This short video (4:44) helps audiences understand and appreciate the importance of measuring precipitation globally. The role of the Global Precipitation Measurement (GPM) mission to better understand, model and predict where and when too much... (View More) rainfall will occur (resulting in floods and landslides) and where too little rain will fall (resulting in droughts) is examined. (View Less)

This self-paced, interactive tutorial provides learners with an opportunity to learn about remote sensors, and the role remote-sensing instruments play in our understanding of the Earth system. Activities within the tutorial allow learners to... (View More) demonstrate for themselves how atmospheric absorption and the signal-to-noise ratio determine the spectral resolution of a remotely-sensed image. A culminating simulation activity shows learners how engineers must consider design tradeoffs between quality and quantity of data produced. This resource is part of the tutorial series, Satellite Observations in Science Education, and is the second of three modules in the tutorial, Principles in Remote Sensing. (Note: requires Java plug-in) (View Less)