River Segmentation
Your Tasks Due Today:
1. Watch the video podcasts shown below before coming to class today.
2. Complete the Video Response Canvas Quiz before coming to class today.
3. Read Pasternack, G. B. 2020. River segmentation methodology. Document prepared from scratch for this class. (9 pages of reading).
4. Complete the Reading Response Canvas Quiz before coming to class today.
Educational content addessed:
- Hierarchical nesting of river landforms
- River classification concept
- Valley types
- Valley confinement types
- Concepts of sediment supply and sediment transport capacity
- Lane's (1955) balance
- Montgomery and Buffington (1997) reach classificaiton
- Rosgen (1996) reach classification
- California "bottom-up" statistical reach classificationand machine learning reach prediction
- Morphological units
Assignment we will work on in class today:
- Assignment 1
Related web links:
- TBD
Video Podcast: River Segmentation - Part 1
This 22-minute presentation introduces the concept of delineating river segments based on the existence of different types of rivers. River landforms exhibit "hierarchical nesting", meaning that small-size features exist inside medium-size features, which in turn exist inside large-size features. After the introduction, then the focus in the video is on the different types of large-size features, valleys.
- 640 x 480 (480p) format that balances speed and quality. (173 MB file)
- 1920 x 1280 (HD) format that provides larges size and best quality. (1.1 GB file)
Video Podcast: River Segmentation - Part 2
This 20-minute presentation introduces the concept of a river reach, explains the physical basis differentiating river reaches, and then presents a few different river reach classificaiton systems.
- 640 x 480 (480p) format that balances speed and quality. (176 MB file)
- 1920 x 1280 (HD) format that provides larges size and best quality. (973 MB file)
