Category: DEW

{ Digital Earth Watch Contents } { All GSS Books } Materials: Software: ColorBasics* Charts: Tri-color Creation Chart Tri-color Prediction Chart Tri-color Reference Chart *The author of ColorBasics software, John Pickle, has a website where you can find new web-based apps on his website’s Color Vision page: Detect Change in Color Detect Differences Between Colors […]

Chapter 3 { Digital Earth Watch Contents } Plants are indicators of the quality of the local environment that impacts all living creatures in the area. Can we examine plants to be able to read their signs of an unhealthy environment and be able to identify the causes of the problems? To do that, it’s […]

The Digital Earth Watch (DEW) project grew from a NASA grant project titled Measuring Vegetation Health. Its goal was to teach about how monitoring the health of vegetation can be done at various scales: from individual plants to large scale ecosystems. See Overview. Contents Chapters Investigations Challenges 1. Digital Image Basics 1.1 How Is Light […]

Challenge using DigitalImageBasics SoftwareChange the colors of this picture so one yellow circle is displayed on a completely black background.To find this picture, use the “Colors” window in DigitalImageBasics and select the picture “Sample: Color Circles 1″There are three solutions to this challenge.See the tutorial on DigitalImageBasics for guidance. DigitalImageBasics is available in the DEW software bundle. Bonus Challenge: Display only one white circle on a black background. […]

Digital Earth Watch (DEW) grew from a NASA education grant project, Measuring Vegetation Health.  It has a  whole separate website.