlying C++ Library

• Can be ported into stand-alone apps, web apps, or Arc plugins

GCD 5.2.0

• More focus on User Interface

• Flexible Analyses

• Extended Functionality

• More Interactivity w/ Analysis

THIS ANALYSIS USED TO BE CUMBERSOME• GCD 5 made it easier to:

– Robustly estimate errors in DEMs

– Determine significance of uncertainty on DoD & Sediment Budget

– Calculate change in storage sediment budgets (with +/- vol.)

– Quantitatively interpret and spatially segregate budget

http://gcd.joewheaton.org

GCD 6

• New Project Explorer

• Major Back End Improvements

• Cleaner, more logical UI

• Portable Projects• Easier Map Interface• Automatic Reporting• Add-In

ACKNOWLEDGEMENTSMatlab Software & Methods presented developed in

association with:• James Brasington• Steve Darby & David SearGCD 5 Software developed with• Philip Bailey• Frank PoulsenGCD 4 Software developed with:• Chris GarrardFunding from: