JON HENNINGKEVIN KOWALCHUK

ALEX SUMMITT

GLE 444: Practical Applications of GPS

Mapping the Henry Vilas Zoo

Presentation Overview

1. Introduction

2. Methods and Data

3. Data Analysis

4. Results and Discussion

5. Conclusion and Recommendations

Introduction

Objectives: Create a virtual ‘Vilas’ zoo

experience

Motivation: Single map to pre-plan a visit

Accuracy: 1-10 m (~5 m)

Audience: Henry Vilas Zoo visitors

Location: Madison, WI

Methods and Data

Equipment: 3 hand-held GPS units, digital camera, laptop

Duration: 27 waypoints 10-15 minutes a piece, total: 7 hours

Type of Data: Position coordinates Digital photographs Written descriptions

Precision

Precision Comparison of Longitude and Latitude

Want to determine if we have better measurements of either latitude or longitude

Since all data is clustered around 1:1, there is no bias

Receiver Comparison

Lessons Learned

1. Interference: trees!

2. Dress for weather

3. Bring extra batteries

4. TIME!

Specifications Met

Most points fell within the accuracy range of 1 –

10 mFour points in particular varied greater than the

expected 1 – 10 m accuracy

One point could not be taken due to interferenceGoogle Earth showed accurate locations to

interpret between different animal exhibits and locations.

Final Results

Google Earth

Questions?