A Remote Sensing Tool for the classroom

Home page

Introduction

Using Remote Sensing

  1. Obtaining
  2. Linking
  3. Subsetting
  4. Compositing
  5. False coloring
  6. Ratioing
  7. Supervised classification

Examples

Pre-post test

What is this?

This is a  tool to acquire and manipulate  satellite images.

Remote sensing is just as it sounds. It is the obtaining of information from a distance.

Students use websites such as Google Earth, Mapquest, Earthnow and Mapslive to view their world from the air and space.  With this web tool students can do more than observe the images. They can choose, acquire, manipulate and analyze their own images to answer questions about how land changes and how those changes affect wildlife, people, and the future or create Earth art. 

In the Introduction sections, Section A, "Kinds of Remote Sensing" explores different kinds of remote sensing while Section B, "The Basics" explains how remote sensing works. Under the "Using Remote Sensing" parts, there are directions and resources for image acquisition and analysis.

This tool is for teachers and students with a basic background in remote sensing or a motivation to learn the basics. It uses Multispec©, a free downloadable software program to analyze images, and Ohiolink and Glovis to download LANDSAT images on PC computers. The author has included several classroom-tested activities using Ohio images which are provided at no cost through Ohioview.  Soon, Fall-Spring 2008-2009, LANDSAT images will be free and available in other locations. For information go to http://landsat.usgs.gov/products_data_at_no_charge.php  

A new alternate site for obtaining pre-selected images for the continental USA is: http://mvh.sr.unh.edu/Landsat/ .

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