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.
DEW software for DEW Investigations
All Images for DEW Investigations (.zip file)
Sensors capturing digital images provide crucial data at all scales, from smart phones to Earth orbiting satellites that have provided stunning pictures of the Earth for decades. Those images have transformed people’s vision of their home planet and have enabled us to study Earth processes in ways that were not possible prior to the space age, thus creating a new field, known as Earth Systems Science. Underlying a mastery of the capture and analysis of digital images is an understanding of vision, light, and color.