Lesson 25: Synthetic Unit Hydrographs

Learning Objectives

• List watershed characteristics affecting the direct runoff hydrograph (e.g., a unit hydrograph)
• Define the time of concentration (t_c)
• Construct synthetic unit hydrographs using the NRCS (or SCS) approach (dimensionless and triangular methods)
• Describe the conceptual approach used with the Clark synthetic unit hydrograph

Handouts (bring to class)

• Synthetic Unit Hydrographs

Reading Assignment

• Mays 8.8 NRCS (SCS) Unit Hydrograph Procedure

Homework Problems

• Homework 29