For the InstructorThese student materials complement the Water Science and Society Instructor Materials. If you would like your students to have access to the student materials, we suggest you either point them at the Student Version which omits the framing pages with information designed for faculty (and this box). Or you can download these pages in several formats that you can include in your course website or local Learning Managment System. Learn more about using, modifying, and sharing InTeGrate teaching materials.
A proper stream generally consists of concentrated, channelized flow, even if it only carries water for a few days of the year. In contrast, an upland system may have surface water flow, but the flow is more akin to sheet flow and typically not concentrated into channels.
Figure 15. Examples of Sheet Flow and Channelized Flow
Photo credits: Top panel: Kelly Caylor, licensed under Creative Commons; Attribution-Noncommercial-NoDerivs 2.0 Generic (CC BY-NC-ND 2.0). Bottom panel: Source: Brian Laub